metal capping not needed according to 17th

[trev]

capping is pointless really, but is something most electricians like myself like to do.

We do? Really?

 

[electroyd]

We do? Really?

well its all about good practice isnt it. not saying theres anything wrong with cable clips.
I guess it depends on whos patching up and making good.
I will continue using it, its up to you guys and girls what you do

 

[trev]

Imho it's good practice to keep all chases as slim as possible. To me it's pointless widening a potential 15mm chase for the sake of a pointless bit of capping when there's not a chance in hell of a plasterer's float going anywhere near your cable, bare walls are usually dot and dabbed round my neck of the woods so it's pointless there too, there are alternatives in a commercial setting too.
I just don't like the stuff. If specced I'll happily put it in but I avoid it where ever I can

 

[davesparks]

The way I was taught is to use plastic capping on new walls and oval conduit in chases in existing walls.
There is no sense in cutting chases wider than they need to be just to put capping in, yet I've seen so many people do this.

When we finally got a chasing machine we would cut 24mm wide chases and use 25mm oval, with the aid of a bit of tile batten it would tap into the chase an wedge tight with no need for any further fixing. It made the whole process pretty quick.

 

[TJ Anderson]

The way I was taught is to use plastic capping on new walls and oval conduit in chases in existing walls.

I was taught exactly the same, the only thing I clip only for is for dot and dab plasterboard.

 

[Tidy Max]

How do you guys fix the oval conduit to the wall? I have never used it and tend to use capping on jobs where i don't know the plasterer and when working along side a couple of plasterers i know locally then as Trev said, i prefer and they prefer a small neat chase!

 

[trev]

Jam it in mate, a wall chaser helps a lot but you need very efficient dust removal.

 

[Anthony S]

I've had the makita chaser and hoover a few years now and its still spot on.

 

[davesparks]

How do you guys fix the oval conduit to the wall? I have never used it and tend to use capping on jobs where i don't know the plasterer and when working along side a couple of plasterers i know locally then as Trev said, i prefer and they prefer a small neat chase!

Either a chase slightly narrower than the conduit and put a black on the conduit then give the block a good tap, or a couple of capping nails either side of the pipe, or for the narrower oval then a 2.5mm T&E clip or two works.

 

[Tidy Max]

Interesting, how much is a length of oval then and what sizes does it come in? Might buy some tomorrow and give it a try.
Middleton Electrical Services has never needed to rewire a drop but you never know it may happen at some point so i think i may give these oval shenanigans a whirl!

 

[davesparks]

13, 16, 20 and 25mm wide are the usual sizes, as for price I couldn't say off the top of my head

 

[Marvo]

I don't do domestic work so it's not a big deal but I've never seen oval conduit, I don't think it's available locally. Is it fairly new in the UK or has it been around a while?

 

[davesparks]

It's been around longer than capping has, once upon a time it was made of steel but now it's plastic

 

[tomspark93]

Interesting to see how others do it. We go to the effort of drilling, plugging and fixing the oval to the wall with galvanised steel band on new builds and existing properties

 

[davesparks]

Interesting to see how others do it. We go to the effort of drilling, plugging and fixing the oval to the wall with galvanised steel band on. Ew builds and existing.

Sod that for a lark, I'm in this game to make money!