Two conductor and three conductor #12 Teck cables are rated at 20 amps. This size is one over from the 15 amp rated wire. This is because on motor loads the conductor size has to be 125% of the motors full load amps. Since all that was stated is 15 amps it is better to err on the larger size wire.
25 ampers
6mm2 cable is rated at 40amps
A #10 copper wire in a NMD90 cable is rated at 30 amps.
30 Amps
A kw, or Killowatt = 8.7 amps. So, 30 x 8.7 = approximately 260 amps. A wall Air conditioner draws about 12-15 amps. A refrigerator about 10-12 amps, a 100 watt light bulb .87 amps or less than 1 amp. Houses typically have either a 100 amp main breaker or, 150 and up. In the old days, 60 amps was common. Your answer is, as many houses as it takes to use 260 amps. If it's for a generator, as backup, 4-8 houses to keep the required things working. BUT use a large cable to run the power. 260 amp cable is about 3 ought size. Good luck.
25 ampers
Need to know what the voltage of the motor is.
5 amps
Cable for 19 amps continuous should have a cross-section area of 6 mm2.
6mm2 cable is rated at 40amps
A 0.15Cu cable has a rating of 382 amps summer and 476 amps winter. 0.2Cu allows 425/530 amps. That is for outdoor use in overhead lines.
The 240 sq. mm cable has a diameter of 17.48 mm. It can carry up to 425 Amps current in a duct and up to 520 Amps in open air.
445 amps. For example Mulberry AAAC cable.
Current or AMPS are what the appliance draws or load of the appliance. So, if you have a say 10,000 amps going thru a cable rated for say 1,000 amps , guess what ,the cable over heats and either will melt or at least catch fire.
A parallel run of 750 MCM AWG conductors will handle 1000 amps. if we want 1000amps to flow, 250sqmm cable is enough.
44.8AMPS
A #10 copper wire in a NMD90 cable is rated at 30 amps.