High Ze

[New2Game]

Just checked ELI for a friend. Everything fine exept ELI on Sockets. They were;

Hall 1.4
study 1.3
Bed1 1.3
Bed2 1.2
Lounge 0.7

Its run on a ring in 32A type b MCB so should be below 1.2. Does the fact its 0.7 in lounge then goes up considerably indicate loose wire? What else could be cause?

 

[Spark123]

I take it you used an EFLI tester? Ze is external loop impedance btw , you mean Zs?
If you power off and cross connect the L&E connectors at the CU and go around all the sockets checking the resistance are they all very similar? See p33 of GN3 or p69 OSG.

 

[New2Game]

Not there now, but if did that and got diff readings would this indicate loose wire?
Ze is 0.19

 

[RF Lighting]

What is the Ze of the installation?

What is the earthing type?

Have you tried an end to end ring continuity test?

 

[New2Game]

TN_C_S system. End to end continuity showed continuity but can't remember reading now, will have to check it again