#4 THHN 90 deg C. Call your locale supply house for pricing. Home Depot will carry this also.
200 amp service entrance wire should be AWG # 2/0 copper or 4/0 aluminum.
You need to say whether it's a 150 amp service or a 1200 amp service it has to be one or the other. <<>> A 1/0 copper conductor with an insulation factor of 90 degrees C is rated at 155 amps. There is no ground wire stated for a 150 amp service so the next size up is a 200 amp service. The ground wire for this size is #6 bare AWG. Without knowing what types of loads that are coming off of the distribution a reduced neutral can not be recommended. The neutral will be the same size as the service conductor which is 1/0.
Wire size is based on the amperage capacity of the service it is feeding. You tell me the service amps and I can tell you the wire size.
A 3/0 copper conductor with an insulation rating of 90 degrees C is rated at 225 amps.
Up to about 100 ft the size of the wire is determined by the max current and not the distance. A 90 amp supply needs #6 wire. <<>> A #2 copper conductor will limit the voltage drop to 3 percent or less when supplying 90 amps for 75 feet on a three phase 480 volt system.
Yes, the wire size has to be increased. The existing 100 amp service will now probably have a #3 conductor with an insulation factor of 75 or 90 degrees C which is rated for 100 and 105 amps respectively. Increasing to a 150 amp service will use a #1/0 wire size. If you are thinking of an upgrade, skip the 150 amp service and go to a 200 amp panel. New homes are installing 200 amp 42 circuit panels. The extra cost is only reflected in the materials as the labour costs will be the same regardless whether a 150 amp or a 200 amp panel is installed. The wire size for a 200 amp panel is #3/0. With an insulation factor of 75 or 90 degrees C the rating is 200 or 210 amps respectively.
200 amp service entrance wire should be AWG # 2/0 copper or 4/0 aluminum.
You need to say whether it's a 150 amp service or a 1200 amp service it has to be one or the other. <<>> A 1/0 copper conductor with an insulation factor of 90 degrees C is rated at 155 amps. There is no ground wire stated for a 150 amp service so the next size up is a 200 amp service. The ground wire for this size is #6 bare AWG. Without knowing what types of loads that are coming off of the distribution a reduced neutral can not be recommended. The neutral will be the same size as the service conductor which is 1/0.
Wire size is based on the amperage capacity of the service it is feeding. You tell me the service amps and I can tell you the wire size.
A #3 copper wire with an insulation factor of 75 and 90 degrees C is rated at 100 and 105 amps respectively.
A 3/0 copper conductor with an insulation rating of 90 degrees C is rated at 225 amps.
A #3 copper conductor with an insulation rating of 75 or 90 degrees C is rated at 100 and 105 amps respectively.
Up to about 100 ft the size of the wire is determined by the max current and not the distance. A 90 amp supply needs #6 wire. <<>> A #2 copper conductor will limit the voltage drop to 3 percent or less when supplying 90 amps for 75 feet on a three phase 480 volt system.
A #4 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 85 amps.
A #8 aluminium wire with an insulation factor of 90 degrees C is rated at 45 amps.
Ground is sized based on the size of the feeder wire and not the amps of the service! However, for a 600 amp service 1500MCM copper wire is one option (NEC 310.16) ;therefor, ground wire is 3/O copper (NEC 250.66) or another option is a two sets of 350 MCM copper wire then a #2 copper (since the biggest feeder wire is 350MCM).
To calculate voltage drop to size the wire, a voltage must be stated.