Currently a 2 x 3kW hot water cylinder has been installed.
Originally it was on a radial 2.5mm cable with a 16a MCB. This tripped after a few minutes.
Electrician has been in to fix it.
It is now on a 20a MCB which has not tripped yet. However the cable is very hot.
6kW draws about 26amp which is too much for a 2.5mm cable in conduit.
Also 20amp MCB could be a problem.
Solution may be to run a thicker cable, it's about a 4-5m run. And up the MCB.
As an alternative could the radial 2.5 be turned into a dedicated ring with a second 2.5 cable run from same MCB to the first 3kW element, the second element spurs of the first. The MCB could be uped to 32a?
Originally it was on a radial 2.5mm cable with a 16a MCB. This tripped after a few minutes.
Electrician has been in to fix it.
It is now on a 20a MCB which has not tripped yet. However the cable is very hot.
6kW draws about 26amp which is too much for a 2.5mm cable in conduit.
Also 20amp MCB could be a problem.
Solution may be to run a thicker cable, it's about a 4-5m run. And up the MCB.
As an alternative could the radial 2.5 be turned into a dedicated ring with a second 2.5 cable run from same MCB to the first 3kW element, the second element spurs of the first. The MCB could be uped to 32a?