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Run ext. electrical through limestone foundation

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  1. #1
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    Question Run ext. electrical through limestone foundation

    Hi there,
    Over the summer I built a fence incorporating two brick columns for the gate. I ran electrical inside the columns for light fixtures as well as an outlet box about 12 inches off the ground coming through one of the columns. The electrical is outdoor use (don't recall the kind/rating as it was over the summer). I was advised that this particular cable should not be in conduit underground (because of heat?) and that it should be buried 18-24 inches.
    This part is done but is now coiled up under my porch as I ran out of time over the summer and wasn't sure of the next step. I have a 24 inch (but may need a longer) boring bit which I think will go through the limestone fairly easily, but how do I run the cable into the basement? Does it now go inside of conduit because it it above ground? And if so where/how to make the transition from no-conduit to conduit?
    I understand the exterior electrical must have GFCI protection which I also understand can but installed in the basement (either at the fuse box or just on the branch leading outside). Is this correct?
    I assume once everything is in place I can either mortar the conduit in place (in the wall) or I can insulate with "Great Stuff" foam insulation. I don't need actual boxes on either side of the wall, do I? I would think I can just punch the conduit through and insulate around it. Is there a way to insulate inside the conduit or would that cause heat issues?
    Finally, in case this matters, the outside lights will be standard 60 watt bulbs and the outlets will feed Christmas lights with the occasional leaf-blower usage.
    Any suggestions would be appreciated!
    -Stephen

  2. #2
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    StephenP where abouts are you?
    From your previous posts you talk about feet so I am assuming you are not in Australia. It would be handy to know as all the answers would quote rules in Australia and New Zealand.

  3. #3
    Soldiers Earned Your Right To Free Speech watson's Avatar
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    I reckon he's from Wisconsin USA.

  4. #4
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    Quote Originally Posted by watson View Post
    I reckon he's from Wisconsin USA.
    Makes it a bit easier if and when someone replies if you know where they live.

  5. #5
    Soldiers Earned Your Right To Free Speech watson's Avatar
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    Sure does..........the other clue was GFCI protection

  6. #6
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    Yes, I'm in WI USA. I hadn't considered that there would be such a difference between locations but I guess you're right. Do you have any suggestions of us forums for me to take a look at? Otherwise I'll google it when I get home tonight.
    The reason I've been reading this forum is because there's a lot of real knowledge here and not so much Do-it-yourself people making guesses!
    Thanks!
    -Stephen

  7. #7
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    The forum shown below is a a pretty good forum for U.S.A. questions. It has some very knowledgeable people on board;
    DIY Chatroom - DIY Home Improvement Forum

  8. #8
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    Quote Originally Posted by watson View Post
    Sure does..........the other clue was GFCI protection
    I thought GFCI was something special that I had never heard of but it is just an ordinary garden variety RCD.

  9. #9
    1K Club Member jago's Avatar
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    Imperial measurements and basements were the other clues!

  10. #10
    Soldiers Earned Your Right To Free Speech watson's Avatar
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    Can anybody advise him with his query???

  11. #11
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    Sorry Watson but I think that any advice from Australian electricians would quite possibly be incorrect as the USA uses the NEC (National Electrical Code).
    Disregarding the fact that the USA stills uses the old imperial system (amongst other outdated things), their electrical system & therefore rules, are quite different to that of European rules (50Hz vs 60Hz & different voltages, climates etc).

    I strongly advise that the OP find a site that deals with such rules.

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