Fixing cables before dot and dab

[Longers]

Hi guys,

Doing a kitchen refurb and adding and extending some sockets and extending the cooker circuit. Builder is going to dot and dab the walls next week just getting people’s opinions on the best method for fixing cables. Clipped direct to the wall or in oval tube or capped?
Also 25mm or 35mm boxes for the sockets and spurs?

Cheers

 

[Dustydazzler]

Plastic capping and 35mm KO boxes every single time

 

[Dobes_88]

Capped if dot and dab, oval conduit if chasing out existing.

35mm boxes throughout, 47mm for cooker & switches.

 

[Longers]

Cheers guys. For extending cables im guessing crimping in the existing boxes would be best?

 

[Dustydazzler]

In a perfect world I would try to pull cables back to the nearest point rather than jointing

But if you have to joint wagos are really nice to use

 

[Charlie_]

I capped a load of cables a while back just before the muck spreaders moved in.. “what you doing that for? The other spark didnt bother” - RAF then..
“Why have you put cardboard in all your boxes?” - beacause you are RAF
Trouble with using conduit instead of capping is the sweating factor..

 

[Longers]

Yeah will use capping for the cables and 35mm boxes chased in about 10mm.
If jointing using wagos would it be ok to join them in the existing flush box and run the cables to the new box? Just thinking that once the walls are done the joints will no longer be accessible.

 

[Charlie_]

** sweating factor???
Auto correct grrr
That should read as derating factor..

 

[buzzlightyear]

I wonder what dip dap says .LOL .

 

[suffolkspark]

Is it going to be evident where the cables run if the old boxes are being covered? You still need to make sure your in the prescribed zones

 

[Longers]

Yeah the cables are just being extended with the new sockets going directly below. The other cables will be clipped to the ceiling joists which are going to be battened off and boarded at a later date.

 

[suffolkspark]

Tbh if the ceilings down id be renewing the legs as required

 

[HappyHippyDad]

Plastic capping and 35mm KO boxes every single time

Capped if dot and dab, oval conduit if chasing out existing.

35mm boxes throughout, 47mm for cooker & switches.

Why 35mm boxes? They would jut out beyond the plasterboard? 25mm boxes seem to fit perfectly with dot and dab. Deeper boxes if the builder is using battens.

 

[PEG]

This all depends on the condition of the walls. I think 25mm boxes,with good walls and a plasterer who can,would be looking at you.
To judge what boxes and cable fixing method is suitable,you need to run a straight edge and level,across.

You can put in whatever you want....if the plasterer is rough,and the drywall adhesive keeps coming....

 

[jackhammerJIM]

Why 35mm boxes? They would jut out beyond the plasterboard? 25mm boxes seem to fit perfectly with dot and dab. Deeper boxes if the builder is using battens.

If a plasterer has 35mm boxes to get over he will use a thicker bed of adhesive .

 

[Rpa07]

I wonder what dip dap says .LOL .

Is that what it’s like to be in your head Buzz - complete with sound effects!?!

 

[Rpa07]

If a plasterer has 35mm boxes to get over he will use a thicker bed of adhesive .

Or he’ll unscrew your boxes for you to chisel in deeper after he’s finished his boarding and plastering!
It happened!

 

[Longers]

Think I’ll run the cables in and get the customer to call the plasterer tomorrow and see what he says.
For extending the cooker circuit I was going to mount a wago junction box with 733 6mm connectors fixed up to the ceiling joists. That way when the ceiling is boarded it won’t matter as it will be a mf connection. Or has anyone got a better method?

Thanks

 

[Longers]

 

[Longers]

The cable will be run to the far corner in the photo through the joists.

 

[Top Cat]

If a plasterer has 35mm boxes to get over he will use a thicker bed of adhesive .

No, he won't, he will leave 10mm of box proud of the wall and blame you!

 

[123]

No, he won't, he will leave 10mm of box proud of the wall and blame you!

And he'll also no doubt have filled the box full of plaster as well. And the 25mm box that was put in you won't be able to find as he'll have covered it over

 

[Longers]

Thanks for all the replies. Have checked the customers fittings they have bought from wickes fittings specify minimum 35mm depth of box so that’s that sorted. Have traced all the socket and light cables so no need to extend any which is better. Just the cooker cable to joint now.

 

[telectrix]

solder or yellow crimps and heat shrink for extending cooker cable.

 

[FatAlan]

Definitely 35mm boxes as they bound to want sockets with USB chargebpoints.

 

[Midwest]

Or use Wagos for the 6mm cooker.

 

[mattg4321]

I always try to fit 35mm boxes as standard - unless its a rewire where I know I'll be keeping costs down as much as possible as customer has requested and the walls are fecking hard!

 

[cliffed]

I had loads of hassles with the spreads on lots of jobs,
boxes far too back,cause their boarding was not uniform,boxes sticking out,rough cuts around the boxes.
Became a nightmare,especially with these new slim profile sockets,the ones that actually have 2 parts to them,& the actual front pushes satin chrome finish.
They come in herds now,& don’t care too much about anything .

 

[jackhammerJIM]

No, he won't, he will leave 10mm of box proud of the wall and blame you!

I must be lucky

 

[telectrix]

and make sure you leave 5 cables in switch box 2 ft. longer than required, sharpie marked at ends, so boarders/spreads can cut then short and chuck the identified bits in the skip.