Electricity Industry Metering Code 2005 (WA)

PRINT POST APPROVED PP665002/00041

WESTERN 6333
AUSTRALIAN
GOVERNMENT

ISSN 1448-949X

PERTH, FRIDAY, 23 DECEMBER 2005 No. 243 SPECIAL
PUBLISHED BY AUTHORITY JOHN A. STRIJK, GOVERNMENT PRINTER AT 3.45 PM
© STATE OF WESTERN AUSTRALIA

ELECTRICITY INDUSTRY ACT 2004
_________

ELECTRICITY INDUSTRY
METERING CODE 2005

6334 GOVERNMENT GAZETTE, WA 23 December 2005
Approval by Minister

I, ALAN CARPENTER, Minister for Energy for the State of Western Australia, under section 39(2a) of the Electricity Industry Act 2004 hereby establish the Code contained in this instrument in respect of the matter mentioned in section 39(2)(a) of the Act, which may be cited as the “Electricity Industry Metering Code 2005”.
ALAN CARPENTER
Dated at Perth this 9th day of December 2005.

23 December 2005 GOVERNMENT GAZETTE, WA 6335

TABLE OF CONTENTS

Approval by Minister
Introduction
Part 1 – Preliminary

1.1 Commencement
1.2 Application
1.3 Definitions
1.4 Interpretation
1.5 Inconsistency with other enactments
1.6 Meaning of ‘publish’
1.7 How this Code applies to multiple users
1.8 Transitional – references to “electricity networks corporation” and “electricity retail
corporation” before disaggregation
Part 2 – Code Objectives and Arms-length Treatment

2.1 Code Objectives
2.2 Network operator must treat associates at arms-length
Part 3 – Meters and Metering Installations

3.1 Meters must comply with metrology procedure and National Measurement Act
3.2 Accumulation meters
3.3 Interval meters
3.4 Ownership of meters and communications links
3.5 Requirements for a metering installation
3.6 When network operator may require facilities for remote meter reading
3.7 Requirements for equipment connected to a telecommunications network
3.8 Security of metering installations
3.9 Metering installation types and accuracy requirements
3.10 Programmable settings which affect resolution and accuracy of displayed or captured data
3.11 Reliability of metering installations
3.12 Metering installation design requirements
3.13 Requirements for check metering installations
3.14 Transitional – Metering installations commissioned prior to commencement of this Code
3.15 Application of this Division 3.3
3.16 Wholesale market metering installation requirements
3.17 No transfer under the Customer Transfer Code without interval meter (for Types 1 to 5)
3.18 Interval meter requirements (for Types 1 to 5) applicable to the Electricity Retail Corporation
3.19 Application of this Division 3.4
3.20 Network operator must provide enhanced technology features
3.21 Requirements for metering installations with enhanced technology features
3.22 Network operator must have license to metering software
3.23 Customer signals for load management must be isolated from meter
3.24 Application of this Code to pre-payment meters
3.25 Requirements for pre-payment meters
3.26 Disputes in relation to pre-payment meters
3.27 Prohibition on installing metering installations
3.28 Network operator may register a person to install metering installations
3.29 Network operator must publish and update a list of registered metering installation providers
Part 4 –The Metering Database

4.1 The metering database – general
4.2 The metering database – the registry
4.3 Standing data items
4.4 Discrepancies between database and other data
4.5 Code participants must keep the registry accurate
4.6 Network operator must amend registry when notified of, or aware of, change or error
4.7 Network operator must give notice of changes to standing data
4.8 Ownership, security and rights of access to data
4.9 Period for which energy data must be retained

6336 GOVERNMENT GAZETTE, WA 23 December 2005

Part 5 – Metering Services

5.1 Network operator to use reasonable endeavours to provide access to metering services
5.2 Unwritten service level agreement adopts model service level agreement
5.3 Network operator must read meters
5.4 Network operator must do at least one meter reading that generates an actual value per
year
5.5 Charges for provision of data
5.6 Network operator must provide energy data after meter reading
5.7 Network operator must provide replacement energy data
5.8 Network operator must provide data for user’s Code of Conduct obligations
5.9 Network operator must provide standing data to users
5.10 Network operator must provide standing data to retailer
5.11 Network operator must provide standing data to incoming retailer
5.12 Current user may request energy data
5.13 Current user may request standing data
5.14 Current user may request bulk standing data
5.15 Energy data must be accompanied by meter reading date
5.16 User must provide energy data to network operator
5.17 User must provide standing data and energy data to user’s customers
5.18 User must notify network operator of change to energisation status
5.19 User must provide customer information
5.20 Energy data verification requests
5.21 Test and audit requests
5.22 Energy data – validation, substitution and estimation
5.23 Deemed actual values
5.24 Replacement of energy data with better data
5.25 Estimation and processing must maintain data quality
5.26 Network operator may correct for losses between metering point and associated connection
point
5.27 Network operator may request customer details
5.28 Network operator may elect for electricity networks corporation to be metering data agent
5.29 Consequences of election
5.30 Metering data agency agreement
5.31 Ensuring that the electing network operator’s metering installations comply with this Code
5.32 Metering data agent is not an agent
5.33 Metering data agent is not a service provider
5.34 Electing network operator to reimburse the costs of the electricity networks corporation
Part 6 – Documentation

6.1 Compliance with documents
6.2 Network operator must establish documents
6.3 Transitional – Electricity networks corporation’s initial documents
6.4 Transitional – Communications before communication rules approved
6.5 Requirements for all documents
6.6 Requirements for model service level agreement
6.7 Requirements for communication rules
6.8 Requirements for a metrology procedure
6.9 Network operator may establish a registration process
6.10 Application of this Division 6.2 approval procedure
6.11 Consultation with Code participants
6.12 Authority may establish a Metering Advisory Committee
6.13 Authority may approve a document or specify amendments
6.14 Requirements for approval by Authority
6.15 “Code objective” from Access Code to be taken into account
6.16 Network operator may submit an amended document
6.17 Authority drafts its own documents
6.18 Publication of approved document
6.19 Approved document takes effect
6.20 Review and amendment of network operator’s documents

23 December 2005 GOVERNMENT GAZETTE, WA 6337

Part 7 – Notices and Confidential Information

7.1 Requirements for valid notice
7.2 Code participants
7.3 Receipt
7.4 Confidential Information
7.5 Confidentiality Obligations
7.6 Permitted Disclosure
Part 8 – Dispute Resolution

8.1 Dispute resolution procedures
8.2 Referral of disputes to the Authority
8.3 Informality and expedition
8.4 Authority may determine own procedures
8.5 Powers of Authority
8.6 Timing of dispute resolution
8.7 Written determination
8.8 Dispute resolution to be held in Perth
8.9 Authority’s determination and orders are binding
8.10 Costs of the Authority
8.11 Referral to the Authority does not affect the obligations of the parties
Part 9 – Code Amendment & review

9.1 Authority may recommend amendment
Appendix 1 – Metering installation Types and accuracy requirements in Part 3

A1.1 Metering installation types and accuracy requirements in Part 3
Appendix 2 – Validation of Data in the Metering Database

A2.1 Purpose
A2.2 Validation within the registration process for metering installations Type 1 – 5
A2.3 Validation within the registration process for installations Type 6
A2.4 Validation within the registration process for Type 7 connection points
A2.5 Validation of energy data from Type 1 to Type 5 metering installations with check metering
A2.6 Validation of energy data from Type 1 to Type 5 metering installations with partial check
metering
A2.7 Validation of energy data from Type 1 to Type 5 metering installations with no check
metering
A2.8 Validation of energy data from Type 6 metering installations
A2.9 Validation of energy data for Type 7 connection points
A2.10 Validation within the meter reading process for Type 5 and Type 6 metering installations
Appendix 3 – Data Substitution and Estimation

A3.1 Purpose
A3.2 Data substitution and estimation rules for Type 1 to Type 5 metering installations
A3.3 Data substitution and estimation methods for Type 1 to Type 5 metering installations
A3.4 Data substitution and estimation rules for Type 6 metering installations
A3.5 Data substitution and estimation methods for Type 6 metering installations
A3.6 Substitution and estimation rules for Type 7 connection points
A3.7 Data substitution and estimation for Type 7 connection points
Appendix 4 – Details of Available Metering Services

A4.1 Request for metering services
A4.2 Request for cancellation of a metering service order
Appendix 5 – Transitional – metering services provided by the electricity networks corporation

6338 GOVERNMENT GAZETTE, WA 23 December 2005

Introduction

{This Code is made by the Minister under section 39(2a) of the Electricity Industry Act 2004 (“Act”) in respect of the matter mentioned in section 39(2)(b) of the Act.
The Code may be amended from time to time in accordance with the procedure set out in Part 9 of this Code.
This Code aims to be:

• consistent with the Electricity Networks Access Code 2004, the Electricity Industry (Wholesale Electricity Market) Regulations 2004, and the Electricity Industry Customer Transfer Code 2004; and
• where appropriate given conditions prevailing in Western Australia, consistent with the National Electricity Rules.
This Code sets out the rights, obligations and responsibilities of Code participants associated with the measurement of electricity and the provision of metering services, the rules for the provision of metering installations at connection points, and the rules for the provision of metering services, standing data and energy data.
This Code sets out provisions relating to:

(a) Provision, ownership, installation and maintenance of meters and metering installations; (Part 3)
(b) Accuracy and specification of metering installations; (Part 3)
(c) Revenue metering installations and check metering installations used for the measurement of active energy and where appropriate, reactive energy; (Part 3)
(d) The metering database, including the registry requirements; (Part 4)
(e) Provision of and charges for metering services provided by the network operator; (Part 5)
(f) Collection, processing and provision of energy data and standing data; (Part 5)
(g) Security of, ownership and rights of access to energy data and standing data; (Part 5)
(h) Documents under this Code including model service level agreements and communication rules for the transfer of energy data and standing data to the relevant parties; (Part 6) and
(i) A dispute resolution process. (Part 8)}

23 December 2005 GOVERNMENT GAZETTE, WA 6339
Part 1 – Preliminary

1.1 Commencement

(1) This Code comes into operation upon the day it is published in the
Government Gazette.
{Note: under clauses 1.1(2) and 1.1(3), Part 1, Part 2, clauses 3.14, 3.15, 3.16(1) to 3.16(3), 3.17 and 3.18, Part 6, Part 7 and Part 9 of this Code and Appendix 5 to this Code come into operation on the day this Code is published in the Government Gazette.}

(2)

Despite clause 1.1(1), Part 3 (other than clauses 3.14, 3.15, 3.16(1) to 3.16(3), 3.17 and 3.18 which commence under clause 1.1(1)) and Part 8 of this Code and Appendix 1 to this Code come into operation on 1 March 2006.
(3) Despite clause 1.1(1), Part 4 and Part 5 of this Code and Appendix 2 to
Appendix 4 to this Code come into operation on 1 July 2006.

1.2 Application

(1) Subject to clause 3.24, this Code applies to:

(a)

a network operator, to the extent that a condition of a licence under Part 2 of the Act, or of an exemption order under section 8 of the Act, requires it to comply with this Code; and

(b)

a retailer to the extent that a condition of a licence under Part 2 of the Act, or of an exemption order under section 8 of the Act, requires it to comply with this Code; and

(c)

a generator to the extent that a condition of a licence under Part 2 of the Act, or of an exemption order under section 8 of the Act, requires it to comply with this Code; and

(d)

if the network operator has elected under clause 5.28 for the electricity networks corporation to be its metering data agent — the electricity networks corporation acting as the metering data agent; and
(e) a user who:

(i) is not a Code participant under clause 1.2(1)(b) or 1.2(1)(c); and

(ii)

has an access contract at a connection point on a network of which the network operator is a Code participant; and
{Note: This clause applies to users only if the
network is “covered” by this Code.}

(f) the IMO, to the extent that the market rules provide; and
(g) the Authority, each of which is a “Code participant”.

