A 100 amp service requires that you use AWG 4 copper wire or AWG 2 aluminum wire.
Approximate overall diameter of the wire is 12.8 mm. If you are looking for metric wire size 95 mm2. 187500 circular mils.
A #3 copper wire with an insulation factor of 75 and 90 degrees C is rated at 100 and 105 amps respectively.
Depends on length. The more length, the more resistance.
# 4 copper wire short distance.
1awg
Approximate overall diameter of the wire is 12.8 mm. If you are looking for metric wire size 95 mm2. 187500 circular mils.
A #3 copper wire with an insulation factor of 75 and 90 degrees C is rated at 100 and 105 amps respectively.
12 AWG should be fine since resistance of wire is only about .16 ohms per 100 ft.
You size it by the current required by the secondary, and the primary will be smaller wire.
Depends on length. The more length, the more resistance.
I would recommend you use AWG # 2 copper or AWG # 1/0 aluminum for that distance and amperage.
Service wire for 100 amps requires AWG #3 copper.
Service wire required is AWG # 3/0 copper.
To calculate the wire size, a system voltage is needed.
# 4 copper wire short distance.
45
This is a voltage drop question. A voltage needs to be stated to answer this question.