What Size Ground For 200 Amp Service
National electrical code nec 2014 edition table 250 122.
What size ground for 200 amp service. On a 200 amp or any size service the ground wire is easily identified. On a 200 amp or any size service the ground wire is easily identified. Two inch conduits are used to hold the copper and aluminum wires for 200 amp electrical service.
A 165 to 200 amp fuse is used on the service entrance wire at the main service panel. Look in the distribution panel for the neutral bus bar. Look in the distribution panel for the neutral bus bar.
What size ground cable do i need to use for my 200 amp service. The cable i bought came with an al ground wire but the local service company says it must be copper so i must replace it. This is based on nec nfpa 70.
Wire size chart and maximum amp ratings. The ground conductor size calculator will calculate the proper ground conductor size for grounding raceways and equipment based on ampere rating or setting of automatic overcurrent protection device in circuit ahead of equipment. The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient air temperature of 30 c 86 f.
This is where the service neutral white wire is connected to the. This is where the service neutral white wire is connected to the.
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