R
R1CH-G
Here's the scenario:
Ring Final Circuit
Design Current = 20 Amps
Circuit Breaker = 32 Amps (may well be using an RCBO - but that's another story)
Ring length total (end to end) < 45 meters
Correction Factors - grouping factor of 0.78 (reference method E with 9 other circuits)
Gives an Iz of just over 41 Amps
Where am I going wrong here, as I think wiring the ring in 10 mil T&E is going to be a little difficult!
Ring Final Circuit
Design Current = 20 Amps
Circuit Breaker = 32 Amps (may well be using an RCBO - but that's another story)
Ring length total (end to end) < 45 meters
Correction Factors - grouping factor of 0.78 (reference method E with 9 other circuits)
Gives an Iz of just over 41 Amps
Where am I going wrong here, as I think wiring the ring in 10 mil T&E is going to be a little difficult!