EICR Help required from some of you testing experts.

[westward10]

Record your findings in the Report, investigate later.

 

[Soulsurfer]

The poor dears these days wouldn't entertain the work involved turning the handle,it would never get up to speed and generate enough umph

I'm old enough we had them at college years ago !

 

[Highresdis]

Best way to locate the high R2 on the ring is to connect only one cpc leg to the earth bar and test for Zs all round. With a continuity result in kOhms, you should see a massive rise in Zs value between two of the sockets, one of which will likely contain the loose connection

 

[Soulsurfer]

Thanks all so far, as I say I tried a solo IR tester before and it still wouldn't ramp up test jolts on a similar nightmare job. Did find a few stashed sockets with built in fridges in back of kitchen units etc.. but thought I had unplugged it all, no client home to check if more still hidden / connected ! Also owner did say 4 different electricians had worked on premises before over the years as so many different extensions / builders had done works and no certs or anything offered for works on electrics before !!

 

[Soulsurfer]

Best way to locate the high R2 on the ring is to connect only one cpc leg to the earth bar and test for Zs all round. With a continuity result in kOhms, you should see a massive rise in Zs value between two of the sockets, one of which will likely contain the loose connection

Thanks, never heard that one before.

 

[Des 56]

I'm old enough we had them at college years ago !

My apology if you thought that was meant for you,it was just old folks banter

Too many problems listed to comment on them all
Next issue is on downstairs sockets, tests r1,rn, fine but r2 relationship 2.5/1.5 ratio is way off ! r1 0.44, rn 0.44, r2 16.8 kOhms !! wtf ?
Thinking nasty connection on cpc somewhere anyone seen similar before ripping apart the circuit.

16,800 ohms will likely be open circuit rather than a nasty connection,that reading should be assessed in conjunction with the insulation resistance test on that circuit,it could be a reading of the cpc s of a open circuit with continuity via any appliances and associated copper pipes

 

[Risteard]

IR was a real pain as the meter did not want to know: @500V L-E max was 1.01 Meg
N-E was 0.36 Meg !
But sure every single thing was unplugged.
Also when tested at 250V the readings all came out approx 25 Meg ! ??

Surge protection?

 

[westward10]

If an IR test at 250v gives a satisfactory result this often indicates a filtering device in circuit, not always but most of the time.

 

[Soulsurfer]

If an IR test at 250v gives a satisfactory result this often indicates a filtering device in circuit, not always but most of the time.

Ah cheers, not brilliant 25 M but better, just need the 500V to comply though. Wonder what items may be hidden somewhere !

 

[Soulsurfer]

Surge protection?

Not a clue but don't think so chief.