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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Electrical Questions >> Joining 10mm cooker cable https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1085687794 Message started by TonyB on May 27^th, 2004, 8:56pm

Title: Joining 10mm cooker cable
Post by TonyB on May 27^th, 2004, 8:56pm

???

I am about to revamp a kitchen which will mean moving the cooker control unit (the new control unit will not have a 13 Amp socket on it). Is it possible and legal to join 10mm cable and if so how ?

Many thanks for any advice.

TonyB

Title: Re: Joining 10mm cooker cable
Post by supersparky on May 27^th, 2004, 9:10pm

it is legal
you will have to use un insulated crimps to do it with and heat sleeveing, unless the joint will be acsessable, in which case you may use a 45amp/50amp junctionbox
if it is going to be jointed in the wall this probrably wont be convenient(the uninsulated splices require a special tool to do!) the best way would be to pull the cable up into the floor above and join it there, with one new piece- it saves having a joint in the wall.

what ever you do make sure its done well, make sure there is no un insulated copper visable (the earth MUST be sheathed with earth sleveing) and make sure all the screws are tight, and the wires firmly in place.

ss

Title: Re: Joining 10mm cooker cable
Post by Lectrician on May 27^th, 2004, 9:19pm

Joining 10mm - god.

This size cable doesn't fit standard joint boxes, best to use something like a Gewiss 'plastic' box, with either moulded terminal blocks or din rail terminals inside. Use large TRS glands for the cable in and out of this box.

Im sure Supersparky will agree :-)

Title: Re: Joining 10mm cooker cable
Post by TonyB on May 27^th, 2004, 10:15pm

Thanks for the 2 suggestions, putting the join in the ceiling void would have been the easiest but it is not an option (ceiling is 6" thick concrete).

Can I use this plastic box and put it in the space left by the old control unit, plaster over the box and tile the wall?

Rgds,

TonyB

Title: Re: Joining 10mm cooker cable
Post by rabbit_rabbit on May 27^th, 2004, 10:31pm

Crimp and put crimp joints into a 'ChocBox' (about 90p to �1.00). Lock the Chocbox with supplied screw. Then TEST to make sure all is OK and THEN shove into hole and plaster it up.

RR

Title: Re: Joining 10mm cooker cable
Post by supersparky on May 27^th, 2004, 10:32pm

no unfortunatly, joints must be acsessable, is there no way you could hide it higher up the wall?
is the cable in singles(in conduit) or is it twin and earth(the 2 cores in a sheath with earth)

looks like your going towards a splice joint

other option is putting a blank plate over old hole and joining inside there- however, This MUST not get plastered over :(

ss

Title: Re: Joining 10mm cooker cable
Post by rabbit_rabbit on May 27^th, 2004, 10:37pm

(Revert) timing SS? A Crimp is not a JB and is not subject to inspection (that's a question SS)?

RR

Title: Re: Joining 10mm cooker cable
Post by L.Spark on May 27^th, 2004, 10:49pm

i agree, it's a good one too

Title: Re: Joining 10mm cooker cable
Post by supersparky on May 27^th, 2004, 10:52pm

timing! rabbit, posted at the same time as you
wasnt replying To you lol ;)
;D
nece to see we agree though

and ls, eh?
ss

Title: Re: Joining 10mm cooker cable
Post by L.Spark on May 27^th, 2004, 11:09pm

nvm, il find out lol

Title: Re: Joining 10mm cooker cable
Post by TonyB on May 28^th, 2004, 8:51pm

You guys certainly have different views! Not sure where we are with this but in answer to the cable type, it is a single 2 core + Earth.

What is involved with this splicing?

Rgds,

TonyB

Title: Re: Joining 10mm cooker cable
Post by scotspark on May 28^th, 2004, 9:00pm

hope this helps tony

doubt you will have crimps or a crimper so best to join it in the original box with terminal block and put a blank plater over it 8)

Title: Re: Joining 10mm cooker cable
Post by rabbit_rabbit on May 28^th, 2004, 9:24pm

Interestingly I was over at a ladies house today, invied over to quote for hre new kitchen electrics. Its afalt with concrete ceiling as well with concrete floors. There will be a need to extend cooker cable (10mm) about 1 metre. As far as I am concerned I have few choices, the cable cannot be pulled, theer is no access to cable above within concrete ceiling, no access to space abve at all.

Choices are ;

(a) a junction box on the wall exposed, that wil lok really nice in the new kitchen (not!), or

(b) crimp extension test and heat shrink sleeve over each joint. Test again, insert junction into Choxbox and fit into cavity where old cooker unit was and plaster it up then it will be tiled over. If its against the regs so what, the regs would have us make peoples houses look like battleships!

Job done, one happy customer and should it ever go wrong in the future then to me thats no different to any other cable break problem.

RR

Title: Re: Joining 10mm cooker cable
Post by TonyB on May 28^th, 2004, 9:35pm

Many thanks to all who have input on this.

Best regards,

TonyB

:)

Title: Re: Joining 10mm cooker cable
Post by scotspark on May 29^th, 2004, 8:09am

I would probably do the same rabbit but I doubt tony will have access to a 10mm ratchet crimper and heatshrink sleeving. :-/

also why wire a cooker in 10mm?

I have never seen one yet that draws more load than a 6mm can safely handle domestically :-*

Title: Re: Joining 10mm cooker cable
Post by rabbit_rabbit on May 29^th, 2004, 8:37am

True, true and errr .... true Scotspark.

Probably find out its only an electric oven which can be plugged in using a 13 amp plug!

RR

Title: Re: Joining 10mm cooker cable
Post by The_Trician on May 29^th, 2004, 10:31am

For future reference - I've just bought 3 white 60A 3 terminal J/Bs from TLC - Just right for joining big sizes of T+E. - Failing this, you could use a cooker connection unit - one gang 3 terminal. Instead of connecting flex to run outside to the cooker,just join the T+E inside. You use it on a 1 gang metal box and tile round it.

TT

Title: Re: Joining 10mm cooker cable
Post by rabbit_rabbit on May 29^th, 2004, 10:39am

Now THAT TT is very sensible thinking me old mate!!

I think a massive round and brown JB stuck on the kitchen wall surrounded by nice tiles may not go down to well but the idea of using a cooker outlet plate - very civilised indeed. Thanks for that.

RR

Title: Re: Joining 10mm cooker cable
Post by scotspark on May 29^th, 2004, 11:27am

wouldn't fancy trying to get 2 10mm T+E into a CCU :-/

Title: Re: Joining 10mm cooker cable
Post by rabbit_rabbit on May 29^th, 2004, 12:55pm

No problem Scot done it several times as CCU's are designed for up to 10mm.

RR

Title: Re: Joining 10mm cooker cable
Post by scotspark on Jun 1^st, 2004, 6:50pm

meant cooker outlet not cooker control unit.

2 10mms into mcooker control unit should be okj as long as you have deep box but 2 10mm's into cooker outlet would be bit tight I imagine :-/

Title: Re: Joining 10mm cooker cable
Post by rabbit_rabbit on Jun 1^st, 2004, 9:58pm

Sry mate I got what you were saying wrong.

Ray

Title: Re: Joining 10mm cooker cable
Post by The_Trician on Jun 2^nd, 2004, 8:17pm

CCU & 10mm - use a deep box (35 or 47mm) and feed from both sides of terminals. Yes its tight, but it can be done.
Just be prepared to sweat and swear a lot!

TT