6340 GOVERNMENT GAZETTE, WA 23 December 2005

1.3 Definitions
In this Code, unless the contrary intention is appears:
“access arrangement” has the meaning given to it in the Access Code.
{Note: At the time this Code was made, the definition in the Access Code was:
“ ‘access arrangement’ means an arrangement for access to a covered
network that has been approved by the Authority under this Code.”}

“Access Code” means the Code made by the Minister under Part 8 of the Act.
{Note: At the time this Code was made, the Access Code was the Electricity
Networks Access Code 2004.}

“access contract” means an agreement between a network operator and a person for the person to have ‘access’ (as defined in section 103 of the Act) to ‘services’ (as defined in section 103 of the Act) on a network.
{Note: The person who has the contract with the network operator is called a
“user”.}

“accumulated energy data” is to be expressed as a measure of energy over time, and means a measurement (including an estimated or substituted measurement) of electricity production or consumption at a metering point, which is accumulated for a period longer than a trading interval.
“accumulated energy register” means the visible indication displayed on an accumulation meter, or the memory location within the meter, that records accumulated energy data.
“accumulation meter” means a meter that measures accumulated energy data and records it in one or more accumulated energy registers, and includes a meter with interval energy data storage capability which is deemed to be an accumulation meter under clause 3.2(2).
“active energy” means a measure of electricity, being the time integral of the product of voltage and the in-phase component of electric current flow across a metering point expressed in Watt hours (Wh) or multiples thereof.
“address attributes” has the meaning given to it in clause 5.19(2)(a).
“apparent energy” means a measure of electricity, being the time integral of the product of voltage and the electric current flow across a metering point expressed in Volt Amp hours (VAh) or multiples thereof.
“associate” has the meaning given to it in the Access Code.
{Note: At the time this Code was made, the definition in the Access Code was: “ ‘associate’, in relation to a person and subject to section 13.2 [of the Access Code, which extends the meaning of ‘associate’ to include any other business of the service provider], has the meaning it would have under Division 2 of Part 1.2 of the Corporations Act 2001 of the Commonwealth if sections 13, 16(2) and 17 of that Act were repealed, except that a person will not be considered to be an associate of a service provider solely because that person proposes to enter, or has entered, into a contract, arrangement or understanding with the service provider for the provision of a covered service.”

23 December 2005 GOVERNMENT GAZETTE, WA 6341
At the time this Code was made, the following are examples of persons who are associates of a body corporate under the Corporations Act 2001 of the Commonwealth:

• a director or secretary of the body corporate; and
• a related body corporate of the body corporate; and

•

another body corporate that can control or influence the composition of the board or the conduct of the affairs of a body corporate.}

“Authority” means the Economic Regulation Authority established under the
Economic Regulation Authority Act 2003.
“average daily consumption” for a metering point is to be expressed as a measure of energy over time, and means a measurement (including an estimated or substituted measurement) of electricity production or consumption over a period at the metering point, divided by the number of days in the period.
“bulk standing data request” has the meaning given to it in clause 5.14(1).
“business day” means any day that is not a Saturday, a Sunday or a public holiday
throughout Western Australia.
“CEO negotiations” has the meaning given to it in clause 8.1(3).
“charge” in relation to a metering service, means the amount to be paid by a Code
participant to the network operator[1] for the provision of the metering service.
[1] If clause 5.29(b) applies, read “network operator” as “network operator or a metering data agent”.
“check meter” means, subject to clause 3.13(5), a meter that meets the requirements of clause 3.13 and is used under this Code as a secondary source of energy data.
“check metering data” means energy data produced by a check meter.
“check metering installation” means a metering installation (or, where a partial check metering installation is permitted under clause 3.13, that part of a metering installation) which contains a check meter.
“checksum” means a single digit numeric identifier that is calculated to reduce the
frequency of NMI data entry errors.
“Code” means this Electricity Industry Metering Code 2005.
“Code objectives” has the meaning given in clause 2.1.
“Code of Conduct” means the Code made by the Minister under section 79 of the
Act.
{Note: At the time this Code was made, the Code of Conduct was the Code of
Conduct (For the Supply of Electricity to Small Use Customers) 2004.}

“Code participant” means a person identified in clause 1.2 of this Code.
“committed”, in clause 3.14, has the meaning given to it in clause 3.14(5).

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“communication rules”, in relation to a network operator’s network, means (subject to clause 6.4) rules governing the file formats, protocols and timeframes for the communication of information and data under clause 6.7 and this Code, and between Code participants, which have been approved by the Authority under Division 6.2.
“communications link” means all communications devices and methods which comply with this Code so as to enable a meter of a metering point to be read from a remote location that lie:

(a)

if the data logger is internal to the device containing the measurement elements — between the data logger and the telecommunications network; and

(b)

if the data logger is external to the device containing the measurement elements but is located at the same site — between the meter and the data logger and between the data logger and the telecommunications network; and

(c)

if the data logger is not located at the same site as the device containing the measurement elements — between the meter and the telecommunications network.
{Note: Clause 3.7 specifies the minimum requirements for communications
devices connected to a telecommunications network.}
“confidential information” has the meaning given to it in clause 7.4.
“connect” means to attach by way of a physical link to a network and to energise the
link.
“connection point”:

(a)

in relation to a network that is a ‘covered network’ — has the meaning given to it in the Access Code; and
{Note: At the time this Code was made, the definition in the Access
Code was:
“ ‘connection point’ means a point on a covered network identified
in an access contract as an entry point or exit point.”}

(b)

otherwise — means a transmission connection or a distribution connection on a network, but does not include a point at which electricity is transferred between the transmission system and the distribution system,
but under clause 3.24 does not include an entry point or an exit point for which the
metering installation includes a pre-payment meter.
“contact details” means the notified electronic communication address, notified facsimile number, notified postal address and notified telephone number of a Code participant.
“contestable customer” means a customer that is “contestable” as defined in the
Customer Transfer Code.
{Note: At the time this Code was made, the definition in the Customer Transfer
Code was:
“ ‘contestable’ in relation to a customer, means a customer at an exit point where the amount of electricity transferred at the exit point exceeds the amount prescribed under section 93 of the Electricity Corporation Act 1994 or under another enactment dealing with the progressive introduction of customer contestability.”}

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“covered network” has the meaning given to it under the Access Code.

{Note: At the time this Code was made, the definition in the Access Code was:
“ ’covered network’ means a network that is covered.”}
“CT” means a transformer for use with meters and protection devices in which the electric current in the secondary winding is, within prescribed error limits, proportional to and in phase with the electric current in the primary winding.
“current user”, for a metering point, means the user recorded as such in the registry
for the metering point.
“customer” has the meaning given to it in section 3 of the Act.
{Note: At the time this Code was made, the definition in section 3 of the Act
was:
“ ‘customer’ means a person to whom electricity is sold for the purpose of
consumption.”}

“customer attributes” has the meaning given to it in clause 5.19(2)(c).
“Customer Transfer Code” means the Code made by the Minister under section
39(2a) of the Act in respect of the matter mentioned in section 39(2)(b) of the Act.
{Note: At the time this Code was made, the Customer Transfer Code was the
Electricity Industry Customer Transfer Code 2004.}

“data” means energy data or standing data.
“data logger” means a metering installation database, metering database or a device that collects electronic signals from a measurement element and records interval energy data.
{Note: A data logger may contain data storage capability, it may be a separate device or be combined with the energy measuring components within one physical device or it may be a combination of the foregoing elements.}

“date for a scheduled meter reading”, for a metering point, means a date determined in accordance with the service level agreement for conducting a scheduled reading (as distinct from a special reading) of the meter at the metering point.
{Note: The date will either:

(a) be specified in a list published under clause 6.6; or

(b)

be determined by applying the reading day number specified in a list published under clause 6.6.}

“day” means unless otherwise specified, the 24 hour period beginning and ending at
midnight Western Standard Time (WST).
“deemed actual value” means an estimated or substituted value designated as such
for a metering point under clause 5.23(1).
“designated source” has the meaning given to it in clause 4.3(2).
“device” includes equipment.
“dispute” means any dispute or difference arising in respect of any matter under or in connection with this Code between any Code participants, the subject matter of which is not also an access dispute under the Access Code, a dispute under the market

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rules, a dispute or a complaint under the Code of Conduct or a dispute under the
Customer Transfer Code.
{Note: Under clause 3.26 a dispute or difference arising in respect of any matter in connection with a pre-payment meter is a “dispute” for the purposes of Part 8 of this Code and the affected parties are “disputing parties” for the purposes of clause 8.1(1).}

“disputing party” has the meaning given to it in clause 8.1(1).
{Note: Under clause 3.26 a dispute or difference arising in respect of any matter in connection with a pre-payment meter is a “dispute” for the purposes of Part 8 of this Code and the affected parties are “disputing parties” for the purposes of clause 8.1(1).}

“distribution connection” means a point at which electricity is transferred to or from
the distribution system.
“distribution system” has the meaning given to it in the Act.
{Note: At the time this Code was made, the definition in the Act was:
“ ‘distribution system’ means any apparatus, equipment, plant or buildings used, or to be used, for, or in connection with, the transportation of electricity at nominal voltages of less than 66kV.”}

“document” means any or all of the documents listed in clause 6.2 and clause 6.9.
“electing network operator” has the meaning given to it in clause 5.28.
“electricity” has the meaning given to it in the Act.
{Note: At the time this Code was made, the definition in the Act was:
“ ‘electricity’ includes electrical energy of any kind however produced, stored,
transported or consumed.”}

“electricity networks corporation” means, subject to clause 1.8, the body corporate
established under section 4(1)(b) of the Electricity Corporations Act 2005.
“electricity retail corporation” means, subject to clause 1.8, the body corporate
established under section 4(1)(c) of the Electricity Corporations Act 2005.
“electronic”:

(a) in connection with a notice (including matters related to a notice such as an address), means (subject to the communication rules) a communication of information by means of guided or unguided electromagnetic energy, or both, by way of packet transfer between and within computer networks using the TCP/IP or other widely-accepted protocol for packet transfer; and
(b) in connection with a meter, means the transfer of information into or out of the meter by way of a telecommunications network or pulsing signals or other widely accepted communications protocols used for the transfer of data between computerised devices.
“energy” means active energy or reactive energy or both as applicable. “energy data” means interval energy data or accumulated energy data. “energy data verification request form” has the meaning given to it in clause
5.20(1).

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“estimate” means an estimate in accordance with this Code.
“General Purpose” means the term applied by the National Measurement Institute constituted under Part 3 of the National Measurement Act to refer to the classification of a meter.
“generating plant”, in relation to a connection point, means all equipment involved in
generating electricity at the connection point.
“generator” means a person who holds (or but for an exemption order under section 8 of the Act would be required by section 7 of the Act to hold) a generation licence or integrated regional licence under Part 2 of the Act for either or both of the construction and operation of generating works, and if any enactment (including regulations made under section 31A of the Electricity Corporation Act 1994) has the effect of deeming such a licence to be held by a part of the person, means that part.
{Note: The definition of ‘generator’ includes all generators but under clause
1.2, this Code only applies to certain generators.}

“good electricity industry practice” means the exercise of that degree of skill, diligence, prudence and foresight that a skilled and experienced person would reasonably and ordinarily exercise under comparable conditions and circumstances consistent with applicable enactments and statutory instruments and applicable recognised codes, standards and guidelines.
{Note: The determination of comparable conditions is to take into account factors such as the relative size, duty, age and technological status of the relevant facility and the applicable regulatory instruments.}

“IMO” means the independent market operator appointed under Part 9 of the Act.
“incoming retailer” has the meaning given to it in the Customer Transfer Code.
{Note: At the time this Code was made, the definition of incoming retailer was:
“ in relation to a CTR or transfer, means the retailer that will supply a
contestable customer after the transfer time”.}

“instrument transformer” means either a CT or a VT.
“interval energy data” means a measurement (including an estimated or substituted measurement) of electricity production or consumption at a metering point which is accumulated for each trading interval or, if applicable under clause 3.16(3), each sub- multiple of a trading interval.
“interval meter” means a meter that measures interval energy data and records it in a data logger, and excludes a meter with interval energy data storage capability which is deemed to be an accumulation meter under clause 3.2(2).
“load” means:

(a)

for a metering point, the amount of electrical energy transferred out of a network at the metering point at a specified time or across a specified period; and

(b)

for a connection point, the aggregate of such loads across all metering points for the connection point.
“maintain” includes (as necessary and as applicable) renew, replace or update.

