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Type: Posts; User: ggunn

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  1. Replies
    13$$
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    344

    Option 2 would be my choice.

    Option 2 would be my choice.
  2. Replies
    15$$
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    349

    Thanks. I was pretty sure it didn't mean "with...

    Thanks. I was pretty sure it didn't mean "with the aid of binoculars". :D
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    5$$
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    192

    Then yeah, get a real inverter.

    Then yeah, get a real inverter.
  4. Replies
    15$$
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    349

    In the first place, I am not implying anything. I...

    In the first place, I am not implying anything. I simply quoted language from the NEC as a possible explanation for where the "line of sight" idea in an earlier post may have come from.

    If you...
  5. Replies
    5$$
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    192

    Is this one of those quasi legal inverters that...

    Is this one of those quasi legal inverters that plugs into a household outlet?
  6. Replies
    15$$
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    349

    690.15(A) in the 2014 NEC says AC and DC discos...

    690.15(A) in the 2014 NEC says AC and DC discos must be mounted "within sight of or in" inverters in not readily accessible locations. Maybe that's where it came from.
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    54$$
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    1,536

    It doesn't but some AHJ's have their local...

    It doesn't but some AHJ's have their local amendments/additions to the Code which stipulate colors to indicate voltage and phase. Austin and San Antonio both do, and their rules are different.
  8. Replies
    15$$
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    421

    Hmmm. Separate "neutral" from ground? If the 480...

    Hmmm. Separate "neutral" from ground? If the 480 service is not referenced to ground or if a center tap between two phases is grounded, that's a problem. I think you'll need a delta to wye...
  9. Replies
    15$$
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    421

    Strange that they would allow 208V and 240V 3P...

    Strange that they would allow 208V and 240V 3P with no neutral but not 480V 3P without neutral.
  10. Replies
    22$$
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    805

    In Safari I just see a negative sign inscribed in...

    In Safari I just see a negative sign inscribed in a circle.
  11. Inverters with grounded DC, i.e., older...

    Inverters with grounded DC, i.e., older inverters, some of them, anyway, could operate without a neutral, so phase to phase they didn't care if the service was high leg.
  12. Yeah, do that. If C is the high leg, and you have...

    Yeah, do that. If C is the high leg, and you have an inverter connected C-A, and you are using the neutral between A and B as the inverter neutral, then I can see where there might be a problem. One...
  13. Why would inverters cause a voltage imbalance?...

    Why would inverters cause a voltage imbalance? Inverters match the voltage they see on the AC line.

    Here's a wild guess... Sometimes on a high leg service the capacity of the high leg is...
  14. Thread: 120% Rule

    by ggunn
    Replies
    24$$
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    940

    It wouldn't. In this case what you have is a...

    It wouldn't. In this case what you have is a supply side connection and you would be limited only to the size of the service.

    BUT... some AHJ's will not allow you to make such an interconnection....
  15. It's only parallel: 14246

    It's only parallel:
    14246
  16. No, it's only parallel. The configuration is...

    No, it's only parallel. The configuration is different between the two ways to wire it, but it's still just a parallel circuit. None of the loads are ever in series, and without loads you don't...
  17. No, it's a parallel circuit. Loads in receptacle...

    No, it's a parallel circuit. Loads in receptacle A are in parallel with loads in receptacle B irrespective of whether a wire set runs from A to B or if a separate wire set runs from the breaker to...
  18. Replies
    104$$
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    2,770

    Obviously, the solution is to duct tape the...

    Obviously, the solution is to duct tape the breaker handle in the ON position so that it won't trip any more. I am surprised that none of you bright boys came up with it.

    :D
  19. Replies
    60$$
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    3,349

    FWIW, I have a big box of zip ties that I keep...

    FWIW, I have a big box of zip ties that I keep for... well, whenever I need one. It's a mixture of old and new, big and small, etc. Not too long ago I needed a large one so I went rummaging through...
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    26$$
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    1,932

    Can you combine two AC circuits with no OCPD? I...

    Can you combine two AC circuits with no OCPD? I didn't think you could.
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    26$$
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    1,932

    You do know that #10 is bigger than #12, right?...

    You do know that #10 is bigger than #12, right? Just checking.
  22. Replies
    31$$
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    1,062

    I'm not sure what your point is, but there have...

    I'm not sure what your point is, but there have been major advances in electrical energy storage over the past few years, and like most other tech it will likely become safer, cheaper, and more...
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    31$$
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    1,062

    Correctamundo. Any new technology has its risks...

    Correctamundo. Any new technology has its risks as it emerges, but those risks diminish as the tech is developed. If you were to look at jet airliners' safety record in the early days of their...
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    31$$
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    1,062

    No. I am saying that there are different lithium...

    No. I am saying that there are different lithium chemistries that are used for batteries and some are more likely to cause heat incidents than others, and that the ones that have done so get lots of...
  25. Replies
    31$$
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    1,062

    There is more than just one lithium chemistry...

    There is more than just one lithium chemistry used in batteries. Most are very stable.
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