Whats this mean on a rcd test

[Deleted member 9648]

Still splitting hairs then fella's lol.

 

[Deleted member 26818]

Nonsense, if it works it works. The outgoing wiring will not make it trip slower or be less sensitive if it has passed the other tests, what it can do is make it trip faster.

Why assume it has passed the other tests?
In what way could the wiring make the RCD trip faster?

 

[telectrix]

OK. consensus of opinion is to rest with circuits dissed. seen a few RCDs test fine. then connect the circuits, 1 of which has a N-E fault. in certain cases, the RCD will not trip. so, a perfectly functional RCD will not operate in the real world and maybe death or injury results.

 

[Deleted member 26818]

What would be nice would be a consensus of reasons as to why the RCD should be tested with the circuits dissed.
Would it be considered Satisfactory if an RCD operated when tested at the terminals, but failed to operate when tested at a socket-outlet?

 

[telectrix]

What would be nice would be a consensus of reasons as to why the RCD should be tested with the circuits dissed.
Would it be considered Satisfactory if an RCD operated when tested at the terminals, but failed to operate when tested at a socket-outlet?

exactly my point.

 

[Midwest]

what it can do is make it trip faster.

What evidence do you have for that?

 

[Deleted member 9648]

OK. consensus of opinion is to rest with circuits dissed. seen a few RCDs test fine. then connect the circuits, 1 of which has a N-E fault. in certain cases, the RCD will not trip. so, a perfectly functional RCD will not operate in the real world and maybe death or injury results.

Shouldnt the circuit with the N-E fault be identified before it is energised?

 

[Dave OCD]

Exactly right.

 

[VoltzElectrical]

Interesting thread. Did we reach a consensus on this or not? My own opinion still stands by the way, the RCD still needs to operate within the parameters as close to the point of use as possible.

Respect

 

[marc8]

Hi All
just pause for thought here about the RCD test & what you have said, it's says disconnect LOAD.
but if you think about it if you have unplugged everything then really & truthfully you are just using long test leads to do the job as there is no LOAD on the circuit, unless you are taking into account the resistance of the wire in the circuit.
but from a LOAD point of view there is no LOAD, just a pair of long test leads.
we also a while ago answered this & have had RCD units that would not test until we installed a LOAD on them which was bizarre