WA Distribution Connections Manual

Western Australian Distribution Connections Manual

Document ControlEndorsement/Approvals

NameApproved by Brett Hovingh

TitleManager Asset Strategy & Capability Horizon Power Branch Manager Standards, Policy & Data Quality Western Power

Signature

Approved by

Gavin Forrest

Record of revisions This document contains multiple formatting sections. When it is updated please ensure all section headers and footers have also been updated with correct version numbers and dates.

Revision no.Initial

DateJune 2010

DMS Version7159802 v1

Revised byR Hale

DescriptionThe Distribution Connection Manual supersedes the Transitional Connection Manual. Various Amendments. Refer to the WADCM Appendices.

Version 2

February 2011

7159802 v2

R Hale

Documents referenced in this document

DMS#

Title of document Refer to Section 1

Other documents that reference this document

DMS#

Title of document Refer to Section 1

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Stakeholders In the process of document update, the following Internal and External Stakeholders must be consulted: Internal Sections Horizon Power / Western Power Connections (Energisation) Section Distribution Design Engineering Branch Customer Solutions Sections Distribution Metro Operations Branch Distribution Country Branch Metering and Inspections Sections Network Operations Control Centre Power Training Services Section Primary Response Teams Safety Compliance and Investigations Section Operational Technical Excellence Branch External Organisations Association of Consulting Engineers Australia. Australian Institute of Architects Energy Safety Housing Industry Association Master Builders Association National Electrical Communications Association National Electrical Switchboard Manufacturers Synergy WorkSafe

Notification list When this document is updated, the following positions must be notified of any authorised change: Position/title Stakeholder Reference Group Registered Documentation Subscribers Stakeholders Copyright 2010, Electricity Networks Corporation trading as Western Power and Regional Power Corporation trading as Horizon Power.

Use of the material in this Western Australian Distribution Connections Manual without the permission of the copyright owners, is prohibited.

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FOREWORD Welcome to this first edition of the Distribution Connections Manual. The intended purpose of this Manual is to provide a comprehensive single point of reference for industry and the community for an electrical connection of a customers installation to the distribution network of: Western Powers South West Interconnected System (SWIS): Horizon Powers North West Interconnected System (NWIS); Horizons Powers Regional Non-Interconnected Systems (RNIS).

Western Power and Horizon Power recognised that a consolidated Manual was needed to provide clear connection guidelines in a format and language familiar to the electrical consulting and contracting industry, builders, architects and consumers. The Manual is intended to: Provide the necessary information to enable users to comply with statutory requirements and obligations; Incorporate commonly understood and universally accepted language; Consolidate all of the connection reference material into a single document; Provide a format that is easily accessible for all users; Involve and gain industry and community support.

The Manual has been constructed using both technical and non-technical Sections including diagrams and flow charts to aid the reader in achieving the desired connection outcome. This edition supersedes the Transitional Connections Manual which contained an abridged version of Western Powers connection requirements previously published in the WAER. Western Power and Horizon Power would like to acknowledge the valuable support and contribution made during the development of this Manual by officers and personnel from both Network Operators and industry groups including Association of Consulting Engineers Australia, Australian Institute of Architects, National Electrical Switchboard Manufacturers Association, Energy Safety, Housing Industry Association, Master Builders Association, National Electrical Communications Association, and Synergy. The information in this publication has been provided as a useful guide for users. The authors hope you find it easy to read and understand. Your feedback on any aspect of the Manual is welcome and valued. We look forward to your support and involvement in the development of future editions of this document.

Mark de Laeter

Ziggy Wilk

General Manager Networks Western Power

General Manager Operations Horizon Power

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Manual Quick Reference Guide The intent of this Manual is to provide relevant and related information associated with a customers residential or business electrical connection to a Network Operators distribution network. It is understood that not all users of this document will have an electrical background therefore the Manual has been constructed in such a way so as assist and guide both technical and non technical readers to those Sections of specific or relevant interest. Although the below groupings have been provided to assist the reader, all Sections of this Manual need to addressed to obtain a network connection. For all Manual Users Sections 1 to 3 contain definitions, document management processes and relevant legislation for the community and the industry. Architects, Builders, Customers and Designers. Sections 4,5,6,7,9, and part of Section 11, provide specific and detailed information on electrical safety together with guidance for readers on how they will be charged, metering (location, tariffs etc), what the connection will look like and what needs to be done by the various parties to achieve the connection. Electrical Consultants, Contractors, Designers and Workers Sections 8,10,11,12,13,14 and 15 contain specific technical content describing the technical requirements that must be satisfied before a Network Operator will allow the connection to their distribution network. Additional information is also provided on the ongoing customer obligations to keep and maintenance connection. Hyperlinks Section 1 Definitions and Abbreviations- contains an explanation of commonly used terms, phases and references contained throughout the Manual. Section 2 Document Management- provides details on the date of application for the Manual, together with instructions and to how to register as a user and subscriber or on how to provide feed back on the content. Section 3 Scope and Legislation- outlines how and where the Manual is to be used inclusive of an overview of the various pieces of State and Commonwealth Legislation that underpins both network and industry activity. Section 4 Roles and Responsibilities- describes the regulatory, contractual and practical roles that must exist and fulfilled by each party to ensure the effective connection, supply, distribution and consumption of electricity throughout the electricity supply chain. Section 5 Contact Details- is a useful summary and reference point within the Manual that provides regular contact details for both Horizon Power and Western Power. Section 6 General Rules- contains information on general safety, clearances from overhead and underground electrical cables, site preparation, easements, network equipment and industry connections programs. Section 7 Connection & Disconnection Applications- this part of the Manual is deigned to provide guidance on the applicable processes when seeking either a new or upgraded connection or the removal of an existing connection to the network. The Section covers both low and high voltage connections as well as renewable energy connections including details and links to the various application forms.DMS 7159802 v2 (Word) Page 5 of 318


