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  1. Also under 215.4. The only problem now is...

    Also under 215.4.

    The only problem now is that the term "common neutral" is not defined in the NEC and when the code change was made in 2011, many thought that the neutral that is used with a...
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    In general, the only difference between that...

    In general, the only difference between that system and a grounded system is that your system will not have a system bonding jumper. Everything else, including the bonding and grounding conductor...
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    Take a look at 250.20 and 250.21.

    Take a look at 250.20 and 250.21.
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    I would not expect to see a splice in that run. ...

    I would not expect to see a splice in that run.
    Make sure you take a look at 300.19 if you have a 200' vertical rise.
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    I don't agree that a disconnect switch enclosure...

    I don't agree that a disconnect switch enclosure is a cutout box. I know that this is something that Mike Holt has taught, but I do not think he is correct.
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    I don't know about people, but the code clearly...

    I don't know about people, but the code clearly sees the light poles as structures. If it didn't there would be no reason for Exception #3 to 225.32
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    The service and feeder load calculations are...

    The service and feeder load calculations are based on the rules in Article 220. They do not change based on the type of lighting you install. You can play around with the branch circuits, but not...
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    You would have to have enough current flow to...

    You would have to have enough current flow to heat the wood to have pyrophoric carbonization. I don't think it occurs unless you have raised the temperature to 200°F or greater.
    I doubt that even...
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    All of the Chapter 3 raceway articles and some of...

    All of the Chapter 3 raceway articles and some of the cable articles, require the use of listed products.
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    If the enclosure is purged, then no seal would be...

    If the enclosure is purged, then no seal would be needed between the large enclosure and the T fitting. If the enclosure is not purged, a seal would be required between the large enclosure and the T...
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    You will have to look at the manufacturer's...

    You will have to look at the manufacturer's information as some terminal blocks are suitable for use with more than one conductor per terminal point.
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    I wonder if there ever was a real technical...

    I wonder if there ever was a real technical reason for limiting the use of tandems? If you have a panel with a 125 amp bus and limited to 30 breakers, what physical change would be made when they...
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    It if fairly common for nitrogen to be used as...

    It if fairly common for nitrogen to be used as the purge in industrial applications.
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    The only approved test method is the test button...

    The only approved test method is the test button that is part of the GFCI. If you push the button and the device trips, the device is working correctly.
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    The standard says the GFCI must not trip if the...

    The standard says the GFCI must not trip if the current is less than 4mA, it is permitted to trip if the current is 4mA to 6mA, and it must trip if the current is 6mA and above.
  16. If the filter prevents the AFCI from seeing the...

    If the filter prevents the AFCI from seeing the "false" arc signature, does it also prevent the AFCi from seeing a real one....assuming that a real arc signature can even exist at dwelling unit...
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    I have not seen any real world case studies that...

    I have not seen any real world case studies that show neutral harmonic current is an issue, other than data centers or places like that.

    I have not seen any that showed issues based on...
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    250.24(A)(1) permits the GEC to be connected to...

    250.24(A)(1) permits the GEC to be connected to the grounded conductor at any point on the line side of the service disconnect.
    Are there any grounding electrodes at the building itself?
  19. It doesn't matter who owns the conductors in...

    It doesn't matter who owns the conductors in question. They are service conductors up to the service disconnect. 240.21 does not apply to service conductors. The overcurrent protection for service...
  20. In general, most non-heat producing devices that...

    In general, most non-heat producing devices that are marked for use in Class I locations, are also marked for use in Class II locations.
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    Dan, I don't see reclassification the same as...

    Dan,
    I don't see reclassification the same as just pulling the wire in the raceway with the power conductors. It also requires that you use nonpower limited devices on the reclassified circuits.
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    I don't understand how the actual type of...

    I don't understand how the actual type of lighting that is to be used enters into this. You still have to size the service per the rules in Article 220.
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    There are a number of cases where the code tells...

    There are a number of cases where the code tells us the electrons behave differently based on who owns them.:)


    It is my opinion that quadplex and triplex are recognized as suitable for the...
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    That is what the code section says to me.

    That is what the code section says to me.
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    I have never seen an attachment plug on the cord...

    I have never seen an attachment plug on the cord of an industrial sized submersible pump. I have also never seen one on a municipal submersible sewage lift pump.
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