Temporary power to house build site

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JoeNorm

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WA
I've got a job to set a meter/main at a transformer near the street and trench temporary panel 200' down a driveway to a future residential house site. 200Amp Service

I am trying to figure out how to do this with the least amount of waste. the best I can come up with is to run 2" PVC from the meter to a temporary panel near the site. I'll pull a smaller gauge AL wire to the temp panel, maybe 4-4-4 or something. Once it's time to pull in the service to the house I can scrap the wire, continue the pipe into the house unbroken, and then pull 4/0 for the 200amp service.

Does this sound like a good plan? or is there a better way?
 
Run 200 amp conductor to a location that you can convert without too much trouble to the permanent service disconnect. If you are on 2020 NEC you do need an exterior emergency disconnect anyway.
 
Could make it longer than the permanent run will be needed and either dig the excess up and reroute, pull conductor dig up conduit cut and divert to permanent location then pull conductor back in, if direct buried, leave excess coil buried and dig it up when changing to permanent arrangement.
 
Co worker electrician ran 4/0 from poco transformer to temp service, with coil in ground to connect to completed house. Later when house was wired, He ran the coiled 4/0 under house to new panel, but it was over 15ft, our limit for unfused service conductors. He had to pour concrete under house to encase in 2” of concrete.
 
Speaking with another GC they said it's acceptable to bring the full size wire close to the house site and coil it in the trench and cover with a plywood box. Then bolt the temp panel right to the plywood. I would not have thought that was legal but I guess it is around here.

My next question is whether I can splice short 100 amp sized feeder wires right onto the 200amp sized wire. The bigger wire will be on a 200 amp breaker from the meter/main. I think this is just a feeder tap and would be permitted, correct?
 
JoeNorm said:
Speaking with another GC they said it's acceptable to bring the full size wire close to the house site and coil it in the trench and cover with a plywood box. Then bolt the temp panel right to the plywood. I would not have thought that was legal but I guess it is around here.

My next question is whether I can splice short 100 amp sized feeder wires right onto the 200amp sized wire. The bigger wire will be on a 200 amp breaker from the meter/main. I think this is just a feeder tap and would be permitted, correct?
Click to expand...

Legal as long as you observe the tap rules.
 
JoeNorm said:
Speaking with another GC they said it's acceptable to bring the full size wire close to the house site and coil it in the trench and cover with a plywood box. Then bolt the temp panel right to the plywood. I would not have thought that was legal but I guess it is around here.

My next question is whether I can splice short 100 amp sized feeder wires right onto the 200amp sized wire. The bigger wire will be on a 200 amp breaker from the meter/main. I think this is just a feeder tap and would be permitted, correct?
Click to expand...
You can get away with a lot when the AHJ knows it's temporary.
 
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