[RE-wrenches] Parallel wire runs to increase size

[Nick Soleil]

You shouldn't parallel wiring that way.  That is not acceptable by code, and it 
is unnecessary.   If the #10 is not sufficient just replace it.  Due to the fact 
that the larger wiring has much less resistance, most if not all of the current 
will flow on the larger wires.

 Nick Soleil
Project Manager
Advanced Alternative Energy Solutions, LLC
PO Box 657
Petaluma, CA 94953
Cell:   707-321-2937
Office: 707-789-9537
Fax:    707-769-9037




________________________________
From: "Starlight Solar, Larry Crutcher" <larry at starlightsolar.com>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Wed, February 2, 2011 8:00:07 AM
Subject: [RE-wrenches] Parallel wire runs to increase size

 
Wrenches,
 
Some of our business involves repairing poor  PV solar installations on 
recreational vehicles. So often we wind up installing  a roof junction box and 
running a second PV to controller wire and then  replacing the controller to 
battery wire size. For instance, we may find a 10  gauge wire run to the 
controller. We then add #8, #6, #4 or even 2  gauge and parallel to the #10 
depending on power and distance of the run. My  question: Is there a calculator 
or chart that will tell me what the combination  of any two wire sizes equate 
to? example: #10 + #4 = X
 
Thanks.
Larry Crutcher
Starlight Solar  Power Systems
powered by STARLIGHT™


      
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