A#3 bare copper conductor is used for a ground wire for 100 amp service.
Service entrance wire should be AWG #3 copper.
4 AWG copper or 2 AWG aluminum.
AWG # 4 copper.
#3 RW 90 wire
The minimum size grounding conductor for a 100 amp service is a #8 bare copper wire.
Yes, a smaller ground wire for a ground can be used. There is a rule (table) in the code book that states the size for ground wire to be use for a specific service conductor size.
A 200 amp service panel will require a # 4 bare copper ground wire.
A bare #3 copper conductor is the minimum size wire to be used.
i just left lowes an they told me to run 100 amp to my building i would need wire size 2-2-2-4 alumninum and run it in conduit the lowes around here does not sell copper wire that size
A 100 amp residential service requires a size #8 copper wire, it should be insulated in green.
A ground wire for a service distribution has to be copper. A #6 copper conductor can be used up to a 200 amp service.