Is Black enamel steel conduit - OK in the floor?

[Monsoon]

I'm relocating a cooker/hob to an island in the kitchen.

Is Black enamel steel conduit - OK in the floor?
By floor I mean screed, I will level and then tile over the top.

I read that the Galv stuff is class 4 protection and the B/E is class 2.

Additionally,

Is 20mm conduit OK to run a single 6mm T&E cable (it's about 2 meters worth of conduit)

Can I run my 2m length of conduit at a slight angle (as the crow flies) to avoid having to put a bend in?

 

[ricicle]

Use class 4 Galv. conduit and make sure it is earthed

 

[Lectrician]

Use galv. It go at angles. Are you not bending it up the wall(s)? If so, 6mm is going to be tight in the tube. With no bends, 6mm would be ok, but still very snug. There is no factors in the OSG for sheathed cables in conduit/trunk, only singles.

 

[Monsoon]

Use galv. It go at angles. Are you not bending it up the wall(s)? If so, 6mm is going to be tight in the tube. With no bends, 6mm would be ok, but still very snug. There is no factors in the OSG for sheathed cables in conduit/trunk, only singles.

I'll go with a length of 25mm galv conduit.

So angle is OK? If 12 o clock is straight ahead then I need to be at 1 o clock to reach my island without a bend.

The cable will travel down the inside of a stud wall. emerging at floor level, where it will meet the new galv conduit. Onwards at a slight angle for 2 metres to the island. This time emerging under the oven housing unit.

 

[Lectrician]

Alls good, but earth the conduit! This would be best done by terminating the conduit to a trough box, metal adaptable box or a 47mm deep metal back box (they usually have a 25mm hole). This box would be best fixed into the stud wall with a blank plate (or isolator) in it. You would then need to pull 1 90 deg bend with a bending machine.

 

[the_site_box_guy]

Why not just use pvc flexible conduit no need to earth that and it will do the job just fine.

 

[securespark]

Assming the depth is acceptable, otherwise earthed conduit is the best solution.

 

[RF Lighting]

Why not just use pvc flexible conduit no need to earth that and it will do the job just fine.

No it won't.

The cable needs to be surrounded with earthed metal.

 

[securespark]

Think I've just clocked the key word here:

FLOOR.....

 

[the_site_box_guy]

Why does the cable have to be srounded by earthed metal?

 

[ban-all-sheds]

Not sure it has to be earthed, but the cable has to be protected, and plastic won't do that.

Monsoon - 2 questions:

you're doing this from scratch, so why not:

1) Use larger conduit?

2) Use singles, not T/E?

 

[Monsoon]

Thanks Chaps for the feedback.

I've decided to *can* the idea of moving the hob to the breakfast bar.

The hob was the only reason for running the conduit . I already have power from the ring main there, so I can have a tumble dryer and oven.

 

[tim west]

Kopex?

 

[ban-all-sheds]

SWA?

 

[Spark123]

Pyro? (I can picture some of the kitchen fitters faces now )