[RE-wrenches] electrical permit requirements

[William Miller]

Nick:

Rhetorical questions to follow:

If you do not provide string calculations, how do you verify that Voc will 
not exceed NEC limits?  How do you verify DC feeder ampacities?  Does your 
jurisdiction not verify such parameters?   We know you have a handle on 
these factors, but how about the Johnny-come-latelies trying to take your 
business?  Should they not be kept to uniform standards meant to protect 
the safety of the consumer (and ensure fair competition)?

Can you really expect a field inspector or the customer to verify these 
parameters?  I believe all of these issues are best handled by stringent 
plan check.

What is more important to you:  saving a few bucks in permit fees or 
preventing house fires?

William Miller




At 05:01 PM 6/15/2010, you wrote:
>Hi Jeff:
>     My standard permit docs are comprehensive, but do not include 
> documentation regarding string sizing, thank goodness.  A permit 
> technician/ plan reviewer should not be overseeing string sizing.  You 
> should be thankful that the permit fees are so low, because that is the 
> best thing a jurisdiction could do to support PV!
>     Any fly-by-night, incompetent installer can check string sizing on 
> the inverter manu's web site.  I would suspect that, regardless of the 
> plan review process, the less experienced installers will still be 
> accountable to the inspector and their customer.
>
>Nick Soleil
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