Ray Shields

Yes, I've thought about that, and the upcoming switch off of the long wave transmitters to operate the Teleswitch. I have a Tenant moving in on 2 weeks time, so I don't think I'll have enough time to sort it all this time round. Thanks for your advice.

One box has 3 lives going in, the other has 1, if the lives were long enough I would consider putting them in one of those 32mm glands that allow l, n & e tails in, which would solve the problem. But they aren't. Realistically, im going to fix the other outstanding C2s and then go back and argue the case for this one being a C3. If that doesn't work im cheaper getting one of the previous EICR companies to do a new one (and if they try arguing it I can show that they passed it previously). EICR costs, £175 ex vat here.

Yes it's a rental so can't have any C2. I had 6 C2s, I agree with them all apart from the neutral one which I feel is a C3. Does the hacksaw slot work when they are all neutrals? I thought it was if one was live, one was neutral. Thanks.

The EICR states the inspector noted overheating. I've looked, I can see none.

The inspector quoted 521.5.1 that states for a metal box live and neutral must pass through the same hole to stop eddy currents causing heat. So basically he says each neutral must come through each corresponding live hole in the rear.

Pics posted, sorry thought I had. There is just one neutral coming through, distributed via Henley block, suppose they couldn't fit 4 live and 4 neutral meter tails (so just put through 4 live and 1 neutral.) through the brick wall hole from the meter box to inside CU. Lives come in the rear.

2 consumer units in side, note the neutrals going in top, the lives go in the rear. Top CU is for normal rate bottom one for all heating and timed supplies

Sorry, I attached photos or so I thought. Meter cupboard in outside of building

My flat has an old SSE THTC setup. Basically one meter (on the right) feeds the top CU (both are metal) which covers all the sockets, lights etc. The Radio Teleswitch on the left supplies permenant power to the water heater and 4 convectors. There is also a permenant supply to a Heater Boost button for heating up hot water quicker. The Teleswitch also tops up at various times 3 storage heaters. So, 4 different live feeds. I recently had an EICR done, it has been given a C2 (521.5.1) because there is one neutral which goes through from the meter box onto a Henley block and then 4 feeds into the CU in the top. Thus live and neutrals not going through the same holes, classed as a C2 as the lives come in through the rear of the CUs. To sort this I suspect the Henley block will have to go back to the meter box and the 4 neutrals then follow the live cables in through the rear of the CU. Not sure there's enough hole space to allow this. My question, though, is that this is an original installation from about 25 years ago, it must have passed its initial installation certification. The last EICR I had done was in 2017, and it did not fail on this, not even a comment. When did this requirement first appear, could it be that this was legal at the time but not now (if so this is a C3, not to current spec). Could the electrician feed one neutral into the lower CU and daisy chain it across the 3 MCB/RCD? If so it would mean only one new additional neutral fed from meter box rather than 3.