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  1. Rather than engage in a circular argument over...

    Rather than engage in a circular argument over which is best, 'plaid or striped shirts', I'm going to drop out of this one. Have fun.
  2. unless of course its utilization equipment - see...

    unless of course its utilization equipment - see definition, Art 100; not complicated at all.
  3. The LED can't have a heavy-duty lampholder...

    The LED can't have a heavy-duty lampholder because its not a lamp. If OP comes back with a vendor document that shows a 30A rated LED the intent of the Code will have been met.
  4. The code is clearly not clear about LED's. If it...

    The code is clearly not clear about LED's. If it were, this string would have ended many posts ago. Making a case over the definition of heavy-duty lamp-holders is incredibly weak. The intent of the...
  5. NEC is a guideline for electrical safety. OP has...

    NEC is a guideline for electrical safety. OP has the branch adequately protected with correctly sized wire (provided no 'derates' apply) and everything is rated for 30A. Arguing over a definition...
  6. I've installed 30A branch circuits in lighting...

    I've installed 30A branch circuits in lighting panels throughout heavy industry and never had a problem selling it to inspectors. 210.23(B) was originally intended for HID lighting, not LED's which...
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    You have to stagger the cleats - don't put them...

    You have to stagger the cleats - don't put them side by side - OR - consider using Ty-Wraps to secure to the rungs - (if outdoors, must be UV rated).
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    I'd size the cable according to the load - not...

    I'd size the cable according to the load - not the rating of the T'stat
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    Is this self-regulating heat tracing? How many...

    Is this self-regulating heat tracing? How many watts per foot?
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    Yep. Its always a good idea to pull a grounded...

    Yep. Its always a good idea to pull a grounded conductor initially rather than later, at a higher cost.
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    The OP stated transformers are over 1700 feet...

    The OP stated transformers are over 1700 feet apart, so how could they be in the same building?
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    It doesn't work that way. Even though your...

    It doesn't work that way. Even though your argument is correct technically there are no exceptions in Article 450 that allow it. But nice try.
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    Since you're the one advocating code language...

    Since you're the one advocating code language that does not exist perhaps you should write the PI...
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    I'm sure the folks who developed Article 450 (and...

    I'm sure the folks who developed Article 450 (and 240) considered all your talking points.
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    Agreed, each transformer is separately derived.

    Agreed, each transformer is separately derived.
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    Taking it through the steps: Per 450.3(B) you...

    Taking it through the steps:
    Per 450.3(B) you may omit secondary protection of the transformer windings where the primary OCPD is set at 125%. Per 240.21(C)(1) you may omit secondary protection of...
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    if its not listed as an exception, it is...

    if its not listed as an exception, it is non-compliant and requires the AHJ for arbitration.
  18. With MV switchgear, you could have an issue with...

    With MV switchgear, you could have an issue with the truck and removal of CB’s.
    6” is not a big deal but beyond that would be


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  19. Not sure - but I believe it’s preferred to tie...

    Not sure - but I believe it’s preferred to tie them in rather than floating in order to prevent pad from cracking


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  20. It’s a judgement call. I’ve seen it go both ways...

    It’s a judgement call.
    I’ve seen it go both ways - depends on QA/QC inspectors. In Petro-chem facilites they tend to be less tolerant.


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  21. I believe most AHJs would disagree with you....

    I believe most AHJs would disagree with you. Besides most housekeeping pads are nowhere near 6”


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    Since you're not downsizing the cable it...

    Since you're not downsizing the cable it shouldn't be a problem. You may have trouble landing the #4/0 cable on 60A Disconnect lugs.
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    Looks like the #4/0 (230A) will be slightly...

    Looks like the #4/0 (230A) will be slightly undersized when you add load for the Mechanical room.
  24. IMO it'd be quite a stretch to argue a concrete...

    IMO it'd be quite a stretch to argue a concrete slab that extends 6" would qualify as 'associated equipment'; however, Construction uses it all the time to avoid rework. An AHJ could approve under...
  25. Yes, this is a violation. It seems to come up on...

    Yes, this is a violation. It seems to come up on every project. You'd need to extend the pad to the prescribed distance shown in Table 110.26(A)(1) for LV Switchgear
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