Suspended ceiling - how do you run lighting calbles ? ? ?

[mikex79]

Hi I need to run cables in a suspended ceiling (grid made of aluminium tees and mineral fiber ceiling tiles, suspention wires are fixed directly to the concret ceiling so there are not wooden beams that I could clip the cables to) the luminaires are already fit so what I need to do is just run the cables. What I have always seen was twin and earth PVC cables laid directly on the ceiling tiles and grid but I just have a feeling that this practice is not right there is something that is telling me that if there is an insulation fault even due to cable rubbing the main beam and tees the whole grid will become live.
My question is if there is any special method of suspending the cables so they will not touch the metal grid od should I clip them directly to the concret ceiling and just drop the cables to the luminaires? do the grid have to be earthed?
all suggestions would be much appreciate

 

[ajelec10]

Cateenary sounds good. never tried it but certainly cheaper than trunking, plas conduit, roses etc.

Whichever method you use 'make it tidy' and make it look professional so you can be proud of it.
There is no definative 'right way' to do a job and we should all learning all of the time.

'Make it right'
Uhmm. Thanks AJelec. I like that!

'Make it right' is a phrase used by Mr Mike Holmes, from Holmes on Homes its on discovery channel he is a general builder who fixes all the bodge jobs left by dogy contractors his ethos is second to none i really admire what hes doing in the states. check out his web site try Mike Holmes.!!!

 

[Spudnik]

'Make it right' is a phrase used by Mr Mike Holmes, from Holmes on Homes its on discovery channel he is a general builder who fixes all the bodge jobs left by dogy contractors his ethos is second to none i really admire what hes doing in the states. check out his web site try Mike Holmes.!!!

I agree but he really does make out that any other contractor in the US is bad, and never does anything by 'code', even if they are top notch.

And dont forget, he is on quite a healthy income for this.