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  1. Replies
    3$$
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    168

    When you say '4-wire breaker' you're being very...

    When you say '4-wire breaker' you're being very unclear. Presumably you should be saying '4-wire feed', since there aren't many systems where 4 wires go to the breaker. Beyond that, do these 4...
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    22$$
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    565

    The service equipment requirement quoted above...

    The service equipment requirement quoted above addresses my point about meter/main combos being listed. As for whether one can modify or add to busbars between meters and main breakers without...
  3. Thread: 120 % rule

    by jaggedben
    Replies
    11$$
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    307

    The AHJ is WRONG !!!. 8-) (Whether you can do...

    The AHJ is WRONG !!!. 8-)

    (Whether you can do anything about it, well, that's another question.)
  4. (Nevermind.)

    (Nevermind.)
  5. Replies
    3$$
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    159

    You do not bond the neutral at more than one...

    You do not bond the neutral at more than one place. The appropriate place would be at or near the transformer. Sounds like your designer generally knows how this is supposed to work. The only...
  6. Replies
    22$$
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    565

    The code doesn't require panelboards to be...

    The code doesn't require panelboards to be listed? How do you know things like the ampacity of the busbars if it's not listed?

    Regardless, every panelboard I've ever seen has been listed AFAIK,...
  7. Replies
    22$$
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    565

    I concur with pv_noob. Unfortunately you can't...

    I concur with pv_noob. Unfortunately you can't really do this. Supply side taps generally require a separate meter base with field wiring to the main panel. One common work-around on meter/main...
  8. Don't know if this will help, but a couple...

    Don't know if this will help, but a couple observations...

    In your last chart, you're getting 'error on leg 2' as long as you're just rotating the legs around the inverter terminals. But you get...
  9. Replies
    5$$
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    210

    If the whole PV and light fixture kit comes as a...

    If the whole PV and light fixture kit comes as a listed assembly with its own wiring, then in my opinion you have a better argument that you're not obligated to do anything that's not in the...
  10. Replies
    80$$
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    1,760

    Yes, they do, and yes, it's a bit stupid...

    Yes, they do, and yes, it's a bit stupid sometimes. Generally the buildings we're talking about are wood frame with no structural steel.
  11. Replies
    80$$
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    1,760

    One can easily connect 20 feet of rebar within...

    One can easily connect 20 feet of rebar within 12' of foundation, or use copper wire. Anyway the 12' number might be incorrect, that is incidental to the point.



    In the jurisdiction I'm...
  12. Replies
    80$$
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    1,760

    I don't really agree. A bit of rebar in a...

    I don't really agree. A bit of rebar in a foundation does not necessarily constitute a CEE according to the NEC. It's really depends on the details of the design and how much new foundation is...
  13. Replies
    5$$
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    269

    One sees it on weatherheads, and we use cord...

    One sees it on weatherheads, and we use cord grips with multiple holes when going into a box. But when pulling in open chases between arrays, I'm thankful I've never see this enforced.
  14. Replies
    5$$
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    269

    I'm going to assume 300.4(G). A bushing is...

    I'm going to assume 300.4(G).

    A bushing is not required unless there are conductors 4AWG or larger. If you're talking about 10awg PV wire then not required.
  15. Replies
    41$$
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    1,050

    I think we're officially off-topic, unless anyone...

    I think we're officially off-topic, unless anyone wants to argue that the inverter output circuit is a feeder for the purposes of invoking 215.4. If not, then the OP can't run a common neutral.
    ...
  16. Replies
    21$$
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    1,236

    First of all, the original question was mainly...

    First of all, the original question was mainly about lightning. The dangers presented by lightning are different from and in some ways opposite to those presented by man-made electricity and...
  17. Replies
    41$$
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    1,050

    If the words in bold can be conjectured from the...

    If the words in bold can be conjectured from the definition then inverters can, too. Or maybe they are just another category of 'utilization equipment.'

    More importantly, shortcircuit's logic...
  18. My thought is that if you're concerned about...

    My thought is that if you're concerned about people touching the fence you should bond the fence. (If the fence has metal supports stuck into the ground, it will probably act as an additional...
  19. More effective at doing what? Creating an...

    More effective at doing what? Creating an electrical connection to ground? Probably by some measure yes. Protecting people or property? Less likely.

    How big an area are we talking about?
  20. Replies
    48$$
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    1,396

    I visited a large rural property recently with...

    I visited a large rural property recently with step-up and step-down transformers to bring power more than 1000ft from the service to the dwelling. Granted, the higher voltage wasn't brought inside,...
  21. Replies
    41$$
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    1,050

    I'm not interested in continuing this discussion,...

    I'm not interested in continuing this discussion, except to say that I think 705.95(B) is extraordinarily relevant to the topic, especially if one thinks that the combined neutral is not a violation....
  22. Replies
    41$$
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    1,050

    I agree with this 100%. You didn't mention 215.4...

    I agree with this 100%. You didn't mention 215.4 which allows a common neutral for feeders, but I think the chances that the OP is talking about feeders and not branch circuits are very small.
  23. Replies
    41$$
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    1,050

    Look, I made a parenthetical statement, which was...

    Look, I made a parenthetical statement, which was factual and cited a relevant code section, in case anyone wanted to educate themselves about it. You questioned whether my statement was factual...
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    41$$
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    1,050

    Thank you. I knew it was required somewhere...

    Thank you.

    I knew it was required somewhere and I even looked in 408 and somehow missed it. Too bad there was so much noise on this thread before arriving at the right answer.
  25. Replies
    3$$
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    225

    Those 'couple installers' are wrong. 8-)

    Those 'couple installers' are wrong. 8-)
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