J
Jabbajaws
Hi All,
I went to my uncle's today to test a socket in the cellar, which he thought may have been damp, due to the presence of mildew on the socket front.
I was preparing to test the cellar socket and randomly plugged my 17th Multifunctional Meter into a socket and performed a Zs. 3.33ohms, which l thought, "Hello".
I performed Zs readings at all the remaining sockets, all above 3ohms. I performed a Zs at the bedroom lightswitch, yet again above 3ohms.
Obviously now this pointed to the main earthing conductor in the cellar.
I performed a Ze at the main board which is pre-16th (No RCD protection). Thought l heard something as l was doing this and put it down to the analogue meter, which clicks on each rotating digit. Got 0.22ohms, which l was happy with for TN-S system.
I decided to perform another Ze, which was 0.36ohms, only this time, l saw a very noticeable spark come from the suppliers earth clamp, which connects the earthing conductor to the supply intake cable (TN-S).
Obviously it would be dangerous to continue with any other live readings, after discoverying this, so ive advised my uncle about the urgency of the situation and told him that l will have to call out the DNO to repair the cable.
Now ive never done this before and havent a clue how to go about doing so. My uncle says that he's with British Gas, if that helps.
How do you go about doing this. please anyone who knows?
Thanks, Jabbajaws :cool3:
I went to my uncle's today to test a socket in the cellar, which he thought may have been damp, due to the presence of mildew on the socket front.
I was preparing to test the cellar socket and randomly plugged my 17th Multifunctional Meter into a socket and performed a Zs. 3.33ohms, which l thought, "Hello".
I performed Zs readings at all the remaining sockets, all above 3ohms. I performed a Zs at the bedroom lightswitch, yet again above 3ohms.
Obviously now this pointed to the main earthing conductor in the cellar.
I performed a Ze at the main board which is pre-16th (No RCD protection). Thought l heard something as l was doing this and put it down to the analogue meter, which clicks on each rotating digit. Got 0.22ohms, which l was happy with for TN-S system.
I decided to perform another Ze, which was 0.36ohms, only this time, l saw a very noticeable spark come from the suppliers earth clamp, which connects the earthing conductor to the supply intake cable (TN-S).
Obviously it would be dangerous to continue with any other live readings, after discoverying this, so ive advised my uncle about the urgency of the situation and told him that l will have to call out the DNO to repair the cable.
Now ive never done this before and havent a clue how to go about doing so. My uncle says that he's with British Gas, if that helps.
How do you go about doing this. please anyone who knows?
Thanks, Jabbajaws :cool3:
