10 second trip

[telectrix]

500V across L and N of the lights usually = flied lice, ( sorry, fried lights ).

 

[james king]

Didn't I r test it.

 

[Pete999]

Tested with megger at switch between live and n.

Jiga What tripped? and what sort of test were you carrying out?

 

[tazz]

Depends how and what you used to test it...?

 

[telectrix]

give up pete. it's like pulling teeth. maybe next week we'll get all the info. to give an educated guess.

 

[rapparee]

Did you break the circuit up into sections to eliminate the faulty light fitting or just do a continuity test from light switch. How many light fittings are on circuit what is the overall load. Is it a new circuit

 

[Pete999]

give up pete. it's like pulling teeth. maybe next week we'll get all the info. to give an educated guess.

You're right, 1st day back at work and I'm sick to death of answering daft questions, is it nice to be back Pete? wtf do you think?

 

[james king]

RCD trips when light switch is turned on. Disconnected light switch and all loads and tested between l and n.

 

[james king]

2 light fitting. Split by adaptable box. Swa cable. The box seems to be damp.

 

[telectrix]

you need to IR test between L ans E and N and E. also there'a a possibility of a shared N if L and N are taken from different circuits.

 

[Silly Sausage]

Me today over my toolbox head butted the customers foot and got a nice carpet burn on my face

Have you ever had that feeling that I really need to be sectioned in the general publics interest?

 

[Richard Burns]

The RCD is tripping because of a fault to earth, that fact that it is delayed is either that the fault is near the limit of the tripping current or that the lights warm up a bit and let the water reach the expanded section.
The lights and all junctions need to be dry to prevent this sort of fault.

 

[james king]

It's not a shared n. Been working for the past year they said. IR test 0mohms between L and N.

Could damp cause it to trip after 10 secs? Why dies it happen after that long. Surly with a short it would trip straight away?

 

[rapparee]

The box seems to be damp.

That was my first hunch. Try and dry it out and see how you get on with ir tests

 

[dingledong]

Have you ever had that feeling that I really need to be sectioned in the general publics interest?

Every day archy ! ! Oh you meant me !
I didnt do it on bloody purpose . It fookin hurt .I'm gonna take me Zimmer frame to work now