American Wire Gauge. Measure the thickness of the cable.
It denotes the physical size and hence the current carrying capacity of the wire.
AWG stands for American Wire Gauge.
A wire size of 250 MCM will limit the voltage drop to 3% over a distance of 200 feet.
A 25mm sq electrical cable is equal to a #4 AWG conductor. A #4 copper conductor with an insulation factor of 75 and 90 degrees C is rated at 85 and 95 amps respectively.
Primary : 4 Secondary : 3/0 <<>> To answer this question correctly a voltage must be stated.
The 12 refers to the size of wire in AWG - American Wire Gauge. 12 gauge wire can legally carry 20 Amps, and would be used if the circuit breaker is 20 A. 14 AWG can carry 15 Amps, used on a 15 A breaker. The 2 or 3 refers to the number of ungrounded conductors in a cable (such as romex or NM). 12-2 would contain a hot (black) and a neutral (white). 12-3 would contain two hots (black and red), and a neutral (white). Additionally, these cables are available "with ground," meaning a bare ground wire is added to the cable. So a "12-2 with ground" would actually contain three conductors including the bare ground wire. A 12-2 with ground cable would be used where you needed to run a single 20 A circuit. You are allowed to share a ground and neutral when running two circuits if the circuits are on different legs (phases) in the panel. 12-3 is used for this purpose. It can also be used where you need 240 volts (between the black and red) with a neutral (and ground).
The cross-sectional area of a #22 AWG wire is 0.326 mm2 .
:D
WIRE
8 AWG.
30 Amps
2 AWG Aluminum.
2 AWG Aluminum.
2/0 AWG in copper and 4/0 AWG in Aluminum or copper clad aluminum.
If it's a heavy gauge (around 8 AWG IIRC), that's the charge wire to the alternator BATT post. The larger cable (about 4 AWG) goes to the starter.
Canada and US - 10 mm is larger that #8 AWG and smaller that #6 AWG. To err on the safe side I will use the #6 AWG equivalent of 60 amps, RW90 insulation, copper wire.
# 2-awg
Velocity factor depends to a large extent on the dielectric (insulation) used. You will have to specify the exact cable to answer this question.
2/0 AWG copper cable