Charging EV's important info.
Discussion
Method B isn't Clipped Direct, that's Method C.
Also, a 54 A rating Method B is for 90° cable (59 A for Method C).
70°C equivalent would be 41 A Method B (47 A Method C).
70° C Twin & Earth Method C, is 47 A.
All for 6.0mm² & without any other correction factors applied.
To address the OP's original point, a 32A CPD complaint with BS EN 60898 and BS EN 61009-1, for overcurrent conditions:
From the figures above, for any other installation method or if any de-rating factors are applied to a 6.0mm² 70°C Twin & Earth cable, for a 32A CPD, 10mm² will be required.
The OP's other assertions about starting currents & running hot are simply incorrect. Those things do exist, but not in the context of Fusing Factor in the way he suggests. His posts are misleading & potentially dangerous.
Also, a 54 A rating Method B is for 90° cable (59 A for Method C).
70°C equivalent would be 41 A Method B (47 A Method C).
70° C Twin & Earth Method C, is 47 A.
All for 6.0mm² & without any other correction factors applied.
To address the OP's original point, a 32A CPD complaint with BS EN 60898 and BS EN 61009-1, for overcurrent conditions:
- Must not operate at or below 1.13 x In (36.16 A)
- Must operate at 1.45 x In (46.4 A) within 1 hour
From the figures above, for any other installation method or if any de-rating factors are applied to a 6.0mm² 70°C Twin & Earth cable, for a 32A CPD, 10mm² will be required.
The OP's other assertions about starting currents & running hot are simply incorrect. Those things do exist, but not in the context of Fusing Factor in the way he suggests. His posts are misleading & potentially dangerous.
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