Wednesday, March 09, 2005

Site Power for Building

Electrical power to the site is normally done with a "builders power pole", and an aerial service line. Being a 1-acre site, the aerial service gets a bit long, and the cost of the power pole is quite high (approaching A$700 or so for 4 months).

A good alternative is arrange "temporary/permanent" power. We need underground supply anyway (the limit is 20 meters boundary set-back, and we exceed this), so we are going to have a conduit/cable installed from the underground pit in the street to our garage. This must be done before the footing is poured, as the counduit comes up through the footing - so I have to co-ordinate the electrician to be on-site with the footings excavator. (In our case that's the same contractor as the site-prepartion contractor). Of course, I'll be on-site for this as well.

The conduit must come up through the footing exactly where the inside surface of the garage wall is (well...within 10mm I suppose), but this should be OK, as the site will have been set-out before doing the footings.

A temporary meter box is then connected to the conduit/cable coming out of the ground, with outlets for powering builder tolls/equipment. Later, once the brickwork is done, this supply becomes the permanent supply to the house.

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