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  1. Replies
    10$$
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    145

    the reason here, is the accessibility. not that i...

    the reason here, is the accessibility. not that i agree with it, i think the sooner it grounds the grounded conductor the better. i'm not sure if they say anything about doing it at the mast.
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    10$$
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    145

    we appreciate you trying to learn this

    we appreciate you trying to learn this
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    10$$
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    145

    250.24(A)(1) your problem with meter base is if...

    250.24(A)(1) your problem with meter base is if the connection is considered accessible, it is often not.

    250.24(B) is disconnect 2 fed directly from meter base? or from disconnect 1? 230.71(A)
    ...
  4. Replies
    62$$
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    2,226

    so are you saying the ground fault current would...

    so are you saying the ground fault current would be the same on a uniground as it would a multi grounded neutral system at say 20 miles(long distances)?


    thanks, just interested, not arguing
  5. Replies
    62$$
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    2,226

    https://en.wikipedia.org/wiki/Electrical_reactance...

    https://en.wikipedia.org/wiki/Electrical_reactance


    i know pretty much nothing about distribution design or theory, but i'm visualizing CEMF and no to little cancelling effect due to the distance...
  6. coming up from the floor in an enlarged sump...

    coming up from the floor in an enlarged sump chamber seemed alright to me, you just have to get there early to make it seem practical to most people.
  7. Replies
    62$$
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    2,226

    the physical distance between the conductors and...

    the physical distance between the conductors and earth compared to a static line ran on the pole near the circuit conductors(and frequently grounded).
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    62$$
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    i was just thinking there would be a difference...

    i was just thinking there would be a difference of capacitance between MGN and Uniground, and in turn fault current characteristics, like routing an EGC separate from the circuit conductors, ground...
  9. Replies
    62$$
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    2,226

    I don't have anything to provide as a reference...

    I don't have anything to provide as a reference and i'm likely completely wrong, but would the long length along with the distance between the earth and the wires be the problem. while if you had the...
  10. put equipment high enough and build a standing...

    put equipment high enough and build a standing platform around the equipment for servicing.
  11. you're correct, you need more airspace for heat...

    you're correct, you need more airspace for heat dissipation


    also remember
  12. Replies
    13$$
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    1,172

    you can use fiber reinforced concrete rather than...

    you can use fiber reinforced concrete rather than steel
  13. Replies
    40$$
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    3,528

    attached is a 33' report of the electrical...

    attached is a 33' report of the electrical committee, but I'm confident now they are talking about the exception that's in 230 now.


    Thanks everyone.
    does anyone happen to have report on...
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    40$$
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    3,528

    that's it, see rest of table in attachment

    that's it, see rest of table in attachment
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    40$$
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    Thanks, I will read back through the reports...

    Thanks,
    I will read back through the reports better, looking at it now maybe this was just when they allowed the six disconnect exception, where you pretty much don't provide overcurrent...
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    40$$
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    3,528

    in the old books I can no longer find a copy of...

    in the old books I can no longer find a copy of it was a table called something like diversification, last table in the section. I don't remember what year.
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    40$$
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    see attachment

    see attachment
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    40$$
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    I equate it to the table note, in 65' table...

    I equate it to the table note, in 65' table 310-14 note
  19. Replies
    40$$
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    3,528

    33' 35' 37', I have the 65'. I just used the 65'...

    33' 35' 37', I have the 65'. I just used the 65' reference to hopefully get you closer in the older books.


    Thanks
  20. Replies
    40$$
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    3,528

    I snagged that right up when you posted it...

    I snagged that right up when you posted it before, that is awesome, thank you very much
  21. Replies
    40$$
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    3,528

    If anyone happens to have a copy of or...

    If anyone happens to have a copy of or information about the utility study that was used for the substantiation of that section, that would be awesome as well, that includes any NEC reports or...
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    40$$
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    Thanks, 1933, 1935, 1937 or the closest you...

    Thanks,


    1933, 1935, 1937 or the closest you have.


    -what is currently 310.15(B)(7) in 2017 NEC, in 65' it was 310-14 table note. Resi service conductor overrating. this is the only one...
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    40$$
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    NEC, 1930's and older PDF

    Does anyone happen to know where i might be able to find PDF's or some sort of digital copy of 1930's and or older National Electrical Codes? I may be remembering incorrectly but I thought I ran...
  24. sorry, I should have specified, its just for...

    sorry, I should have specified, its just for small branch circuits #10 and smaller.

    and it wasn't an option to use solid, it was specified to use only solid
  25. Solid Conductors Specified For Conduit Installation

    What might the benefits be with using solid wire in conduit, I have came across it in an engineers specification for a commercial project.


    Thanks
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