[RE-wrenches] parallel OCPD

[Jeff Irish]

Code issues aside, even two seemingly identical runs each with breakers would have at least slightly different resistances, causing the lower resistance run to take more than half the total current, tripping the breaker in that run, then causing a tripping of the breaker in the other run.

Jeff Irish

From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of mac Lewis
Sent: Tuesday, September 25, 2012 9:16 PM
To: RE-wrenches
Subject: [RE-wrenches] parallel OCPD

Hello wrenches,

Does anyone understand why you are not allowed to have parallel separately protected runs of wire.
For example, say I need 120A from point A to point B, why doesn't the code allow two runs of #6 breakered at 60A each.  Its probably obvious, but not to me...


--



Mac Lewis

"Yo solo sé que no sé nada." -Sócrates


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