Kitchen work

[mikel]

I've been asked to do some work in a kitchen that's being altered. It is going to have a central island of units with a work top. They want a power supply to it for some sockets and plinth lighting. The problem comes because the floor is 'solid' not sure yet what its made from but I'm unsure of the best way to get the cabling to the centre island. Anyone got any ideas on the best methods?

 

[Andy™]

large breaker?

 

[fletchflash]

i once ran some cables along a floor chase when no other way. I ran them through some flexi conduit for a bit of protection, then a builder cemented them in.

I would maybe chase out the floor with a stone cutter, quite deep, then maybe try and put a small drain pipe to pull cables through or some flexi conduit

 

[ianmacd]

Get builder in to chase floor and lay some flexi in (a few runs) for future expansion too.

 

[batty]

All the ones I have done in concrete floors I have used my chase cutter twice so to speak that way you have a 60mm cut that can then be broke out with a drill on impact function. These have been total refurbs so no need to worry about pipe under floors just be careful there are none if its not a refurb. I then run the cables through a 20 or 25mm conduit to the island once under the island they can just be loose.

 

[sprocketflup]

Catenary wire

 

[batty]

Catenary wire

Good finking they can hang there lights from it too two jobs in one.

 

[PC Electrics]

Get builder in to chase floor and lay some flexi in (a few runs) for future expansion too.

Huh? How on earth does any sparks manage without an angle grinder & cutting disc and an SDS with rotostop & a set of chisels?

 

[Doc Hudson]

Some older properties with solid floors are not that thick or solid at all, I would think an exploratory hole would give you a clearer idea of the best method. Chop out a small section of floor underneath where the island is going. A battery drill on hammer action will normally cut a depth testing hole and you can get the feel of how dense the concrete is. Lump hammer and hand chisel would probably be the careful way to go on this first exploratory hole, watching out for any other pipes or buried items.

Doc H.

 

[NozSpark]

I've chased in SWA for the ones I've done in the past

Then they've been tiled straight over

 

[mikel]

My main concerns were what precautions you guys take to protect the cables, I was thinking of using some flxi conduit or the likes but wondered if steel would be better. Are there any regs to bear in mind. I can't seem to find any in the brb

 

[ianmacd]

You need to make sure you are not compromising a damp course too and other requirements that we do not normally have to comply with on a day to day basis, hence its easier to get a builder in.

 

[NozSpark]

Don't forget that in a dwelling any Cables burried <50mm and outside the allowed zones will require Mechanical and RCD protection

 

[ianmacd]

Thats for walls not floors or ceilings.

 

[NozSpark]

IIRC Its for burried cables and there is no distinction as to where they are

 

[steptoe]

IIRC Its for buried cables and there is no distinction as to where they are

+1

 

[ianmacd]

Maybe you both should go read 522.6.6 again then. The clue is in the 6th word.

 

[sprocketflup]

522.6.5 - would that apply?

 

[Sidewinder]

What about 522.6.5?

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sproc you beat me to it!

 

[steptoe]

why do people only want to read and apply the bits that suit?