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Replace patress with a conduit entry one and fit 20mm white plastic conduit, two female adapaters, and saddles as required. If you want to keep the exposed twin (why?) then replace patress with the same type and take the knockout out properly - cut each side of the section you want to remove...

I've had some strange co-incidences,remember I once went to a housing association job (I think) once, and I'm struggling to remember the exact issue, but I think it was something like the living room lights smell of burning and they were some brass things with cloudly glass panels... only it...

Its frightening isn't it, remember that its two decades now since the new colours came in, I referred to a cirucit as something like '6-Yellow' the other day and got a WTF look from the final year apprentice, and had to explain about the old phase colours, and then I had the realisation that he...

No where as near as bad as the firex smokes though - now they really did yellow something chronic! I wonder if anyone has ever tried to convince an apprentice that the older Tan coloured Merlin Gerin boards (pre 2004 ish) were once the magnolia colour of the newer merlins and the current...

They are a resonable budget brand. Top money would be schneider acti-9 stuff , now it wouldn't be for me to say if the premium you pay would translate into better quality....

I thought it fed an EVSE? But how are you going to isolate it from the incomming electricity supply? Possibly - but err, not really; I've just looked more closely, they looked to be bigger than that, so I didnt look too closely, but now see that they are 4mm singles in pvc oversleeve, which...

RCD type symbols: https://www.cef.co.uk/catalogue/products/4946310-32a-double-pole-2-module-b-curve-10ka-30ma-type-a-mini-rcbo Do you have anyway to isolate it?

Type B RCD is a little misleading - Thats a double pole RCBO, the RCD part of which is type A, and the Overucrrent part is a Type B/B curve 32A. How have you proved that it is faulty?

Yes, and don't tell them you have had the cut out apart, and don't do it again, the supply cable upstream is likely fused at circa 400A at the transformer fuseboard. So f***ing up or slipping would result in a very big bang indeed!

If its quite a sizeable gap between plasterboard and brickwork then a few loops of all round band screwed and plugged to the wall is another solution https://www.toolstation.com/all-purpose-fixing-band/p24536

You mean its a 3core cable with an approx 10mm overall diameter? You can find specification tables on manufacturer websites https://www.doncastercables.com/cables/6/26/SWA-and-Mains-Distribution/XLPE-Insulated--PVC-Bedded-and-Sheathed--Steel-Wire-Armoured-Cables/ But even 1.5mm² 3core is shown...

Can the readings obtained through the home mini be used for billing then? I was never sure, I did wonder if the mini was only to provide data to the app as an alternative to the IHD (when I had my smart meters done last august, I was offered IHD or mini), I didn't know if there was some...

1. If you envisage more than 63A feeds being needed, then best option is what the manufacturers often call a 'hybrid board' Hager and MEM do them, where you get a couple of TP ways at the bottom that are rated to 125A and taking physically larger breakers (each pole is 27mm rather than 18mm)...

As above, but you should also be aware that a lot of places use the term INSTALLATION TESTER as a synonym for multi-function tester see here for example: https://cpc.farnell.com/megger/mft1735/multifunction-tester-3-phase/dp/IN09209 , its not a term I particually like because it looks too much...

Nah, too busy thinking wondering about CFL lamps, vintage photography processes and the amount of relay logic that old jukeboxes and pinball machines had....:D

Thats why I shouldn't reply when I'm tired.... fixed

I think you'd best post a picture, Red and two blacks with no CPC would be a *very* unusual cable. A CPC has been required at every point since the 14th edition regulations came in in 1966, so a '73 house shouldn't have cable without one.

Theres also Julian date format. Nothing to do with Julian vs Geogorian Calenders, before someone brings up the orthadox church, or Russians missing the olympics..... CYYDDD Century being 0 for 1900s or 1 for 2000 YY being a two digit year and DDD being the day of the year. So today would be...

Looks like red FP used to supply the intruder alarm to me, very roughly installed, likely by the alarm guy! No - You're thinking of MCBS to fit in an old wylex standard unit, which provide overcurrent protection in a slightly more convienient way than re-wireable or cartridge fuses, they do...

Thats clearly a base from a zoned fire alarm system, not a domestic smoke detector, and it seems its been connected with break on the neg rather than pos. What fire panel is this on? (picture please) and what detector head have you removed and what are you replacing it with? I'm assuming this...