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It is indeed.OMG look at the main earthing conductor wrapped in the green n yellow tape looks like its actually some of the steel wire armorings no gland there then!
Discuss Supplying outbuilding, bonding and earthing in the UK Electrical Forum area at ElectriciansForums.net
It is indeed.OMG look at the main earthing conductor wrapped in the green n yellow tape looks like its actually some of the steel wire armorings no gland there then!
No the cable is running to the CU in the post from the CU at the origin.I think I'm losing the plot on this thread.... is the OP planning to run a cable back to the CU shown in the first post?
No the cable is running to the CU in the post from the CU at the origin.
Yeah sorry the CU in the post is coming from a socket via the SWA in question.But didn't he say that the outbuilding was spurred off the kitchen ring - or is this CU the one in the outbuilding?
See Post 17.Ok Guys,
Went there today to talk about options and they want to redo this outbuilding so it's only for storage. They going to remove boiler and water and gas services will be terminated. So now it's only the case of new small consumer unit for lighting and few sockets.
Testing will confirm whether to reuse some of existing wiring or rewire all.
I did some resistance test between met and metal services in outbuilding and the resistance was below 2000 ohms so definitely needed bonding.
Adiabatics also gave me csa of earth 5.31mm. With that in mind would I still have to run another 10mm bonding or 3rd core would work fine parallel with armour as combine earth/bonding?
I did some resistance test between met and metal services in outbuilding and the resistance was below 2000 ohms so definitely needed bonding.
Adiabatics also gave me csa of earth 5.31mm. With that in mind would I still have to run another 10mm bonding or 3rd core would work fine parallel with armour as combine earth/bonding?
No you can't and if he did the csa is still inadequate.I seem to remember that you cannot combine swa & core, as form of earthing or bonding, but I might be wrong. What was the exact reading you obtained for suspect extraneous conductive parts?
Yep what are your plans now?It was 1837 ohms.
I believe should be over 23k to omit bonding.
I seem to remember that you cannot combine swa & core, as form of earthing or bonding, but I might be wrong. What was the exact reading you obtained for suspect extraneous conductive parts?
What a bodgeHi Guys,
Just join this great forum so lets get straight to the point...
Soon we will be working on property (TNS) with 1 outbuilding on the back of the garden which have kitchen, bathroom and 1 extra room. Also there is gas central heating with combi boiler. At the moment they feed this outbuilding from kitchen ring on a 30amp fuse. They spur off to the outside socket with 2.5mm then 6mm swa from that socket to the CU in the outbuilding(cable not even burried). CU have 2x20amp and 1x6amp circuits as per image (bit of a mess). House CU is approx 20mtrs away from outbuilding CU.
We going to rewire kitchen and outside bit and also have to reconnect outbuilding back all this will go into 3 or 4 way CU for now. So the questions are:
1. 6mm swa gland at house CU from 32 amp mcb without rcd to the outside plastic waterproof junction box to reconnect to existing 6mm swa. Will that be ok?
2. Would you gland both swa cables at the outside junction box and reconnect armour with banjo or is there better solution?
3. At the moment armour is used as the earth, should i connect 3rd wire back to earth as well?
4. There is no bonding provided in the outbuilding, mains water is in plastic externally but all inside is copper. Wouldit be acceptable to bond gas and water back to outbuilding CU? I read it somewhere that it may be different scenario with PME supply, but TNS should be fine.
5. And finally do i need to retest whole outbuilding or just the sub main cable?
Lucas
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How dare the moderators edit my post!! What I wrote was perfectly valid!! anyway... If I was you, I would get a competent spark In to do the job for you, then charge the client making a small profit :SWhat a bodge
I prefer the live coming from switch to rcd which is actually a neutral cable with red tape... looks like a quality job.OMG look at the main earthing conductor wrapped in the green n yellow tape looks like its actually some of the steel wire armorings no gland there then!
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