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I need to get a copy of a certificate for d/b installation. My son in law rented our house, had the works done by someone and won’t give me the certificate as I want to sell the property. Can I download it from building control or NIC and would it cost?

Can anyone suggest a suitable timer for a shower. Customer wants to control time of day her lodger uses the shower for some reason. Don’t want one which uses a payment card just a timer.

So I have an old house with the sockets just sitting above the skirting boards. The floors are all laminate so can’t go taking them up. I want to raise the sockets up the wall to the correct height but there’s no give on the cables in the existing sockets. Anyone got any ideas how to extend...

Just doing a radial for 3 sockets, a fused spur and socket for washing machine and dish washer. It’s fine isn’t it to use a type A Rcbo isn’t it? Always get confused with it and an AC type

I use a Megger MFT 1720; there are three options for testing earth loop impedance: 2Hi, 2Lo, 3Lo. Can anyone explain the different variants as I get different readings depending which option I choose Thanks

So we have a long section of steel conduit above a ceiling grid with bends for the drops to sockets. I’m no expert on steel conduit and haven’t done anything since college. I want to install another socket which means breaking into the existing conduit and adding a drop. What’s the best way to...

Will an MK grid frame fit on a drywall back box? there’s a 100mm cavity behind the plasterboard to the wall so can’t fit metal box

Has anyone got any good ideas for a good looking finish.  I need to install dado trunking and going to extend the ring from a flushed in box the other side of the room so will run some MT2 trunking to the dado.  I don’t want to bring out the flushed in box and put a surface box as it won’t...

Can anyone let me know if this ok.  I can’t find a relevant regulation and therefore unsure if it’s ok?

So I have a 3-gang light switch chased into the wall. Only one switch being used.  I need to bring this out into a 1-gang surface switch plate so I can get trunking into it.  the room is grade 1 listed so can’t go chasing as it’s also a hospital. Basically going to make it 2-way.  I can’t...

When working out the amps a machine is going to pull so I can select the right cable, do I need to calculate it using line to line voltage or line to neutral voltage.

I want to overlay the cables with channel. If I use PVC channel instead of the galvanised stuff, what is the best way to fix it and keep it in place

I'm trying to understand control circuits, perhaps someone can explain properly for me to understand . Why do you not need to earth a DC system? How are the sine waves formed? Is it positive, 0 volts negative? In control circuits for example 24v circuit, what is the difference with cables...

Can someone explain what the term clean volts is in regard to electronic circuits

Ive not done one before and have to fit one this weekend. Taking the switched live and permanent live from the bathroom light fixture, I'll terminate into an isolator then into the fan giving me a switched live, a permanent live, a neutral and the cpc. The question I have, do the cables need...

Ive recently started working on these type of systems. Can someone please explain what is 0v ? Sometimes items will be wired up to 24v with he return being 0v and not 24v- or neutral. Can anyone explain please ?

Ok, this is gonna be really basic but here's the scenario . Basement flat, kitchen, concrete floor. I need to change the position of one socket on a Ring circuit that is chest height at the moment and move it to the same height a meter along the wall cause new kitchen and tops being fitted...

I want to put an outdoor socket for my caravan to plug the 3pin commando style socket into. It'll be rated at 16A. Can I just link into my downstairs ring circuit in the house or will it need to be on its own circuit?

Im 44 and started back at college nearly 4 years back doing a couple of evenings a week. I now have: C&G 2330 level 2 C&G 2330 level 3 C&G 2382-12 (17th edition including amendment 1) C&G 2391-10 (test & inspect) I thought that'd be enough for a gold card or approved...

Im proposing to split a downstairs ring into two radials. Basically, a door has been put in the rear wall and the cable running along the skirts will be interfered with. Concrete floor makes going down a non starter and I don't really want to run new cable up an down the walls. My proposition...