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Posted

I am completing a house, concrete framed, with hollow/cinder block infill.

The builder has had to go to a more lukerative contract for a few months...

Cut to the chase:
Can I fit the wiring to the hollow block then cement in with the final finish?

The electrician I have found says I must fit conduit on TOP of the finish - ugly!!

(OK I have to - on the concrete ceiling...)

(If this is in the wrong place can you make it easier to find the right place!)

Posted

Of course you could chase the cables into the wall. First cut each side with a grinder, then knock the middle out. Use wire clips to hold cable in place, fill then render.

Your electrician would of never seen this technique, that is why he is saying he cannot do it. That and it's more work..

  • Like 1
Posted

Let's put this in our specialist sparking forum.

Generally, naked cable in the render (like the UK) is frowned upon, you need to use conduit but it can be chased into the wall.

If your sparks is insisting on surface conduit, get a new sparks.

  • Like 1
Posted

Wow so fast!

Not sure what chase means...
I wanted to push it in the hollow of the Hollow block and cut out a socket to pull the cable through

(Chase?)

But the spark is happy to clip the cable ON to the finish -

I just want him to fix it ON the Hollow block (fixing too weak?)

Then cover the whole wall with the finishing cement "plaster"...

The socket would protude a little but not as bad as Conduit...

Let's put this in our specialist sparking forum.

Generally, naked cable in the render (like the UK) is frowned upon, you need to use conduit but it can be chased into the wall.

If your sparks is insisting on surface conduit, get a new sparks.

Posted

If you can push the cables through the hollows of the blocks then do that. I don't fancy your chances of getting it through. You might get lucky though..

  • Like 1
Posted

Are your hollow blocks hollow top and bottom? Ours were closed at one or the other.

If you can drop the cable down the cavity if there is one, that would work well, but I'd still be using conduit for protection from wildlife.

'Chasing' is cutting a slot in the wall, laying the conduit in said slot then rendering over the lot, nothing visible.

Like this http://www.thaivisa.com/forum/topic/481794-housebuilding-thread/?p=5026240

  • Like 1
Posted

Looks great.

Pic: Image00005.jpg - Size: 152.67KB, Downloads: 49

Is what I wanted but it still needs conduit ?

I bought and sold a few do-er-upper houses in UK
but non had conduit...
(I have looked up "Fauna and Flora" problems and possible mice??
but they cannot get through to the embeded cable - if you see what I mean)

That's what the flap is about. He is happy to put open cable on top of the finish

but will not put them beneath the finish...

No one knocks a nail in, above a switch - right?

I intend to sell next year. And buy another plot...
(Now I've had a practice. Ha ha........)

Posted

A couple of important points:-

  1. We're not in the UK (I know, I know). Local sparkies want to do what they're used to.
  2. The cement based render used here is significantly more aggressive than the plaster finishes used in the UK.

We used an entirely conduit system with singles inside.

Posted

When I built my house 16 years ago I boought the conduit to put inside of the wall and in the end used the conduit with snap on covers that attaches to the finished wall. It can be painted over and doesn't look that bad. I'm actually glad that I did as I have changed and added many things over the years and it's easy to unscrew the conduit and replace it with a larger one, or snap off the cover and add/change wiring. Putting in a new circuit is easy, just add another conduit. I wired all my outlets "American" style, 12 inches off the floor and outlets on every wall so no unsightly extensions hanging all over the place as the outlets are hiden behind the furniture. I did use "romex" wire for the live and neutral and single green for the earth as I could not fing 3 wire "romex".

  • Like 1

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