MWC for changing MCB's to RCBO's

[Mikegh]

Just a few quick questions

The EICR has not been signed, is this not required?
Installation is further inspected & tested: following remedial action
I thought this was a time period up to the maximum allowed per legislation?
Testing the RCD RCBO’s requires power, so they could test them anywhere to get the trip times as long as they’ve got power?

Many thanksw

 

[Mikegh]

What do you mean test them anywhere ?

 

[Mikegh]

What do you mean test them anywhere ?

I'm not familiar with bs6761, don't work in uk

So in theory I suppose you can test them anywhere to determine they're operational

Actual test results would only be valid for the board in which they're installed

 

[Dartlec]

Just a few quick questions

The EICR has not been signed, is this not required?
Installation is further inspected & tested: following remedial action
I thought this was a time period up to the maximum allowed per legislation?
Testing the RCD RCBO’s requires power, so they could test them anywhere to get the trip times as long as they’ve got power?

Many thanks
B

Yes the EICR should really be signed, although with electronic documents it can get a little murkier - the main thing is that the inspector is clearly identified I would say - so the 'signature' is more the person, their position, etc - as long as that is clear then the document is likely valid - though I'd want one with a signature if I was the client.

The PRS scheme says 28 days I believe before any C2s or C1s should be addressed, although there is quite a lot of leeway at the moment given the pandemic, so no-one is necessarily enforcing that. The wider regulations give no such time limit - Some remedial work is more important than others.

Technically, the installation does not need to be reassessed - just the remedial work carried out and suitably documented (The legislation doesn't mention anything specific, just documented proof that it has been done - in most cases that will be a certificate or similar for the work carried out.)

It's usual where the original inspector has done the remedial work for them to reissue an updated EICR, although it is not necessary to do so. It usually saves confusion though, since all anyone ever looks at is the 'satisfactory' rating on the first page.

My view would be that the RCBOs should be tested in situ rather than elsewhere, as the Installation characteristics may affect their operation. Where I've done it I've rigged a temporary supply from the permanent live to the off peak consumer unit to be able to do it...

 

[Risteard]

0.3 ohms Ze does not tally with pscc of 3kA

Ze is only related to PEFC (and not even directly as PEFC will include parallel paths) - not PSCC.

 

[loz2754]

Ze is only related to PEFC (and not even directly as PEFC will include parallel paths) - not PSCC.

Oops

 

[Boat_Boy]

Thanks everyone for your advice and guidance.
I'll get back to them about it and hopefully get a positive responce.

Many thanks

B