Section 8 Notices and Notifications- explains the statuary obligations and notices used by the electrical industry prior to and on completion of electrical work. These notices form the basis of the regulatory system and the foundation of the industry safety and compliance structure. Section 9 Charging Policies- includes guides to the applicable Network Operator polices on fees and charges. It is not a definitive source of information but does provide appropriate links to specific areas of their operations. Section 10 Supply Characteristics- summarises the operation of both Horizon and Western Powers distribution networks including information on power quality, system voltages, fault levels, harmonics, flicker and customer related information such as sensitive supplies, disturbing loads or compensation payments. Section 11 Metering- is intended to provide both industry and the community with information on the various metering systems on offer to customers. This Section includes both informative and technical information on metering types, locations, connection methods for direct connected, current transformer, remote reading and renewable systems. Section 12 Low Voltage Distribution Supply- specifies the requirements for the connection of a customers low voltage electrical installation via either an overhead service cable or underground consumers mains cable. Includes detail on connection policy; number, type and location of a connection equipment; poles; pillars; pits; temporary and builders supplies; and unmetered connections. Section 13 High Voltage Distribution Supply- details the requirements for the connection of a customers high voltage electrical installation including available voltages, submission processes, connection methods and arrangements, inspection, testing, switching, access and maintenance. Section 14 Sub Stations- describes the requirements and customer responsibilities for installing new substations or for upgrading an existing substation installation. Included is information on substation types, locations and site preparation, enclosures, fire ratings and screens. Section 15 Embedded Generation- or more commonly known as standby, emergency or renewable generation systems, provides detailed technical information on the connection of engine driven generators, renewable energy systems, inverters, classifications, approvals, operational parameters, safety requirements, switching, labelling and customer responsibilities. Note.

It is the hope of participating Network Operators that this Manual assists both customers and industry gain a better understanding of the roles, responsibilities, processes and minimum technical specifications required to facilitate and maintain a safe, reliable and efficient customer connection.

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Table of Contents1 1.1 1.2 1.3 1.4 1.4.1 1.4.2 1.4.3 1.4.4 1.4.5 2 2.1 2.2 2.3 2.4 2.5 2.5.1 2.5.2 2.5.2.1 2.5.2.2 2.5.3 2.6 2.6.1 2.6.2 2.7 2.7.1 2.7.2 2.7.3 2.7.4 2.7.5 2.7.6 2.8 2.9 3 3.1 Definitions and Abbreviations .................................................................35 Definition (Origin) Key ............................................................................35 Definitions...............................................................................................35 Abbreviations..........................................................................................41 References .............................................................................................43 Acts and Regulations..............................................................................43 General Codes and Publications ............................................................43 Documents Published By Horizon Power...............................................44 Documents Published by Western Power ..............................................44 Documents Published by Standards Australia .......................................45 Document Management .........................................................................47 Disclaimer...............................................................................................47 Manual Ownership and Administration...................................................47 Copyright ................................................................................................47 Application ..............................................................................................47 Publication ..............................................................................................47 Application Date .....................................................................................47 Printing and Updates ..............................................................................48 Horizon Power ........................................................................................48 Western Power .......................................................................................48 On-Line Subscription ..............................................................................48 Enquires and Contacts ...........................................................................48 Horizon Power ........................................................................................48 Western Power .......................................................................................48 Review and Updates ..............................................................................49 Seeking Assistance with These Rules....................................................50 Consideration and Assessment..............................................................50 Website for (FAQs) ................................................................................50 Amendments and Consultation ..............................................................50 Approval and Consolidation....................................................................50 Publication and Notification of Changes.................................................51 Amendment Information .........................................................................51 Stakeholder Reference Group (SRG).....................................................51 Introduction.............................................................................................53 Purpose ..................................................................................................53

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3.2 3.3 3.4 3.5 3.5.1 3.5.2 3.6 3.6.1 3.6.2 3.6.2.1 3.6.2.2 3.6.2.3 3.6.3 3.6.3.1 3.6.3.2 3.6.3.3 3.6.3.4 3.6.4 3.6.4.1 3.6.4.2 3.6.5 3.6.5.1 3.6.6 3.6.7 3.7 3.8 3.9 3.10 3.11 4 4.1 4.2 4.3 4.3.1 4.3.2 4.3.3 4.3.4

Scope of These Rules ............................................................................53 Users ......................................................................................................53 Compliance with These Rules ................................................................54 Innovation and Variations .......................................................................54 Horizon Power ........................................................................................54 Western Power .......................................................................................54 Compliance with Acts and Regulations ..................................................54 Electricity Corporations Act 2005 ...........................................................55 Electricity Act 1945 .................................................................................55 Electricity (Licensing) Regulations 1991.................................................55 Electricity (Supply Standards & System Safety) Regulations 2001 ........56 Electricity Regulations 1947 ...................................................................56 Electricity Industry Act 2004 ...................................................................56 Code of Conduct for the Supply of Electricity to Small Use Customers .57 Network Operators Customer Service Charter ......................................57 Electricity Industry (Obligation to Connect) Regulations 2005 ...............57 Electricity Industry Metering Code 2005.................................................58 Occupational Safety and Health Act 1984..............................................58 Occupational Safety and Health Regulations 1996 ................................58 National Standard for Construction Work ...............................................58 Mines Safety and Inspection Act 1994 ...................................................59 Mines Safety and Inspection Regulations 1995 .....................................59 Energy Operators (Powers) Act 1979....................................................59 The Energy Coordination Act 1994 ........................................................59 Necessity for Employing a Licensed Person ..........................................60 Offences .................................................................................................60 Testing....................................................................................................60 Access ....................................................................................................60 Inspection of Customers Premises ........................................................61 Roles and Responsibilities .....................................................................63 Energy Reform (Disaggregation)............................................................63 Regulatory, Contractual and Practical Relationships .............................63 Electricity Supply Chain..........................................................................64 Generators..............................................................................................64 Network Operators .................................................................................64 Retailers .................................................................................................64 Customers ..............................................................................................65

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4.3.5 4.3.6 4.3.7 4.3.8 4.3.9 4.3.10 4.3.11 4.4 4.4.1 4.4.2 4.4.2.1 4.4.2.2 4.5 4.5.1 4.5.2 4.5.3 4.5.4 5 5.1 5.1.1 5.1.2 5.1.3 5.1.4 5.1.5 5.2 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 5.2.7 5.3 5.3.1 5.3.2 5.3.3 5.3.4

Customers Agent / Representative........................................................65 Electrical Contractors .............................................................................65 Energy Safety (Department of Commerce) ............................................66 WorkSafe (Department of Commerce) ...................................................66 Economic Regulation Authority (ERA)....................................................66 Office of Energy......................................................................................66 The Independent Market Operator (IMO) ...............................................67 Contestable Accounts.............................................................................67 NWIS or RNIS Distribution Areas Customers (Horizon Power)..............67 SWIS Distribution Areas Customers (Western Power)...........................67 Non-Contestable Accounts.....................................................................67 Contestable Accounts.............................................................................67 Dispute Resolution .................................................................................68 Horizon Power ........................................................................................68 Western Power .......................................................................................68 Unresolved Issues ..................................................................................68 Distribution Connection Resolution Pathway..........................................68 Contact Details .......................................................................................71 Horizon Power Contacts.........................................................................71 Head Office.............................................................................................71 Bentley Administration Centre ................................................................71 Regional Offices .....................................................................................71 Complaints..............................................................................................71 Feedback................................................................................................71 Western Power Country and Metropolitan Contacts ..............................72 Accessibility ............................................................................................72 Postal Address .......................................................................................72 Email Address ........................................................................................72 Head Office Location ..............................................................................72 How to Report a Problem .......................................................................72 Calls from Mobile Phones.......................................................................73 Network Connections .............................................................................73 General Contacts....................................................................................73 Dial Before You Dig ................................................................................73 Electricity Retailers .................................................................................73 Electrical Industry Licensing ...................................................................73 Energy Ombudsman...............................................................................73

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6 6.1 6.2 6.2.1 6.2.2 6.2.2.1 6.2.2.2 6.3 6.3.1 6.3.2 6.3.2.1 6.4 6.4.1 6.4.2 6.4.3 6.5 6.5.1 6.5.2 6.5.3 6.5.4 6.6 6.7 6.7.1 6.8 6.8.1 6.8.1.1 6.8.1.2 6.8.1.3 6.8.2 6.8.3 6.8.4 6.9 6.9.1 6.9.2 6.9.3 6.10 6.11

General Rules.........................................................................................75 Introduction.............................................................................................75 Safety Policy Statement .........................................................................75 Safety and Operational Procedures .......................................................75 Operational Clearances..........................................................................75 Horizon Power Safety Guidelines...........................................................75 Western Power Safety Guidelines..........................................................76 Working Near Network Infrastructure .....................................................76 Horizon Power Requirements.................................................................76 Western Power Requirements................................................................76 Pathway for Working near Western Power Infrastructure ......................77 Underground (Excavation)......................................................................78 The 4Ps ..................................................................................................78 Horizon Power Guidelines ......................................................................78 Western Power Guidelines .....................................................................78 Overhead Powerlines .............................................................................79 Horizon Power Guidelines ......................................................................79 Western Power Guidelines .....................................................................79 Building and Structural Clearances near Power lines ............................79 Vegetation ..............................................................................................80 Road Reserve Allocation ........................................................................80 Private Property......................................................................................81 Surveying, Levels and Pegs ...................................................................81 Easements..............................................................................................81 Easement Types.....................................................................................82 Section 167 Easement (Previously Section 27A Easement)..................82 Section 136C Easement.........................................................................82 Section 144 Crown Easement ................................................................82 Assistance with Easements....................................................................82 Strata Schemes ......................................................................................83 Dispute Negotiation and Mediation.........................................................83 Cable Ducts ............................................................................................84 Materials .................................................................................................84 Installation of Ducts ................................................................................84 Supervision of Installation.......................................................................84 Removal and Reinstatement ..................................................................85 Existing Customers and Affected Parties ...............................................85

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6.12 6.12.1 6.12.1.1 6.12.2 6.13 6.13.1 6.13.2 6.13.2.1 6.13.2.2 6.14 6.14.1 6.14.2 6.15 6.15.1 6.15.2 6.16 6.17 6.17.1 6.17.2 6.18 6.18.1 6.18.2 6.19 6.19.1 6.19.2 6.20 6.20.1 6.20.2 6.20.3 6.20.4 6.20.5 6.21 6.21.1 6.22 6.22.1 7 7.1

Environmental and Heritage Requirements............................................86 Network Extension..................................................................................86 NWIS and RNIS..................................................................................86 Applicants Project ..................................................................................87 Equipment ..............................................................................................87 Distribution Design Catalogue (DDC).....................................................87 Western Power Equipment.....................................................................87 Non Standard Equipment ...................................................................87 Equipment Sold by Western Power ....................................................88 Artwork on Network Assets ....................................................................88 Horizon Power Equipment......................................................................88 Western Power Equipment.....................................................................88 Decorative Fixtures, Signs and Banners on Assets ...............................88 Horizon Power Equipment......................................................................89 Western Power Equipment.....................................................................89 Labelling .................................................................................................89 Locks ......................................................................................................89 Horizon Power Locks and Cylinders.......................................................89 Western Power Locks and Cylinders......................................................90 Industry Self Connection Programs........................................................90 Horizon Power Programs .......................................................................90 Western Power Programs ......................................................................90 Subdivisions ...........................................................................................90 Horizon Power UDS Requirements ........................................................91 Western Power UDS Requirements .......................................................91 Asbestos Products..................................................................................91 General...................................................................................................91 Safety Precautions .................................................................................91 Panels.....................................................................................................92 Asbestos Fibre Pillars.............................................................................92 Disposal..................................................................................................93 Horizon Power Section References........................................................93 Summary ................................................................................................93 Western Power Section References.......................................................94 Summary ................................................................................................94 Connection and Disconnection Applications ..........................................96 General...................................................................................................96

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7.2 7.3 7.4 7.5 7.5.1 7.5.2 7.5.3 7.5.4 7.5.5 7.6 7.6.1 7.7 7.7.1 7.7.1.1 7.7.1.2 7.7.2 7.7.2.1 7.7.3 7.7.3.1 7.7.3.2 7.7.4 7.7.4.1 7.7.5 7.7.5.1 7.8 7.8.1 7.8.1.1 7.8.1.2 7.8.2 7.8.2.1 7.8.2.2 7.9 7.9.1 7.9.2 7.10 7.10.1.1 7.10.1.2

