Shed board

[m4tty]

Hi,

Got a customer who wants an outdoor socket and some lighting. He wants a 2 way cu in shed. The shed is used for storage only but the feed to it will be swa. Would you use a metal cu for the shed as I've got to gland swa to it. Just wondered what's the best way forward and how you guys normally do it.

Thanks

---------- Post Auto-Merged at 14:35 ---------- Previous post was made at 14:34 ----------

It's tns btw.

 

[Zeespark]

Metal clad with an RCBO for each circuit should do you bud. Try to get a hold of the Piranha earthing nuts too, if you can for it.

AndyGuinness

 

[Risteard]

Metal clad with an RCBO for each circuit should do you bud.

No real need for RCD protection of the lighting circuit.

 

[paul b b]

Matty. What is the main earth? I recall from the depths of the grey matter that you cant use a metal clad on a tt. But hay may be wrong.... But this does bring into question wether you are going to export the earth! Haha

Edit... Sorry just saw your edit

 

[m4tty]

Does anyone use insulated boards in sheds and if so how do you go about terminating the swa? Thanks

 

[Zeespark]

I wouldn't as the plastic construction of the board generally isn't strong enough to hold the SWA in position, leading to cracking.

AndyGuinness

 

[paul b b]

I have used some plastic ones, they were the empty shell type with the formed cutouts. I think sf do them, they seemed quite tough and had loads of room.

 

[Evans Electric]

Just use a metal board , M4tty , gland the SWA into it , 30mA RCD as main switch as the circuits are not important .

The only metal enlosure problem IIRC is if its fitted before a main RCD on a TT system .

I'm sure there'll be a dozen complications involving earth rods coming up but thats how I'd do it.

 

[Bacon]

Garage-Shed: Electrial Supplies (to). - Downloads - Talk.electricianforum.co.uk... a forum with a difference.

 

[Andy™]

Matty. What is the main earth? I recall from the depths of the grey matter that you cant use a metal clad on a tt. But hay may be wrong.... But this does bring into question wether you are going to export the earth! HahaEdit... Sorry just saw your edit

nothing wrong with metalclad on TT, however it must be after an RCD

 

[paul b b]

Thanks andy/deke

 

[M107]

Terminate the swa to an adaptable box below the cu.

The adaptable box is lower right

http://i83.photobucket.com/albums/j293/gazjothomas/P%20down%20school/DSC00583.jpg

Box lower right behind the cover.

http://i83.photobucket.com/albums/j293/gazjothomas/P%20down%20school/DSC00584.jpg

Or use an insulated cu with enough room for swa, this is an MK enclosure.

http://i83.photobucket.com/albums/j293/gazjothomas/chaple%20row/IPratedcu.jpg

 

[paul b b]

Nicely done as always M