Armoured Cable Size Calculator 💯

The calculator requires the following user inputs:

This is often the most underestimated factor. The longer the cable, the higher the resistance, and the greater the voltage drop. When calculating length, always measure the actual route (around obstacles, up walls, etc.), not the "as the crow flies" distance. armoured cable size calculator

70mm² Cu XLPE = 269A (Ref method D, buried). Step 2 (Corrections): Ca=1.04, Cg=0.85, Cc=0.9 → Iz = 269×1.04×0.85×0.9 = 214A (≥150A OK). Step 3 (Vd): mV/A/m for 70mm² = 0.57 mV/A/m → Vd = 0.57×150×120/1000 = 10.26V (2.56% < 5% OK). Step 4 (Adiabatic): Smin = √(10,000² × 0.4)/143 = 44.2mm² → 70mm² OK. Conclusion: Recommended size = 70mm² SWA Cu/XLPE . The calculator requires the following user inputs: This