Conditions of Supply...............................................................................96 Availability of Supply...............................................................................96 When to Contact the Network Operator .................................................96 Contract Administration ..........................................................................97 Appointment of Electrical Consultant/Contractor....................................97 Project Management ..............................................................................97 Timing and Scheduling ...........................................................................97 Warranty of Applicant Work....................................................................98 Documentation Requirements ................................................................98 Definition of Standard Supply .................................................................98 Horizon Power Systems .........................................................................98 Distribution Connection Applications ....................................................100 Residential............................................................................................100 Standard Residential Application Forms ..............................................100 Non-Standard Residential Application Forms.......................................100 Commercial and Industrial....................................................................100 Non-Standard Commercial Application Forms .....................................101 Country and Rural Connections ...........................................................101 Horizon Power Country and Rural Applications ...................................101 Western Power Country and Rural Applications ..................................101 Temporary Supplies .............................................................................101 Temporary Supply Applications............................................................102 Unmetered Supply................................................................................102 Unmetered Supply Application Forms ..................................................102 Embedded Generation Applications .....................................................102 Inverter Energy System Installations ....................................................102 Horizon Power Application Process .....................................................103 Western Power Application Process ....................................................103 General Embedded Generation Installations........................................103 Horizon Power Application Process .....................................................104 Western Power Application Process ....................................................104 Three Phase Supply Availability ...........................................................104 Horizon Power ......................................................................................104 Western Power .....................................................................................104 Transmission Connection Applications.................................................104 Horizon Power Application Process .................................................104 Western Power Application Process ................................................105

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7.11 7.11.1.1 7.11.1.2 7.12 7.12.1 7.12.2 7.12.3 7.12.3.1 7.12.3.2 7.12.3.3 7.12.3.4 7.12.4 7.13 7.14 7.15 7.16 7.17 7.18 7.19 7.20 7.21 7.21.1 7.21.2 7.22 7.22.1 7.22.2 7.22.3 7.22.4 8 8.1 8.1.1 8.1.2 8.1.3 8.1.4 8.1.5 8.2 8.2.1

Types of Connection methods..............................................................105 Underground Connection Arrangements ..........................................105 Overhead Connection Arrangements ...............................................107 Types of Disconnections Applications ..................................................108 Account Termination.............................................................................108 Disconnection Arrangements ...............................................................108 Temporary Disconnections...................................................................109 Disconnection Process .....................................................................109 Connection Process .........................................................................109 Connection .......................................................................................110 Missing Tags or Fault Notes .............................................................110 Demolition Disconnection .....................................................................111 Supply Upgrades ..................................................................................111 Conversion to Underground Power ......................................................112 Relocations...........................................................................................112 Subdivisions .........................................................................................113 Network and Equipment Locations.......................................................113 Application Processes for LV Distribution Connections........................113 Connection Process for a HV Supply ...................................................117 Application Processes for Inverter Energy Systems.............................119 Horizon Power Application Forms ........................................................121 General.................................................................................................121 Applications Forms ...............................................................................121 Western Power Application Forms .......................................................122 General.................................................................................................122 Applications Forms ...............................................................................122 Generator Connection ..........................................................................122 Processing Applications .......................................................................122 Notices and Notification of Electrical Work...........................................124 Statutory Notices ..................................................................................124 Notifiable Work .....................................................................................124 Preliminary Notice ................................................................................124 Completion Notice ................................................................................125 Certificate of Compliance (Electrical Safety Certificate) .......................125 Supplies of Notices...............................................................................125 Lodgement of Paper Notices ................................................................125 Connected to a Network .......................................................................125

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8.2.2 8.3 8.4 8.5 8.5.1 8.5.2 8.5.3 8.5.4 8.5.5 9 9.1 9.1.1 9.2 9.2.1 9.2.1.1 9.2.1.2 9.2.2 9.3 9.3.1 9.3.2 9.3.3 9.3.3.1 9.3.3.2 9.3.3.3 9.3.3.4 9.3.4 9.3.5 9.3.6 9.3.7 9.3.8 9.3.9 9.3.10 9.3.11 9.4 9.5 9.6 9.6.1

Not Connected to a Network ................................................................125 Western Power Electronic Ticket System E-TIC ..................................126 Installation Test Certificate ...................................................................126 Notices and Tags..................................................................................126 Inspectors Advice Note........................................................................126 Inspectors Order ..................................................................................126 Fault Note .............................................................................................127 Fault Service Call Form ........................................................................127 Temporary Disconnect Tag ..................................................................127 Charging Policies..................................................................................129 Introduction...........................................................................................129 Western Power .....................................................................................129 Network Fees .......................................................................................129 Design Fees .........................................................................................129 Horizon Power Design and Quotation ..................................................129 Western Power Design and Quotation .................................................130 Re-Quote Fees .....................................................................................130 Charging Polices ..................................................................................130 Subdivisions .........................................................................................131 Individual Customer (Standard Supply)................................................131 Individual Customer (Non Standard Supply & Non Primary Producer) 131 Augmentation Costs .............................................................................131 Network Access Charges .....................................................................131 Other Applicable Costs.........................................................................132 Headworks Charges .............................................................................132 Customers More Than 25 km from Zone Substation (Headworks Charge) 132 Non Urban Resident & Primary Production Customer .........................132 Overhead to Underground Conversions (Pole to Pillar) .......................134 Builders and Temporary Supplies ........................................................134 Network Relocations.............................................................................134 Unmetered Supplies .............................................................................135 Equipment Hire.....................................................................................135 Equipment Sale ....................................................................................135 Payment and Refunds ..........................................................................135 Charges and Conditions .......................................................................135 Horizon Power Section References......................................................136 Summary ..............................................................................................136Page 14 of 318

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9.7 9.7.1 10 10.1 10.1.1 10.1.2 10.2 10.3 10.3.1 10.3.2 10.4 10.5 10.5.1 10.5.2 10.5.3 10.6 10.6.1 10.6.2 10.6.3 10.7 10.8 10.8.1 10.8.2 10.8.3 10.9 10.9.1 10.9.2 10.9.3 10.9.4 10.9.5 10.9.6 10.9.7 10.10 10.10.1 10.10.2 10.10.3 10.10.3.1

