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About David Coil/C. R. Construction
Expertise
I can answer most any remodel and repair question. I have done almost everything...and done it well. From foundations to the roof. I have helped MANY from all experts.com recently.

Experience
Most expertise is carpeting, flooring, tile, sheetrock, electrical and plumbing.   40 yrs of experience in all trades.

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I am a licensed contractor in California and Nevada.

 
   

You are here:  Experts > Education > Votech Education > Construction & Contractors > Temporary Construction Power

Topic: Construction & Contractors



Expert: David Coil/C. R. Construction
Date: 7/19/2008
Subject: Temporary Construction Power

Question
QUESTION: How do I set up temporary construction power? What is the best manufacturer of temporary service panels( so I can go to their website and study)? How many outlets and what amperage do you recommend? Is it wired just like a home service entrance, only waterproof?

Thank you - Larry

ANSWER: Are you refering to temp power on poles from a meter on site location, or a generator that you can plug into the panel box?  If you are looking for a distribution panel...I like Square D the best.  If you can have 70amps to any one location, you can power all your tools and as needed the HVAC till job is done.  A generator is limited to about 30amps...which is enough....but keeps it simple for power consumption.

---------- FOLLOW-UP ----------

QUESTION: I want to install temporary power on a pole, not a generator.I will be building a house that will have buried service. Where should I install the pole for the power? Should I dig the trench first, and install the pole somewhere along the trench? Will the utility want a trench to the pole? The water heater and stove top will be electric. I'll be using a heat pump, and installing a heated whirlpool bath tub in the master bath. I haven't done any load calculations yet, but I may need a 300 amp service.

Thank you very much for your help. Thank you for your time - Larry

ANSWER: It is a good idea to place the pole near the trench...for convenience.  To my knowledge service panels are 100amp 200amp and 400amp for residential.  Typically..over 2500square foot house starts at 400amps.  Assuming you have 3 or more heatpumps...50amps each...That is a considerable load.  Stove/range 50amp combined. 300watts per ft residential load.  200amps for typical lights and recepticles.  400 is not excessive.  Less than 2200 sq ft...200amps just gets by.   HOpe you enjoy the building adventure.

---------- FOLLOW-UP ----------

QUESTION: You've been very patient with me and very helpful. Thank you very much for that. 3 or more heat pumps? The 2500 ft includes the garage. I was assuming one heat pump per house, like one furnace per house in a cold climate. I know I'm showing my lack of experience here. I just ordered Manual H from ACCA. I'm sure that will teach me a lot.

By the way, thanks for the cheerleading. I appreciate it. I have one more pressing question. It's about concrete. I'll ask that in my next post to you.

Thanks again - Larry

Answer
OK...now some more tid bit info.  In general...tonage for your HVAC...400 to 450 sq ft per ton.  5 ton unit....2000-2200 sqft living space.  That unit is working hard.  If you zone it...2 smaller units...one most of the time...the other during extreme times.  Saves energy.  You never mentioned the size of your house...so I took a risk to guess.

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