The main bonding is different; that has to be part of the job.
The other things would be discovered during the CU change and can be dealt with acccordingly.
Shared neutral circuits can be connected to one MCB/RCBO.
Unsatisfactory Zs would be safer with RCDs/RCBO.
Metal light switches could be replaced with stock parts.
Unsatisfactory IR may be determined by a quick global earth leakage test.
Crumbling VIR is unlikely to be unexpected.
I am not saying that these things should not be discovered and rectified but all will be less dangerous with a new CU, presumably being changed to include RCD protection.
My query is that a virtual EICR be carried out and then everything put back and the CU changed, when, tomorrow, next week?
You said "I would hope a lot more of a decent electrician, and personally would not consider employing one whose pre-CU-change I&T was restricted to "ensuring that ADS will operate as intended"".
I assume that means at a prior time to determine if a new CU can be fitted.
Edit - just corrected typos.
The other things would be discovered during the CU change and can be dealt with acccordingly.
Shared neutral circuits can be connected to one MCB/RCBO.
Unsatisfactory Zs would be safer with RCDs/RCBO.
Metal light switches could be replaced with stock parts.
Unsatisfactory IR may be determined by a quick global earth leakage test.
Crumbling VIR is unlikely to be unexpected.
I am not saying that these things should not be discovered and rectified but all will be less dangerous with a new CU, presumably being changed to include RCD protection.
My query is that a virtual EICR be carried out and then everything put back and the CU changed, when, tomorrow, next week?
You said "I would hope a lot more of a decent electrician, and personally would not consider employing one whose pre-CU-change I&T was restricted to "ensuring that ADS will operate as intended"".
I assume that means at a prior time to determine if a new CU can be fitted.
Edit - just corrected typos.
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