Western Power Section References.....................................................136 Summary ..............................................................................................136 Supply Characteristics..........................................................................138 Introduction...........................................................................................138 Horizon Power Electricity Network .......................................................138 Western Power Electricity Network ......................................................138 Electricity Network ................................................................................138 Supply...................................................................................................138 Nominal Voltage ...................................................................................139 Nominal Frequency ..............................................................................139 Network Performance Parameters .......................................................139 Supply Loading.....................................................................................140 Obligations............................................................................................140 Maximum Demand ...............................................................................140 Non Compliance ...................................................................................141 Prospective Short Circuit Current .........................................................141 Horizon Power Fault Levels..................................................................141 Western Power Fault Levels.................................................................141 Western Power Fault Levels for Supplies > 800 Amps ........................142 Balanced Electrical Loads ....................................................................142 Power Factor ........................................................................................142 Horizon Power - Power Factor Limits ...................................................142 Western Power - Power Factor Limits ..................................................143 Ripple Control and Blocking Systems ..................................................143 Voltage Fluctuations .............................................................................143 Voltage Transients................................................................................144 Flicker ...................................................................................................144 Harmonics ............................................................................................145 Volt Drop...............................................................................................145 Neutral Voltage Rise.............................................................................145 Horizon Power Voltage Fluctuations Limits ..........................................146 Western Power Voltage Fluctuations Limits .........................................146 Supply Reliability ..................................................................................146 Planned Supply Interruptions ...............................................................146 Unplanned Supply Interruptions ...........................................................146 Emergency Response Generators .......................................................147 Horizon Power ..................................................................................147

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10.10.3.2 10.11 10.11.1 10.11.2 10.11.3 10.11.4 10.11.5 10.11.5.1 10.11.5.2 10.11.5.3 10.11.5.4 10.11.6 10.12 10.12.1 10.12.1.1 10.12.1.2 10.12.2 10.12.2.1 10.12.2.2 10.13 10.14 10.14.1 10.14.2 10.15 10.15.1 10.16 10.16.1 11 11.1 11.1.1 11.1.2 11.1.3 11.1.4 11.1.5 11.1.6 11.1.7 11.2

Western Power .................................................................................147 Customers Responsibilities .................................................................147 General.................................................................................................147 Using Equipment from Outside Australia..............................................147 Purchasing and Protection of Sensitive Equipment..............................147 Customer with Disturbing Loads...........................................................147 Starting Currents ..................................................................................148 Single Phase (240v) .........................................................................148 Three Phase (415v)..........................................................................148 Single Phase Appliances..................................................................148 Rural Single Phase Loads (240/480 volt) .........................................148 Insurance and Warranty .......................................................................149 Customer Supply Critical Installations ..................................................149 Residential Life Support Sensitive Customers .....................................149 Horizon Power Operated Networks ..................................................149 Western Power Operated Networks .................................................149 Commercial/Industrial Sensitive Customers.........................................150 Horizon Power Operated Networks ..................................................150 Western Power Operated Networks .................................................150 Manufacturers Responsibilities............................................................150 Claims Against a Network Operator .....................................................150 Horizon Power Claims ..........................................................................151 Western Power Claims .........................................................................151 Horizon Power Section References......................................................151 Summary ..............................................................................................151 Western Power Section References.....................................................152 Summary ..............................................................................................152 Metering................................................................................................154 General Metering Arrangements ..........................................................154 Metering Obligations.............................................................................154 Alterations and Additions......................................................................154 Maintenance, Repairs and Replacement .............................................154 Metering Installation .............................................................................155 Installing Metering Equipment ..............................................................155 Unauthorised Access to Metering Equipment ......................................155 Stakeholder Responsibilities ................................................................155 Tariffs and Metering..............................................................................156

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11.3 11.3.1 11.3.2 11.3.3 11.3.4 11.3.5 11.3.6 11.3.7 11.3.8 11.4 11.4.1 11.4.2 11.4.3 11.4.4 11.4.5 11.4.5.1 11.4.5.2 11.5 11.5.1 11.5.2 11.5.3 11.5.4 11.5.5 11.5.6 11.5.7 11.5.8 11.6 11.6.1 11.6.2 11.6.3 11.6.4 11.6.4.1 11.6.4.2 11.6.4.3 11.6.5 11.6.5.1 11.6.5.2

Meter Panels ........................................................................................156 Size.......................................................................................................156 Installation ............................................................................................156 Materials ...............................................................................................156 Wiring Holes .........................................................................................157 Wiring ...................................................................................................157 Panel Arrangements.............................................................................157 Fixing and Sealing ................................................................................158 Labelling ...............................................................................................158 Surrounds, Enclosures and mountings within Switchboards................158 General.................................................................................................158 Meter Surrounds...................................................................................158 Meter Enclosures..................................................................................159 Locks, Locking Systems and Viewing Windows...................................160 Labelling ...............................................................................................160 Single Dwelling .................................................................................160 Multiple dwelling ...............................................................................160 Meter Location......................................................................................160 General.................................................................................................160 Access Requirements...........................................................................162 Single Domestic Occupancy.................................................................162 Battle-axe Blocks..................................................................................162 Multiple Domestic/Commercial Occupancy ..........................................162 Rural and Semi-rural Installations ........................................................162 Remote Metering ..................................................................................162 Unsuitable locations .............................................................................163 Equipment ............................................................................................163 Prohibited Connections ........................................................................163 On Panels and Within Enclosures ........................................................163 Neutral and Active Links.......................................................................163 Meter Equipment Protection and Main Switches..................................163 Sole Use and District Substations ....................................................164 Additional Requirements for LV Connections...................................164 Additional Requirements for HV Connections ..................................164 Sealing of Meter Equipment .................................................................164 Horizon Power Reporting .................................................................165 Western Power Reporting ................................................................165

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11.7 11.8 11.8.1 11.8.2 11.8.3 11.8.4 11.9 11.9.1 11.9.2 11.9.3 11.9.4 11.9.5 11.10 11.10.1 11.10.2 11.11 11.11.1 11.11.2 11.11.3 11.11.4 11.11.5 11.11.6 11.11.7 11.12 11.12.1 11.12.2 11.12.3 11.12.4 11.12.5 11.12.6 11.13 11.13.1 11.13.2 11.13.3 11.13.4 11.13.5 11.13.6

