Use AWG #6 wire.
The wire in a circuit helps to pass power to the electrical appliances.
Wire size is the gauge (thickness of wire) hazard is almost anything not wired correctly.
24 meters
Wire size 0000 AWG is the largest electrical wire. It is 0.46 inches in diameter or 11.86 mm in diameter. The cross sectional area is 107.16 mm(squared).
1 mm2
Electrical wire is the type of wire that is used in electrical equipment. To strip the wires, you need to use wire strippers. There is also special tape called electrical tape that is used to secure the wire.
You need an extra piece of wire of the same size with the right length to make up the shortfall. This has to be joined reliably with a good electrical connection on the end of the existing wire. It can then be connected to the switch.
You need a Fish Tape and some wire lube.
Metals conduct electricity, because their atoms have a "sea" of "delocalised" electrons which pass on electrical energy from one atom to another.
As with any electrical installation, the wire size used depends on the expected maximum current the wire will carry. That cannot be determined by voltage alone.
I order to do this all the wire need to be replace with three wire.
Thomas Edison