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  1. In all seriousness, that's a good approach. If...

    In all seriousness, that's a good approach. If anyone asks, you say:

    "Well, I used #10 THWN-2 wire, which is good up to about 167 degrees Fahrenheit (for 3 conductors in a conduit).
    Do you...
  2. There's really no telling the panel rating by...

    There's really no telling the panel rating by looking at it. I've seen 100, 125, 150, and 200A panels that look like that. I've also seen a 300A panel that was similarly configured (breakers on top...
  3. Measure the attic temperature over the course of...

    Measure the attic temperature over the course of some hot summer days?

    Do this in a few different attics and develop a 'rule of thumb' for a temperature adder over ambient outside temp?

    I'm...
  4. Thread: Wire Size

    by jaggedben
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    I'm going to assume you mean 705.12(D)(2). As...

    I'm going to assume you mean 705.12(D)(2). As others correctly pointed out above, this section does not apply to service conductors.

    It would take a really persnickety AHJ to require you to...
  5. I going to assume we talking about CTs for a...

    I going to assume we talking about CTs for a monitoring system, not for transforming the output of the system itself.

    I've installed quite a few such setups, and I see no violation per se. There...
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    Well, ground-fault combiners are a possibility...

    Well, ground-fault combiners are a possibility (may already exist?). As for a fault internal to the inverter or CC, I'll acknowledge the possibility, (even though it seems way, way less likely than...
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    For electrical reasons? I think that's overkill....

    For electrical reasons? I think that's overkill. Because of fall hazards? Yes.



    You mean do the cleaning at night? 8-) Doesn't seem like a good idea. I don't think a...
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    UL 1741 is the standard for grid-interactive...

    UL 1741 is the standard for grid-interactive inverters. UL 1699 is the standard for AFCI breakers. With respect to standards, the UL letter is merely stating that Enphase connection via an AFCI...
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    Didn't you say you were done debating? :p I...

    Didn't you say you were done debating? :p

    I agree with ggunn that it's not the same, for additional reasons. 'Clearing a fault' with a PV inverter or charge controller would typically only...
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    That may well have been true of the CSI rebate...

    That may well have been true of the CSI rebate program. (Their automated system probably would have spit out an error or automatically limited the rebate if the DC-AC ratio exceeded a certain limit....
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    Your confusing different inverters and making up...

    Your confusing different inverters and making up a non-existent specification difference. The 3000-6000W inverter max is 15A per channel, and the 7000 and 7700 is 18A. These are the same spec, just...
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    Glad to hear that. Fingers crossed.

    Glad to hear that. Fingers crossed.
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    csoc64 Did you see all the responses the last...

    csoc64
    Did you see all the responses the last time you asked about this subject? SolarPro's responses are pretty informative.

    If you find any let us know. :D
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    Probably microinverters, per the new requirement...

    Probably microinverters, per the new requirement in the 2014 code.
    This is the PV forum.
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    There is nothing in the inverter instructions or...

    There is nothing in the inverter instructions or the code that says I have to apply that to the inverter input.
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    On the module spec sheet.

    On the module spec sheet.
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    Not unless the instructions limit what you can...

    Not unless the instructions limit what you can do. (110.3(B) again).

    For example, the SMA manual I linked to says:



    It also includes an example with the 7000W inverter:
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    I simply don't agree with this. The charge...

    I simply don't agree with this.

    The charge controller or inverter is the equivalent of a load on the PV modules. There is no 'unwritten concept' that the load has to be capable of using the...
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    Yes, but to your original point... Where does the...

    Yes, but to your original point... Where does the code state that an inverter or CC needs to be rated for this number? For that matter, where does it state that an inverter or CC needs to be rated...
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    Is this coming from manufacturer's instructions? ...

    Is this coming from manufacturer's instructions? Or from AHJs? Or from educational materials?

    If from manufacturer's instructions then I guess there's nothing you can do. If from elsewhere, you...
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    These are the ones I have... ...

    These are the ones I have...

    http://www.amazon.com/Klein-11053-Tools-Kurve-Stripper-Cutter/dp/B000MKH0YC/ref=sr_1_3

    It may be that only Klein makes this style for 6 awg stranded.
  22. FWIW, the code term is "Utility Interactive...

    FWIW, the code term is "Utility Interactive Inverter".



    Make that not allowed to be bonded at the PV System disconnecting means, unless 1) the disconnecting means happens to be in the same...
  23. That's wrong. By thinking this is necessary...

    That's wrong. By thinking this is necessary you're creating a problem where there isn't one.
  24. Another issue might be the 6-handle rule. ...

    Another issue might be the 6-handle rule.

    In my opinion, the code allows 6 handles for each set of service conductors, and you are allowed to install a new set of service conductors for a PV...
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    Well, I will say one thing, there are strippers...

    Well, I will say one thing, there are strippers available for sizes larger than #10. My regular pair are good for #12 - #6. You often can't find larger than #10 at a hardware store or big box,...
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