Please can anyone advise me on this. I have got a consumer unit to change and found that there is no earth as such. Inside the c/u a wire has been strapped from the neutral block to the earth block. I know TN-C-S is a similar format,however the neutral and earth are connected at the distributor's cut out not the c/u. An earth spike is not possible, can any one advise me on this matter.I am part p qualified,its just this is the 1st time i've come across something like this.
Many thanks in advance.