One of our white goods engineers called me out to a job the other day because he noticed a high ELI on the socket circuit his machine was being installed on. Anyway he asked me to check it out so the first thing i did when i got to the property was to do a Ze. When i got there on the TN-C-S system the Ze was 10.14 ohms. I proceeded to call out Western Power to check this out and I waited in for him to see his verdict. He confirmed that it was indeed a TN-C-S system as sometimes as you know people try to create their own PME 
. He said it was reading fine to him so he stripped out the tails at the cut out and reconnected and tested again. He got a Ze of 0.78 ohms now and said there ya go all it was was a loose connection. But when i questioned him as to why he seems to think a Ze of 0.78 ohms on a PME system was he said oh its fine we allow up to 0.8. I told him that i think he is getting confused with TN-s gbut he confirmed to me that they definitely allow up to 0.8 ohms on a PME.
All i did was to fill in a minor works form for the circuit i tested with all the test results etc and note down the job reference that western power gave me when i called them out in the notes.
Is what I have done ok? Now I know that I am right in saying the results were wrong byut what can I do when they wont change a thing because they insist that it is correct?
. He said it was reading fine to him so he stripped out the tails at the cut out and reconnected and tested again. He got a Ze of 0.78 ohms now and said there ya go all it was was a loose connection. But when i questioned him as to why he seems to think a Ze of 0.78 ohms on a PME system was he said oh its fine we allow up to 0.8. I told him that i think he is getting confused with TN-s gbut he confirmed to me that they definitely allow up to 0.8 ohms on a PME.All i did was to fill in a minor works form for the circuit i tested with all the test results etc and note down the job reference that western power gave me when i called them out in the notes.
Is what I have done ok? Now I know that I am right in saying the results were wrong byut what can I do when they wont change a thing because they insist that it is correct?
