So, not including the ground wire will be punishable by the law in certain areas. If you are building a new house or upgrading your power service, do not forget to include the ground wire with the hot and neutral wires. Follow it and then decide the size of the ground wire. The wire size will change depending on your location, fault current, and run length.įind out NEC guidelines and the code of your living area.Īll regions have their grounding chart. The best ground wire size for 200 amp service is 4 AWG copper wire or a 2 AWG copper-clad aluminum wire.Īccording to Article 250 of the 2020 NEC (National Electric Code), 4 AWG copper and 2 AWG aluminum is the minimum ground wire size in 200 amp. So, they must be a higher gauge to maintain a proper balance. The copper wire for the grounding has to be at least 2 AWG in diameter to give the maximum voltage.Īluminum has low conductivity levels and is more vulnerable to heat and corrosion. The ground wires take up the excess electricity from the power surges and help them flow through the ground rods. Ground wires support us by creating an alternate path for the current to flow when any short circuit occurs. Grounding wire size for 200 amp service ranges from 2 AWG to 8 AWG.īesides, the sizes may differ depending on the materials, like: Copper Aluminum 8 AWG 6 AWG 4 AWG 2 AWG 6 AWG 4 AWG 2 AWG 4 AWG Wire size for copper and Aluminum material What size of grounding wire is needed for 200 amp service? Whatever size you choose, the measurement for the hot and neutral wires will remain the same. If you use copper-clad aluminum, the wire size must be 4/0 AWG. So, most standard houses have 200 amp service.īesides the ground wire, there are many other things to consider while upgrading the electrical service.īoth the hot and neutral wires for 200 amp service have to be around 2/0 AWG if you use copper wires. Many people have decided to upgrade to a higher electricity service due to the introduction of several electrical appliances. If your house has a 50 amp service, the service will give you only 50 amp of electricity. Amp is a base unit that measures the volume of electricity. The term amp is known to a lot of people. What is the minimum size for a service entrance conductor? What is the wire size for the 200 amp service?.Can I run a 200 amp sub panel off the 200 amp main panel?.Use the grounding wire to connect the ground connection with the rod.What kind of wire should I buy for a 200 amp service?.What factors should be considered before buying a grounding wire?.What size of grounding wire is needed for 200 amp service?.What is the wire size for the 200 amp service?.
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