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Earn +20 ptsQ: What size ground for a 500 amp service?
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What size ground wire for 100a service?
A 100 amp residential service requires a size #8 copper wire, it should be insulated in green.
How do you know what size ground wire to use on a 200 amp service?
NEC code requires #6 bare copper.
Are there negative wire gauges?
Yes, there are ground wire gauges. The approiate size ground wire must be matched to the size service you are installing. For instance a 200 amp serivce must be grounded with a # 4 bare copper ground wire.
What size cold water ground for a 200 amp residential service?
#4 bare copper connected to two 8' copper ground rods 6" apart driven into the ground.
What size feeders for two 225 amp panelboards?
Use AWG #1 copper service entrance wire and #4 copper ground wire.
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