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“mandatory link criteria”, in relation to a network operator’s network, means criteria under which the installation of a communications link is mandatory under clause 3.6, approved by the Authority under Division 6.2.
“market” means the wholesale electricity market established under Part 9 of the Act.
“market customer” means a rule participant registered as a market customer under
clauses 2.28.10, 2.28.11 or 2.28.13 under Chapter 2 of the market rules.
“market generator” means a rule participant registered as a market generator under
clauses 2.28.6, 2.28.7, 2.28.8 or 2.28.13 under Chapter 2 of the market rules.
“market participant” means a rule participant that is a market generator or a market
customer.
“market rules” has the meaning given to it in the Act.
{Note: At the time this Code was made, the definition of the Act was:
“ ‘market rules’ has the meaning given in section 123(1).”
At the time this Code was made section 123(1) of the Act read:
“Without limiting section 122, the regulations are to provide for there to be rules (the “market rules”) relating to the market and to the operation of the South West interconnected system setting out or dealing with such matters as are prescribed by the regulations.”}

“measurement element” means an energy measuring component of a meter which
converts electricity into either or both of:

(a) an electronic signal; and
(b) a mechanically recorded electrical measurement.
“meter” means a device complying with this Code which measures and records electricity production or consumption but under clause 3.24 does not include a pre- payment meter.
{Note: A meter contains one or more measurement elements.}

“Metering Advisory Committee” means the committee established by the Authority
under clause 6.12.
“metering data agent” of a network operator for a network, means the electricity networks corporation appointed under clause 5.29(a) as the network operator’s metering data agent for the network.
“metering data agency agreement” means an agreement between the network
operator and its metering data agent which complies with clause 5.30.
“metering database” means a database under clause 4.1(1).
“metering equipment” means a part of a metering installation and includes a meter
but under clause 3.24 does not include a pre-payment meter or any part thereof.
{Note: Metering equipment may include manual reading facilities, clocks and, where required, CTs and VTs and computing or communications devices designed to facilitate electronic access and the connections between these items. The communications link is metering equipment.}

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“metering installation” means the devices and methods for the purpose of metrology (excluding under clause 3.24 any of the devices and methods for the purpose of metrology in connection with a pre-payment meter) which lie between:

(a) at one boundary, a metering point; and
(b) at the other boundary, either:

(i) if a telecommunications network is used for the delivery of energy data from the metering point — the point of connection to the telecommunications network; or
(ii) if there is no such telecommunications network — the interface port of either the meter or data logger or both.
{Note: A metering installation may include the combination of several metering points to derive the energy data for a connection point. Alternatively, in some instances where there is more than one metering point for a connection point, each metering point will have its own metering installation.
A metering installation must be classified as a revenue metering installation or a check metering installation.}

“metering point” means:

(a)

for a connection point of Type 1 to Type 6 — a point at which a revenue meter measures electricity production or consumption for the connection point; and
(b) for a connection point of Type 7 — the connection point.
{Note: A metering point for a revenue metering installation is to be located as
close as possible to the connection point: clause 3.5(4).}
“metering service” means a service in connection with the measurement of
electricity production or consumption, including in connection with:

(a)

the provision, installation, operation and maintenance of metering equipment; and
(b) the obtaining, provision, storage and processing of data; and

(c)

services ancillary to the services listed in paragraphs (a) and (b) of this definition.
“metering service order” has the meaning given in clause 6.6(1)(g) and includes a
‘customer transfer request’ as defined in the Customer Transfer Code.
{Note: At the time this Code was made, the definition in the Customer
Transfer Code was:
“ ‘customer transfer request’ means a request by a retailer to a network operator made using the form published under clause 4.1 to transfer a contestable customer at an exit point in the network operator’s network from one retailer to another.”}

“method” includes process, arrangement, technique or algorithm.
“metrology procedure”, in relation to a network operator’s network, means a metrology procedure under clause 6.8 and this Code, approved by the Authority under Division 6.2.

6348 GOVERNMENT GAZETTE, WA 23 December 2005
“metropolitan area” means:

(a) the region described in the Third Schedule to the Metropolitan Region Town Planning Scheme Act 1959; and
(b) the local government district of Mandurah; and
(c) the local government district of Murray.
(d) the townsite of Albany, in the local government district of City of Albany; and
(e) the area constituted by the townsite of Bunbury, in the local government district of City of Bunbury; and
(f) the area constituted by the townsite of Geraldton, in the local government district of City of Geraldton; and
(g) the area constituted by the townsites of Kalgoorlie and Boulder, in the local government district of City of Kalgoorlie-Boulder; and
(h) the area constituted by the townsite of Karratha, in the local government district of Shire of Ashburton; and
(i) the area constituted by the townsites of Port Hedland and South Hedland, in the local government district of Town of Port Hedland.

“model service level agreement”, in relation to a network operator’s network, means a model service level agreement under clause 6.6 and this Code, and approved by the Authority under Division 6.2.
“National Measurement Act” means the National Measurement Act 1960 of the
Commonwealth and any regulations made under that Act.
“network” means the transmission system, distribution system or both, as applicable,
operated by a network operator.
“network operator”, in relation to a network, means a person who holds (or but for an exemption order under section 8 of the Act would be required by section 7 of the Act to hold) a distribution licence, integrated regional licence or transmission licence under Part 2 of the Act for either or both of the construction and operation of the network, and if any enactment (including regulations made under section 31A of the Electricity Corporation Act 1994) has the effect of deeming such a licence to be held by a part of the person, means that part.
{Note: The definition of ‘network operator’ includes all network operators but
under clause 1.2, this Code only applies to certain network operators.}

“NMI” means the unique identifier assigned to a metering point.
“non-regulated contract” has the meaning given to it in clause 3.18.
“notice” means a notice under 7.1 of this Code.
“notified”, in relation to a telephone number, postal address, facsimile number or
electronic communication address, means notified under 7.1 of this Code.
“notify” means to give a notice.

23 December 2005 GOVERNMENT GAZETTE, WA 6349
“participant”, in clause 1.7, has the meaning given to it in that clause.
“power factor” means the ratio of the active energy to the apparent energy at a
metering point.
“pre-payment meter” has the meaning given to it in the Code of Conduct.
{Note: At the time this Code was made, the definition of “pre-payment meter” in
the Code of Conduct was:
“ ‘pre-payment meter’ means a meter that requires a customer to pay for the
supply of electricity prior to consumption.”}

“publish” has the meaning given to it in clause 1.6.
“reactive energy” means a measure in varhours (varh) of the alternating exchange of stored electricity in inductors and capacitors, which is the time-integral of the product of voltage and the out-of-phase component of electric current flow across a metering point.

“reading day number” for a metering point means a number specified in a list published under the service level agreement to denote on which days during a year a scheduled reading (as distinct from a special reading) of the meter at the metering point will be conducted, and the meter reading frequency.
“registered metering installation provider” means a person registered by a network operator under clause 3.28, and who has not been deregistered under the registration process.
“registration process”, in relation to a network operator’s network means a registration process under clause 6.9 and this Code, approved by the Authority under Division 6.2.
“registry” means the part of the metering database which contains standing data in
accordance with this Code.

{Note: The registry is the “meter registry” referred to in the market rules.}

“regulated contract” has the meaning given to it in clause 3.18.
“related body corporate”, in relation to a body corporate, means a body corporate that is related to the first-mentioned body corporate under the Corporations Act 2001 of the Commonwealth.
“representative negotiations” has the meaning given to it in clause 8.1(1).
“retailer” means a person who holds (or but for an exemption order under section 8 of the Act would be required by section 7 of the Act to hold) a retail licence or integrated regional licence under Part 2 of the Act for the sale of electricity to customers, and if any enactment (including regulations made under section 31A of the Electricity Corporation Act 1994) has the effect of deeming the relevant licence to be held by a part of the person, means that part.
{Note: The definition of ‘retailer’ includes all retailers but under clause 1.2, this
Code only applies to certain retailers.}

“revenue meter” means, subject to clause 3.13(5), a meter that is used under this Code as the source of energy data, unless this Code permits an alternative source of energy data to be used.

6350 GOVERNMENT GAZETTE, WA 23 December 2005
“revenue metering installation” means a metering installation (or, where a partial check metering installation is permitted under clause 3.13, that part of a metering installation) which contains a revenue meter.
“rule participant” means a member of the class of persons as set out in clause
2.28.1 of the market rules.
“SCADA data” means energy data the accuracy and quality of which is not required to be determined and which is obtained via a Supervisory Control and Data Acquisition system used to control and operate a network and the generating plant connected to a network.
“senior management negotiations” has the meaning given to it in clause 8.1(2).“sensitive load” means “life support equipment” (as defined in the Code of Conduct) or other electrically powered device which is medically necessary to sustain a person’s life or health.
“service level agreement” means a written or unwritten agreement that sets out the terms and conditions under which a network operator[2] provides metering services to a user, whether or not that agreement also contains other provisions governing the parties’ rights, liabilities and obligations, and in respect of a metering point, metering installation or a metering service means the agreement which relates to, as applicable, the metering point, metering installation or metering service.
[2] If clause 5.29(b) applies, read “network operator” as “network operator and its metering data agent”.
{Note: A service level agreement may be contained in an access contract.
Clause 5.2 deals with the terms of an unwritten service level agreement.}

“site attributes” has the meaning given to it in clause 5.19(2)(b).
“South West interconnected system” has the meaning given to it in the Act.
{Note: At the time this Code was made, some parts of the SWIS were owned
by the Western Power Corporation and some were privately owned.
At the time this Code was made the definition in the Act was:
“the interconnected transmission and distribution systems, generating works
and associated works –

(a)

located in the South West of the State and extending generally between Kalbarri, Albany and Kalgoorlie; and
(b) into which electricity is supplied by –

(i)

one or more of the electricity generation plants at Kwinana, Muja, Collie and Pinjar; or
(ii) any prescribed electricity generation plant.”}

“standing data” has the meaning given to it in clause 4.3(1).
“substitute” means a substitute in accordance with this Code.
“trading interval” means a 30 minute period ending on the hour (WST) or on the half
hour and, where identified by a time, means the 30 minute period ending at that time.

23 December 2005 GOVERNMENT GAZETTE, WA 6351
“transfer”, in relation to a customer, has the meaning given to it in section 1.3 of the
Customer Transfer Code.
{Note: At the time this Code was made, the definition in the Customer Transfer
Code was:
“ ‘transfer’ means a transfer from one retailer to another under this Code of rights and obligations at an exit point in connection with the supply of electricity to a contestable customer.”}

“transformer” means a device that reduces or increases alternating voltage or
electric current.
“transmission connection” means a point at which electricity is transferred to or
from the transmission system.
“transmission system” has the meaning given to it in the Act.
{Note: At the time this Code was made, the definition in the Act was:
“ ‘transmission system’ means any apparatus, equipment, plant or buildings used, or to be used, for, or in connection with, the transportation of electricity at nominal voltages of 66kv or higher.”}

“Type”, in relation to a metering installation or connection point, has the meaning
given in clause 3.9(1) or, if applicable, clause 3.9(2).
“user” means a person who has an access contract.
“validation” means validation in accordance with this Code. “verification” means verification in according with this Code. “voltage” means the electric force or electric potential between 2 points that gives
rise to an electric current.
“VT” means a transformer for use with meters and protection devices in which the voltage across the secondary terminals is, within prescribed error limits, proportional to and in phase with the voltage across the primary terminals.

