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Subdividing

If you are subdividing land into green title or survey strata lots, you need to provide for power supplies to each lot. 

You need to apply to the WA Planning Commission for subdivision approval before Western Power can process your application for power supplies.

An electrical contractor/consultant will need to be engaged to complete a 'Design and Quotation' and/or 'Domesitc Undergound Supply' Application form.

Type of subdivision How to apply Costs and information
Residential - green title or survey Strata lots
One - three lots standard supply (63 Amps) Domestic Underground Supply Application form
Two to three lots more than standard supply (>63 Amps) Design and Quotation Application form
Four lots Design and Quotation Application form
Over four lots -
  • Design by developer's consultant to Western Power specifications
  • Costs will be quoted
  • General information
Commercial - green title or survey strata
All commercial subdivisions Design and Quotation Application form
  • We will base our quote on a minimum commercial power supply of 200kVA per hectare, or 63 Amps (three-phase, whichever is greater).
  • General information
Rural (a rural subdivision where each new lot created is 1000m2 or more)
Two to four lots Design and Quotation Application form
  • Western Power will design the installation
  • General information
Over four lots -

General information about subdividing

  • Underground connections (pillars) are compulsory in both overhead and underground areas - unless the lots you are creating are bigger than 50 hectares.
  • There are guidelines to determine how power must be provided to a WAPC-approved subdivision, according to its size, location and the surrounding infrastructure.  Please refer to the Underground Distribution Scheme Manual (PDF 2,077kb) for details.
  • For infomation on clearance procedures and to request clearance please download  the Request for clearance form (PDF 132.6kb)

Western Power standard supply

Western Power defines standard supply at 240 V single-phase or 440 V three-phase as:

  • 63 Amps single-phase (urban areas)
  • 32 Amps single-phase (rural areas and towns)
  • a maximum consumer mains size of 35mm²

Costs

The cost to provide electrical infrastructure may vary if:

  • An extension of the network is required to reach the subdivision
  • The supply is required in an unserviced area
  • You are building a larger-than-average home, or will run heavy duty or three-phase equipment

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Page update on 10 October 2008