So I went to do a job this morning for a builder I know. Nowt big, just extending the ring and added a few more lights. When I turned up, the builder said, "we have had a guy in fitting the controls for the new heating system etc and he said you need to tell your sparky to test the earth!!" So I open up a small cupboard where the cu and incomer was. The incomer was an old cast iron type and the arrangement was tn-s. So I opened the cu and dissconected the 6mm main earth. I started the test and within 5 secs there was a spark from where the earth was clamped to the service cable. Obviousley I crapped my sen and dropped the test lead on the floor which resulted in "trip" on my tester. I wasnt expecting that to happen.lol
I thought it may have been down to me not having the test probes connected firmly enough, so after shaking for 5 mins, I decided to try and test it again but this time I was ready, It sparked again and gave me a reading of 4.12 ohms!!
I phoned YEDL, expecting the same old drivvle but to my suprise, they sent someone with in 30mins wow!!! The guy had a look and said he would do his tests and fill in a warning form and that I would have to get some one out and they would PME it and install a new service head. So I left him too it. About 5 min later he came out and said "come and look at this". Were the clamp was around the service cable, there was a hole and you could see the bare line conductor.
He told me he had to remove the fuse and that someone would come out in the next few hours to PME it and sort it out. So a small job turned in to the homeowner having to have a little cupboard ripped out and the service head changed.
Now Im always slateing the DNO but this time I cant complain. Just wonder how long its been like that for!!
Jay
I thought it may have been down to me not having the test probes connected firmly enough, so after shaking for 5 mins, I decided to try and test it again but this time I was ready, It sparked again and gave me a reading of 4.12 ohms!!
I phoned YEDL, expecting the same old drivvle but to my suprise, they sent someone with in 30mins wow!!! The guy had a look and said he would do his tests and fill in a warning form and that I would have to get some one out and they would PME it and install a new service head. So I left him too it. About 5 min later he came out and said "come and look at this". Were the clamp was around the service cable, there was a hole and you could see the bare line conductor.
He told me he had to remove the fuse and that someone would come out in the next few hours to PME it and sort it out. So a small job turned in to the homeowner having to have a little cupboard ripped out and the service head changed.
Now Im always slateing the DNO but this time I cant complain. Just wonder how long its been like that for!!
Jay