1.4 Interpretation

(1) Unless the contrary intention is apparent:

(a)

A reference in this Code to an instrument or a provision of an instrument includes an amendment or supplement to, or replacement or novation of, the instrument or provision; and

(b)

A reference in this Code to a person includes the person’s executors, administrators, successors, substitutes and permitted assigns; and

(c)

Where a word or expression is given a particular meaning, other parts of speech and grammatical forms of that word or expression have a corresponding meaning; and

(d)

Where italic typeface has been applied to some words and expressions in this Code, it is solely to indicate that those words or expressions may be defined in clause 1.3 or elsewhere, and in interpreting this Code the fact that italic typeface has or has not been applied to a word or

6352 GOVERNMENT GAZETTE, WA 23 December 2005
expression is to be disregarded. Nothing in this clause 1.4(1)(d) limits
the application of clause 1.3; and

(e) Where information in this Code is set out in braces (namely “{” and “}”), whether or not preceded by the expression “Note”, “Outline” or “Example”, the information:

(i) is provided for information only and does not form part of this Code; and
(ii) is to be disregarded in interpreting this Code; and
(iii) might not reflect amendments to this Code or other instruments or enactments;
and

(f) where information in the Appendices to this Code is set out in braces (namely “{” and “}”), whether or not preceded by the expression “Note”, “Outline” or “Example”, the information:

(i) is provided to assist readers; and
(ii) is to be regarded accordingly in interpreting the Appendices to this Code; and
(iii) may not reflect subsequent amendments to the Code or other enactments or instruments,
and in the event of an inconsistency between the information and
another provision of this Code, the other provision is to prevail;
and

(g) footnotes form part of this Code and have legal effect under clause 5.29(b) and 5.30(3); and
(h) “including” and similar expressions are not words of limitation in this Code; and
(i) a reference in this Code to “time” means Western Standard Time, being the time at the 120th meridian of longitude east of Greenwich in England, or Co-ordinated Universal Time, as required by the National Measurement Act.

(2) In this Code:

(a) a reference to the connection point:
(i) “associated with” a metering point means the connection point for which electricity production or consumption is measured at the metering point; and
(ii) “associated with” a load means the connection point at which the load is supplied with electricity;

and

23 December 2005 GOVERNMENT GAZETTE, WA 6353

(b) a reference to a metering point:

(i) “associated with” or “for” a connection point means a metering point at which electricity production or consumption is measured for the connection point; and
(ii) “on” a network means a metering point associated with a connection point on the network;
and

(c) a reference to the current user:

(i) “associated with”, “for” or “at” a metering point means the user which is recorded in the registry as the current user in respect of the metering point; and
(ii) “associated with”, “for” or “at” a connection point means the user which is recorded in the registry as the current user for a metering point associated with a connection point;
and

(d) a reference to a user:

(i) “associated with”, “for” or “at” a connection point means a user who has an access contract in respect of the connection point; and
(ii) “associated with”, “for” or “at” a metering point means the user at the connection point associated with the metering point;
and

(e) a reference to a customer:

(i) “associated with” a metering point means a customer who is supplied with electricity by the user associated with the metering point; and
(ii) “associated with” a connection point means a customer who is supplied with electricity by the user associated with the connection point;
and

(f) in relation to a network operator, a reference to:

(i)

“its” network means the network in respect of which the network operator is the “network operator” within the meaning of clause 1.3; and

(ii)

“its” metering installation means a metering installation on its network; and

6354 GOVERNMENT GAZETTE, WA 23 December 2005
(iii) “its”[3] metering database means the metering database containing standing data and energy data for metering points on its network; and
[3] If clause 5.29(b) applies, read “its” as “its or its metering data agent’s”.
(iv) “its”[4] registry means the registry contained in its[5] metering database;
[4] If clause 5.29(b) applies, read “its” as “its or its metering data agent’s”.
[5] If clause 5.29(b) applies, read “its” as “its or its metering data agent’s”.

and

(g) a reference to a, or the, metering installation:

(i) “for” a metering point means the metering installation which contains the meter which measures and records electricity production and consumption at the metering point; and
(ii) “for” a connection point means a metering installation for a metering point associated with the connection point; and
(iii) “on” a network means a metering installation for a connection point on the network;
and

(h) a reference to metering equipment “for” or “associated with” a metering point means the metering equipment in the metering installation for the metering point; and
(i) a reference to standing data “for” a connection point means the standing data for a metering point associated with the connection point; and

(j)

a reference to energy data “for” a connection point means the energy data for a metering point associated with the connection point.

1.5 Inconsistency with other enactments

(1) For the purposes of this clause 1.5, two enactments are not inconsistent with each other merely because they prescribe different standards of conduct if a person is able to comply with both enactments by complying with the one which prescribes the highest standard of conduct.
{Example: If one enactment permits a maximum 2% error level, and another enactment permits a maximum 1% error level, then a device with a 1% error level would comply with both enactments, and there would be no inconsistency for the purposes of this clause 1.5.}

(2) To the extent that this Code and the National Measurement Act are
inconsistent, this Code does not operate to the extent of the inconsistency.

(3)

To the extent that this Code and the Electricity Act 1945 or any enactment made under the Electricity Act 1945 are inconsistent, this Code does not operate to the extent of the inconsistency.

23 December 2005 GOVERNMENT GAZETTE, WA 6355

(4)

To the extent that this Code and the Energy Operators (Powers) Act 1979 or any enactment made under the Energy Operators (Powers) Act 1979 are inconsistent, this Code does not operate to the extent of the inconsistency.
(5) To the extent that this Code and the Code of Conduct are inconsistent, this
Code does not operate to the extent of the inconsistency.

(6)

To the extent that this Code and a provision of Part 6 of, or Schedules 5 or 6 to, the Electricity Corporation Act 1994 or any enactment made under Part 6 of, or Schedules 5 or 6 to, the Electricity Corporation Act 1994 are inconsistent, this Code does not operate to the extent of the inconsistency.

1.6 Meaning of ‘publish’
If a person is required by this Code to “publish” a thing, the person must:

(a) place the thing upon an internet website under the person’s control; and

(b)

if the person is the Authority — send an electronic notice to the IMO and to each Code participant who has registered with the Authority for the purposes of this clause 1.6, advising that the thing has been placed on the internet website; and

(c)

if the person is the network operator[6] — send an electronic notice to the Authority, each user of the network operator’s network and the IMO, advising that the thing has been placed on the internet website.
[6] If clause 5.30(3) applies, read “network operator” as “network operator or the metering data agent, as

1.7 How this Code applies to multiple users

(1) This clause 1.7 applies if there is more than one user with an access contract
in respect of a connection point.
(2) In such a case each user in relation to the network is referred to in this clause
1.7 as a “participant”.

(3)

If this Code requires or permits something to be done by the user, that thing may be done by one of the participants on behalf of all the participants, provided that each participant complies with this Code.

(4)

If a provision of this Code refers to the user bearing any costs, the provision applies as if the provision referred to any of the participants bearing any costs.

(5)

If a provision of this Code refers to the user doing something, the provision applies as if the provision referred to one or more of the participants doing the thing on behalf of all the participants.

(6)

If responsibility for complying with the obligations imposed by this Code on the user is allocated among them by their access contracts or their service level agreements, then each user is responsible for complying with the obligations allocated to it.

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1.8 Transitional – references to “electricity networks corporation” and
“electricity retail corporation” before disaggregation
Before bodies corporate are established under section 4(1) of the Electricity
Corporations Act 2005, a reference in this Code to:

(a)

“electricity networks corporation” means the body corporate established under section 4 of the Electricity Corporation Act 1994 in its capacity as a network operator; and

(b)

“electricity retail corporation” means the body corporate established under section 4 of the Electricity Corporation Act 1994 in its capacity as a retailer.

23 December 2005 GOVERNMENT GAZETTE, WA 6357
Part 2 – Code Objectives and Arms-length
Treatment

2.1 Code Objectives

(1) The Code objectives are to:

(a)

promote the provision of accurate metering of electricity production and consumption;

(b)

promote access to and confidence in data of parties to commercial electricity transactions;

(c)

facilitate the operation of Part 8 and Part 9 of the Act, the Customer Transfer Code and the Code of Conduct.

(2)

Code participants must have regard to the Code objectives when performing an obligation under this Code, whether or not the provision under which they are performing refers expressly to the Code objectives.

2.2 Network operator must treat associates at arms-length

(1) A network operator:[7]
[7] If clause 5.29(b) applies, read “network operator” as “network operator and a metering data agent”.

(a)

must treat all Code participants that are its associates on an arms- length basis; and

(b)

without limiting clause 2.2(1)(a), must ensure that no Code participant that is its associate receives a benefit in respect of this Code, unless either:

(i)

the benefit is attributable to an arm’s length application of this Code to the Code participant; or

(ii)

the network operator[8] also makes the benefit available to all other Code participants on the same terms and conditions.
[8] If clause 5.29(b) applies, read “network operator” as “network operator or metering data agent”.

(2) Subject to:

(a)

the ‘ring-fencing objectives’ (as defined in the Access Code) and any ‘ring-fencing rules’ (as defined in the Access Code) made under the Access Code; and

(b)

any regulations made under section 31A of the Electricity Corporation Act 1994,

if a network operator[9] is an ‘integrated provider’ (as defined in the Access Code), a reference in clause 2.2(1) to an associate of the network operator10 does not include the integrated provider.
[9] If clause 5.29(b) applies, read “network operator” as “network operator or metering data agent”.

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Part 3– Meters and Metering Installations

Division 3.1 – Meters

3.1 Meters must comply with metrology procedure and National Measurement
Act

A network operator must ensure that its meters meet the requirements specified in the applicable metrology procedure and also comply with any applicable specifications or guidelines (including any transitional arrangements) specified by the National Measurement Institute under the National Measurement Act.
3.2 Accumulation meters

(1)

An accumulation meter must, at least, conform to the requirements specified in the applicable metrology procedure and display, or permit access to a display of, the accumulated electricity production or consumption at the metering point using dials, a cyclometer, an illuminated display panel or some other visual means.

(2)

A network operator may install a meter with interval energy data storage capability and other enhanced technology features but (by recording it as an accumulation meter in the registry) declare it to be an accumulation meter and only record the accumulated energy data registered by the meter.
(3) Despite clause 3.2(2), Division 3.4 applies in respect of the enhanced
technology features of a meter.
3.3 Interval meters

(1)

An interval meter must, at least, have an interface to allow the interval energy data to be downloaded to a portable hand held device or laptop computer. The interface must be compatible with the requirements specified in the applicable metrology procedure.

(2)

Subject to the security protocols in clause 3.8 and the licensing requirements in clause 3.22(a), the interfaces in clause 3.3(1) may be used to install or update the operating software contained in the meter.

(3)

If a metering installation is required to include a communications link, then the communications link must, where necessary, include a modem and isolation device approved under the relevant telecommunications regulations, to allow the interval energy data to be downloaded to the metering database via a telecommunications network.

