Running Spur From A Ring Via Trunking From Flush Socket

[Wizbit]

A practical query...

I'm putting in a Spur for an outside socket running from a double socket in the nearest room. No FCU required. Customer wants the cable run in trunking from the existing socket (which is flush, metal back box,) rather than buried cable, so I was going to use a mini trunking pattress with mini trunking.

What's the best/easiest way to do this, if poss without disturbing the current socket? Can I get away with attaching the new surface box to the current backbox using longer screws and screw extenders?...although I realise that the screws for the socket itself will then also be holding the surface box to the wall, if that makes sense.

Ideas?..thanks!

 

[Evans Electric]

Its a bit of a pain in the buttress  but as you say , if you drill out the two brass captive threaded things on the moulded box and use the longest 3.5 pins avaliable , you can re- assemble the socket & box as one ,  but with your new cable connected .

There is a frame like spacer pattress (about 20mm deep)   but no one seems to stock them these days .

Doing what you are doing is much easier when the socket is a single.  ( Moulded box has holes to match the fixing centres)

Another way is to mount a 1g  moulded box next to the twin ...sneak a link between them ... run your mini trunking from that & fit a spur unit or a blank lid.

 

[Blue Duck]

+1 to what FSOTY says....Think they are called extender rings? 1g ones are much more common. Some surface boxes allow the threads to be knocked out others don't.

If the existing cables are short I cut the back out of the box with me dremel.

Why no fuse?

 

[OnOff]

Do you mean these:

http://cpc.farnell.com/1/1/51037-backbox-2g-10mm-spacer-818-bg.html

 

[Wizbit]

Thanks gents..yep I find it strange you can't seem to get double gang extenders..I managed to track down some single 10mm ones recently for changing a lightswitch to a dimmer, was ideal..but a 20mm plastic extender would be perfect for this situation.

Hmm..I'd thought about doing something with a 1G box next to it...food for thought...

Why no fuse?...just feeding one 2g sckt so no need..

Do you mean these:

http://cpc.farnell.com/1/1/51037-backbox-2g-10mm-spacer-818-bg.html

That's what I used for 1G..hadn't found 2G ones...thing is although I guess 10mm is enough to bring 2.5mm cable through I'd need to cut a section out of it to bring the cable through...though I guess the trunking would be sitting flush against the socket cover to hide it...hmm, thinking out loud here..that'll scare the neighbours!..

 

[kerching]

Personally i would fit a spur inside.....that way you can turn the socket off when not required.

It seems foolish to leave a power supply available for the local,scrotes to plug their angle grinder into so,that they can do a "barrymore" whilst the property is vacated

Well,that is what they did around here a couple of years ago

Just being cautious

 

[Wizbit]

Good point kerchin, thanks..crossed my mind...property is end of a cul-de-sac but rear Gdn is accessible, so as you say..tempted neighbours and when the cat's away!...

Good point kerchin, thanks..crossed my mind...property is end of a cul-de-sac but rear Gdn is accessible, so as you say..tempted neighbours and when the cat's away!...

Didn't mean to chop your g off kerching...so to speak!..

 

[Evans Electric]

Do you mean these:

http://cpc.farnell.com/1/1/51037-backbox-2g-10mm-spacer-818-bg.html

They are useful OnOff  but not what I was thinking of ....I used to have some at 20mm deep  so you could but some YT2 mini trunk to it .

I'll see if I can locate the make .

Edit ;  

MK used to do them ......K2133WHI  @ 20mm deep.

I think I was thinking of the old Tenby ones ..now long gone .

 

[Blue Duck]

Mk used to do the ones you are thinking about Deke.

 

[Evans Electric]

Yep  just found them Ducky.

 

[Blue Duck]

What they called? Googled extender rings to no avail

Edit didn't see your edit deke

http://www.tlc-direct.co.uk/Products/MKK2133.html

 

[Evans Electric]

They list them under    " Mounting frames for trunking "

 

[Barx]

Note the threads on most patresses can knocked out. So no need to drill them out. Get a socket screw and screw in from front. Tap with snips a few times and they come out.

 

[m4tty]

Why not use trunking smaller than mt2. They sell really small stuff that a 2.5 fits in snug. No surface patress needed

 

[OnOff]

How about a low one of these:



With a couple of these:



Some trimming / bastardisation may be required........ :lol:

 

[binky]

could you not go outside first, rather than run trunking inside?

would suggest d-line trunking (B&Q stock it) looks a lot tidier than square edge stuff

 

[Sidewinder]

TLC also do D-Line, and Screwfix (B&Q in disguise).