Fault Current Levels for Metering Equipment.......................................165 Metering Systems and Arrangements ..................................................165 General Metering Types .......................................................................165 Horizon Power Metering Types ............................................................166 Western Power Metering Types ...........................................................166 Un-acceptable Metering Types.............................................................166 Direct Connected Metering...................................................................166 General.................................................................................................166 Meter Panels ........................................................................................167 Panel Wiring Configurations .................................................................167 Protection .............................................................................................168 Conversion of Subsidiary Meters to Master Meters..............................168 Time of Use Metering (SWIS Network Only) ........................................169 Existing Connections ............................................................................169 New Connections .................................................................................170 Multiple Master Metering ......................................................................170 General.................................................................................................170 Installation Requirements .....................................................................170 Panels...................................................................................................170 Master Meters.......................................................................................171 Wiring Configurations ...........................................................................171 Protection .............................................................................................173 Commercial Installations ......................................................................173 Distributed Master Metering .................................................................174 General.................................................................................................174 Installation Requirements .....................................................................174 Panels...................................................................................................174 Wiring Configurations ...........................................................................174 Protection .............................................................................................175 Converting to HV Meter Reading..........................................................175 LV Current Transformer (CT) Metering ................................................176 General.................................................................................................176 Sourcing of Materials............................................................................177 Meter Panels ........................................................................................177 Wiring Configurations ...........................................................................177 Protection .............................................................................................177 Current Transformers ...........................................................................179

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11.13.6.1 11.13.6.2 11.13.7 11.13.7.1 11.13.7.2 11.13.8 11.13.9 11.13.9.1 11.13.9.2 11.13.10 11.14 11.14.1 11.14.2 11.14.3 11.14.4 11.14.5 11.14.6 11.14.7 11.14.8 11.14.9 11.14.9.1 11.14.9.2 11.14.9.3 11.14.9.4 11.14.10 11.14.11 11.15 11.15.1 11.15.2 11.15.3 11.15.4 11.16 11.17 11.18 11.19 11.20 11.20.1

Current Transformer Mounting and Access......................................180 Current Transformer Removable Busbar Links Insert ......................180 Voltage Circuit Protection .....................................................................180 Fault Current Limiters .......................................................................181 Potential Fuses.................................................................................181 Safety ...................................................................................................181 Conversion of Direct Connected Meters to CT Metering......................181 Load Increase`..................................................................................181 No Load Increase .............................................................................182 Multiple Master CT Metered installations .........................................182 Automatic Meter Reading Systems ......................................................184 General.................................................................................................184 Installation Conditions ..........................................................................184 AMR Approval Process ........................................................................184 Installation ............................................................................................185 Ownership and Maintenance................................................................186 Installation Costs and Tariffs ................................................................186 Technical Specifications .......................................................................187 Summary of Horizon Power AMR Meter Types....................................187 Summary of Western Power AMR Meter Types...................................187 Standard ...........................................................................................187 Time of Use ......................................................................................187 Commercial ......................................................................................187 Additional Options ............................................................................187 File Format .......................................................................................187 Billing Data .......................................................................................188 HV Metering..........................................................................................188 High Voltage Metered Installations.......................................................188 Meter Panels ........................................................................................188 Communication Links for HV or Time of Use Metering ........................189 High Voltage Master Metering Systems ...............................................189 Metering for Inverter Energy Systems ..................................................189 Relocation of Existing Metering Point...................................................189 National Meter Identifier (NMI) .............................................................190 Meter Energisation ...............................................................................190 Meter Distribution .................................................................................190 Horizon Power Distribution Points ........................................................190

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11.20.2 11.20.3 11.21 11.21.1 11.22 11.22.1 11.22.2 12 12.1 12.2 12.2.1 12.2.1.1 12.2.1.2 12.2.1.3 12.2.2 12.2.3 12.2.4 12.2.4.1 12.2.4.2 12.2.4.3 12.2.5 12.2.6 12.2.7 12.2.8 12.3 12.3.1 12.3.2 12.3.3 12.4 12.4.1 12.4.2 12.4.3 12.4.4 12.4.5 12.4.6 12.4.6.1 12.4.6.2

Western Power Distribution Points .......................................................190 Emergency Conditions .........................................................................191 Horizon Power Section References......................................................191 Summary ..............................................................................................191 Western Power Section References.....................................................191 Summary ..............................................................................................191 List of Western Power Drawings ..........................................................192 Low Voltage Distribution Supply...........................................................194 Services................................................................................................194 Type of Connection ..............................................................................194 Network Operator Connection Policy ...................................................194 Horizon Power Policy .......................................................................194 Western Power Policy ......................................................................195 Lots Created During or After 2001....................................................195 Definition of City, Metropolitan Area or Town .......................................195 Connection of Services.........................................................................196 Number of Connections........................................................................196 Per Lot ..............................................................................................196 Per Service Pillar ..............................................................................196 Easements........................................................................................196 Overhead (Point of Supply) ..................................................................196 Underground (Point of Supply) .............................................................196 Location ................................................................................................197 Access ..................................................................................................197 Multiple Points of Supply ......................................................................197 Zone Diagram.......................................................................................198 Notification 70A ....................................................................................199 Customer Responsibilities ....................................................................199 Overhead Distribution Systems ............................................................200 General.................................................................................................200 Point of Attachment (PoA) ....................................................................200 PoA Definition.......................................................................................200 PoA Suitability ......................................................................................200 PoA Access ..........................................................................................201 PoA Location ........................................................................................201 Service Cables Crossing an Adjoining Property ...............................201 PoA Position on Buildings ................................................................202

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12.4.6.3 12.4.7 12.4.7.1 12.4.7.2 12.4.7.3 12.4.7.4 12.4.7.5 12.4.8 12.4.8.1 12.4.8.2 12.4.8.3 12.4.8.4 12.4.9 12.4.10 12.4.11 12.4.11.1 12.4.11.2 12.4.12 12.4.13 12.4.14 12.4.14.1 12.4.14.2 12.4.15 12.4.16 12.4.16.1 12.4.17 12.4.18 12.5 12.5.1 12.5.2 12.5.3 12.5.3.1 12.5.3.2 12.5.4 12.5.5 12.5.5.1 12.5.5.2

