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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.

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Q: What size aluminum wire for 100 amp 240 volt underground service 200 feet from transformer?

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Your service provider will give you that information The size will depend on: A) how close to the transformer are you. B) copper or aluminum C) Yes, you have a 400amp service but what will your actual peak amp usage be. D) Underground or overhead.

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.

This is a voltage drop question. To receive an answer to this question the voltage of the service must be stated.

Yes, as long as it has the necessary ampacity for the load and is properly fastened at each terminal. For example, we have a 4/0 aluminum cable feeding our 200 A subpanel 120 feet away.

2/0 (2 ought) Copper or 4/0 Aluminum.

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Your service provider will give you that information The size will depend on: A) how close to the transformer are you. B) copper or aluminum C) Yes, you have a 400amp service but what will your actual peak amp usage be. D) Underground or overhead.

Your service provider will give you that information The size will depend on: A) how close to the transformer are you. B) copper or aluminum C) Yes, you have a 400amp service but what will your actual peak amp usage be. D) Underground or overhead.

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.

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.

I would use AWG #4 for that run in alluminum. You will have a 3.8% voltage drop which is acceptible.

I would use AWG #4 for that run in alluminum. You will have a 3.8% voltage drop which is acceptible.

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.

# 6 copper wire.

A #6 aluminum conductor with an insulation factor of 90 degrees C will limit the voltage drop to 3% or less when supplying 40 amps for 110 feet on a 240 volt system.

A 1/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 30 amps for 500 feet on a 240 volt system.

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

A transformer

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