18 flats wiring
- Thread starter Sid1968
- Start date
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Surely the first question is to ask the fuse rating in the cutout?
The usual questions to start:
- what size are these flats
- what's the loading for each flat
- all electric or is gas/other present
- where will metering be located (basement or in each flat)
- what's actually been supplied by the DNO (or will be supplied)
- where does DNO equipment end, and BNO equipment start
- what provision for EV charging will there be
You will need the written specification for the new supply, not just what fuses may or may not be present.
- what size are these flats
- what's the loading for each flat
- all electric or is gas/other present
- where will metering be located (basement or in each flat)
- what's actually been supplied by the DNO (or will be supplied)
- where does DNO equipment end, and BNO equipment start
- what provision for EV charging will there be
Have you done any commercial installations before?
Is that a fuse carrier with 100A on it, or actual 100A fuses?
You will need the written specification for the new supply, not just what fuses may or may not be present.
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Well understandable if no gas I guess
A likely option would be (for each flat supply) a metal enclosure with DP isolator, 63A fuse and at least 1 spare space for an MCB which could be used in the future for an EV charger, with 3 core 16mm² SWA from that to the flat.
Landlord supply to a suitably sized consumer unit.
However does depend on exactly what will be in each flat. Stored hot water would be preferable to electric showers or other instant water heaters.
Landlord supply to a suitably sized consumer unit.
However does depend on exactly what will be in each flat. Stored hot water would be preferable to electric showers or other instant water heaters.
I would say the best way is to have the meters in the basement as planned, and get the DNO to run their own cable from here to their own cut out thingy in the flat.
You will need to run ducting in for them though.
Probably too late now if they've already fitted some equipment, so you've probably got 18 flats worth of faffing about +1.
You will need to run ducting in for them though.
Probably too late now if they've already fitted some equipment, so you've probably got 18 flats worth of faffing about +1.
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I was thinking that, in the past I thought they run a concentric type cable to each flat and fitted one of them special Non fused cut outs, Red colour I recall.
Not sure normal Electricians would be allowed to do that themselves would they, are they even allowed to use that cable, the type including seperate Earth maybe,
Pretty sure we cannot use the Live and Neutral stuff as its forbidden for Non Dno to combine the Neutral and Earth, I believe.
AIUI Straight con has not been a suitable cable type for normal installation work for a very long time if ever. Split con would have been fine under the 16th, but since the live conductor is not fully surrounded by conductors designated earth it's not suitable for non-RCD protected concealed cabling under more recent regs.
No, but presumably would be ok if designed and installed by DNO.
But it sounds like it's too late now.
But it sounds like it's too late now.
I'm a bit confused by that - I thought that DNOs would not get involved with anything on the consumer's side of their cutout, let alone on the consumer's side of the meter?
Kind Regards, John
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