I'm replacing a threaded lamp holder and the original wires had ferrules on the end so I'm replicating this as it seems like it ensures a more reliable grip between the contacts.
Given that the entry point for the contacts will create a 90 degree bend in the wires, I think that the kink will be...
Hi all.
Been asked to join a couple of 25mm 4 core Swa's underground so am using a couple of torpedo's.
This is probably a basic question but one of the cables has a inner lead sheath so you have.
Insulation
Armour
Insulation
Lead Sheath
Insulation
Double Insulated Cores
Whats the deal with...
Have been asked to connect a SWA supply into a garage. The cable was ran in before I even knew about the job. No ducting as it enters the garage, been concrete poured round it as well. Then to top it off the joiner has fixed a stick to the concrete putting pressure on the cable. I’ve done IR &...
Over the years as a DIY-er I've used the old brown 30A circular junction boxes to add spurs to ring mains. I like them as they are strong, secure and visible. I've ALWAYS followed the rules on domestic electricity . Until earlier this year I've been able to check with a cousin who's a...
Hi all
I had some house rewiring undertaken on my house and have come across a few issues since painting.
First thing was damage to the rubber outer sheath of the SWA cable on the outer wall which I've rapped electrical tape around temporarily as the metal rods were visible and we had a lot of...
Morning..
I have a garage fed by 4mm, 2 core SWA. It is a 25m run from the CU. Can I use the armour as the CPC? The Main house is TT.
I have always used 3 core so have not come across this before. i am about to check my notes as I know I have information on this and will find the formula to...
Hi
Does anyone know where you can purchase the earth clamps that the DNO use on their lead supply cables? I used to have a few but cant find them anymore and Im not sure of the correct name for them.
Cheers
Martin
I attend a job today and can see the Main earth is via a tag to the SWA lead.
I called DNO and they informed me if the ze is within permitted Tn-s values (which it was 0.20 Ohm) then leave it in place. I requested a PME upgrade and they wasn't keen since this was in place.
Looking for some...
an outbuilding is supplied by a 50mm twin SWA cable from a PME supply
The assessor has told me to convert to a TT as the steel csa is too small, is there a way I can prove that surely a 50mm twin swa sheath is suitable to be a 16mm earth?
This has probably come up before but I cant seem to find it. I have been presented with an EICR produced by another company where they have put a code 3 down for using the sheath of mineral insulated cables as the CPC. No further explanation on the observations and recomendations sheet. No...
Hello,
I drilled a hole late last night after a long day and stupidly didn't check the wall directly under the plug socket (I know).
The RCD tripped and it appears to have just exposed the copper wires, just the sheath is damaged (pics attached).
From a bit of googling it seems there is no...
Some of these armoured cables have a section of outer sheath cut from them the only reason I can think of as to why is to get a better bend on the cable, any thoughts?
Hi all, this post is more for my own clarification, we have a council house in the UK and several years ago the cabling was essentially found to be dangerous and it was decided that they would rewire the entire house, all fittings, sockets, breaker boxes etc. They managed to achieve this in only...
Hi all
Firstly, I'm not an electrician but have found these forums extremely helpful reading over the last couple of weeks due to a running battle I've been having with UK Power Networks. Hoping some of the experts on here might be able to shed some light on the below...
I recently arranged...
Hello Guys
Going to be installing power and lighting within a garage.
I have been told the walls will be covered with ply wood once the install is done.
The fuse board and accessories will be mounted on woodern battens.
the only t&e that will possbily require mechanical protection will be for...
I'm a little confused as to where the responsibility lies for the conductor described in the title. You know the type - on old TN supplies where you've got a bare multistrand conductor coming from the sheath to the M.E.T that's always of a fairly piddly CSA.
My understanding is that this is the...
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