Ground is sized based on the size of the feeder wire and not the amps of the service!
However, for a 600 amp service 1500MCM copper wire is one option (NEC 310.16) ;therefor, ground wire is 3/O copper (NEC 250.66)
or
another option is a two sets of 350 MCM copper wire then a #2 copper (since the biggest feeder wire is 350MCM).
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∙ 11y agoWiki User
∙ 12y agoA #6 copper wire with an insulation factor of 75 or 90 degrees C are both rated at 65 amps.
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∙ 11y ago#6 gauge copper
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∙ 14y ago#8 copper wire.
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∙ 10y ago#8
A 100 amp residential service requires a size #8 copper wire, it should be insulated in green.
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.
A 100 amp service requires that you use AWG 4 copper wire or AWG 2 aluminum wire.
The size of grounded conductor that is required for 400 amps will vary depending on the circuit. A person should consult with their electric company before attempting to wire the circuit themselves. <<>> No conductor smaller than #6 bare shall be used for a ground wire. 2006 code book called for #3 copper for a 400 amp service.
#6 bare copper wire.
You do not use a ground wire in the connection from the meter base to the distribution panel. A bonding wire may be required if the service is using PVC conduit.
A 200 amp service panel will require a # 4 bare copper ground wire.
six awg
Service wire required is AWG # 3/0 copper.
A 100 amp residential service requires a size #8 copper wire, it should be insulated in green.
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.
Ground is sized based on the size of the feeder wire and not the amps of the service! However, for a 600 amp service 1500MCM copper wire is one option (NEC 310.16) ;therefor, ground wire is 3/O copper (NEC 250.66) or another option is a two sets of 350 MCM copper wire then a #2 copper (since the biggest feeder wire is 350MCM).
On a 200 amp or any size service the ground wire is easily identified. Look in the distribution panel for the neutral bus bar. This is where the service neutral (white wire) is connected to the distribution panel. There you will see a bare copper wire connected to the same neutral bar. This is the ground wire that is connected to the ground rods out side of the house.
Yes, NEC has an entire chart on grounding.
For a 200amp service you need number 4 copper
The size of grounded conductor that is required for 400 amps will vary depending on the circuit. A person should consult with their electric company before attempting to wire the circuit themselves. <<>> No conductor smaller than #6 bare shall be used for a ground wire. 2006 code book called for #3 copper for a 400 amp service.
A 100 amp service requires that you use AWG 4 copper wire or AWG 2 aluminum wire.