Bad practice or fine ?

[weyboy]

If the conduits are in the walls as drops only and not grounded in any way and are not in contact with any extraneous conductive parts or exposed conductive parts then should be fine and no need to earth conduits.

 

[heathelect]

stevieh, ive seen them all, wooden pattresses with surface switches, wooden flush boxes with flush switches, we used to re use these boxes and fix plate switch with chrome 6s woodsrews, of course not advisable now (FLAMMABLE BACK BOX), ive also seen wooden trunking underfloors slotted for single v.i.r. cables in them, with a flat lid, must have been a joiners job to install the trunking it was a work of art. So re-use those metal conduits and extend with capping, its not a problem, but dont forget your zoning.
regards dave

 

[Shakey]

I presume the reason you have mentioned the 17th in the post is because of the rcd requirements.

So can you run in the conduit. Yes of course you can.

Does it absolve you from puting the lights on a 30mA? No

so, just run the cables in as if it was a chase and put on an RCD, or earth the conduit and dont protect with RCD - both ways would meet the regs.

 

[stevie h]

Thanks for all the input .

Ste