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this is what he used http://www.batt.co.uk/products/view/610/Split-Concentric-Cable-BS7870

just rang him, info on side of cable says, electric cable 600/1000 v BS7870 - 3.21 general cable and energy 1 x 16 cu 2008

The cable is black, very thick tough casing approx 16mm in diameter. He returned the earth via this cable to house cu as well as using an earth rod next to workshop. I can get the info printed on the side of the cable if this helps?

Sorry Sparkwright I don't think I explained myself well! Its a ring circuit in the workshop, 2.5mm its currently on a 16amp as he bought a Mk garage unit and this was the highest. With the intention of swapping to a 32 amp asap. As you 've suggested the air compressor will run of the 16amp so...

thanks Sparkwright, I think the cost saving of the free cable warped his mind! Its the cable I think they use in the street. It is under a concrete driveway all the way to workshop, but not ideal. Are you suggesting moving feed to non rcd side of house CU?

yes Sparwright there a spare 32a mcb on the non RCD side of house CU

the sockets in the workshop are on a ring circuit 2.5mm cable

the earth both runs back to the house CU and is earthed at the workshop end via an earth rod.

thanks Sparkwright we will change air compressor to 16 amp breaker will leave cable as 2.5mm twin and earth.

the cable is not SWA its been put in condulit and in a trench about 4ft down. Its about 120ft from house to workshop and he put an extra earth rod at workshop end.

Air compressor 3.0hp 2.2 kw. I'll find out if the cable is SWA, give me 10 minutes.

The cable to the workshop I think its 16mm. In fact slightly larger than the cable coming in to the house from the lane! His pal bought it around on his way home from work, and cut it of a wooden drum on his trailer. If you need more info i'll give him a ring thanks for quick reply

Hi Guys, After helping building my brothers workshop he's now done the electrics. Please don't shoot me down about Part P, i have explained this several times to him. He asked me to take a look (i'm not an electrician) to see what I thought. In the workshop he's got an 40A RCD CU, with 6A...

The mineral wool you mention for sound proofing is that the same as the insulation stuff you put down in the attic? Sorry if thats a dumb question!

Thanks guys, I thought that would be the case. Is it worth drilling a series of holes were the bedroom wall adjoins the back wall to make it part company more easily or just get in there with a chisel.

Hi Guys, We want to remove our bathroom wall and replace it about 2 ft further over into our bedroom. Its going to be alot of work for such a small gain but our bathroom is so small it should make a big difference. The house is 1950's. The wall is constructed out of a light weight, dark...

Neighbour came round today to ask me to tune their digibox. They've got no instructions and i've looked everywhere in the menus and can't find the auto tune button. Any ideas?

are they expensive to hire? the steel is 8mm thick would this be a problem?

Hi. A friend has asked me to lay some blocks for a small barn on his farm. The building uses vertical steels (rsj's) to support the roof. The blocks in theory aren't structually relevant to the building, more to enclose the sides and keep the elements of the cows!! The back and front walls...

Pathclear, Weedol, and most diy centre weedkillers contain paraquat as its main ingredients. They are a contact only weedkiller, killing the green leaves sometimes within 24 hrs, unfortunately the weed itself will usually survive and regrow within a few weeks. So you then go out and buy more...