RCD's wont TRIP!

[Marie-Claire]

I changed a distribution board on a TT system to a new one but both RCD's won't trip when i have pressed test. Is it possible both RCD's are faulty? Everything is installed correctly

 

[Deleted member 26818]

The 'kettle test'?
Is that the same as the tried and tested 'bang test'?

 

[Marie-Claire]

maybe you need to get an electrician in :yesnod:

im not on this forum because im a hairdresser mate :frown2:

 

[Marie-Claire]

a Fit lass like thats probably got better things to do on a saturday night mate. I remember when i used to have a life.

i forgot what a having a life is lol

 

[Marie-Claire]

the rcd's were not tripping, they were not going to trip out on the X.5 or the x1 as it was totally obvious they were not tripping under any circumstance. it was a dodgy batch for sure. putting the new ones in that tested immediately told me they were faulty

 

[Marie-Claire]

The 'kettle test'?
Is that the same as the tried and tested 'bang test'?

If i can't get a cuppa, that indicates there is something is seriously wrong with the electrics lol

 

[Marie-Claire]

So you pressed the test buttons on the 2 new RCDs and it's a good-un!!

So absolutely no need to conduct the stipulated RCD tests at X.5, X1, and X5 then right?? Maybe none of the others tests either, as you have never mentioned any kind of tests, apart from voltage, and the Kettle test!!!

the rcd's were not tripping, they were not going to trip out on the X.5 or the x1 as it was totally obvious they were not tripping under any circumstance. it was a dodgy batch for sure. putting the new ones in that tested immediately told me they were faulty​

 

[telectrix]

2 faulty RCDs in 1 board would make me suspicious of the MCBs as well. while you can test the RCDs with your MFT, there is no way you can test the MCBs for disconnection within the specified time, so i'd not be happy with that board at all.

 

[Marie-Claire]

2 faulty RCDs in 1 board would make me suspicious of the MCBs as well. while you can test the RCDs with your MFT, there is no way you can test the MCBs for disconnection within the specified time, so i'd not be happy with that board at all.

Fair comment, i will install a whole new board i think, i was concentrating on the problem being the rcd's, it never crossed my mind that the mcb's may be faulty too. thanks

 

[Des 56]

If she tried the test button first as many electricians may very well do

If it didn't function,then whether the x1 and x5 tests were carried out or not would make no difference to the conclusion that they were faulty,the operation of the test button is also recomended test

Maybe she had made that decision and further meter tests were not required for that decision to be final

 

[Marie-Claire]

If she tried the test button first as many electricians may very well do

If it didn't function,then whether the x1 and x5 tests were carried out or not would make no difference to the conclusion that they were faulty,the operation of the test button is also recomended test

Maybe she had made that decision and further meter tests were not required for that decision to be final

totally babe

 

[nikmet]

If she tried the test button first as many electricians may very well do

If it didn't function,then whether the x1 and x5 tests were carried out or not would make no difference to the conclusion that they were faulty,the operation of the test button is also recomended test

Maybe she had made that decision and further meter tests were not required for that decision to be final

Looking at her pic.....errrrr....i mean reading her diagnosis of the fault,,,,,,,,,,,and being thoroughly professional of course, i need to get there and check it out myself asap lol

 

[Engineer54]

the rcd's were not tripping, they were not going to trip out on the X.5 or the x1 as it was totally obvious they were not tripping under any circumstance. it was a dodgy batch for sure. putting the new ones in that tested immediately told me they were faulty​

RCDs come with many faults and symptoms of faults. A very common fault, is that an RCD device can perform well and pass all such RCD testing, but will not trip on pushing the test button on the device itself!! So not so totally obvious at all!!!

Another very common fault, is RCD devices will trip by pressing the test button, but won't trip under testing, or that the trip times a well outside acceptable limits!! ...That's why we ''Test''​

 

[Sparky Ninja]

Warning, smug mode ON!

It always amuses me when a female electrician asks a question there is a very quick respones and I suspect 99.9999% of those are males.:29:

my one and only post..

Have you got a spare RCD of your own you could temporarily swap and try? If you don't know the background of the equipment it could be counterfeit.

and Tony..

This really is looking like counterfeit equipment. Two failed “brand new” RCD’s doesn’t bode well for the reliability of the gear in the rest of the board.
As someone said you leave yourself wide open if something goes wrong further down the road.

problem turned out to be..

Hi guys, thanks for all your advice. The RCD's were faulty, both of them!! I put some new ones on the board, pressed test and they tripped out instantly (thank god). I would of thought it strange that perhaps one could be faulty but two? whats the odd's? I am so glad it's sorted now and i have all the circuits connected. This forum is fab!!

I THANK YOU VERY MUCH

:rockon:



Smug mode off..

 

[Octopus]

What make is the CU?????????????

 

[electromonkey]

What make is the CU?????????????

Sound like it's a Whylex ;-)

I'd change the whole thing.