I'm a heating engineer and if I was to wire the 10 way box and controls components I would always want to run a cable with the appropriate amount of cores including a earth, I always come across wires where they use the earth as a live wire . Can this be done
Most of the controls are double insulated and don't require a earth but do you need a earth in case you cut through a wire to trip the rcd ??
Thank you
Most of the controls are double insulated and don't require a earth but do you need a earth in case you cut through a wire to trip the rcd ??
Thank you