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  1. Replies
    10$$
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    181

    As indicated by footnote of brochure: Ask for...

    As indicated by footnote of brochure:

    Ask for electrical load data for each unit you will be installing. Tell them you need the information for the electrical service load calculation required by...
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    3$$
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    117

    Perhaps a related thread... ...

    Perhaps a related thread...

    http://forums.mikeholt.com/showthread.php?t=161174
  3. Replies
    11$$
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    178

    Assuming first off it's 3 phase, 4-wire wye...

    Assuming first off it's 3 phase, 4-wire wye system, it could be either. If majority of loads are linear, its 3. If majority is non-linear, then its 4.

    Essentially, non-linear means electronic...
  4. Replies
    10$$
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    181

    Any other electrical information on the...

    Any other electrical information on the nameplate: amps, watts?

    How many units?
  5. Replies
    10$$
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    181

    What's the horsepower rating of the fan motor(s)?

    What's the horsepower rating of the fan motor(s)?
  6. Replies
    10$$
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    181

    No.

    No.
  7. Replies
    10$$
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    181

    Typically the larger of heating and cooling loads...

    Typically the larger of heating and cooling loads are included in the calculation. The fan loads are included with heating and/or cooling, whichever they run under.
  8. Thread: Smith

    by Smart $
    Replies
    10$$
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    306

    If you want to use one size wire, another way to...

    If you want to use one size wire, another way to do the voltage drop calculation is to use the values for the load center of the circuit...
    ...
  9. Replies
    56$$
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    765

    Hmmm... possibly. I was of the impression he...

    Hmmm... possibly.

    I was of the impression he has a meter/panel combo, e.g.:

    http://w3.usa.siemens.com/us/SiteCollectionDocuments/WSSResources/Internet/Products/2008-04-16_2/MC0606L1200RJBA.pdf
  10. Replies
    56$$
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    765

    You must offer more than a passing comment to...

    You must offer more than a passing comment to join this discussion.... :D
  11. Replies
    56$$
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    765

    And for the time being, I will not contest that. ...

    And for the time being, I will not contest that. What I continue to try and distinguish is where the scope of Article 690 ends, Article 705 carries the implications of an inverter's output back to...
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    56$$
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    765

    And I agree with your second sentence. What's...

    And I agree with your second sentence. What's lacking is agreement in what defines where this/these connection(s) is/are.

    FWIW, 690.17(A) of the 2014 edition expands on the possible disconnecting...
  13. Replies
    56$$
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    765

    Aside from what I consider mostly superfluous to...

    Aside from what I consider mostly superfluous to the issue, I agree.


    Let me state the issue another way, since it seems you are hell bent on referring to which way the current can and does...
  14. Replies
    56$$
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    765

    It doesn't if they all utilize the same Point of...

    It doesn't if they all utilize the same Point of Connection.


    The term has been removed from the 2014 edition.


    Exactly. It's necessary for interaction of dual/multiple systems... but that...
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    56$$
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    765

    How does that clear up anything? IMO that just...

    How does that clear up anything? IMO that just muddles the issue even more by using the term distribution equipment.
  16. Compliant.

    Compliant.
  17. Replies
    56$$
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    765

    To whom are you responding? In response to JB,...

    To whom are you responding?

    In response to JB, SP, and yourself, I simply ask any of you to cite one or more reference (NEC) which supports a PV system as a power source beyond the...
  18. I agree there are likely additional issues that...

    I agree there are likely additional issues that must be (or may already have been) addressed.

    From our end, need mo' info'.... namely load data, ocpd rating(s), conductor data, perhaps distances...
  19. Replies
    2$$
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    183

    Under the NEC, if the GEC connects directly to...

    Under the NEC, if the GEC connects directly to the resistor, it is obviously sized per 250.66, as is the Equipment Bonding Jumper (EBJ). if the GEC is connected elsewhere, the EBJ is the same size...
  20. Replies
    10$$
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    374

    Agree. The neutral being a grounded conductor...

    Agree.

    The neutral being a grounded conductor must be a grounded conductor color (typ. white).
  21. It was done in amperes because if you did it in...

    It was done in amperes because if you did it in VA the current would be wrong for the line-to-line loads. For example, the 230V air conditioner at 1440VA divided by 120V yields 12A... when it is...
  22. The 200A chiller is fed with a 300A breaker and...

    The 200A chiller is fed with a 300A breaker and conductors, then has a local 200A-fused disconnect.

    New load fed with 150A conductors and local 150A fused disconnect off the same 300A breaker.
    ...
  23. Replies
    56$$
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    765

    Of interest in the definition is the demarcation...

    Of interest in the definition is the demarcation point, otherwise known as the Point of Connection. 705.12 errantly assumes one source is a service and completely disregards the possibility of...
  24. Replies
    56$$
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    765

    Yes, the requirement is for disconnect only, not...

    Yes, the requirement is for disconnect only, not ocpd.

    However, the scenario being questioned is 30A ocpd at MLO service panel and 30A ocpd at inverter (breaker used as disconnecting means...
  25. Replies
    56$$
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    765

    I'm not an adversary of your logic, but can you...

    I'm not an adversary of your logic, but can you cite reference to the section(s) which covers these conductors' protection and rating requirements?

    Is there anything in the code which prevents...
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