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    10$$
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    204

    As far as I know none of the code making panel...

    As far as I know none of the code making panel members are involved in the writing of the handbook commentary. The writers are all NFPA paid staff.
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    16$$
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    224

    How does 250.20(B)(1) not require a two wire 120...

    How does 250.20(B)(1) not require a two wire 120 volt system to be a grounded system?
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    16$$
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    No, a 120 volt system is required to be a...

    No, a 120 volt system is required to be a grounded system. Any system that can be grounded so as to have 150 volts or less from the other conductor(s) to ground, must be grounded.
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    12$$
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    289

    I assume that you wanted to say 230.56 for the...

    I assume that you wanted to say 230.56 for the reference to the use of orange, but that rule and the other rules that suggest the use of orange to identify the high leg of a 4 wire delta system do...
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    26$$
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    406

    I agree. It very strongly suggests that the...

    I agree. It very strongly suggests that the connection to earth provides the safety...even more so than does the term "equipment grounding conductor".
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    37$$
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    517

    So we can apply that same logic here....the...

    So we can apply that same logic here....the circuits are not serving the structure, (the wood post), they are serving the equipment (the receptacles).
  7. I have seen the insulation of the conductor cut...

    I have seen the insulation of the conductor cut down to bare copper by the sharp edge of a PVC male adapter, but since the adapter is not conductive there was no ground fault.
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    26$$
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    406

    I am one of those who prefer a change to the term...

    I am one of those who prefer a change to the term Equipment Bonding Conductor". The instructors in Canada say this became much easier for the students to understand after they started using the term...
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    7$$
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    An example would be the 24 volt control voltage...

    An example would be the 24 volt control voltage transformer in a 480 volt MCC. The secondary of that transformer is required to be grounded.
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    24$$
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    812

    I was not aware of that requirement. Is is an...

    I was not aware of that requirement. Is is an actual adopted requirement of just something the inspector wants?
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    14$$
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    409

    You stopped reading the section too soon. ...

    You stopped reading the section too soon.

    (B)(1) clearly permits the use of single conductor cables. There are no specific securing and supporting requirements in the NEC the cover the...
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    26$$
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    406

    But if the neutral is not connected to earth you...

    But if the neutral is not connected to earth you can't have a "grounded" system and you can't use the power for any system that is required to be a grounded system by the rules in 250.20.
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    14$$
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    409

    Most of the single conductors 1/0 and larger that...

    Most of the single conductors 1/0 and larger that I install in conduit are marked "CT" on the jacket.
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    24$$
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    812

    Even if you ran the pipe that you are pulling, it...

    Even if you ran the pipe that you are pulling, it is much faster to pull the wire before the drywall goes on. When I did apartments or commercial work, I always pulled all of the wire before they...
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    5$$
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    421

    The standards for both breakers and fuses would...

    The standards for both breakers and fuses would permit a 15 amp rated device to carry 20.1 amps forever without tripping. At 20.25 amps the device must open the circuit in one hour or less.
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    26$$
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    That term is not defined in the NEC.

    That term is not defined in the NEC.
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    37$$
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    517

    But you can say that about any number of the...

    But you can say that about any number of the rules found in the NEC:)
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    37$$
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    517

    Four current carrying conductors sounds like two...

    Four current carrying conductors sounds like two branch circuits to me.

    No need to debate, just look at Article 100.
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    37$$
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    517

    What about 225.30?:)

    What about 225.30?:)
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    14$$
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    409

    Show me the requirement for the securing of a 1/0...

    Show me the requirement for the securing of a 1/0 THWN conductor in a cable tray.
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    14$$
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    409

    There are no specific requirements the cover the...

    There are no specific requirements the cover the securing of single conductors to the tray. No securing is required for a horizontal cable tray run. Other that horizontal runs just require that...
  22. It is highly unlikely that grounding is the issue.

    It is highly unlikely that grounding is the issue.
  23. Take a look at 352.46

    Take a look at 352.46
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    24$$
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    812

    While, on large tract housing projects, there may...

    While, on large tract housing projects, there may be different crews that do the conduit, they are still all electricians.
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    22$$
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    464

    You are pulling all #10s, you are not using #12,...

    You are pulling all #10s, you are not using #12, why would you even think about the size of the jumper?...just use some of the scrap #10. Codewise, as seen from the previous posts, the code is not...
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