A 400 MCM copper conductor will limit the voltage drop to 3% or less when supplying 100 amps for 700 feet on a 240 volt system. This size will allow the conductor to be loaded to 80 amps. 100 x 80% = 80 amps.
Conductors are only allowed to be loaded to 80% or their rated capacity. If you need the full 100 amps then you would need to use a wire with a rating of 125 amps. 125 x 80% = 100 amps.
A 600 MCM copper conductor will limit the voltage drop to 3% or less when supplying 125 amps for 700 feet on a 240 volt system.
20Sqmm
This is a voltage drop question. To receive an answer to this question the voltage of the service must be stated.
500
A #6 copper wire with an insulation factor of 75 or 90 degree C is rated at 65 amps.
Assuming you are working with 240v, you need 4/0 copper conductors.
20Sqmm
This is a voltage drop question. To receive an answer to this question the voltage of the service must be stated.
AWG 2/0 copper.
This is a voltage drop question. A voltage must be stated to answer this question.
500
Need to know what size service is going to be installed at the end of the run.
A #6 copper wire with an insulation factor of 75 or 90 degree C is rated at 65 amps.
For that distance I would run AWG # 3 copper and install a sub-panel.
A 3/0 copper conductor will limit the voltage drop to 3% or less when supplying 200 amps for 200 feet on a 240 volt system.
Assuming you are working with 240v, you need 4/0 copper conductors.
Depends on the size of the sub-panel in that garage. If you are installing a 60 amp sub-panel 400 feet away from the main service panel then use AWG # 4.
# 6 copper wire.