Power Networks Design and Construction Guidelines
These Guidelines form the basis of Power and Water accreditation of consulting engineers and contractors. Such accreditation is mandatory from 1 January 2004.
The Guidelines are organised into 10 sections covering general and specific topics. Accreditation is on the basis of individual sections.
Where any variations to the Guidelines are proposed, application must be made in writing to:
Manager Network Engineering
PO Box 37471
Winnellie NT 0821
Nothing in these Guidelines is intended to be applicable to parts of a customer’s installation. However, where permitted by the Wiring Rules, Power and Water does not object to their use in such locations. Such use is entirely at the customer’s own risk.
A range of checklists, for use by Power and Water accredited contractors, can be found under Publications (click on Power Networks Quality Assurance Checklists and Inspection and Test Plan).
Power and Water Corporation owns the copyright to the documents listed below:
- NP001.1 Design and Construction of Network Assets - General Requirements
This Policy has been prepared to set out the design and construction policy associated with the connection of new customers to the electricity network, including subdivisions. It also sets out the procedures associated with increases to the amount of supply required.
- NP001.2 General Specification for Underground Electrical Reticulation
This document sets out the basic requirements for the installation of high and low voltage underground cables and related equipment. It covers XLPE and MIND paper insulated cables. Generally "low voltage" refers to cables operated at a nominal voltage not exceeding 500 volts, while "high voltage" refers to 11 or 22 kV.
- NP001.3 General Specification for Overhead Electrical Reticulation
This document sets out the basic requirements for the design and installation of overhead distribution lines intended to be connected to Power and Water's network.
- NP001.4 General Specification for Overhead Rural Residential Subdivisions
This document sets out specific Power and Water requirements for the design and construction of rural subdivisions. It should be read in conjunction with NP001.3 General Specification for Overhead Electrical Reticulation and NP001.1 Design and Construction of Network Assets - General Requirements.
- NP001.5 General Specification for Overhead Commercial and Industrial Subdivisions
This document sets out specific Power and Water requirements for the design and construction of overhead industrial and commercial subdivisions. It should be read in conjunction with NP001.3 General Specification for Overhead Electrical Reticulation and Section 4.5 of NP001.1 Design and Construction of Network Assets - General Requirements .
- NP001.6 General Specification for URD Subdivisions
This document sets out Power and Water's requirements for the design and construction of URD subdivisions. It should be read in conjunction with documents NP001.1 Design and Construction of Network Assets - General Requirements, and NP001.2 General Specification for Underground Electrical Reticulation
- NP001.7 Reliability Criteria for Distribution Networks
This document sets out the basic philosophy of planning for reliability in a distribution network, including distribution substation design. It should be read in conjunction with the publications Power Networks Planning Criteria and NP001.9 Conditions of Supply to Large Customers
- NP001.8 Handover Documentation
Contractor’s Certificate of Completion and Handover - Power Network Assets.
- NP001.9 Conditions of Supply to Large Customers
This publication is designed to assist developers and customers in early planning stages should the supply requirements necessitate the establishment of a substation on a property as required by Power and Water's Service and Installation Rule 2.7.
- NP001.10 Documentation Requirements
Production of Drawings, Design Documentation, Design Drawings, As Constructed Information and Standard Drawings.
- NP0003 Power Network Policy Installation Rules
These Rules set out the technical requirements relating to the connection of electricity installations to an electricity network operated by the Power and Water Corporation. They replace the Contractors’ Bulletins previously forming part of the Service Rules. Installation Rules should be read in conjunction with the Service Rules.
- NP007 Power Networks Service Rules
This Policy sets out the technical requirements relating to the connection of electricity installations to an electricity network operated by the Power and Water Corporation. Service Rules should be read in conjunction with the Installation Rules.
- NP010 Meter Manual
This Manual documents the procedures and policies to be followed in the installation and maintenance of metering equipment intended to be connected to any power system owned and operated by Power and Water.
- NP020 Guidelines for Developers of Subdivisions and Electricity infrastructure
These guidelines represent minimum requirements acceptable to Power and Water for the planning and layout of subdivisions as well as the design and construction of power infrastructure, services and street lighting.
- NP021 Easement Guidlines
This procedure provides guidelines covering the management of electricity easements. It is applicable to all electricity easements covering Power and Water underground and overhead power lines.
- NP027 Capture of Newly Installed Street Lighting
This Policy has been prepared to set out the design and construction policy associated with new and modified streetlights intended to be handed over to Power and Water.
- NP041 Guidelines for Electrical Design Consultants
Guidelines NP041 have been prepared to provide general information for electrical consultants to be accredited and carry out competent design of electricity infrastructure, including land subdivisions where the infrastructure is to be provided and handed over to Power and Water for operations and maintenance
- Power and Water Standard Drawings
These drawings define the materials, set out standard construction details and provide general design data for infrastructure to be incorporated into Power and Water's network.
- PNWP 030 The Installation, Connection and Operation of Three Phase Mobile Generator
This document covers the procedures, general safety rules and technical aspects relating to the installation connection and operation of Three Phase Mobile Generators. Mobile Generators are used by PWC to provide temporary supply to isolated sections of the LV distribution system and maintain the voltage within prescribed limits during emergency and maintenance periods.
Please note, the Design and Construction Guidelines have been developed by the Power Networks business unit, and relate only to the Power Networks aspect of Power and Water's business.
Different requirements exist for the water services aspect of Power and Water. For information relating to water services see the Water Services Connection Code.