specific rcd tests

[mswesty]

hi i have a customer whos rcd trips sporadically.
maybe twice per month
its been going on for 12 years!
customer has had enough.

1 ring down
2 ring up
3 cooker
4 shower
5 garage

no damp walls
no known damage to cables
no specific time of day

fridge is approx 12 years old

i know the normal tests
rcd ramp
rcd x1 x5 x.5 etc
r1 rn r2
ins resi

do you guys use any specific rcd tests to establish where the fault lies?

cheers in advance

 

[Sparky Ninja]

Get an earth leakage clamp meter and test the appliances. I would start with that 12 year old fridge, it might have something to do with that 12 year old fault?

 

[Sparky Ninja]

you could try something like this..

[video=youtube;5hL13UjRSoY]http://www.youtube.com/watch?v=5hL13UjRSoY&feature=related[/video]​

 

[telectrix]

could always try a PAT on the fridge if e/l clamp meter not availabe.

 

[tony mc]

I take it you have done the tests and the RCD and IR tests are all good.