Service wire required is AWG # 3/0 copper.
3/0 wire 3/0 wire
As a service entrance wire you need AWG # 3/0 gauge copper.
The appropriate wire size for a circuit requiring 60 amps is typically 6-gauge wire.
You would need to use a wire size that is rated for at least 40 amps to be safe and to meet the requirements of the air conditioner. A common wire size for this application would be 8 AWG copper wire, which is rated for 40 amps.
The appropriate wire size for a circuit that requires 30 amps of current is typically 10-gauge wire.
A 3/0 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 200 and 210 amps respectively.
AWG 10.
120mm
Depends upon the voltage. The formula for amperage or (wire size) is Watts / Voltage. If the voltage is 220 volts, then the amperage would be over 400 amps. This would require a large wire size to run it. If it were 440 volts, the amperage would be 1/2 or 200 amps. That would require a smaller wire size. As the voltage goes up, the amperage goes down. At a thousand volts, the amperage would only be 90 amps. A wire gauge or size of a #2 would carry 90 amps for small distances.
Each hot leg to the neutral wire of the service has the ampacity of 200 amps, that is why 3/0 wire is required. A 3/0 copper wire with an insulation factor of 90 degrees C is rated at 210 amps.
For a 220V circuit carrying 50 amps over 200 ft, you would need a wire size of at least 6 AWG (American Wire Gauge). This size wire will ensure that there is minimal voltage drop over the distance and that the wire can safely carry the current without overheating.
The recommended wire size for a circuit carrying 35 amps of current is typically 8 AWG (American Wire Gauge).