[RE-wrenches] Combining conductors

[John Berdner]

Larry:

Yes, you can parallel conductors (there is an NEC limit on minimum size allowed to parallel).
You just add the ampacity of the two conductors.
To convince yourself you can also check Table 8 Conductor Properties and sum the cross sectional areas of all the parallel conductors to see the equivalency to a single larger conductor.

Best Regards,

John Berdner
General Manager, North America

SolarEdge Technologies, Inc.
3347 Gateway Boulevard, Fremont CA 94538 USA  (*Please note of our new address.)
T: 510.498.3200, X 747
M: 530.277.4894

From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Larry Crutcher, Starlight Solar Power Systems
Sent: Thursday, April 04, 2013 9:51 AM
To: RE-wrenches
Subject: [RE-wrenches] Combining conductors

Wrenches,

Here's a tough one for me to understand. I am installing 2 volt AGM batteries. There are two terminals for each battery polarity. I have some height limits so I need to use the minimum wire size. Here's my question: If I combine two identical conductors, what is the equivalent single conductor size?

I found one "rule of thumb" that says doubling like conductors creates a AWG decrease of 3. Example: two #2 will be equivalent to 2/0. Is this true?

Thank you,

Larry Crutcher
Starlight Solar Power Systems






CONFIDENTIALITY NOTICE: This e-mail and its attachments are intended only for the use of the individual or entity who is the intended recipient and may contain information that is privileged, confidential and exempt from disclosure or any type of use under applicable law. If the reader of this e-mail is not the intended recipient, or the employee, agent, or representative responsible for delivering the e-mail to the intended recipient, you are hereby notified that any dissemination, distribution, copying, or other use of this e-mail is strictly prohibited. If you have received this e-mail in error, please reply immediately to the sender.
P  Please think of the environment before printing this email
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20130404/09fe677a/attachment-0003.html>