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  1. Motor conductors are sized based on 125% of the...

    Motor conductors are sized based on 125% of the motor full load current from the tables at the end of Article 430. They are not normally sized for locked rotor current.
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    Start with 300.3(C) but don't forget to read the...

    Start with 300.3(C) but don't forget to read the Informational Notes. That is the general rule, but there are other rules that may apply based on the specifics of your installation.
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    If this is a machine, does the NEC apply? I have...

    If this is a machine, does the NEC apply? I have seen a lot of industrial equipment that were built exactly like that. That is a single external disconnect with individual disconnects internal to...
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    Table 250.122 just needs to be replaced with a...

    Table 250.122 just needs to be replaced with a table that works like Table 250.66. You would look at the ungrounded conductor size and read the table to find the EGC.

    Of course we would need...
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    But make sure you also read Informational Note #1.

    But make sure you also read Informational Note #1.
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    Then each cable of a parallel set must have an...

    Then each cable of a parallel set must have an EGC that is sized based on the the rating of the overcurrent protective device that feeds the parallel cables.
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    Very sure. I had that very discussion with Tom...

    Very sure. I had that very discussion with Tom Domitrovich of Eaton yesterday. He is one of the engineers who helped Eaton create their original AFCI device.
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    Bob, Actually my point was that after the...

    Bob,
    Actually my point was that after the smaller sizes of PVC are heated, they are often bent using our hands....are they "identified for the purpose"?
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    Are the circuits in the cable tray installed...

    Are the circuits in the cable tray installed using single conductors or using tray cable? The answer is different based on the wring method used in the tray.
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    At the time the code started using the...

    At the time the code started using the term"combination" type AFCI, there was at least on manufacturer that had branch circuit/feeder type AFCI that also had GFCI protection. This was not the GFP...
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    Is the method of applying the heat the actual...

    Is the method of applying the heat the actual bending equipment? I think that the bending equipment is what ever is used to apply the actual bending force.
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    The NEC does not really say that. If you...

    The NEC does not really say that.

    If you have a gas appliance that also has an electrical supply, then list item #1 is all you need to do. The NEC does not require any special bonding for gas...
  13. The typical crimp tool that would be used for the...

    The typical crimp tool that would be used for the crimping of a connector for a switch or receptacle is not a controlled crimp tool, and it has probably never been tested, other than the original...
  14. Go here ...

    Go here and type WJQR in the UL Category Code 'box" at the top. Also check the box that says "display guide information only". If you don't check that you will get a list of every company that has...
  15. There are conditions where you have no choice, if...

    There are conditions where you have no choice, if you are going to install per the rules found in the NEC.
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    Unless you are using one of the new conduit...

    Unless you are using one of the new conduit bodies that have the same radius as required in Chapter 9, Table 2 for conduit bends, the wire fill is not the issue. You need a conduit body that meets...
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    This Square D...

    This Square D document has a lot of good information if you are studying or installing motor controls.
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    Take a look at 314.30(C).

    Take a look at 314.30(C).
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    TC-ER can be used outside of the tray in limited...

    TC-ER can be used outside of the tray in limited applications up to 6' in length. If the cable is not marked -ER, it can't be.
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    Once you have wires larger than #6, you have to...

    Once you have wires larger than #6, you have to apply the rules in 314.28 to the conduit body. Where the conduit body does not have dimensions that meet the requirements of 314.28(A)(1) or (2),...
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    Are you saying that one section in Chapters 1-4...

    Are you saying that one section in Chapters 1-4 cannot modify another section in Chapters 1-4?
  22. It does apply to separate circuits, the notes...

    It does apply to separate circuits, the notes that talk about long lengths don't say anything about multiple circuits.
  23. That is a very very common misconception. I...

    That is a very very common misconception. I have even seen drawings from engineers that specified only a grounding electrode, and not an EGC, for parking lot lights, based on that very same...
  24. Yes, but from capacitive coupling, not because...

    Yes, but from capacitive coupling, not because there is an actual physical current path. The amount of current will be based on the physical size of the circuits connected to the transformer. The...
  25. My understanding that the maximum length issue is...

    My understanding that the maximum length issue is based on conductor leakage current and not on and induced or coupled voltage from other circuits in the same raceway or cable.
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