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Type: Posts; User: petersonra

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  1. Replies
    3$$
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    94

    A good UPS can last indefinitely as long as the...

    A good UPS can last indefinitely as long as the batteries are replaced periodically.

    PDUs can last a long time too.

    I suspect that there are some pretty good numbers you can get from a...
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    46$$
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    1,121

    I don't see how you can tell which pair of...

    I don't see how you can tell which pair of conductors is which in this way.

    All you can tell is there are five pair of conductors upstairs. You cannot tell which individual wire in a pair goes...
  3. The last sentence of 250.32 (B)(1) is important.

    The last sentence of 250.32 (B)(1) is important.
  4. Replies
    6$$
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    244

    IMO it is a transformer and requires a...

    IMO it is a transformer and requires a disconnecting means. As a practical matter this requirement should not be especially onerous. A breaker lockout bracket on the CB supplying power suffices for...
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    2$$
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    94

    Is the area where the cable is actually installed...

    Is the area where the cable is actually installed really a C!D1 area? You might want to take a close look at the documents that classify the area. Sometimes it is only classified to a certain height.
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    46$$
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    1,121

    the Op said something about "ringing " them out....

    the Op said something about "ringing " them out. That would seem to imply none of the suggestions would answer the question.
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    14$$
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    322

    There are some very strange rules that come with...

    There are some very strange rules that come with Obamacare policies.

    One of them is that the insurance company is only on the hook for 30 days of bills if someone who signs up does not actually...
  8. Replies
    14$$
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    322

    It seems to vary wildly by state. Some people are...

    It seems to vary wildly by state. Some people are experiencing huge premium increases and benefit changes (usually not in one's favor), others seem to be more stable.

    One thing that is sure is...
  9. Thread: kw's

    by petersonra
    Replies
    13$$
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    995

    true, but in the end, the result is in Amps. I...

    true, but in the end, the result is in Amps.

    I suspect that in context what the OP was told made some kind of sense, but since no one here is aware of the context in which such a statement may...
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    5$$
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    191

    I have also noticed this behavior with CFL bulbs....

    I have also noticed this behavior with CFL bulbs. It seems that often the bulbs that do this fail completely soon afterwards.
  11. Replies
    20$$
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    517

    why would their opinion on the code matter to an...

    why would their opinion on the code matter to an inspector more than someone else's opinion?

    and why would any honest inspector take such an opinion as being especially authoritative?
  12. Thread: kw's

    by petersonra
    Replies
    13$$
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    995

    I don't think I have ever heard a service size...

    I don't think I have ever heard a service size described as being a certain kW before.

    The NEC has a procedure embedded in it for calculating what size service is needed. It always ends up in Amps.
  13. Which one of these 4 locations would include...

    Which one of these 4 locations would include traffic signals?



    ETA: I think there are places covered in the 4 locations above that might have traffic signals that would be covered, but normal...
  14. That is where one would always put PFC capacitors...

    That is where one would always put PFC capacitors if one was correcting PF one motor at a time. Was very common to see specs not real long ago that required it for motors above a certain size...
  15. where does it say in the NEC that traffic signals...

    where does it say in the NEC that traffic signals are covered?

    if they are covered, what special requirements does the code stipulate?
  16. Replies
    4$$
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    116

    I don't think there are any codes that would...

    I don't think there are any codes that would require such a location to be classified at all, given the information presented in the OP.
  17. I am not real sure what you mean by "spikes" or...

    I am not real sure what you mean by "spikes" or "dips".

    If you are referring to transient voltage conditions that are either higher or lower than nominal, these transients are not "controlled" so...
  18. are traffic signals even covered by the NEC?

    are traffic signals even covered by the NEC?
  19. Replies
    2$$
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    163

    you might want to elaborate on just what kind of...

    you might want to elaborate on just what kind of work you have in mind and what qualifications are required (PE?).
  20. Replies
    13$$
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    248

    I don't think there is any circumstance where you...

    I don't think there is any circumstance where you would bond the GEC to H0 and still be code compliant.

    An ungrounded delta system just does not have any of the circuit conductors grounded. In...
  21. Replies
    13$$
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    248

    what X0? The OP indicated a delta secondary.

    what X0? The OP indicated a delta secondary.
  22. Replies
    13$$
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    248

    I concur. the EGC is not really associated...

    I concur.

    the EGC is not really associated with the transformer so much as it is associated with the circuit conductors, so the EMT can only be the EGC for the circuit conductors supplying the...
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    10$$
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    235

    I think he may have been suggesting no working...

    I think he may have been suggesting no working space was required for the reactor.
  24. Replies
    6$$
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    256

    A few comments. Licensing is a state or local...

    A few comments.

    Licensing is a state or local thing. Either it is required or it is not.

    Regardless of whether there is state or local licensing, someone, maybe effectively your employer, is...
  25. Replies
    20$$
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    517

    It is either a plenum or it isn't. There is...

    It is either a plenum or it isn't.

    There is no actual requirement that electrical gear of any kind be installed in an "electrical" box (with a few exceptions), and many VFDs are made to be wall...
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