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3.4 Ownership of meters and communications links
A network operator owns each meter on its network and all communications links associated with the meter despite any purported agreement to the contrary.
{Example: An agreement regarding the financial aspects of providing the metering installation may purport to make provision to the contrary to clause 3.4.}
{Note: See also clause 4.8(1) which deals with ownership of data.}
Division 3.2 — Metering Installations

3.5 Requirements for a metering installation
{Note: A metering installation may consist of various combinations of metering
equipment including:

• a CT;
• a VT;
• secure and protected wiring from the CT and the VT to the meter;
• an appropriately constructed panel on which the meter is mounted;

•

an appropriately constructed panel on which the data logger is mounted;
• a facility to keep the metering installation secure from interference;
• test links and fusing;
• summation equipment; or

•

one or more metering points to derive the energy data for a connection point.}

(1) A network operator must ensure that there is a metering installation at every
connection point on its network which is not a Type 7 connection point.
(2) Unless it is a Type 7 metering installation, a metering installation must:

(a) contain a device which has a visible or otherwise accessible display as detailed in clause 3.2(1); and
(b) have a measurement element for active energy; and
(c) if required by Table 3 in Appendix 1, have a measurement element for reactive energy; and
(d) permit collection of data at the level of accuracy required by clause 3.9.
(3) A network operator must, for each metering installation on its network, on and
from the time of its connection to the network:

(a) unless otherwise agreed between the network operator and a user, provide, install, operate and, subject to clause 3.5(7), maintain the metering installation in accordance with:
(i)         this Code; and
(ii)         good electricity industry practice; and
(iii)        the metrology procedure for the network; and
(iv)        the service level agreement between the network operator and the user in respect of the metering installation; and

6360 GOVERNMENT GAZETTE, WA 23 December 2005

(b) ensure that the metering installation complies with clause 3.9; and

(c)

without limiting clause 3.5(3)(a) ensure that the metering equipment in the metering installation:

(i)

is suitable for the range of operating conditions to which it will be exposed (e.g. temperature, impulse levels); and

(ii)

operates within the defined limits for that metering equipment as specified in the approved metrology procedure.

(4) Except for a Type 7 metering installation, a network operator must ensure that the metering point for a revenue metering installation is located as close as practicable in accordance with good electricity industry practice to the connection point.
(5) If there is no written service level agreement in place between the network operator and the user in respect of the provision, installation, operation or maintenance of a metering installation, the network operator or the user may require the other to negotiate and enter into a written service level agreement in respect of (as applicable) the provision, installation, operation or maintenance, in accordance with clause 5.1.
{Note: If there is no written service level agreement, any metering services provided will be governed by an unwritten service level agreement under clause 5.2.}

(6) A network operator may only impose a charge for providing, installing, operating or maintaining a metering installation in accordance with the applicable service level agreement between it and the user.
(7) Unless otherwise agreed, a network operator is not required to maintain any
metering equipment owned by user or user’s customer.
{For example: Equipment owned by the user or its customer might include CTs, meter panels and secondary wiring installed as part of a switchboard.}

(8)

Nothing in this clause 3.5 limits a network operator’s responsibility under any other enactment or agreement in relation to a metering installation prior to the time of its connection to the network.
(9) If the network operator becomes aware that a metering installation does not
comply with this Code, the network operator must:

(a) advise affected parties of the non-compliance; and

(b)

arrange for the non-compliance to be corrected as soon as practicable following the network operator becoming aware of .

3.6 When network operator may require facilities for remote meter reading

A network operator may in accordance with its mandatory link criteria require the installation of a communications link (in circumstances in addition to those required under clause 3.16(2)).

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3.7 Requirements for equipment connected to a telecommunications network
All devices that may be connected to a telecommunications network must:

(a) be compatible with the telecommunications network; and
(b) comply with all applicable State and Commonwealth enactments.
{Note: for example, devices connected to a telecommunications network must be approved by the Australian Communications Authority established under the Australian Communications Authority Act 1997 of the Commonwealth.}

3.8 Security of metering installations

Subject to clause 3.27, a network operator must, for each metering installation on its network, ensure that the metering installation is secured by means of devices or methods which, to the standard of good electricity industry practice, hinder unauthorised access to the metering installation and enable unauthorised access to be detected.
{Note: Energy data held in a network operator’s metering installation must be
secured in accordance with clauses 4.8(4)(a) and 4.8(5).}

3.9 Metering installation types and accuracy requirements

(1)

Subject to clause 3.9(2), the “Type” for a connection point (and for a metering installation for the connection point) is shown in the first column in Table 3 in Appendix 1, on the row in which the connection point’s annual load is shown in the second column.
(2) A connection point is Type 7 if it is associated with one or more of the following
loads:

(a) street, traffic, park, community, or security lighting; or
(b) ticket issuing machines, parking meters, or community watering systems; or
(c) telephone service requirements; or
{Example: Telephone service requirements may include telephone boxes, fibre optic cable routers and devices that connect pay television services.}

(d) loads consuming less than the starting electric current of a meter; or
(e) other loads of a similar nature.

(3) Subject to clauses 3.9(4), 3.9(5) and 3.9(7), each metering installation must meet at least the requirements for that Type of metering installation specified in Table 3 in Appendix 1.
{Note: Without limiting clause 3.9(3), a network operator must ensure that the incidence and magnitude of burden changes on any secondary winding supplying its metering installation do not cause the accuracy of the metering installation to fail to meet the requirements of Table 3 in Appendix 1 for that Type of metering installation.}

(4)

A network operator (acting in accordance with good electricity industry practice) may determine that the maximum allowable clock error for a Type 4 or Type 5 metering installation is to be greater than that specified in Table 3 in

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Appendix 1 in order to accommodate evolving whole-electric current technologies, providing that such relaxation is consistent with the Code objectives.
{Note: Under clause 1.5 this ability to relax the clock error will be
subject to the National Measurement Act and other enactments.}

(5)

A network operator (acting in accordance with good electricity industry practice) may determine that the maximum allowable clock error for a Type 6 metering installation is greater than that specified in Table 3 (read with Table 4 to Table 7 in Appendix 1) providing that such relaxation is consistent with the Code objectives.
{Note: Under clause 1.5 this ability to relax the clock error will be
subject to the National Measurement Act and other enactments.}

(6) Subject to clause 3.1, to use direct connected meters may be used for Type 4
to Type 6 metering installations it is acceptable.

(7)

For a metering installation used to supply a customer with requirements above 1000 volts that require a VT and whose annual consumption is below 750 MWh, the metering installation must meet the relevant accuracy requirements of Type 3 metering installation for active energy only.
{Note: The 1000 volt limit derives from Australian Standard 3000-
2000.}

(8) For the purposes of this clause 3.9, the method for calculating the overall error of a metering installation is the vector sum of the errors of each component part, i.e. a + b + c, where:
a = the error of the VT and wiring b = the error of the CT and wiring c = the error of the meter.

(9) If compensation is carried out within the meter then the resultant metering
system error must be as close as practicable to zero.
(10) All measurements in Table 3 in Appendix 1 are to be referred to 25 degrees
Celsius.

3.10 Programmable settings which affect resolution and accuracy of displayed or
captured data

A network operator[11] must ensure that any programmable settings within any of its metering installations, data loggers or peripheral devices, that may affect the resolution of displayed or stored data, meet the relevant requirements specified in the applicable metrology procedure and comply with any applicable specifications or guidelines (including any transitional arrangements) specified by the National Measurement Institute under the National Measurement Act.
[11] If clause 5.29(b) applies, read “network operator” as “network operator and a metering data agent”.

23 December 2005 GOVERNMENT GAZETTE, WA 6363

3.11 Reliability of metering installations

(1) A network operator must ensure that a metering installation on its network
permits collection of data:

(a)

within the time specified in the applicable service level agreement at a level of availability of at least 99% per annum for instrument transformers and other components of the metering installation, not including the communications link; and

(b)

if the metering installation has a communications link, within the time specified in the applicable service level agreement at a level of availability of at least 95% per annum for the communications link.

(2)

If an outage or malfunction occurs to a metering installation, the network operator must (subject to clause 3.5(7)) make repairs to the metering installation in accordance the applicable service level agreement.
(3) A Code participant who becomes aware of an outage or malfunction of a
metering installation must advise the network operator as soon as practicable.

3.12 Metering installation design requirements

(1) A network operator must ensure that each metering installation complies with
at least the following requirements:

(a) the CT core forming part of the revenue metering installation must not be used for any purpose other than revenue metering and check metering;
(b) the CT secondary wiring forming part of the revenue metering installation must not be used for any other purpose;
(c) subject to clause 3.13(3), the CT secondary wiring forming part of a check metering installation must not be used for other purpose (e.g. local metering, indication or protection) unless with the written approval of the network operator, which must not be unreasonably withheld; and
{Note: If the conditions of clause 3.13(3) apply, network operator’s written approval is not required under this clause 3.12(1)(c).}

(d)

if a VT is required and separate secondary windings are not provided, then the voltage supply to each revenue metering installation and check metering installation must be separately fused and located in an accessible position as near as practicable to the VT secondary winding; and

(e)

if more than one VT is available, a voltage changeover scheme must be provided; and

(f)

secondary wiring must be by the most direct route and the number of terminations and links must be kept to a minimum.

(2)

A network operator must ensure that instrument transformers in its metering installations comply with the relevant requirements of any applicable specifications or guidelines (including any transitional arrangements) specified

6364 GOVERNMENT GAZETTE, WA 23 December 2005
by the National Measurement Institute under the National Measurement Act
and any requirements specified in the applicable metrology procedure.

(3)

A network operator must provide isolation facilities, to the standard of good electricity industry practice, to facilitate testing and calibration of the metering installation.

(4)

A network operator must maintain drawings and supporting information to the standard of good electricity industry practice, detailing the metering installation for maintenance and auditing purposes.

3.13 Requirements for check metering installations

(1)

A network operator must procure the user or the user’s customer to install (or arrange for the installation of) a full check metering installation or partial check metering installation in accordance with the requirements set out in Table 1.
Table 1 Check Metering Installation Requirements

Type Energy (GWh pa) per metering point Check Metering Requirements

1 greater than 1000 Full check metering installation

2 100 to 1000 Partial check metering installation

3 0.75 to less than 100 No requirement

Less than 0.75 No requirement

4, 5 and 6

(2) A full check metering installation is a metering installation separate from the revenue metering installation, using separate CT cores and separately fused VT secondary circuits supplied from separate secondary windings.
(3) A partial check metering installation:

(a) may be supplied from secondary circuits used for other purposes; and
{Note: If this clause 3.13(3) applies, then a partial check metering installation may be supplied from secondary circuits used for other purposes without the written approval of the network operator as required under clause 3.12(1)(c).}

(b)

may involve the use of other energy data or SCADA data for trading intervals available to the network operator[12] in electronic format as part of a validation process; and

(c)

must be physically arranged in a manner determined by the network operator, acting in accordance with good electricity industry practice.
[12] If clause 5.29(b) applies, read “network operator” as “metering data agent”.

(4) A check metering installation for a metering point:

(a)

must not exceed twice the error level permitted under clause 3.9 for the revenue metering installation for the metering point; and

(b)

must be connected in such a way that it measures the same load conditions as the revenue metering installation for the metering point; and

23 December 2005 GOVERNMENT GAZETTE, WA 6365

(c)

must be otherwise consistent with the requirements of Table 3 in Appendix 1 and clause 3.12(1)(c).
{Note: See also clause 3.12(1) which deals with what may be common between
revenue metering and check metering.}

(5)

Where a check metering installation for a metering point satisfies the requirements under this Code for a revenue metering installation for the metering point, the average of the 2 validated data sets may be used to determine the energy measurement.

3.14 Transitional – Metering installations commissioned prior to commencement
of this Code

(1)

Nothing in this Code requires a Code participant to upgrade, modify or replace a metering installation or any part of a metering installation which was commissioned before this clause 3.14 commenced.

