electic cables in concrete floor.

[nottsrob184]

Hi all.
I am currently in the process of contsructing a concrete floor base for a rear house extension (new kitchen).
My wife wants an island unit that houses a dishwasher and electric hob.
Obviously i've got to get the sparks over to the island and i was thinking of burying the cable(s) in the concrete when i get it poured next week.
Is this OK? or will building inspector throw a wobbly?
I was going to protct the cable in a protective tube. If that is ok....what type of tube is correct to use for this.
Thanks for any advise.

 

[ricicle]

If the cables are going to be deep in the concrete (>50mm) then you could use PVC cables in a plastic tube (but beware of space factors and vermin risk). SWA or earthed galv. steel conduit would be a better option.

 

[mointainwalker]

If the cables are going to be deep in the concrete (>50mm) then you could use PVC cables in a plastic tube (but beware of space factors and vermin risk

I know mice are clever adaptable little buggers, but attacking wires buried in a slab?????

 

[ricicle]

If the cables are going to be deep in the concrete (>50mm) then you could use PVC cables in a plastic tube (but beware of space factors and vermin risk

I know mice are clever adaptable little b*****r, but attacking wires buried in a slab?????

If you use a white plastic waste pipe then the rodents can get down inside it and have a nibble - believe me I've seen it.

 

[sparkwright]

Be sure to run two cables over to the island, so you will have a ring.

Other wise you will have problems.

Generally PVC tube is generally used with twin and earth cables because it's quick and easy.

Consider any other cables you may need in the future such as lighting.

 

[securespark]

Be sure to run two cables over to the island, so you will have a ring.

Other wise you will have problems.

If he only needs a 13A supply, a spur is OK.

Even better, the island socket could be incorporated as part of a 20A radial.

 

[holmslaw]

..

 

[sparkwright]

Be sure to run two cables over to the island, so you will have a ring.

Other wise you will have problems.

If he only needs a 13A supply, a spur is OK.

Even better, the island socket could be incorporated as part of a 20A radial.

I've mis-read the op.

He mentioned one of the appliances is an electric hob, so presumably this will need a separate larger cable on it's own circuit.

As regards to supplying the dishwasher, extending the ring properly will of course allow you to fit any general use sockets you may require, or any other appliance you may not have allowed for.