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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Electrical Questions >> Shed wiring https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1106697448 Message started by JohnDavies on Jan 25^th, 2005, 11:57pm

Title: Shed wiring
Post by JohnDavies on Jan 25^th, 2005, 11:57pm

It occurs to me that as part of the rewire at the house we have just bought I could run a cable to my shed. While I'm at it I might as well do the lot!

The shed where we are living now was wired some years ago using 6mm flat in 20mm plastic conduit, with solvent welded joints. It runs under a concrete path at no great depth.

I have both cable and (some) conduit here, and will need to put down a path, so doing the same again would seem to make financial sense.

Can I do this, according to current regs, and if so at what depth, or do I have to go down the armoured route these days?

The shed will just have a RCD socket and overhead light, all run off the MCB equipped Wylex secondary CU in the garage.

Thanks John D

Title: Re: Shed wiring
Post by L.Spark on Jan 26^th, 2005, 12:19am

wrote on Jan 25^th, 2005, 11:57pm:

I have both cable and (some) conduit here, and will need to put down a path, so doing the same again would seem to make financial sense

Unfortunately it doesn't make sense from a safety point of view, and why replace the same.

Nope, if it's going to be re-wired it's best done in Steel Wire Armoured Cable (SWA)

6mm 3-core would serve well, buried direct in concrete at a minimum depth of 60cm

Quote:

or do I have to go down the armoured route these days?

Yes, better option

Quote:

The shed will just have a RCD socket and overhead light, all run off the MCB equipped Wylex secondary CU in the garage

2.5mm SWA would be enough then, however best to put in at 6mm to allow for expansion in the future

Title: Re: Shed wiring
Post by JohnDavies on Jan 26^th, 2005, 12:34am

Unfortunately it doesn't make sense from a safety point of view, and why replace the same.

Sorry didn't make myself clear.

The shed at our current- tenanted - house - is wired in 6mm. I was thinking to do the same to wire up the shed in the house we have just bought, which I am currenly rewiring.

I might just run an extension lead in a hosepipe.... ;D ;D ;D :o :o :o

Serioussly, looks like the SWA route.

Thanks

John D

Title: Re: Shed wiring
Post by L.Spark on Jan 26^th, 2005, 12:46am

Sorry, my mistake, best use some SWA, made for the job

Title: Re: Shed wiring
Post by ban-all-sheds on Feb 3^rd, 2005, 12:25pm

Ironic isn't it - extension lead in a hosepipe would be perfectly legal.

Properly terminated SWA buried at the appropriate depth would be illegal unless you have the LABC people come and inspect it.

Title: Re: Shed wiring
Post by L.Spark on Feb 3^rd, 2005, 12:30pm

wrote on Feb 3^rd, 2005, 12:25pm:

Ironic isn't it - extension lead in a hosepipe would be perfectly legal.

Properly terminated SWA buried at the appropriate depth would be illegal unless you have the LABC people come and inspect it.

Yea, I blame the government, there far too expensive and cause far too much trouble ;) ::)

Title: Re: Shed wiring
Post by Learner Turner on Feb 3^rd, 2005, 12:56pm

wrote on Feb 3^rd, 2005, 12:25pm:

Ironic isn't it - extension lead in a hosepipe would be perfectly legal.

Properly terminated SWA buried at the appropriate depth would be illegal unless you have the LABC people come and inspect it.

The lunatics realy have taken over the asylum......

Title: Re: Shed wiring
Post by JerryD on Feb 3^rd, 2005, 7:44pm

Annoyingly, my leccy wholesaler doesn't sell hosepipe >:(

lol ;D

Title: Re: Shed wiring
Post by plugwash on Feb 3^rd, 2005, 7:57pm

mmm what about making an extention lead out of SWA?

get some 1.5mm or 2.5mm 3 core swa

at one end gland it into a metalclad socket and earth the armour

at the other end terminate the outer sheath and armour under adhisive lined heatshrink and take the packing and inner cores straight into a plug.

can anyone see any problems with a lead like this?

Title: Re: Shed wiring
Post by Beanzy on Feb 3^rd, 2005, 8:21pm

earthing the armour at the socket end would be impossible without incorporating it into the fixed installation. You'd have to earth the armout via the supply plug top to make it a temporary affair. I reckon if you wanted something part P proof you should go for SY03 taking an earth tail from the gland to the plug top.

To be honest if you're getting all twisted up trying to avoid Part P like that then the wheels will fly off the waggon sometime. If it's going to be used alot then it's worth the dosh to get it done right, if not then keep it simple and light so you can roll it up when done. Stick an SRCD on the socket end. There's all sorts of other factors like EFLI and the like which will need to be sorted too.

If Part P is the problem then get TT in and he'll sort it last November. ;)

Title: Re: Shed wiring
Post by L.Spark on Feb 5^th, 2005, 1:42am

wrote on Feb 3^rd, 2005, 8:21pm:

If Part P is the problem then get TT in and he'll sort it last November. ;)

lmao