A 10 mm squared conductor is equal to a #8 AWG.
A #8 copper conductor with an insulation factor of 75 or 90 degrees C are both rated at 45 amps.
10 amps
It will taken 8 amps <<>> The conversion of 2.5 sq mm wire to AWG is equal to a #12 wire. The ampacity of a #12 copper wire with an insulation factor of 90 degrees C is 20 amps.
For 3-core twin and earth cables up to 4 sq mm with reasonable air circulation, allow 8 amps per sq mm for copper and 5 amps per sq mm for aluminium. For permanent installations with high usage per day, use 4 amps per sq mm.
300a
32 turns of #22AWG copper wire on a 10 mm diameter toroidal core
10 amps
It will taken 8 amps <<>> The conversion of 2.5 sq mm wire to AWG is equal to a #12 wire. The ampacity of a #12 copper wire with an insulation factor of 90 degrees C is 20 amps.
1 mm2 aluminium wire is not easy to buy but 1 mm2 copper wire is rated at 10 amps. Since the conductivity of aluminium is 7/12 that of copper, 1 mm2 aluminium wire would be rated at 7½ amps max (the same amount of heat is produced per metre by a current of sqrt(7/12) times that for copper).
For 3-core twin and earth cables up to 4 sq mm with reasonable air circulation, allow 8 amps per sq mm for copper and 5 amps per sq mm for aluminium. For permanent installations with high usage per day, use 4 amps per sq mm.
For a wire classified under American Wire Gauge standards, 26 gauge wire is 0.0159" (0.40386 mm) in dameter. For a wire classified undere metric wire gauge standards, a 26 gauge wire is 2.6mm in diameter. Metric gauges are calculated simply by multiplying the diameter, in mm, by 10 and therefore increase as the diameter increases, unlike the AWG standard.
2.5 squre mm
A 6 mm earth wire can be used to replace a 2.5 mm earth wire, but if there is an existing 6 mm earth wire it must be 6 mm all the way to the earth, and not replaced by a smaller wire between it and the earth connection.
300a
one to two mm of aluminium
No, a smaller diameter wire has a higher resistance. The 0.01 mm wire will have 1/100 the cross-sectional area of the 0.1 mm diameter wire, therefore the resistance will be 100 times as high.
1.628 mm
The nearest AWG wire size to 50 sq. mm is 1/0. A 1/0 aluminium conductor with an insulation factor of 75 or 90 degrees C is rated at 180 and 205 amps respectively.