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Q: Do i need a new service drop line to change from 100 mp service to 200 amp service?
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Can you Convert a single 220 line into two 120 lines?

Answer for USA, Canada and countries running a 60 Hz power supply service. Yes, but you will need to change the wire from a 2 wire cable to a 3 wire cable. This allows the neutral to be brought out to the load.


What gauge Aluminum underground wire will you need to install a 50 amp service in a outbuilding - 215 feet?

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


What is the need for electrical shutdown?

You would need to shutdown the power whenever you are working on the electrical service.


How long can the wires be for a 200amp service with 240 volt?

The wires can be as long as they need to be to make the connection. It is a fact that as the length of the wires are increased, the size of the wire also has to be increased, to over come the voltage drop due to the internal resistance of the wire. A 3/0 copper conductor with an insulation factor of 90 degrees C is rated at 210 amps. This is the normal size for a 200 amp service. If the service is further away, then the increasing of the wire size starts at 3/0.


What size aluminum wire for 100 amps undergroundservice 60 feet from meter?

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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