Crabtree main switch tripping

[piz]

Hello all,
I have been to a property with a crabtree starbreaker board main switch is 80A 30ma rcd.
The customer thought the dishwasher was tripping electrics I teste IR when I tested RCD it tripped on times half!
I have ordered a new one but when the breaker is turned off for the PV the rcd no longer trips, Would this be a PV fault been insalled over a year can we test them? (PV)
why would it trip if only feeding power in

Cheers

Read more: http://www.electriciansforums.net/electrical-tools-products/66836-pv-tripping-rcd.html#ixzz2Ax62UGDp

 

[SPARTYKUS]

You've got to find the fault, an RCD detects an earth leakage so what IR test have you done? All circuits? If so what are other circuits? Did you check N-E and L-E.

When testing RCD and it tripped at x half, did it have any loads connected or was it stand alone?

You need to have a logical plan & gradually elimate sections of the installation.

 

[SPARTYKUS]

Ps

Was a bit silly IMO installing the Pv along with everything else under a 30mA mainswitch, I would have liked to think he/she could have been a bit more inventive!

 

[piz]

Think all sorted now IR l/e 675 meg n/e 720 l/n 674 new rcd and all good but thanks for your help

 

[SPARTYKUS]

Just a dodgy Rcd then

 

[telectrix]

Just a dodgy Rcd then

now go and wash your mouth out with soap. RCDs never fail, they are the gift of God. NOT. :90::ciappa: