RCD test

Would have thought that the fan switch should have been closed when performing test Fanzone?

 

200ms on x1, I think?

 

Leaving aside your question for a second an RCD is not supposed to be tested at the end of the circuit. It is the device you are testing and not the circuit. Ideally test at the terminals of the device with final circuit conductors disconnected.

 

I plug my rcd tester into sockets and stuff sometimes Mr R..and sometimes use SL16 lead with it.

 

As Risteard says, it is only the device that youa re testing.
If you leave wires connected to the RCD, then there may be earth leakage on these attached conductors and this will skew/scrog/invalidate any tests that you are doing.

 

My Robin RCD trip time tester instrument comes with plug and iec connector - you plug it into sockets and do the trip sequence..I also purchased SL16 test lead for it, and have never had spurious readings (all readings within stipulated trip time parameters)

 

What if the circuit wasn't connected with an RCD up-front, but you thought it was? Testing the RCD 'solo' proves nothing about the circuit it should be protecting.

 

Blowed if I understand any of it. I've always tested at socket and other positions, and never had a problem.

 

On an rcd test it's the rcd itself that is being tested, not the circuit that it's supplying!

 

I think I understand Sen. You test the rcd directly to prove it works properly. So you test the eli, and continuity, and ir - and as long as these pass then the rcd must operate correctly?

 

What tester are you using out of interest? Are you sure your connections are OK?

 

So why on an EIC is there any need to record the disconnect times for each circuit?
You could just test all RCD's once on the board without connecting anything, regardless of which circuit their eventually supplying?

 

I think I will carry on as I have always done it..but will also test rcd directly before plugging in tester to various parts of the circuitsl

 

I think that maybe to allow for rcbo's longboat

 

Yep, with the circuit still connected.