The minimum size wire that can be paralleled together stated in the electrical code book is a #3 copper conductor.
The minimum size wire that engineers spec for industrial and commercial installations is #12 and it usually is stranded not solid wire.
In the CEC only 1/0 and larger conductors can be run in parallel.
14 awg
A 600 MCM copper conductor with a insulation factor of 75 or 90 degrees C is rated for 420 and 455 amps respectively. To reduce the wire size from a single conductor, a parallel feed of 3/0 can be used.
When you talk of voltage, you should be thinking of the insulation factor of the wire. By the same token when you talk of wire size, it is based on the amperage the wire is required to handle.
Most lamp wire is parallel #16 conductors.
The minimum size home wiring is #14 AWG, the rating for that size wire is 15 amps.
The minimum size home wiring is #14 AWG, the rating for that size wire is 15 amps.
The minimum size wire that engineers spec for industrial and commercial installations is #12 and it usually is stranded not solid wire.
1/0 wire
1/0 wire
In the CEC only 1/0 and larger conductors can be run in parallel.
The question can't be answered without knowing what the voltage is. That is because the allowed voltage drop is 5% of the supply voltage, so you need to know the supply voltage. Then the wire calculation aims to find out what the minimum size of wire is that produces that voltage drop or less.
Number 10 thnn copper wire.
14 awg
14 awg
NEC Section 310.4 requires a 1/0 AWG and larger be used in parallel.