(2)

Subject to clauses 3.14(3) and 3.14(4), nothing in this Code requires a Code participant to upgrade, modify or replace a metering installation or any part of a metering installation which was committed to before this clause 3.14 commenced and commissioned no later than 18 months after this clause 3.14 commenced.
{Note: For example:

•

Type 1 metering installations and Type 2 metering installations commissioned or committed to before this clause 3.14 commenced that do not incorporate check metering installations are not required to install check metering installations retrospectively.

•

Type 3 metering installations and Type 4 metering installations commissioned or committed to before this clause 3.14 commenced that are not equipped with a communications link are not required to have a communications link installed retrospectively.}

(3)

If under clause 3.14(2) a metering installation uses metering class CTs and VTs that do not comply with Table 3 in Appendix 1, then the network operator must either or both:

(a) install meters of a higher class accuracy; and

(b)

apply accuracy calibration factors within the meter to compensate for CT and VT errors,
in order to achieve the overall accuracy requirements set out in Table 3 in
Appendix 1.

(4)

If under clause 3.14(2) a metering installation does not contain suitable metering class CTs at an appropriate location in the circuit, then the network operator may use protection CTs but the metering installation must still comply with Table 3 in Appendix 1.

6366 GOVERNMENT GAZETTE, WA 23 December 2005

(5) Subject to clause 3.14(6), a person has “committed” to a metering installation if the person, intending to install or upgrade a metering installation, begins to put their intention into effect by doing an act which is more than merely preparatory to undertaking the installation or upgrade by:

(a) making a substantial financial commitment in respect of the installation or upgrade of the metering installation, such as committing to:
(i) a significant obligation which is legally binding; or
(ii) an obligation which would have significant commercial repercussions if cancelled, discontinued or dishonoured;

or

(b)

commencing, or procuring the commencement of, the installation or upgrade of the metering installation.

(6) A person will not be considered to have committed to a metering installation
merely because the person has:
(i)         undertaken preparatory system or other studies in respect of the installation or upgrade of the metering installation; or
(ii)         engaged in preparatory planning, design or costing activities in respect of the installation or upgrade of the metering installation; or
(iii)        obtained an approval in respect of the installation or upgrade of the metering installation, unless the approval comes within the description in clauses 3.14(5)(a) or 3.14(5)(b).

Division 3.3 — Metering Requirements for the Wholesale Electricity

Market and Customer Transfer

3.15 Application of this Division 3.3
This Division 3.3 applies to the network described in Part 9 of the Act.
3.16 Wholesale market metering installation requirements

(1) The network operator, must ensure that a Type 1 metering installation to Type
5 metering installation on the network:

6428 GOVERNMENT GAZETTE, WA 23 December 2005
used for substitution purposes, e.g. installations where revenue and check
meters are installed.

(b)

Method 11 substitutions also include the use of data from similar meters where the load profile of the second meter is a good match to the load profile of the meter for which substitutions are being made, e.g. where meters are installed on each end of a transmission line where the difference due to line losses can be accurately determined; where meters are installed on parallel feeders where supply is ‘to’ and ‘from’ common buses and line impedances are similar.

(3) Substitution Method 12

Data values may be calculated for an unknown feed to a node based on the other known energy flows to or from that node.
(4) Substitution Method 13

(a)

Data from an energy management system or SCADA data may be used for substitution purposes, where the data originates from a similar measurement point as the meter for which substitutions are being made.

(b)

Data from an energy management system or SCADA data may be data which is inferior in accuracy or resolution and which is in a dissimilar format to the energy data, (e.g. 30 Min. demand values). It may be necessary to adjust the data in both magnitude and form in order that the substitution is of an acceptable quality.
(5) Substitution Method 14

Where data substitution methods 11, 12, and 13 cannot be carried out, then the network operator172 may substitute for the missing data using the “Nearest Equivalent
Day” or “Like Day” method, as detailed in the table below.

METHOD 14

Substitution Day “Nearest Equivalent Day” or “Like Day” (in order of availability)
Monday Monday ♦♦
Tuesday Tuesday ♦♦ Wednesday♦♦ Thursday ♦♦ Wednesday ♦ Thursday ♦
Wednesday Wednesday ♦♦ Tuesday ♦ Thursday ♦♦ Thursday ♦ Tuesday ♦♦
Thursday Thursday ♦♦ Wednesday ♦ Tuesday ♦ Wednesday ♦♦ Tuesday ♦♦
Friday Friday ♦♦
Saturday Saturday ♦♦
Sunday Sunday ♦♦
Substitutions for ‘Like Day’ to be as detailed above, unless:
1. If no readings are available on the first listed day, then the next listed preferred day is to be used.
2. The substitution day was a public holiday, in which case the most recent Sunday is to be used.
3. The substitution day was not a public holiday and the ‘Like Day’ is a public holiday, in which case the substitution ‘Like Day’
to be used must be the most recent business day.
♦♦ Occurring in the week preceding that in which the substitution day occurs.
♦ Occurring in the same week as the substitution day

23 December 2005 GOVERNMENT GAZETTE, WA 6429

(6) Substitution Method 15

Where data substitution methods 11, 12, and 13 cannot be carried out, then the network operator[173] may substitute for the missing data using the “Nearest Equivalent
[173] If clause 5.29(b) applies, read “network operator” as “metering data agent”.
Day” or “Like Day” method, as detailed in the Table below.

METHOD 15

The intervals to be substituted will be plugged using an average of each interval from the proceeding 4 weeks, or part thereof.
This averaging technique may be applied in the following ways:
a) where the averaged intervals are simply ‘plugged’ into the intervals requiring substitution.
b) where the averaged intervals are used to provide the profile for the ones to be ‘plugged’ to a pre-
determined number of pulses for the total substitution period.

However if data is required to be substituted for a public holiday then the most recent available Sunday will be used.

(7) Substitution Method 16

(a) Where data substitution is required for any period greater than 7 days, consideration, consultation and agreement must take place between the affected parties to resolve any abnormal equivalent days that may be applicable.
(b) Method 16 substitutions are:
(i) data substitutions of any format for periods greater than 7 days that are based on an agreement between all the affected parties;
(ii) changes to existing substitutions for any period that are carried out where the affected parties have directed that as a result of site or customer specific information, the original substitutions are in error.

(8) Substitution Method 17

Data substitutions for periods up to, but not exceeding 2 hours, may be carried out by simple linear interpolation.
(9) Substitution Method 18

This substitution method covers the situation where an alternate method of substitution operator[174]. This may be a globally applied method or a site specific method where an has been agreed with the market participant, the applicable user and the network

adjusted profile is used to take into account local conditions which affect consumption (e.g. local holiday or customer shutdown), or where alternate data may be able to be used for quality checks and minor adjustments of an estimated profile such as using meter register data.
[174] If clause 5.29(b) applies, read “network operator” as “metering data agent”.

METHOD 51

Substitution Day “Nearest Equivalent Day” or “Like Day” (in order of availability)

Monday Monday ♦♦ Monday ♦
Tuesday Tuesday ♦♦ Wednesday♦♦ Tuesday ♦ Wednesday ♦
Wednesday Wednesday ♦♦ Tuesday ♦♦ Thursday ♦♦ Wednesday ♦ Thursday ♦ Tuesday ♦
Thursday Thursday ♦♦ Wednesday ♦♦ Tuesday ♦♦ Thursday ♦ Wednesday ♦ Tuesday ♦

Friday Friday ♦♦ Friday ♦
Saturday Saturday ♦♦ Saturday ♦
Sunday Sunday ♦♦ Sunday ♦
Substitutions for ‘Like Day’ to be as detailed above, unless:
1. If no readings are available on the first listed day, then the next listed preferred day is to be used.
2. The substitution day was a public holiday, in which case the most recent Sunday is to be used.
3. The substitution day was not a public holiday and the ‘Like Day’ is a public holiday, in which case the substitution ‘Like Day’
to be used must be the most recent business day.
♦♦ Occurring in the same week as the substitution day in the previous year.
♦ Occurring in the week preceding that in which the substitution day occurs in the previous year.

(11) Substitution Method 52
This method is known as the Previous Meter Reading Method. Where data substitution methods 11, 12, and 13 cannot be carried out, then the network operator176 may
substitute for the missing data using the “Nearest Equivalent Day” or “Like Day”
method, as detailed in the Table below.

METHOD 52

Substitution Day “Nearest Equivalent Day” or “Like Day” (in order of availability)

Monday Monday ♦♦ Monday ♦
Tuesday Tuesday ♦♦ Wednesday♦♦ Tuesday ♦ Wednesday ♦
Wednesday Wednesday ♦♦ Tuesday ♦♦ Thursday ♦♦ Wednesday ♦ Thursday ♦ Tuesday ♦
Thursday Thursday ♦♦ Wednesday ♦♦ Tuesday ♦♦ Thursday ♦ Wednesday ♦ Tuesday ♦

Friday Friday ♦♦ Friday ♦
Saturday Saturday ♦♦ Saturday ♦
Sunday Sunday ♦♦ Sunday ♦

Substitutions for ‘Like Day’ to be as detailed above, unless:
1. If no readings are available on the first listed day, then the next listed preferred day is to be used.
2. The substitution day was a public holiday, in which case the most recent Sunday is to be used.
3. The substitution day was not a public holiday and the ‘Like Day’ is a public holiday, in which case the substitution ‘Like Day’
to be used must be the most recent business day.
♦♦ Occurring in the last whole week of the previous meter reading period.

23 December 2005 GOVERNMENT GAZETTE, WA 6431

(12) Substitution Method 53

(a) Where data substitution is required for any period greater than 7 days, consideration, consultation and agreement must take place between the affected parties to resolve any abnormal equivalent days that may be applicable.
(b) Method 53 substitutions are:
(i) data substitutions of any format for periods greater than 7 days that are based on an agreement between all the affected parties;
(ii) changes to existing substitutions for any period that are carried out where the affected parties have directed that as a result of site or customer specific information, the original substitutions are in error.

(13) Substitution Method 54

Data substitutions for periods up to, but not exceeding 2 hours, may be carried out by simple linear interpolation.
(14) Substitution Method 55

This substitution method covers the situation where an alternate method of substitution operator[177]. This may be a globally applied method or a site specific method where an has been agreed with the market participant, the applicable user and the network

adjusted profile is used to take into account local conditions which affect consumption (e.g. local holiday or customer shutdown), or where alternate data may be able to be used for quality checks and minor adjustments of an estimated profile such as using meter register data.
(15) Substitution Method 56

This substitution method covers the situation where a substitution for interval energy data is required for a period prior to the first meter read. The data substitution must be done in accordance with an approved metrology procedure.
[177] If clause 5.29(b) applies, read “network operator” as “metering data agent”.

A3.4 Data substitution and estimation rules for Type 6 metering installations

(1) This clause A3.4 applies in respect of Type 6 metering installations.
(2) The network operator[178] may apply the following substitution and estimation methods:
[178] If clause 5.29(b) applies, read “network operator” as “metering data agent”.

(a) Substitutions may be method 61, 62, 63, or 64.
(b) Estimations may be method 61,62 or 65.

(3)

All affected parties must be notified of any substitution or estimation within 2 business days after the data substitution or estimation being carried out, or such other period as may be agreed.

A3.5 Data substitution and estimation methods for Type 6 metering installations

(1) This clause A3.5 applies in respect of Type 6 metering installations.

6432 GOVERNMENT GAZETTE, WA 23 December 2005

(2) Substitution Method 61: Previous Year Method (average daily consumption).

Substituted or estimated meter reading = average daily consumption from the same or similar meter reading period last year multiplied by number of days required to be substituted.
(3) Substitution Method 62: Previous Meter Reading Method (average daily consumption).

Substituted or estimated meter reading = average daily consumption from the previous meter reading period multiplied by the number of days required to be substituted or estimated. Where the scheduled meter reading frequency is less frequent than monthly, this substitution or estimation method is to be used only when the consumption from the same, or similar, meter reading period last year is not available.
(4) Substitution Method 63: Customer Class Method.

