What Size Copper Ground Wire For 200 Amp Service

By | August 15, 2022




Copper Ground Wire is an essential part of any electrical system, and it is especially important when it comes to powering a 200 amp service. It is important to use the right size copper ground wire when working with a 200 amp service to ensure safe operation and prevent damage and costly repairs in the future.

When it comes to selecting copper ground wire for a 200 amp service, the general rule of thumb is that you should choose a wire that is four times the diameter of the service panel's main access wires. This means that if your service panel has two 0-gauge main access wires, which measure 4/0 AWG, then the copper ground wire should be between 1-gauge and 2-gauge. Though 4-gauge copper ground wire may work with some 200 amp services, most electricians recommend using the larger wire sizes.

When selecting copper ground wire, it is important to make sure it meets local code standards. Additionally, be sure to purchase the appropriate connectors for the installation. These connectors can help ensure connection integrity and also protect the wire from corrosion and other external wear. A well-connected copper ground wire is also important for protection against lightning strikes and power surges, which can cause serious, expensive damage. Ultimately, it is always best to check with a licensed electrician or local code enforcement authority to ensure you are choosing the right size copper ground wire for a 200 amp service.


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