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Earn +20 ptsQ: How do you ground a 200 amp service with no water main?
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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.
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 uffer ground for 200 amp service?
A 200 amp service using a uffer ground will need a #3 bare copper wire. The bare copper wire is to be not less than 20 feet in length. It also has to be within 2" of the concrete foundation footing that is in direct contact with the earth. The depth can not be less than 2 feet below finished grade.
Does the ground wire on a 200 amp box need to be 3 ought also?
No, you can use #4 bare copper ground wire.
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