Substituted meter reading = average daily consumption for this customer class with the same type of usage multiplied by number of days required to be substituted.

(a)

Method 63 is to be used only when the consumption from the same, or similar, meter reading period last year and the consumption from the previous meter reading period is not available.
(b) Customer classes are Residential, Non-Residential, Farm and Public Lighting.
(c) Types of usage are peak and off-peak.
(5) Substitution Method 64; Agreed Method.

(a)

The market participant, the applicable user and the network operator[179] may agree to use another method of substitution (which may be a modification of an existing substitution method) where none of the existing substitution methods is applicable.
(b) The specifics of this substitution method may involve a globally applied method
[179] If clause 5.29(b) applies, read “network operator” as “metering data agent”.
or a site-specific method.

(6) Substitution Method 65: Estimation by average daily consumption.

Estimate = average daily consumption multiplied by number of days required to be estimated.

Estimation method 65 is to be used only when the consumption from the same, or similar, meter reading period last year and the consumption from the previous meter reading period are not available.

A3.6 Substitution and estimation rules for Type 7 connection points
This clause A3.6 applies in respect of Type 7 connection points.
The network operator[180] may apply method 71, 72, 73, or 74 substitution methods.
[180] If clause 5.29(b) applies, read “network operator” as “metering data agent”.
All affected parties must be notified of any substitution or estimation within 2 business days of the data substitution or estimation being carried out, or such other period as may be agreed.

23 December 2005 GOVERNMENT GAZETTE, WA 6433

A3.7 Data substitution and estimation for Type 7 connection points

(1) This clause A3.7 applies in respect of Type 7 connection points.
(2) Substitution Method 71: Recalculation
The energy data is substituted with the energy data obtained by a recalculation based on the current Inventory tables, Load tables and On/Off tables.

(3) Substitution Method 72: Revised tables.

Where the error in the calculation of the energy data is due to errors in the Inventory table, Load Table or On/Off table, the energy data is substituted with the energy data obtained by a recalculation based on the most recent Inventory tables, Load tables and On/Off tables for which there was no error.
(4) Substitution Method 73: Revised Algorithm.

Where the error in the calculation of the energy data is due to an error in the algorithm, the energy data is substituted with the most recent energy data for which there was no error.
(5) Substitution Method 74: Agreed Method.

(a)

The market participant, the applicable user and the network operator[181] may agree to use another method of substitution (which may be a modification of an existing substitution method) where none of the existing substitution methods is applicable.
(b) The specifics of this substitution method may involve a globally applied method
[181] If clause 5.29(b) applies, read “network operator” as “metering data agent”.
or a site-specific method.

6434 GOVERNMENT GAZETTE, WA 23 December 2005

Appendix 4 – Details of Available Metering Services

A4.1 Request for metering services
{Note: A metering service order includes a customer transfer request under the
Customer Transfer Code.}

(1) A network operator’s[182] metering service order form must require the user to provide
the following information:

(a) either or both of the name and, if applicable, identification number or code of the user submitting the request for a metering service; and
(b) either:
[182] If clause 5.29(b) applies, read “network operator’s” as “network operator’s and metering data
(i) if the network operator has not allocated a NMI for the metering point — the customer’s:

name; and
location identifier or lot number and, if applicable, unit number; and
street number; and
street; and
suburb or district; and
meter number(s),
or
(ii) if the network operator has allocated a NMI for the metering point — the customer’s NMI and checksum;

and

(c) the type(s) of metering service being requested; and
(d) the user’s metering service order identifier, to enable the metering service order
to be tracked.

(2)

A network operator[183] must develop a metering service order form suitable for transmission by electronic communication for use by users and may make a metering service order form available on its websites.

(3)

Upon the successful, or unsuccessful, completion of the work, or the cancellation of a metering service order, the network operator[184] must send a response to the user with details of the status of the requested work.
[183] If clause 5.29(b) applies, read “network operator” as “network operator and metering data agent”.
[184] If clause 5.29(b) applies, read “network operator” as “network operator or metering data agent”. 185 If clause 5.29(b) applies, read “network operator” as “network operator or metering data agent”. 186 If clause 5.29(b) applies, read “network operator” as “network operator or metering data agent”. 187 If clause 5.29(b) applies, read “network operator” as “network operator or metering data agent”. 188 If clause 5.29(b) applies, read “network operator” as “network operator or metering data agent”. 189 If clause 5.29(b) applies, read “network operator” as “network operator and metering data agent”.

23 December 2005 GOVERNMENT GAZETTE, WA 6435

(4)

Completion of a metering service order may result in either or both of changes to standing data and collection of energy data, in which case the provisions of this Code apply.
(5) A user may provide the network operator185 with a preferred appointment date and time
for the network operator186 to carry out the metering service order.
(6) The network operator187 must make reasonable endeavours to perform the metering
service order at the preferred date and time provided under clause A4.1(5).
(7) Unless otherwise agreed, a user who wishes to revise a previously-notified preferred
date and time must:

(a) request the network operator188 to cancel the metering service order, and

(b)

submit a new metering service order for the same NMI and type of metering service, specifying the new preferred date and time, and a new metering service order identifier.

A4.2 Request for cancellation of a metering service order

(1) A network operator189 must publish a form to allow a user to request the network
operator[190] to cancel a metering service order.
(2) The metering service order cancellation form must require user to provide:
[190] If clause 5.29(b) applies, read “network operator” as “network operator or metering data agent”. 191 If clause 5.29(b) applies, read “network operator” as “network operator or metering data agent”.

(a) the metering point’s NMI; and
(b) the user’s metering service order identifier.

(3)

Upon receipt of a request to cancel a metering service order, the network operator191 must use reasonable endeavours to ensure that the previously requested work is not carried out and costs are not incurred.

(4)

A service level agreement (and a model service level agreement) may provide that, to the extent that the network operator complies with clause A4.2(3), the user must pay to the network operator the amount incurred by the network operator, acting efficiently in accordance with good electricity industry practice, before the work or costs were able to be stopped or cancelled.
(5) The network operator must provide evidence to the user of the amount referred to in
clause A4.2(4).

6436 GOVERNMENT GAZETTE, WA 23 December 2005
Appendix 5 – Transitional – metering services
provided by the electricity networks
corporation

{See clause 6.3(3).}

Table 8 Metering Services and Charges

SERVICE SERVICE CHARGE2, 3, 4
LEVEL1

Area Area Area M5 Area N6
M5 N6

DATA PROVISION, DATA COLLECTION

1. Bi-monthly meter reading 2 2 P.O.A.3 P.O.A.3 then
then AA 4 AA 4
2. Monthly meter reading 2 2 P.O.A.3 P.O.A.3 then
then AA 4 AA 4
3. Off-cycle meter reading 3 5 $4.48 $19.69
4. Self meter reading 2 2 P.O.A.3 P.O.A.3 then
then AA 4 AA 4
5. Energy interval data up to 35 days – manually 5 10 P.O.A.3 P.O.A.3 then
collected then AA 4 AA 4
6. Energy interval data up to 35 days – remotely collected 2 2 P.O.A.3 P.O.A.3 then
(monthly) then AA 4 AA 4
7. Energy interval data up to 35 days – remotely collected 1 1 $5.00 $5.00
(daily)
8. Energy data (up to 12 months before the date of 2 2 P.O.A.3 P.O.A.3 then
request or part thereof) then AA 4 AA 4
9. Standing data provision 2 2 P.O.A.3 P.O.A.3 then
then AA 4 AA 4

10. Energy interval data produced by survey meter (excluding meter costs)

37

42

$349.47

(plus travel)2

11. Additional energy data (13 months plus) 2 2 P.O.A.3 P.O.A. 3
METER PROVISION

12. Establishment of network connection point 10 10 $47.56 $47.56
13. CT interval meter upgrade (includes meter cost) 3 5 $840.00 (plus travel)2
14. CT interval meter installation (includes meter cost) 3 5 $880.00 (plus travel)2
15. Direct interval meter installation three phase (includes 3 5 $640.00 (plus travel)2
meter cost)
16. Direct interval meter installation single phase (includes 3 5 $165.00 (plus travel)2
meter cost)
17. Direct meter change single phase (includes meter cost) 5 10 $105.00 (plus travel)2
18. Direct meter change three phase (includes meter cost) 5 10 $185.00 (plus travel)2

19. Direct interval meter change three phase (includes 5 10 $640.00 (plus travel)2
meter cost)

20. Direct interval meter change single phase (includes 5 10 $165.00 (plus travel)2
meter cost)

23 December 2005 GOVERNMENT GAZETTE, WA 6437

SERVICE SERVICE CHARGE2, 3, 4
LEVEL1

Area Area Area M5 Area N6
M5 N6

21. Direct meter de-energisation single phase and three 3 5 $35.00 (plus travel)2
phase

22. Direct meter energisation single phase and three 3 5 $35.00 (plus travel)2
phase

23. Meter investigation 5 10 $85.00
24. Communications link installation to existing compatible 5 10

$780.00 (plus travel)2
interval meter

25. Communications link installation concurrent with interval meter installation

3

5

$650.00

(plus travel)2
TECHNICAL SERVICES

26. Meter program development P.O.A.3 P.O.A.3

27.

Enablement of customer signal capabilities and signal maintenance (charge per day)

$0.60

$0.60

28.

Option to pay up front capital cost to retrospectively fit customer signal (excludes maintenance of customer signals)

$220.00

(plus travel)2

29.

Option to pay up front capital cost to enable customer signal when meter installed (excludes maintenance of customer signals)

$150.00

(plus travel)2

30. Maintenance of customer signals for items 28 and 29 5 10 $85.00/hr $85.00/hr
31. Meter test – laboratory (single Phase) 7 19 $268.50 N/A
32. Meter test – laboratory (three Phase) 7 19 $402.75 N/A
33. Meter test – on-site (single phase) 5 10 $268.83 (plus travel)2
34. Meter test – on-site (three phase) 5 10 $430.12 (plus travel)2
35. Meter audit – on-site (CT metering) $255.00 (plus travel)2
1 The service level is measured in business days.
2 Where the charge is shown as “(plus travel)” the metropolitan area charge applies plus a
travel time charge at the rate of $85 per hour. All travel commences from the Perth metropolitan area. Where air travel is involved the cost of the airfare and accommodation also applies.
3 The charge which may be imposed may not exceed the costs that would be incurred by a
network operator acting in good faith and in accordance with good electricity industry practice,
seeking to achieve the lowest sustainable costs of providing the service.
4 The charge is to be determined in accordance with the model access contract which forms
part of the access arrangement approved under the Access Code. If no separate charge is specified in the access arrangement, the charge is bundled into the reference tariffs specified in the access arrangement.
5 Area M is the metropolitan area.
6 Area N is the non-metropolitan area.

6438 GOVERNMENT GAZETTE, WA 23 December 2005

!200500243GG!

applicable, ”.

metering data agent’s metrology procedures”.

relevant document, its metering data agent”.

agent’s, ”.

agent”.

as applicable, ”.

as applicable, ”.

as applicable, ”.
as applicable, ”.
as applicable, ”.

as applicable, ”.
as required also a reference to Table 4 to Table 7.

agent’s”.

