Loop Impedance Testing - Strange fault code

[Midwest]

never had a moment's trouble with my 1553.last time it gave a silly reading, refused to carry out a Zs, the earth in the property was floating @ around 140V, due to a loose connection N-E in the service head. rang DNO and was told to fix it myself as they could not attend till next day. this meant cutting seals and pulling fuse to release the cover over the N-E.

Hmmm, I was thinking about the service head connection. The property had a CU fitted about 15 years ago, and not very well. But with both tests I did, got good Ze readings. When I go back next week, I might just check it. Cheers

PS was even thinking of contacting DNO, to check their supply, having read here of duff connections, t'other end of their cable?

 

[telectrix]

in the case i mentioned, i tried to get a Ze. MFT said NO. then coughed up 66 ohms, then O/R. all down to the N-E link needing a turn of the screws.

 

[Midwest]

Got acceptable Ze's, but can't explain yesterdays strange codes, so will take a shufty at the connection, and speak to the DNO after that.