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So I know why it is done, where it is done and how it’s done, and when it isn’t required, but I’m yet to see a scenario where there is shock danger in a typical bathroom in a dwelling provided a) the main bonding is in place and b) the CPC’s of all circuits are connected together in the CU (as...

I have a veritas mains hard wired panel, keypad, with 3 PIR wired sensors and SAB pretty standard, but now have pets and wish to add some door contacts and disable tthe PIR's. to avoid false triggers As far as I can see the route would be to add Texecom Ricochet Wireless Expansion Kit and then...

Hi, I’m wiring up an alarm, I’ve had in a box for years but don’t have the wiring diagram for the bell box. The terminals are Stb - Trig - Hold off - Hold off + Rtn - The panel is a Texecom R8 with SAB terminals A 12V B switched -ve activate sounder C -ve tamper return D perm neg supply 0v S...

Hi all, as I’m getting more frequent enquiries to install EV charging points, I’m considering upgrading my test equipment- EV adapters for MFT seem to be in region of £400 but even then unless you get the latest MFT you can’t test the 6mA DC functionality within the EVCP . How many of you are...

If an EV charge point has sufficient RDC-DD integral RCD protection, my understanding is that this can be supplied from a non RCD circuit provided the installation method is deemed appropriate, e.g SWA. The regulation (722.531.2.101) requiring every charging point to be double pole RCD...

The roof supports/frame of a plastic keter style shed are not earthed/and not in contact to the ground and not part of the electrical installation. Therefore not an extraneous conductive part. However if fitting luminaires, of which the casing is metal/conductive and earthed directly to this...

Well trodden debate in terms of say hot tubs or outbuildings where the origin is a TN-C-S, the general consensus rightly or wrongly is to not “export” the PME to the load side and instead “TT” it. However when the supply is via an SWA cable this raises the issue of the armour/glands becoming an...

Hi I need to supply power /DB2 to a shed AKA summer house at 35M from house which is straight forward enough, however the customer also wants a twin s/o in the garden halfway. Rather than bring a cable back from DB2 (or another cable /circuit from DB1) I am considering putting the socket midway...

Never seen this cable before but did an EICR on an apartment today and did a double take when the neutral supply into the CU consisted of 7 1mm singles . Furthermore the Earth was 4 2.5 mm singles. The line conductor was 10mm single. Obvious first reaction was that Sparky had run out of 10 mil...

West Mids (coventry) large 2 bed bungalow complete rewire. effectively new build except chasing walls for 50% of accessories. RCBO board and gas bond, 35 down lights, utility room, kitchen with 2x cooker circuits (6mm each) lounge, 2x beds, bathroom with mirror and shaver point, en -suite...

I’ve come across some domestic lighting wiring where some of the loop in cabling is in twin and earth both conductors brown. The neutrals have been sleeved with blue (i.e over one of the brown cores) in the 3 plate ceiling roses. Does this actually contravene any regs or otherwise necessitate...

The scenario is a very shallow void of 25mm + Plasterboard+skim so say 40mm tops. Has anyone come accross either surface mount or otherwise ultra slim recessed LED downlights than you can terminate 2 x 1mm T&E into ? I can find plenty of slim downlights on line but cant see how they can be wired...

The customer would like to convert detached garage to an office/small gym As there is no gas supply he wants an electric shower and a water heater for a basin. My plan is to take a feed from the existing meter tails via Henley blocks to a small CU with a 80A mcb acting an OPD for a 3 core 16mm...

I know they seem to be despised on here, but I have yet to see any valid reasons or explanations why ? Anyone tried/had problems/any feedback on the Visionic Powermax system ?

Hi, I've wired one of these, dead simple (should have been) just two PIRs and an internal speaker. Couple of problems: 1) When putting the battery jumper to "ON" on the bell box, the siren sounds, but remains on even with cover back on. Stays on even if hold tamper switch closed manually...

As pointed out at my last inspection, this should be 1667ohm not 1.5ohm for say a 32A mcb circuit protected by a 30mA RCD. (IR < 50V) Was I alone in entering anything other than 1667 for rcd circuits previously ? [edit: in a domestic installation]

Apologies for quality, taken with camera phone. Found this on a CU that has quite recently been rewired !! :shock: I would estimate whats left of these tails to be 6mm2 at best! There was a 10Kw shower, along with 32A cooker circuit with the usual sockets/lights etc. Must have...

If installing non maintained self contained emergency lighting luminaires (as a requirement imposed for a multi-occupancy letting) is there any regulation to also provide a local test key point ? Testing can still be carried out by turning off the breaker..Installation will be a lot cheaper...

Need a standard 100m external extractor fan grille but in light oak - to match the PVC windows and door. Can only seem to find them in brown or white, anyone seen them or know where to source one ?

I recently did some electrical rearrangements/additions etc for a kitchen fitter in a kitchen renovation. He called while tiling friday to say his lad just got a shock and it threw him across the room - while he was grouting ! He said the tiles were live and could I come and sort it out - he was...