thanks for all the replies. I believe it is a tt system as there is just the live and neutral entering the main cutout fuse. i thought tt system came from over head power lines but it comes from underground into the house. Would the electricity board convert it to a pme if contacted? thanks martin
thanks for the reply, is it ok for the zs values to be higher than the max zs for the mcbs as long as the circuits are protected by a 30mA rcd? also fitting a 17th edition consumer unit and upgrading the bonding.
Hi there, this is my 1st post so please be gentle with me please. I am a stage lighting engineer so havent much experiance with domestic wiring. I have a tt earthing arrangement and the only earth it has is to the gas and water main bonding so i have installed an earth rod which has brought the ze d...
