Thank you all for the information. I was trying to get my head around the issue and hadn't thought about it before. I carry out many EICRs yearly and like to look primarily at safety. Although the circuit in question was installed in 2000 and under 16th edition regs no RCD was provided. I didn't see supplementary bonding at the radiator or behind the shaver point but will carry out a lead test between exposed pipework/ radiator and the cpc. At worst I can see it as a C3. Add to that no fan isolators. It's a rental property and there have been no checks carried out over 19yrs as the Landlord feels he can prove it's safe. (I think hes a Jedi knight). The previous tenants installed the cabinet next to the shaver point which has it's own shaver point,lights and demister pad. I believe new legislation next year will force the issue of having inspections carried out.
Can you actually get a RCD on a shaver socket? I would not think so, put the output of a shaver socket to earth and nothing would flow, so there would be no imbalance, so it would not trip a RCD, so it seems rather pointless having a RCD on a shaver socket, and since a shaver socket has an isolation transformer in it, it would not trip any RCD feeding the socket with any of the output connected to earth.
OK would today fit a RCD to protect cables feeding socket, but BS7671 is not retrospective. We still permitted no earth to lights if installed before 1966. As to no fan isolator, well if the fan goes faulty, it could cause the lights to fail, and so being able to switch it off makes sense, then the fault can be corrected at leisure, but that only allows one to switch lights back on, they would still fail, so it would not change safety by fitting one, it would just save landlord cost of hotel until fault fixed.
When I did my 2391 we were taught how to detect a fig of 8 circuit and told it should not be permitted, I never questioned at the time, but since using this forum it has been pointed out it does not actually break any rules, if it is near ends rather than centre it can cause over load, but from centre of a ring final connecting a second ring would not cause an over load, although it could mean testing one thinks there is a ring but in fact it is broken. So one does need to be aware of a fig of 8, but in its self it's not a danger.
Today only EICR is in house, so anything found I don't like I can correct, don't need to convince some one else it needs doing. And because it complied when installed to me does not mean OK today, when Queensferry swing bridge was built knife switches were permitted, that does not mean one can leave them in today with exposed live parts. So it says previous edition, so today that's the 17th, so if allowed in 17th still OK today, but just because allowed in
"Rules and Regulations for the Prevention of Fire Risks
Arising from Electric Lighting'. Issued in 1882."
Does not mean allowed today.
Remember 1992 was when BS 7671 first issued, so complying with THIRTEENTH EDITION Issued in 1955. does not mean it complied with a previous edition of BS 7671 as it did not exist then, so no earth to lighting has never been allowed in BS 7671.
