High TNS readingssssss

[Nigel]

Looks like it was never installed correctly unfortunately.

In this instance I would code it as a C2 and quote to install a 500mA RCD for fault protection for the circuits that do not meet the maximum permitted Zs via the MCB.

Remember the RCD will need to be installed at the supply end of the cable.

No need to TT it and make the earth even worse.

 

[Bobster]

Looks like it was never installed correctly unfortunately.

In this instance I would code it as a C2 and quote to install a 500mA RCD for fault protection for the circuits that do not meet the maximum permitted Zs via the MCB.

Remember the RCD will need to be installed at the supply end of the cable.

No need to TT it and make the earth even worse.

What was it you disagreed with in my posts Essex?

 

[Pete999]

Pete's off Buzz?...……..so buzz off Pete!

UKZzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzoff

 

[Nigel]

What was it you disagreed with in my posts Essex?

I think you made assumptions with not enough information and I also do not think it is time to quote to do the job properly.

 

[davesparks]

In this instance I would code it as a C2 and quote to install a 500mA RCD for fault protection for the circuits that do not meet the maximum permitted Zs via the MCB.

This is only viable if the problem is not degradation due to damage to the underground cable.
Proper testing needs to be carried out first rather than the clutching at straws and repeated EFLI tests that appear to be happening.

I wouldnt be entirely surprised if it turns out the op is getting poor results due to using a low current test.

 

[Charlie_]

This might seem a bit unorthodox but I always like to find out what the actual problem is before coming up with a solution

 

[Nigel]

This is only viable if the problem is not degradation due to damage to the underground cable.
Proper testing needs to be carried out first rather than the clutching at straws and repeated EFLI tests that appear to be happening.

I wouldnt be entirely surprised if it turns out the op is getting poor results due to using a low current test.

The op has stated that the EIC was over the max Zs anyway. It was never installed correctly so some sort of change is required to meet max permitted Zs.

 

[Nigel]

I do agree that more testing should be done but what we have been given the advice is sound IMO.

 

[Nigel]

This might seem a bit unorthodox but I always like to find out what the actual problem is before coming up with a solution

The problem is Zs higher than the maximum permitted for the OCPD installed.

 

[Charlie_]

The problem is Zs higher than the maximum permitted for the OCPD installed.

Ok for the more pedantic ones;
I always like to ascertain what is causing the problem first before coming up with a solution

 

[Nigel]

Ok for the more pedantic ones;
I always like to ascertain what is causing the problem first before coming up with a solution

It was never installed right in the first place.

 

[ipf]

It'd be useful to know how old the installation is.

 

[Charlie_]

It was never installed right in the first place.

How do you know that?
Op said he has high Zs readings but has done nothing else testing wise

 

[Nigel]

How do you know that?
Op said he has high Zs readings but has done nothing else testing wise

Because I read all the posts.

 

[Charlie_]

Because I read all the posts.

Yes me too

 

[Charlie_]

No dead testing currently occupied

How did you manage to change glands without switching off the power??

 

[davesparks]

It was never installed right in the first place.

It would be good if the OP could clarify the test results and what they mean by original values. Their other threads recently about this same job make me think these original values refer to the EICR conducted before they started the remedials rather than referring to an EIC.

 

[ipf]

Because I read all the posts.

Come on, my mate. The OP's only posted 4 times, with not a great deal of info......and his last one was at 10am.
We know SFA about it, really.

 

[richy3333]

op- HELLO?????????????? (echo, echo) empty room!

 

[buzzlightyear]

op- HELLO?????????????? (echo, echo) empty room!

padded cell.