10mm² twin and earth PVC copper.
The cable must be at least ( S ) to prevent insulation meltdown. For short cables close to a transformer, fault current can be enormous, requiring a larger cable than load current alone would demand.
Cable sizing is critical for several reasons:
[ V_d = \frac(mV/A/m) \times I_b \times L1000 \quad \text(in volts) ]
10mm² twin and earth PVC copper.
The cable must be at least ( S ) to prevent insulation meltdown. For short cables close to a transformer, fault current can be enormous, requiring a larger cable than load current alone would demand.
Cable sizing is critical for several reasons:
[ V_d = \frac(mV/A/m) \times I_b \times L1000 \quad \text(in volts) ]
