This is the maximum amount of electrical current (measured in Amperes or Amps) that a conductor can carry continuously under specific conditions without exceeding its temperature rating.
32A Step 2 – Derating factors:
The values below represent typical ratings for single-phase copper cables under standard conditions. For more detailed specifications, you can consult a Cable Size & Current Rating Chart from Stephen P Wales Ltd. Cable Size ( mm2m m squared Single Phase Rating ( Common Applications 1.5 mm2m m squared Lighting circuits, small appliances 2.5 mm2m m squared Power sockets, air conditioners 4.0 mm2m m squared Water heaters, heavy-duty appliances 6.0 mm2m m squared Cookers, showers, main power lines 10.0 mm2m m squared Distribution boards, industrial machines ⚡ Critical Rating Factors cable size and current rating
Engineering standards such as the or BS 7671 dictate specific sizing rules: This is the maximum amount of electrical current