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11-11-02, 09:56 PM

lars3159

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Can someone point me to some info on the required number of grounds for multiple circuits run in conduit? For instance I am running four circuits in a conduit. How many pairs can share a ground of the same size as the conductors?
Thanks

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11-11-02, 10:26 PM

sberry27

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Are you talking about equipment grounds or neutrals (grounded conducters) in a shared neutral multiwire circuit?

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11-12-02, 07:23 PM

lars3159

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I am talking about grounds not neutrals. I have four circuits going to a junction box which then leave the junction box as romex. Do I need a ground for each circuit or can I run one green wire for all of the circuits which then bonds to the grounds in the romex?

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11-12-02, 07:40 PM

aphares

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one ground, sized to the largest breaker/fuse serving the branch circuits you are installing.
example: 15ampbreaker= 14 ground
20amp breaker= 12 ground
30/40/60amp breaker= 10 ground

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