Testing RCBO at Light Switch

[Midwest]

Yeah well, sometimes I do that.
Then again, you still haven’t explained what it is you disagree with Tel about.

I think I have.

 

[Deleted member 26818]

I think I have.

So do you disagree that it’s acceptable to test at the light switch, or do you disagree that the test should be at the out going terminals of the RCBO with everything disconnected?

 

[Midwest]

I'm not saying now (edit 'cos I already have). Just to annoy you.

 

[ELECNEWT]

Telextric, as I understand it, you are saying that testing at the switch is acceptable but that testing at the outgoing terminals is preferable.

Do you think there is ever a case for using both methods?

 

[Starjack]

I always test at the load side of the rcbo with finals disconnected but also like to test at the furthest point ,be that a socket or light etc.

 

[Midwest]

The BEAMA RCD handbook does state in the section for testing by installer;

All tests must be performed with all loads disconnected using an
appropriate calibrated test instrument connected as close to the RCD as possible.

But thats not the same as testing on the RCD terminals.

 

[Starjack]

Also I think some rcds / rcbos actually need short pieces of cable on the load side to get a reading.

 

[Midwest]

Here's one of them aforementioned debates;

RCD Test on lighting circuit protected by RCBOs - https://www.electriciansforums.co.uk/threads/rcd-test-on-lighting-circuit-protected-by-rcbos.114565/

 

[Rpa07]

Also I think some rcds / rcbos actually need short pieces of cable on the load side to get a reading.

That is a lot of faff when , As has been stated, you are testing the circuit to the accessory to check the functionality of the RCD part of the RCBO. Now a ramp test is different and would warrant disconnection.

 

[Rpa07]

Read it for me Middy and give the bare bones - I can’t be bothered and you seem to have spare time on your hands!

Here's one of them aforementioned debates;

RCD Test on lighting circuit protected by RCBOs - https://www.electriciansforums.co.uk/threads/rcd-test-on-lighting-circuit-protected-by-rcbos.114565/

 

[Midwest]

Read it for me Middy and give the bare bones - I can’t be bothered and you seem to have spare time on your hands!

You should read it. Yesterday we had one member agreeing with himself, now we might have one disagreeing with himself.