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    Sadielou's Avatar
    Sadielou Posts: 4, Reputation: 1
    New Member
     
    #1

    Oct 11, 2008, 07:40 AM
    New modular home,200 amp,under ground condiut.
    We are putting in a mondular home for my daughter and soninlaw.We are going underground from our pole 450 ft to the home.The home has a propane furnace and a 2 ton heatpump (lenox).What size cable do we need and cooper or aluminium.I've been told to different cables so far.We are in British Columbia if that makes a difference for code.The home has a 200amp panel
    Sadielou's Avatar
    Sadielou Posts: 4, Reputation: 1
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    #2

    Oct 11, 2008, 07:53 AM
    New modular home,200 amp,under ground condiut.
    We are putting in a mondular home for my daughter and soninlaw.We are going underground from our pole 450 ft to the home.The home has a propane furnace and a 2 ton heatpump (lenox).What size cable do we need and cooper or aluminium.I've been told to different cables so far.We are in British Columbia if that makes a difference for code.The home has a 200amp panel
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
     
    #3

    Oct 11, 2008, 08:17 AM
    Your power company will have to tell you this.

    What you are doing is NOT(!! ) a DIY project.

    You will most likely have to have primary wire to a ground transformer and then secondary to the house because of the distance.

    PLEASE calla couple of electricians to get some bids to have this done by a contractor.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
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    #4

    Oct 11, 2008, 08:17 AM

    Double post

    Go here:
    https://www.askmehelpdesk.com/electr...ut-268159.html
    Neilcathy67's Avatar
    Neilcathy67 Posts: 47, Reputation: 3
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    #5

    Oct 11, 2008, 08:21 AM

    We have just done a similar installation. Copper would be to expensive, so AL is the way to go. I would consult your local supplier of Elec. as they would not allow us to do the work, but had to hire an approved contactor and I believed he used # 6 or #4 wire
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
     
    #6

    Oct 11, 2008, 09:19 AM
    Quote Originally Posted by Neilcathy67 View Post
    I believed he used # 6 or #4 wire
    I hope NOT for a 200 Amp service! :eek:
    Sadielou's Avatar
    Sadielou Posts: 4, Reputation: 1
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    #7

    Oct 11, 2008, 11:07 AM

    I had 2 quotes.I contractor said I could use AL. The EL contractor I used to wire our house said noway for AL because it was to far,450 ft to the modular copper only even though it way more money.He said he used his computer program to do the calculations.I just don't know who to trust.
    Neilcathy67's Avatar
    Neilcathy67 Posts: 47, Reputation: 3
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    #8

    Oct 11, 2008, 01:15 PM
    This was older southern home and it was only 100 amp, but they had me hire a contractor with a ditchwitch to bury the cable.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
     
    #9

    Oct 11, 2008, 01:55 PM
    The second guy I would not trust. From the little you just wrote it sounds like he needs some help with this stuff.

    AL or CU has NO bearing on distance, other than the fact that AL would have to be larger than CU for a given amperage. Maybe he is figuring on upsizing the wire for the distance so he thinks the AL would be too large? I doubt it.

    450' is a LONG way to go with secondary!
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
     
    #10

    Oct 11, 2008, 01:56 PM
    Why not continue this here so there are not two of the same threads running:
    https://www.askmehelpdesk.com/electr...ml#post1316403

    Maybe a mod can lock this one.
    Sadielou's Avatar
    Sadielou Posts: 4, Reputation: 1
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    #11

    Oct 11, 2008, 06:16 PM

    We have 5 acres,so from our secondary to the site for the modular is 450 FT.Still the unanswered question is,what wire can be used with a heatpump and propane furnace 200 amp service on that distance? Hydro will heavy up the wire to our pole.So can AL be used,what size,or does it have be copper?

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