T
ted26
Does anyone know the maximum cable length that can be used for a ring circuit using 2.5 t+e with a 32amp breaker?
for what method of installation and at what ambeint temp...
THe OSG quotes 176M for a type B 32A mcb in a 4mm ring. Doesn't give a figure for a 20 A breaker. Could be even slightly larger for the 32A as the Ct factor might be reasonable as the loading would be relatively small for it. Might have a go at calculating it tomorrow - don't hold your breath mind - JUD is probs one of the best for giving you an answer if he reads this.