J
james beckford
bit of help please guys,
I have a CU with a 40 amp breaker feeding the electric shower, its on 10mm cable.
My calculation is 8500W div by 230V = 36.9A, therefore 8.5 Kw is the largest shower but mate says 40A with 10mm is fine for 10.5Kw.
Does an electric shower class as water heater therefore no diversity allowed or have i missed a trick somewhere ?
Also the 10mm t+e is running in conduit vertically through a bedroom cupboard alongside the 1.5mm 3core interlink cable for the smoke detectors, the installation method closest to it is B but this is not listed in the current capacity tables as a calculated way of running T+E
Many thanks in advance for my no doubt being incredibly dense tonight
I have a CU with a 40 amp breaker feeding the electric shower, its on 10mm cable.
My calculation is 8500W div by 230V = 36.9A, therefore 8.5 Kw is the largest shower but mate says 40A with 10mm is fine for 10.5Kw.
Does an electric shower class as water heater therefore no diversity allowed or have i missed a trick somewhere ?
Also the 10mm t+e is running in conduit vertically through a bedroom cupboard alongside the 1.5mm 3core interlink cable for the smoke detectors, the installation method closest to it is B but this is not listed in the current capacity tables as a calculated way of running T+E
Many thanks in advance for my no doubt being incredibly dense tonight
Last edited by a moderator: