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Builder's temporary power supply

While working on a building or construction project, you may need to organise a temporary power supply. 

Here you can find out when a temporary power supply is used, how to get connected and some technical and safety advice.

What is a builder's temporary power supply?

A builder's temporary power supply is a connection on site to give an electricity supply for building or construction work. 

It can be used for up to one year, with a short extension available if work is close to completion. After this time it needs to become a permanent connection, or disconnected.

It can't be used for providing residential, leisure or commercial power supply.

All builder's temporary supply are metered and can be either 1 phase (30/32A) for housing or small commercial construction, or 3 phase (60/63A) for large commercial or industrial construction.

An Installation Control Point (ICP) number is allocated to each builder's temporary supply, and this is transferred when the connection is changed to a permanent supply.

Installing your builder's temporary supply

Here's some useful information when installing your builder's temporary supply:

  • The equipment should be housed in a suitable pillar or pole mounted box that's accessible from the road.
  • The box needs to be weatherproof and secure from unauthorised entry and interference.
  • The recommended Height of a pole mounted box is between 1.2 to 2 metres above ground level (recommendation only for builder temporary supplies, permanent supplies to comply with Northpower height requirements for permanent meter stations).
  • Where we provide an overhead supply, the builder's temporary supply can be mounted on the termination pole (privately owned, not on a network owned pole, identifiable by fixed Northpower asset number). Alternatively it can be located on a substantial pole as close as possible to the permanent supply point.
  • When the builder's temporary supply is close to where the permanent meter station will be, remember to leave enough supply cable length for relocation to the permanent supply.


Electrical standards and safety requirements

All builder's temporary supply installations need to conform to relevant clauses in the Electricity (Safety) Regulations 2010 and any subsequent amendments; and Part 2 of AS/NZS 3000: Electrical Installations (known as the Australian/New Zealand Wiring Rules).

They also need to meet both Northpower network standards and Worksafe NZ safety requirements.

Once the installation is completed, a valid Certificate of Compliance (COC) needs to be submitted before we can liven the supply.

Organise a builder's temporary supply

To arrange a builder's temporary supply, please fill out our Application for Work form.

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