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

 

[LlandrilloSpark]

Put an approved test lamp or voltage indicator across line and earth at the socket when energised, that simulates an earth fault and should trip an RCD, a line to neutral fault....IMHO won't trip an RCD

 

[robsparky1975]

Its a long shot but i would disconnect all loads,and reset both rcds at least 10 times and try again,if its been sitting around for a while they might need some help to get them to work properly,it is not uncommon for rcds not to trip even when brand new.

 

[Marie-Claire]

rcd test button

 

[Johnny-G]

no, i don't have the make...

Has it been rubbed off, or have you forgotten it?

 

[Marie-Claire]

yes i mean line to earth lol, sorry my head is swimming with wires

 

[telectrix]

probably some cheap foreign rubbish, made in kazakstan by borat.

 

[Marie-Claire]

i didn't make a note of it

 

[Marie-Claire]

lmao! probably

 

[Marie-Claire]

thanks, i will try that just in case

 

[Silly Sausage]

yes i mean line to earth lol, sorry my head is swimming with wires

I'd forget about it for now and recommend that you go and get your brain swimming in alcohol instead.

I am...

 

[Marie-Claire]

sounds like a good plan !!

 

[kevh]

Try what Robsparky said switch rcd's on and off 10 times they do act up sometimes when they are new. Failing that they must be knackered.

 

[Johnny-G]

i didn't make a note of it

Quick tip No.378
'If you're going to install accessories supplied by a 3rd party at least try to make a note of what they are and use your competency to judge if they're suitable for the intended use'

 

[Sparky Ninja]

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.

 

[telectrix]

in other words, don't hang nettles on the karzi wall.