Rcd

[dave1064]

I have a strange fault. I have a split board. 2 rcd's. One keeps tripping but other is fine. I swapped them both and the same happened with the RCD I put in the place of the first one. Rcd's seem to be fine but when installed in that position they trip but are fine when in the other side... I hope that makes sense.

The rcd's are made by sector. They have codes at the bottom where these two rcd's differ. But house next door they are the same... The codes don't seem to be of any importance but if anyone has knowledge on sector rcd's then I'd be happy to hear if these codes have to match.

 

[dazza1981]

Was he a sparks trev??? lol

 

[trev]

Thankfully no mate, solicitor but I did ask if he was a Electrical Trainee

 

[Guitarist]

Tested all circuits All test out perfectly. Found fault. Due to a blown transformer in a elv fan. RCD picking it up where testing did not.

I take it that you disconnected the tranny for testing then?

 

[GLENNSPARK]

Tested all circuits All test out perfectly. Found fault. Due to a blown transformer in a elv fan. RCD picking it up where testing did not.

jesus wept...

 

[GLENNSPARK]

I have a couple from this year in a box of failed parts I keep for interest - one has the N contacts that most times don't quite close, and one that is almost jammed and will only trip maybe 1 out of 10 times when tested. I'd say a faulty RCD is more likely to not trip when it should, than trip when it shouldn't. Again, far more faulty circuits than faulty RCDs.

nah...
more than likely it wont hold...

 

[SJD]

nah...
more than likely it wont hold...

OK, yes - I suppose I sort of contradicted myself with my example anyway.