No earth on ring main.

[Engineer54]

If hes unsure of there being an earth in the circuit, i wouldnt be carrying out a Zs test, earth continuity check would be my preference, injecting 25A into a circuit with no earth is dangerous.

Can you explain that one to me??

 

[KAS1]

I think he means if his conduit is not earthed he'll be applying 240v to the conduit when he preforms his test and if someone touches the conduit at the same time, they will in effect make the circuit to earth causing a current to flow through their body to earth. I think lol

 

[telectrix]

and me. if there is no cpc, there will be no current flow L-E, so 25A is irrelevant.

 

[telectrix]

I think he means if his conduit is not earthed he'll be applying 240v to the conduit when he preforms his test and if someone touches the conduit at the same time, they will in effect make the circuit to earth causing a current to flow through their body to earth. I think lol

don't think my tester pushes out 240V on a Zs test. :shout:

 

[KAS1]

He could be testing at the back of the socket with the test leads connected to L N and crocodile clip on the metal back box

- - - Updated - - -

true my mistake

 

[KAS1]

That was a load of carp I just posted .............. lol

 

[telectrix]

we all make mistakes, as the hedgehog said, climbing off the bog brush.

 

[benji]

i think the 25a refered to is from a high current stand alone tester (like a clare)

 

[Engineer54]

i think the 25a refered to is from a high current stand alone tester (like a clare)

So you don't think a ELI tester provides 20/25A into a test then?? I'm afraid you'll be wrong, they do!!


The Clare testers are used to test continuity integrity on conduit and other metallic containment systems etc...

 

[Lee Marshall]

class 2 sockets, is that a normal three pin socket with insulation tape over the earth terminal?...just gotta remove the top pin from the plug

 

[oldtimer]

We still talkin about this ?