PoA on Poles....................................................................................203 Service Brackets...................................................................................203 Standard Service Bracket (Type 1, 2, & 3) .......................................204 Standard Raiser Bracket (Type 4) ....................................................204 Long Span Raiser Bracket (Type 5) .................................................204 ABC Universal Brackets ...................................................................205 Service Bracket Pin ..........................................................................205 Consumer Poles ...................................................................................206 Location ............................................................................................206 Construction .....................................................................................206 Horizon Power Requirements for Cyclonic Areas ............................206 Common Customer Poles ................................................................207 Equipment on Poles .............................................................................208 Corrosion Resistance ...........................................................................208 Point of Supply .....................................................................................208 Mains Connection Boxes..................................................................209 Boundary Fuses ...............................................................................209 Prevention of Conductor Insulation Damage........................................210 Spans and Clearances .........................................................................210 Disconnections, Repairs, Replacement, or Upgrades..........................210 Application ........................................................................................210 Compliance Costs ............................................................................211 Temporary Disconnections...................................................................211 Swimming Pools, Spas and Water Features ........................................211 Temporary Arrangement in the Event of a Failed Service................212 Existing Customers and Affected Parties .............................................212 Service Lead Replacement Program....................................................212 Underground Distribution Systems.......................................................212 General.................................................................................................212 Point of Supply (PoS) ...........................................................................213 Location ................................................................................................213 Horizon Power Policy .......................................................................214 Western Power Policy ......................................................................215 Inappropriate Point of Supply Connection ............................................215 Access ..................................................................................................215 Exclusion Zones ...............................................................................215 Excavation near Transformers .........................................................216

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12.5.5.3 12.5.6 12.5.6.1 12.5.6.2 12.5.7 12.5.7.1 12.5.7.2 12.6 12.6.1 12.6.2 12.6.2.1 12.6.3 12.6.4 12.6.4.1 12.6.4.2 12.6.4.3 12.6.4.4 12.6.5 12.6.6 12.6.7 12.6.7.1 12.6.7.2 12.6.7.3 12.6.7.4 12.6.7.5 12.6.8 12.6.9 12.6.9.1 12.6.9.2 12.6.9.3 12.6.9.4 12.6.9.5 12.6.9.6 12.6.9.7 12.6.9.8 12.6.10 12.6.11

Minimum Separation of Services ......................................................216 Pillar or Pit Not Installed .......................................................................216 Pillars in Overhead Areas.................................................................216 Pillar in New Underground Sub-divisions of 4 Lots or More .............216 Pillar or Pit Not Energised ....................................................................217 Pillars in Existing Overhead Areas ...................................................217 Pillars in New Underground Sub-divisions of 4 Lots or More ...........217 Consumer Mains ..................................................................................217 General.................................................................................................217 Consumer Main Sizes ..........................................................................217 Paralleling of Conductors .................................................................218 Voltage Drop.........................................................................................218 Acceptable Wiring Systems..................................................................218 Connected to Overhead Distribution System ...................................218 Existing Overhead installations ........................................................219 Connected to Underground Distribution System ..............................219 Connections within Substations or Switch-rooms.............................220 Location ................................................................................................220 Separation from Other Services ...........................................................220 Identification of Consumers Mains.......................................................220 Neutral Identification.........................................................................220 Active Identification...........................................................................221 Phase Identification ..........................................................................221 Underground locations .....................................................................221 Labelling ...........................................................................................221 Jointing Consumers Mains ...................................................................221 Termination of Consumers Mains.........................................................221 Balanced Loads................................................................................221 Single Phase Pillar Connection Formula ..........................................222 Connection Authorisation .................................................................222 Tunnel Terminations.........................................................................222 Parallel Terminations........................................................................223 Horizon Power Termination References...........................................223 Western Power Termination References..........................................223 Insufficient Pillar Terminals...............................................................223 Minimum Insulation Resistance............................................................224 Notification............................................................................................224

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12.7 12.7.1 12.8 12.8.1 12.8.2 12.9 12.10 12.11 12.11.1 12.11.2 12.11.3 12.11.4 12.11.4.1 12.11.4.2 12.11.4.3 12.11.4.4 12.11.5 12.11.6 12.11.7 12.12 12.12.1 12.13 12.13.1 13 13.1 13.2 13.3 13.4 13.4.1 13.4.1.1 13.4.1.2 13.5 13.5.1 13.5.1.1 13.5.1.2 13.5.2 13.5.2.1

Protection .............................................................................................224 Service Protection Devices...................................................................224 Cable Ducts and Conduits....................................................................224 Horizon Power Requirements...............................................................224 Western Power Requirements..............................................................224 Labelling ...............................................................................................224 Underground Conversion .....................................................................225 Special LV Supply Arrangements.........................................................225 Standby/Emergency Supply .................................................................225 Common Loads ....................................................................................225 Short Term Events................................................................................225 Builders Supplies..................................................................................225 Portable Builders Supply (Stub) Pole ..............................................226 Temporary, Independent Switchboards............................................226 Use of Permanent Installation ..........................................................227 Customer Pole and Switchboard in an Overhead Area ....................227 Un-metered Supplies............................................................................227 Horizon Power Requirements...............................................................228 Western Power Requirements..............................................................228 Horizon Power Section References......................................................228 Summary ..............................................................................................228 Western Power Section References.....................................................228 Summary ..............................................................................................228 High Voltage Distribution Supply ..........................................................230 Scope ...................................................................................................230 Responsibilities & Contractual Arrangements ......................................230 Customer Expenditure..........................................................................231 Supply Parameters ...............................................................................231 Individual Network Parameters.............................................................231 Horizon Power ..................................................................................231 Western Power .................................................................................231 Connection Arrangements....................................................................231 Control of Incoming HV Supply ............................................................232 Paralleling of HV Supplies ................................................................232 Back-Feeds ......................................................................................232 Power Factor Correction.......................................................................233 Fault Isolation ...................................................................................233

