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A 100 amp residential service requires a size #8 copper wire, it should be insulated in green.

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14y ago

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A#3 bare copper conductor is used for a ground wire for 100 amp service.

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12y ago
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The minimum size grounding conductor for a 100 amp service is a #8 bare copper wire.

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13y ago
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3/0

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11y ago
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Q: What size ground wire for 100a service?
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