What size ground wire do I need for a 100 amp service?

For a circuit protected by a 100 A breaker, the minimum ground wire size is #8 copper or #6 aluminum. Jason, A separate building always requires a grounding electrode system in addition to the equipment grounding conductor that you mention.

Can ground wire be too big?

using larger wire will not hurt anything or cause any overload. The larger wire will cost more, the pathway or where it has to fit, and the physical size of the connecting means (ie.

What size wire do you use for 200 amps?

The 250 KCMIL wire is the perfect size wire for 200 amp service because it has 255A ampacity (a minimum of 250A ampacity requirement is satisfied).

What size ground wire do I need for 100 amp service?

What wire is used for 150 amp service?

For 150 amp, you will need a 1/0-size copper wire. For a 200 amp service, you will need a 250 kcmil-gauge copper wire.

What size ground wire is needed for a 150 amp service?

What size ground wire is needed for a 150 amp service? Assuming this falls under the National Electrical Code (NEC) the size for the service ground is based on the conductor size of the Ungrounded (Hot) conductors. For 150A the size of XHHW Copper would be 1/0 for the Hot conductors and #6 AWG copper for the ground.

What is the size of the service ground for 150A?

Assuming this falls under the National Electrical Code (NEC) the size for the service ground is based on the conductor size of the Ungrounded (Hot) conductors. For 150A the size of XHHW Copper would be 1/0 for the Hot conductors and #6 AWG copper for the ground. Aluminum would be 3/0 for the Hot conductors and #4 AWG aluminum for the ground.

What is the minimum size of a grounded service conductor?

The initial calculation from 220.61 becomes the minimum size grounded service conductor unless modified by 250.24 (C) (1) or (C) (2). First, a load calculation should be performed in accordance with 220.61 to determine the minimum size for the anticipated neutral load.

What size ground wire do I need for 250 kcmil?

If a service consisted of three 250 kcmil copper conductors per phase in parallel (750 kcmil), the grounded conductor would need to be sized at a minimum of 2/0 AWG copper or 4/0 AWG aluminum or copper-clad aluminum conductors.