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A 3/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 150 amps for 150 feet on a 240 volt system. This size will allow the conductor to be loaded to 120 amps. 150 x 80% = 120

Conductors are only allowed to be loaded to 80% or their rated capacity. If you need the full 150 amps then you would need to use a wire with a rating of 190 amps. 190 x 80% = 152 amps

A 4/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 190 amps for 150 feet on a 240 volt system.

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Q: What size of aluminum wire for 150 amps underground service for 150 feet from meter?

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you would use #2 aluminum urd wire for a 100 amp service

A #6 aluminum conductor will limit the voltage drop to 3% or less when supplying 40 amps for 110 feet on a 240 volt system.

2/0 if copper is used; 4/0 if aluminum is used. The neutral and ground are usually smaller. 2/0 is only rated for 185 amps. 3/0 copper is rated for 210 amps, 250 MCM is rated at 215 amps if aluminum is used.

A 2/0 aluminum conductor, with an insulation factor of 90 degrees C, when supplying 100 amps for 200 feet on a 240 volt system, will work.

Assuming the service voltage is 240 volts. A 2/0 aluminum conductor, with an insulation factor of 90 degrees C, will limit the voltage drop to 2% or less when supplying 125 amps for 100 feet on a 240 volt system.

a meter for amps

A 2/0 aluminum conductor with an insulation factor of 90 degrees C will limit the voltage drop to 3% or less when supplying 125 amps for 120 feet on a 220 volt system.

A current of 287 microamps, which is 0.000287 amps.

Go to your service meter. (I assume you are a small consumer using a single phase suppply). Identify the Live cable. Then using a suitable meter, such as a clamp-on meter, you can measure the current flowing into the house. It gives a neat and easy way to measure the amps.

70 amps.

A #1 aluminum conductor with an insulation of 90 degrees C is rated at 105 amps.

I can think of exactly one justification for 400 amps residential service: a tankless electric water heater, which pulls 150 amps all by itself. In general, if you want 400a service in a home you have to justify it to the electric company--they want to be sure you aren't planning to take up smelting aluminum as your new hobby.If you're going that way, most guys install two 200a load centers with a Siemens 400a meter base. The Siemens meter base has a 400a main breaker in it.

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