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gtillotson

08:23AM | 01/10/03
Member Since: 11/26/02
33 lifetime posts
Bvelectrical
I'm about to run a second circuit through existing conduit, and the wires will pass through two junction boxes (wall box, ceiling box) before getting to the start point. Previously, I've always just stored loops of wire in each junction box when doing this (in case the circuit needs to be broken in the future). Is this the common way of doing it? I don't want to create splices if I don't have to with the new wire.

gletiecq

06:28PM | 01/13/03
Member Since: 01/01/03
35 lifetime posts
You don't have to break and splice wires at a junction box if there's no need for it. You may want to look at the NEC for derating requirements if you're running multiple conductors in the same conduit, though. It may be required by NEC.

Greg

gtillotson

06:34AM | 01/14/03
Member Since: 11/26/02
33 lifetime posts
Thanks much. This wire is in rigid conduit, two circuits total, and it is fine in terms of the box and conduit fill.

Over the weekend I realized another aspect to this--if you ever anticipate working with the conduit connections (such as a locknut replacement) to the box, a splice may be the better option (box fill permitting). Without enough slack, you'd be left with short wires after cutting and probably have to pull new wire all over again.

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