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  1. Replies
    7$$
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    496

    That requires a university log in. Also, IEEE...

    That requires a university log in. Also, IEEE Xplore requires a subscription. But thanks anyway.
  2. The perspective of this photo is not giving me...

    The perspective of this photo is not giving me the information I would need in order to answer your question. Do you have a photo taken from directly in front? My question is whether the piping is...
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    22$$
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    1,108

    Saying that something exists already and...

    Saying that something exists already and therefore it must be OK is taking logic too far. If it was never in compliance, not even when it was first built, then it is still not in compliance. I...
  4. To be specific, the article that speaks of GFCIs...

    To be specific, the article that speaks of GFCIs (210.8) says that "ground fault circuit interrupter protection. . . shall be required. . . ." As you see, it speaks of protection, not of any...
  5. I am closing this thread in accordance with forum...

    I am closing this thread in accordance with forum rules. This forum is intended for use by electricians and electrical contractors, inspectors, engineers, and vendors with their job-related duties. ...
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    22$$
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    1,108

    You have "outside feeders" from the location of...

    You have "outside feeders" from the location of the 1600 amp disconnect to the inside wall of the building. The NEC requires the individual feeder disconnects to be close to the inside wall. ...
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    19$$
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    742

    Would it not have to be 2872, or some similar...

    Would it not have to be 2872, or some similar designation that assures 72 inches of height while standing in the doorway?
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    19$$
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    742

    You'll have to take that up with Frank. It was...

    You'll have to take that up with Frank. It was his numbers.

    But I think we all agree that the final, installed, width of the opening has to be at least 30", or there is a violation of working...
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    22$$
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    I think the attempt here is to say that the...

    I think the attempt here is to say that the building is provided power by one, and only one, "service." The required building disconnecting means is intended to be the disconnect switch located 30...
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    19$$
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    Dennis, take a look at Frank's post #2. The...

    Dennis, take a look at Frank's post #2. The figure "28" is not a size in inches, but rather a designation (not unlike a 2x4 to a carpenter).
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    7$$
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    496

    IEEE Standards Dictionary

    Can anyone who has access to this document tell me whether its definition of "manhole" is such that a vault that sits under a transformer would meet that definition?
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    1$$
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    NEC 2017, article 555.3, requires all overcurrent...

    NEC 2017, article 555.3, requires all overcurrent devices that supply marinas to have the 30ma ground fault trip. For a new marina, this would certainly include breakers in distribution panels...
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    22$$
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    I don't like the idea of the service disconnect...

    I don't like the idea of the service disconnect being 30 feet from the building. I acknowledge that 230.70(A)(1) says it can be outside, but does not give a distance limit. One could argue that...
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    7$$
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    Told by whom (i.e., what degree of authority does...

    Told by whom (i.e., what degree of authority does the person have)? Told how (i.e., note on a drawing, paragraph in a specification, or simple word of mouth)?
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    7$$
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    427

    I agree with those who have said the 25 foot rule...

    I agree with those who have said the 25 foot rule could be applied. I further agree with AtTheKeyboard, that you may need to submit an RFI. It depends mostly on the wording of your contract. Do...
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    22$$
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    936

    I see no reason why it could not. You just don't...

    I see no reason why it could not. You just don't run or connect a neutral wire. All the load sees is a set of three wires being brought to it. The load cannot discern how those wires are connected...
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    19$$
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    742

    If you are asking whether the presence of a door...

    If you are asking whether the presence of a door within 36" of the front of the panel would be a violation of working space, that answer is no. Nobody will try to work on the panel when the door is...
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    7$$
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    592

    You could stop where you are, and call for all...

    You could stop where you are, and call for all downstream panels to have an SCCR of 10,000 amps. The short circuit current available at the secondary of the transformer will be under 4,000 amps. ...
  19. What makes them think they have a pump that is...

    What makes them think they have a pump that is capable of delivering 6000 PSIG? At what flow rate are they expecting to achieve that pressure? Do they have the pump curves to show you? This may...
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    22$$
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    891

    I learned a long time ago (from my wife, who was...

    I learned a long time ago (from my wife, who was going through library school at the time) that if you wish to help someone, you may have to look past the words they have chosen to use, and strive to...
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    22$$
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    891

    But you are not required to use the optional...

    But you are not required to use the optional method.

    I fear we are getting into the "blue-green" disagreement (see below). The OP did ask whether there was anything in the NEC that would require...
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    26$$
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    1,237

    An island requires a receptacle ONLY IF one...

    An island requires a receptacle ONLY IF one dimension is at least 24" and the other dimension is at least 12". Failing that test, no receptacle would be required, and all rules related to location...
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    9$$
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    351

    I am curious as to how old that manual (and of...

    I am curious as to how old that manual (and of course the machine) might be. We haven't called circuits "115 volt" for some time. I get that many things that get power from our 120V circuits are...
  24. I believe you will find your answer in...

    I believe you will find your answer in 250.4(A)(2).

    Welcome to the forum.
  25. Replies
    26$$
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    1,237

    I can't tell for certain from the photo, but it...

    I can't tell for certain from the photo, but it looks to me that it is not more than 24" on any side. If that is true, no receptacle is needed, and any receptacle that is installed need not follow...
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