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13.5.2.2 13.5.2.3 13.5.2.4 13.6 13.7 13.7.1 13.7.2 13.7.3 13.7.3.1 13.7.3.2 13.7.4 13.7.4.1 13.7.4.2 13.7.4.3 13.7.4.4 13.7.4.5 13.7.4.6 13.7.4.7 13.7.4.8 13.7.4.9 13.7.4.10 13.7.4.11 13.7.4.12 13.7.4.13 13.7.4.14 13.7.4.15 13.7.4.16 13.7.4.17 13.7.4.18 13.8 13.9 13.9.1 13.9.2 13.9.3 13.9.4 13.9.5 13.9.6

Resonance Mitigation .......................................................................234 Switching Steps ................................................................................234 Labels ...............................................................................................234 Conversion from Low Voltage to High Voltage Supply.........................234 Installation Design and Submissions....................................................234 Preliminary Information.........................................................................234 Submission & Design (HV Submission) ...............................................235 Standard Format for Submission of a HV Proposal..............................235 Option One Electronic Submissions .................................................235 Option Two Hardcopy Submissions .................................................235 HV Submission outline .........................................................................236 Single Line Diagram .........................................................................236 Load Details......................................................................................236 Protection and Control of Incoming Supplies ...................................236 Protection Devices Switch-Fuse Units..............................................237 Protection Devices Circuit Breaker Units..........................................237 Next Line of Protection .....................................................................237 Voltage Transformers .......................................................................238 Current Transformers .......................................................................238 Underground Cables ........................................................................238 Transformers ....................................................................................239 Generators........................................................................................239 High Voltage Motors .........................................................................239 Earthing System ...............................................................................240 Operational Procedures....................................................................240 Commissioning of Protective Device ................................................240 Installation Commissioning and Supply Availability ..........................240 Site Plan ...........................................................................................240 Conforming Technical Standards .....................................................240 Applications and Connection Process ..................................................240 Equipment ............................................................................................241 Equipment Requirements .....................................................................241 Substation Installation Requirements ...................................................241 Main Switch or Switches.......................................................................241 Circuit Breakers ....................................................................................242 Protection Settings ...............................................................................242 Cabling .................................................................................................242

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13.9.6.1 13.9.6.2 13.9.6.3 13.9.7 13.9.8 13.10 13.11 13.12 13.12.1 13.12.2 13.12.3 13.12.4 13.12.5 13.12.6 13.12.6.1 13.12.6.2 13.12.7 13.13 13.14 14 14.1 14.1.1 14.1.2 14.2 14.2.1 14.2.2 14.2.3 14.3 14.3.1 14.3.2 14.3.3 14.3.4 14.3.4.1 14.3.4.2 14.3.4.3 14.4 14.4.1

Underground.....................................................................................242 Overhead lines .................................................................................242 As Constructed Drawings .................................................................243 Earthing Systems .................................................................................243 High Voltage Metering ..........................................................................243 Electrical Installations on Public Land ..................................................243 Inspection, Testing and Commissioning...............................................243 Safety ...................................................................................................244 HV Operation Manuals & Safety Management Plan ............................244 Access ..................................................................................................244 Operating Equipment............................................................................245 Operational Diagram ............................................................................245 Customer Switching Agreement ...........................................................245 High Voltage Switching.........................................................................245 Horizon Power ..................................................................................246 Western Power .................................................................................246 Safety Signs .........................................................................................246 Final Connection Requirements ...........................................................246 Maintenance .........................................................................................247 Substation Installation Requirements ...................................................249 General Supply Requirements .............................................................249 Horizon Power Requirements...............................................................249 Western Power Requirements..............................................................249 Substation Types..................................................................................249 District Substation.................................................................................249 Sole Use Substation .............................................................................249 Customer Owned Substation................................................................250 Substation Arrangements .....................................................................250 Modular Package Substation (MPS) ....................................................250 Non Modular Package Substation ........................................................251 Choice of MPS or Non MPS Arrangements .........................................251 Customer-Owned Substations..............................................................251 HV Indoor Ground Mounted Switchgear...........................................252 HV Outdoor Ground Mounted Switchgear........................................253 HV Outdoor Aerial Mounted Switchgear...........................................253 Common installation Conditions for Substations ..................................254 Application ............................................................................................254

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14.4.2 14.4.2.1 14.4.3 14.4.4 14.4.4.1 14.4.4.2 14.4.4.3 14.4.4.4 14.4.5 14.4.6 14.4.6.1 14.4.6.2 14.4.7 14.4.7.1 14.4.7.2 14.4.7.3 14.4.8 14.4.9 14.4.9.1 14.4.9.2 14.4.10 14.5 14.5.1 14.5.2 14.5.3 14.5.4 14.6 14.6.1 14.6.2 14.6.3 14.6.3.1 14.6.3.2 14.6.4 14.6.5 14.6.6 14.6.7 14.6.8

Substation Enclosures..........................................................................254 Fire Hydrant Installations..................................................................254 Site Requirements and Preparation .....................................................255 Access ..................................................................................................256 Site ...................................................................................................256 Gatic Cover Access ..........................................................................256 Equipment ........................................................................................256 Personnel .........................................................................................256 Sizing of Transformers .........................................................................256 Point of Supply and Consumer Mains ..................................................257 District Substations...........................................................................257 Sole Use Substations .......................................................................257 Earthing ................................................................................................257 General Requirements .....................................................................258 System Testing and Commissioning ................................................258 Metallic Screen Fencing ...................................................................258 Vegetation Screens ..............................................................................259 Metering................................................................................................259 Low Voltage Metering.......................................................................259 High Voltage Metering ......................................................................259 Requirement for a Contiguous Switchboard.........................................259 Conditions Non Fire Rated Substation Enclosures ..............................260 Application ............................................................................................260 Site Requirements and Preparation .....................................................260 Earthing ................................................................................................260 Screening .............................................................................................260 Conditions for Fire Rated Substation Enclosures.................................260 Application ............................................................................................260 General Construction Requirements ....................................................261 Earthing ................................................................................................261 District and Sole Use Substations ....................................................261 Customer-owned Substations ..........................................................262 Fire Alarms and Extinguishing Systems ...............................................262 Oil Containment....................................................................................262 Doors and Locks...................................................................................263 Ventilation.............................................................................................263 Trenches, Ducts and other Penetrations ..............................................264

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Western Australian Distri