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  1. Replies
    1$$
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    145

    If the conduit is used as a raceway, no other use...

    If the conduit is used as a raceway, no other use is permitted

    -----------------------------------------------------

    I am closing this thread, in accordance with the Forum rules. This Forum is...
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    52$$
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    1,718

    It's hard to imagine that a new car rolls off the...

    It's hard to imagine that a new car rolls off the line every minute, until you see it in action. Our local old GM plant is now the Tesla plant and they are not yet up to that rate, but when they made...
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    52$$
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    1,718

    No, there are dirt cheap no-name knockoff drives...

    No, there are dirt cheap no-name knockoff drives coming from China and sold on FleaBay and Amazon now that are the worst things I have ever seen. Bad solder joints, questionable components, no UL...
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    3$$
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    271

    Are you thinking of cable grips like that, or...

    Are you thinking of cable grips like that, or clamps / cleats for bracing a vertical run?

    For cleats, I found these last year, I like them a lot.
    http://hugtherung.com/
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    3$$
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    250

    OK as in legal, sure, in fact anything with bus...

    OK as in legal, sure, in fact anything with bus bar is built essentially that way. OK as in good practice? No. It tends to lead to people leaving damaged insulation in place and "hoping for the best"...
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    52$$
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    1,718

    Fans are fine if you have a CLEAN, DRY...

    Fans are fine if you have a CLEAN, DRY environment. Some of the most spectacular drive failures I've seen have been the result of a severe buildup of dirt and airborne oil creating a "crust" over all...
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    10$$
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    475

    Or the 5150 rule perhaps? Ok, sorry, I forgot...

    Or the 5150 rule perhaps?

    Ok, sorry, I forgot that's a California specific reference...
    https://en.m.wikipedia.org/wiki/5150_(involuntary_psychiatric_hold)
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    1$$
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    167

    I would do this with a Safety Relay system, after...

    I would do this with a Safety Relay system, after having someone perform a Risk Analysis. In this country we don't yet require this as they do virtually everywhere else in the developed world, but...
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    2$$
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    262

    Correct. Just because the ATS is capable of 1200A...

    Correct. Just because the ATS is capable of 1200A doesn't mean the circuit is going to carry 1200A. There's nothing wrong with using a 1200A rated device on an 800A circuit.
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    16$$
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    If I'm not mistaken, some mfrs, Sq. D included,...

    If I'm not mistaken, some mfrs, Sq. D included, used to make special panels for High Leg systems that didn't allow you to plug into the B phase with single pole breakers, and the top part of the...
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    12$$
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    543

    Not only OSHA, I've had them rejected during a...

    Not only OSHA, I've had them rejected during a Fire Marshal inspection as well. We had to unplug everything attached to them and disassemble the boxes in front of him before he would sign off on it.
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    36$$
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    1,320

    I found it odd (as others apparently did) that...

    I found it odd (as others apparently did) that the Plumber got himself involved to that extent at all... Usually they don't want any involvement in electrical work.
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    36$$
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    1,320

    Been there, done that, it's a lot harder than you...

    Been there, done that, it's a lot harder than you might think when you print 100,000 of them at a whack for $2.50 each. The bean counters tell you "We'll have it changed next time around..."
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    52$$
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    1,718

    Without getting into your A/C sizing issues...

    Without getting into your A/C sizing issues (assuming you know how that works), it's still important to make sure the clearances are adhered to. I've seen control panels with VFDs in them where...
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    36$$
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    1,320

    There you go. But print that out and have a copy...

    There you go. But print that out and have a copy with you when this is inspected, because the AHJ may see that in the manual (especially if the plumber alerts him for some reason) and insist that you...
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    16$$
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    648

    It's also possible that they are using that 3...

    It's also possible that they are using that 3 pole breaker for 2 poles as stated, but they are then using a Phase Converter to run the 3 phase compressor, because they only had the single phase panel...
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    36$$
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    1,320

    When you contact then, understand that "GFCI" is...

    When you contact then, understand that "GFCI" is different from "GFI" as well. GFCI is that narrowly SPECIFIC designation for a Class A GF protective device. GFI is a more generic term that could...
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    36$$
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    1,320

    I agree, most likely a translation problem....

    I agree, most likely a translation problem. Elsewhere in the world, "Ground Fault" protective devices are referred to as Residual Current Devices (RCDs). They can have much higher trip thresholds...
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    52$$
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    1,718

    As soon as you say you don't have room for a bus...

    As soon as you say you don't have room for a bus bar system I'm immediately concerned for the heat in the panel as well. In addition, you MUST pay attention to the manufacturer's required clearances...
  20. The CBCT tells you IF you have current flowing to...

    The CBCT tells you IF you have current flowing to ground, then using VTs in a special configuration as Polarizing Transformers you can determine which DIRECTION the current flowing to ground is going...
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    6$$
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    435

    Whether or not you have the proper clearances and...

    Whether or not you have the proper clearances and wire bending space may be an issue.
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    14$$
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    745

    There is a practice in some circles, rarer now,...

    There is a practice in some circles, rarer now, of referring to "line and neutral" as "hot and cold". Lots of people still use the term "hot" for a line, but I rarely hear the neutral referred to as...
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    6$$
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    429

    It's part of the USA. They follow the NEC just...

    It's part of the USA. They follow the NEC just like the rest of us.
  24. Thread: Generator Sizing

    by Jraef
    Replies
    3$$
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    242

    Not really. 14,220kWH could be 14,220kW for...

    Not really.

    14,220kWH could be 14,220kW for one hour, 200kW for 2 hours per day, or 19kW running 24/7 for 1 month. So which value would you use to pick a generator?
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    7$$
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    407

    Anything that could scan through metal for an...

    Anything that could scan through metal for an image would likely be extremely hazardous to humans. CT scanning (Computerized Tomography) using X-Rays is used to detect manufacturing defects IN metal...
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