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  1. You can find the instructions for one...

    You can find the instructions for one commonly-used brand of self-contained devices here:
    Wirecon Installation Guide.
    Note that the end of the document mentions some ways to install the device...
  2. My guess is that the neutral and one of the hots...

    My guess is that the neutral and one of the hots were swapped somewhere, so those 120V transformers were getting 240V.
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    No. Three-phase power is usually available only...

    No. Three-phase power is usually available only in commercial and industrial buildings. It would be quite unusual for a home to have three-phase power. It is possible to install a phase converter to...
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    It depends on where you are. Many states do...

    It depends on where you are. Many states do require licensing for low-voltage work; some don't.
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    My guess is that there's some kind of shunt...

    My guess is that there's some kind of shunt device built into the socket that's not working. The shunt is supposed to bypass a burned-out filament and allow the rest of the string of lights to keep...
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    Quite correct, and fixed electric heaters are...

    Quite correct, and fixed electric heaters are considered to be a continuous load.



    The NEC is available online for free (although you have to register) viewing at the NFPA.org website. Article...
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    It's possible that the failure is right at the...

    It's possible that the failure is right at the end of the wire where it connects to the element. If you're lucky, there may be enough slack in the wire to cut off the damaged end of the wire and...
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    The NEC (300.14) requires at least 6" of free...

    The NEC (300.14) requires at least 6" of free conductor, measured from the point where the conductor emerges from the cable sheath or raceway, and also the conductors must extend at least 3" from the...
  9. Thread: Ground wire

    by Igor
    Replies
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    2,197

    You can run Romex in EMT if you meet the fill...

    You can run Romex in EMT if you meet the fill requirements, although usually you wouldn't except for short lengths for protection from damage. I haven't done the math, but I suspect you need...
  10. Thread: Ground wire

    by Igor
    Replies
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    2,197

    Was your existing wiring armored cable or in...

    Was your existing wiring armored cable or in metallic conduit? If so, the conduit or armor serves as the grounding conductor.
  11. Thread: Phantom voltage

    by Igor
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    7,149

    Some of the newer Fluke Digital meters have a...

    Some of the newer Fluke Digital meters have a low-impedance mode to avoid this problem. I'm not sure if other manufacturers have come out with similar products yet.
  12. Thread: Box make up

    by Igor
    Replies
    6
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    1,586

    The NEC requires not less than 1/4" of sheathing...

    The NEC requires not less than 1/4" of sheathing inside the box (314.17 (C), 2005 edition.) There is no maximum length of sheathing stated, however if you leave too much sheathing you may not have...
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    That "Nut Twister" looks like it's meant to twist...

    That "Nut Twister" looks like it's meant to twist the wire nut, not twist the wires before installing the nut. There are other tools out there that will do the same thing; some Ideal screwdrivers...
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    No, those are for stainless steel safety wire....

    No, those are for stainless steel safety wire. The safety wire is run through holes drilled in nuts and bolts to keep them from vibrating loose.

    I don't know of anything like the OP describes that...
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    The risk is more than just being "zapped." The...

    The risk is more than just being "zapped." The POCO transformer can supply a very large amount of current, perhaps 10,000 amps, in the event of a fault. If you've ever seen an arc welder at work,...
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    You could use a redhead...

    You could use a redhead.

    The NEMA guidelines for installation of flexible metal conduit are available at:
    http://www.nema.org/prod/be/upload/RV_3_2006_final.pdf
  17. Thread: Your opinions

    by Igor
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    It depends. This stripper...

    It depends. This stripper is very nice if:
    A. You're doing assembly work at a bench, rather than field work, and
    B. Someone else is paying for the machine.
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    It's simple to hook up a forward/off/reverse...

    It's simple to hook up a forward/off/reverse switch to run a DC motor. See this website and scroll about halfway down the page to the heading "DPDT Center Off." You'll have to determine for yourself...
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    See http://www.ul.com/regulators/novdec2002.pdf ...

    See http://www.ul.com/regulators/novdec2002.pdf for UL's position on the use of tandem breakers.

    The 42-circuit limit, which dates back to the 1930's when flammable rubber-insulated wire was...
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