6334	GOVERNMENT GAZETTE, WA	23 December 2005
Approval by Minister

1.1	Commencement
1.2	Application
1.3	Definitions
1.4	Interpretation
1.5	Inconsistency with other enactments
1.6	Meaning of ‘publish’
1.7	How this Code applies to multiple users
1.8	Transitional – references to “electricity networks corporation” and “electricity retail corporation” before disaggregation

2.1	Code Objectives
2.2	Network operator must treat associates at arms-length

3.1	Meters must comply with metrology procedure and National Measurement Act
3.2	Accumulation meters
3.3	Interval meters
3.4	Ownership of meters and communications links
3.5	Requirements for a metering installation
3.6	When network operator may require facilities for remote meter reading
3.7	Requirements for equipment connected to a telecommunications network
3.8	Security of metering installations
3.9	Metering installation types and accuracy requirements
3.10	Programmable settings which affect resolution and accuracy of displayed or captured data
3.11	Reliability of metering installations
3.12	Metering installation design requirements
3.13	Requirements for check metering installations
3.14	Transitional – Metering installations commissioned prior to commencement of this Code
3.15	Application of this Division 3.3
3.16	Wholesale market metering installation requirements
3.17	No transfer under the Customer Transfer Code without interval meter (for Types 1 to 5)
3.18	Interval meter requirements (for Types 1 to 5) applicable to the Electricity Retail Corporation
3.19	Application of this Division 3.4
3.20	Network operator must provide enhanced technology features
3.21	Requirements for metering installations with enhanced technology features
3.22	Network operator must have license to metering software
3.23	Customer signals for load management must be isolated from meter
3.24	Application of this Code to pre-payment meters
3.25	Requirements for pre-payment meters
3.26	Disputes in relation to pre-payment meters
3.27	Prohibition on installing metering installations
3.28	Network operator may register a person to install metering installations
3.29	Network operator must publish and update a list of registered metering installation providers

4.1	The metering database – general
4.2	The metering database – the registry
4.3	Standing data items
4.4	Discrepancies between database and other data
4.5	Code participants must keep the registry accurate
4.6	Network operator must amend registry when notified of, or aware of, change or error
4.7	Network operator must give notice of changes to standing data
4.8	Ownership, security and rights of access to data
4.9	Period for which energy data must be retained

5.1	Network operator to use reasonable endeavours to provide access to metering services
5.2	Unwritten service level agreement adopts model service level agreement
5.3	Network operator must read meters
5.4	Network operator must do at least one meter reading that generates an actual value per year
5.5	Charges for provision of data
5.6	Network operator must provide energy data after meter reading
5.7	Network operator must provide replacement energy data
5.8	Network operator must provide data for user’s Code of Conduct obligations
5.9	Network operator must provide standing data to users
5.10	Network operator must provide standing data to retailer
5.11	Network operator must provide standing data to incoming retailer
5.12	Current user may request energy data
5.13	Current user may request standing data
5.14	Current user may request bulk standing data
5.15	Energy data must be accompanied by meter reading date
5.16	User must provide energy data to network operator
5.17	User must provide standing data and energy data to user’s customers
5.18	User must notify network operator of change to energisation status
5.19	User must provide customer information
5.20	Energy data verification requests
5.21	Test and audit requests
5.22	Energy data – validation, substitution and estimation
5.23	Deemed actual values
5.24	Replacement of energy data with better data
5.25	Estimation and processing must maintain data quality
5.26	Network operator may correct for losses between metering point and associated connection point
5.27	Network operator may request customer details
5.28	Network operator may elect for electricity networks corporation to be metering data agent
5.29	Consequences of election
5.30	Metering data agency agreement
5.31	Ensuring that the electing network operator’s metering installations comply with this Code
5.32	Metering data agent is not an agent
5.33	Metering data agent is not a service provider
5.34	Electing network operator to reimburse the costs of the electricity networks corporation

6.1	Compliance with documents
6.2	Network operator must establish documents
6.3	Transitional – Electricity networks corporation’s initial documents
6.4	Transitional – Communications before communication rules approved
6.5	Requirements for all documents
6.6	Requirements for model service level agreement
6.7	Requirements for communication rules
6.8	Requirements for a metrology procedure
6.9	Network operator may establish a registration process
6.10	Application of this Division 6.2 approval procedure
6.11	Consultation with Code participants
6.12	Authority may establish a Metering Advisory Committee
6.13	Authority may approve a document or specify amendments
6.14	Requirements for approval by Authority
6.15	“Code objective” from Access Code to be taken into account
6.16	Network operator may submit an amended document
6.17	Authority drafts its own documents
6.18	Publication of approved document
6.19	Approved document takes effect
6.20	Review and amendment of network operator’s documents

7.1	Requirements for valid notice
7.2	Code participants
7.3	Receipt
7.4	Confidential Information
7.5	Confidentiality Obligations
7.6	Permitted Disclosure

8.1	Dispute resolution procedures
8.2	Referral of disputes to the Authority
8.3	Informality and expedition
8.4	Authority may determine own procedures
8.5	Powers of Authority
8.6	Timing of dispute resolution
8.7	Written determination
8.8	Dispute resolution to be held in Perth
8.9	Authority’s determination and orders are binding
8.10	Costs of the Authority
8.11	Referral to the Authority does not affect the obligations of the parties

A2.1	Purpose
A2.2	Validation within the registration process for metering installations Type 1 – 5
A2.3	Validation within the registration process for installations Type 6
A2.4	Validation within the registration process for Type 7 connection points
A2.5	Validation of energy data from Type 1 to Type 5 metering installations with check metering
A2.6	Validation of energy data from Type 1 to Type 5 metering installations with partial check metering
A2.7	Validation of energy data from Type 1 to Type 5 metering installations with no check metering
A2.8	Validation of energy data from Type 6 metering installations
A2.9	Validation of energy data for Type 7 connection points
A2.10	Validation within the meter reading process for Type 5 and Type 6 metering installations

A3.1	Purpose
A3.2	Data substitution and estimation rules for Type 1 to Type 5 metering installations
A3.3	Data substitution and estimation methods for Type 1 to Type 5 metering installations
A3.4	Data substitution and estimation rules for Type 6 metering installations
A3.5	Data substitution and estimation methods for Type 6 metering installations
A3.6	Substitution and estimation rules for Type 7 connection points
A3.7	Data substitution and estimation for Type 7 connection points

A4.1	Request for metering services
A4.2	Request for cancellation of a metering service order

•	consistent with the Electricity Networks Access Code 2004, the Electricity Industry (Wholesale Electricity Market) Regulations 2004, and the Electricity Industry Customer Transfer Code 2004; and
•	where appropriate given conditions prevailing in Western Australia, consistent with the National Electricity Rules.

(a)	Provision, ownership, installation and maintenance of meters and metering installations; (Part 3)
(b)	Accuracy and specification of metering installations; (Part 3)
(c)	Revenue metering installations and check metering installations used for the measurement of active energy and where appropriate, reactive energy; (Part 3)
(d)	The metering database, including the registry requirements; (Part 4)
(e)	Provision of and charges for metering services provided by the network operator; (Part 5)
(f)	Collection, processing and provision of energy data and standing data; (Part 5)
(g)	Security of, ownership and rights of access to energy data and standing data; (Part 5)
(h)	Documents under this Code including model service level agreements and communication rules for the transfer of energy data and standing data to the relevant parties; (Part 6) and

23 December 2005	GOVERNMENT GAZETTE, WA	6339
Part 1 – Preliminary

(2)	Despite clause 1.1(1), Part 3 (other than clauses 3.14, 3.15, 3.16(1) to 3.16(3), 3.17 and 3.18 which commence under clause 1.1(1)) and Part 8 of this Code and Appendix 1 to this Code come into operation on 1 March 2006.
(3)	Despite clause 1.1(1), Part 4 and Part 5 of this Code and Appendix 2 to Appendix 4 to this Code come into operation on 1 July 2006.

1.3	Definitions
In this Code, unless the contrary intention is appears: “access arrangement” has the meaning given to it in the Access Code.

•	a director or secretary of the body corporate; and
•	a related body corporate of the body corporate; and
•	another body corporate that can control or influence the composition of the board or the conduct of the affairs of a body corporate.}

(a)	if the data logger is internal to the device containing the measurement elements — between the data logger and the telecommunications network; and
(b)	if the data logger is external to the device containing the measurement elements but is located at the same site — between the meter and the data logger and between the data logger and the telecommunications network; and
(c)	if the data logger is not located at the same site as the device containing the measurement elements — between the meter and the telecommunications network.
{Note: Clause 3.7 specifies the minimum requirements for communications devices connected to a telecommunications network.}

(a)	be specified in a list published under clause 6.6; or
(b)	be determined by applying the reading day number specified in a list published under clause 6.6.}

(a)	in connection with a notice (including matters related to a notice such as an address), means (subject to the communication rules) a communication of information by means of guided or unguided electromagnetic energy, or both, by way of packet transfer between and within computer networks using the TCP/IP or other widely-accepted protocol for packet transfer; and
(b)	in connection with a meter, means the transfer of information into or out of the meter by way of a telecommunications network or pulsing signals or other widely accepted communications protocols used for the transfer of data between computerised devices.

(a)	for a metering point, the amount of electrical energy transferred out of a network at the metering point at a specified time or across a specified period; and
(b)	for a connection point, the aggregate of such loads across all metering points for the connection point.

(a)	an electronic signal; and
(b)	a mechanically recorded electrical measurement.

(a)	for a connection point of Type 1 to Type 6 — a point at which a revenue meter measures electricity production or consumption for the connection point; and
(b)	for a connection point of Type 7 — the connection point.
{Note: A metering point for a revenue metering installation is to be located as close as possible to the connection point: clause 3.5(4).}

(a)	the provision, installation, operation and maintenance of metering equipment; and
(b)	the obtaining, provision, storage and processing of data; and
(c)	services ancillary to the services listed in paragraphs (a) and (b) of this definition.

(a)	the region described in the Third Schedule to the Metropolitan Region Town Planning Scheme Act 1959; and
(b)	the local government district of Mandurah; and
(c)	the local government district of Murray.
(d)	the townsite of Albany, in the local government district of City of Albany; and
(e)	the area constituted by the townsite of Bunbury, in the local government district of City of Bunbury; and
(f)	the area constituted by the townsite of Geraldton, in the local government district of City of Geraldton; and
(g)	the area constituted by the townsites of Kalgoorlie and Boulder, in the local government district of City of Kalgoorlie-Boulder; and
(h)	the area constituted by the townsite of Karratha, in the local government district of Shire of Ashburton; and

(a)	A reference in this Code to an instrument or a provision of an instrument includes an amendment or supplement to, or replacement or novation of, the instrument or provision; and
(b)	A reference in this Code to a person includes the person’s executors, administrators, successors, substitutes and permitted assigns; and
(c)	Where a word or expression is given a particular meaning, other parts of speech and grammatical forms of that word or expression have a corresponding meaning; and
(d)	Where italic typeface has been applied to some words and expressions in this Code, it is solely to indicate that those words or expressions may be defined in clause 1.3 or elsewhere, and in interpreting this Code the fact that italic typeface has or has not been applied to a word or

(g)	footnotes form part of this Code and have legal effect under clause 5.29(b) and 5.30(3); and
(h)	“including” and similar expressions are not words of limitation in this Code; and

(2)	To the extent that this Code and the National Measurement Act are inconsistent, this Code does not operate to the extent of the inconsistency.
(3)	To the extent that this Code and the Electricity Act 1945 or any enactment made under the Electricity Act 1945 are inconsistent, this Code does not operate to the extent of the inconsistency.

(4)	To the extent that this Code and the Energy Operators (Powers) Act 1979 or any enactment made under the Energy Operators (Powers) Act 1979 are inconsistent, this Code does not operate to the extent of the inconsistency.
(5)	To the extent that this Code and the Code of Conduct are inconsistent, this Code does not operate to the extent of the inconsistency.
(6)	To the extent that this Code and a provision of Part 6 of, or Schedules 5 or 6 to, the Electricity Corporation Act 1994 or any enactment made under Part 6 of, or Schedules 5 or 6 to, the Electricity Corporation Act 1994 are inconsistent, this Code does not operate to the extent of the inconsistency.