Faulty Wylex Rcbo

[R G]

Gotta carry out that ramp test and see what it throws up , op says theres been a plasterer involved , anything could have been done to that circuit ,,

 

[GLENNSPARK]

Gotta carry out that ramp test and see what it throws up , op says theres been a plasterer involved , anything could have been done to that circuit ,,

find out what the KA is as well thats its been subjected to...as it may be over its Max for continued service rating..

 

[R G]

find out what the KA is as well thats its been subjected to...as it may be over its Max for continued service rating..

Good point that could be knackered now ..

 

[Meggerman]

Gotta carry out that ramp test and see what it throws up , op says theres been a plasterer involved , anything could have been done to that circuit ,,

Surely that would show up on IR test? Have you had RCBO switched on overnight with circuit disconnected from it?

 

[pete1]

The rcbo tripped the first time with a bang, so double checked that I connected it correctly. Every time it has been switched on afterwards it has stayed on for a few hours with nothing plugged in and then will trip. All terminations are correct and the circuit tested okay, so I am thinking that it must be a faulty appliance or perhaps the rcbo? Thanks for all the replies.

 

[R G]

The rcbo tripped the first time with a bang, so double checked that I connected it correctly. Every time it has been switched on afterwards it has stayed on for a few hours with nothing plugged in and then will trip. All terminations are correct and the circuit tested okay, so I am thinking that it must be a faulty appliance or perhaps the rcbo? Thanks for all the replies.

i Think there was fault on the circuit and when it was livened up the fault has blown apart now leaving an intermittent fault somewhere on that circuit ,,

 

[pete1]

No, I've not tried leaving it switched on with the circuit disconnected. All the appliances were unplugged though and it still trips.

 

[GLENNSPARK]

The rcbo tripped the first time with a bang, so double checked that I connected it correctly. Every time it has been switched on afterwards it has stayed on for a few hours with nothing plugged in and then will trip. All terminations are correct and the circuit tested okay, so I am thinking that it must be a faulty appliance or perhaps the rcbo? Thanks for all the replies.

come on mate....

 

[GLENNSPARK]

hit the circuit at 1000V with the IR tester....do disconnect the RCBO (and any other sensitive equipment) beforehand though wont you....

 

[jaypp]

if only 1st time with 'bang', after 'intermittant', did you check rcbo sat correctly on busbar? (not saying this was cause of 'bang' btw)

 

[HandySparks]

hit the circuit at 1000V with the IR tester....do disconnect the RCBO (and any other sensitive equipment) beforehand though wont you....

Definitely worth a try. If it's intermittent and you can provoke the fault, you've got a chance of locating it.

 

[jaypp]

if testing shows 'nothing', disconnect onward circuit from 1st point and so on

 

[shanky887614]

if testing shows 'nothing', disconnect onward circuit from 1st point and so on

If ir is fine.

Have they painted recently or got new sockets?

I wouldnt be suprised if they wired one of the sockets wrong and thats why its rare it trips.

Wouldn't show up as a short on a test either