VRF Equipment fed off local Lighting Circuits

Sparkingchip:

 it was business as usual, working in the void is presumably not deemed potentially dangerous due to the presence of electrical cables.


Andy B.

There are plenty of safety requirements that would disagree with you - based on a few decades of absolutely shite installers throwing stuff into ceiling voids it's not that uncommon to see all sorts of shoddy stuff that often has readily accessible exposed terminals, joints etc


A contractor working on a project for one of our banking clients actually had an operative killed, as in the process of lifting a ceiling tile (which was clipped) an exposed chock block managed to contact a suspended ceiling suspension wire and livened up the grid  - the resulting fall from no significant height from a step ladder proved fatal


Some 6 month earlier, the existing lighting system had been replaced for LED panels - difficult to fathom why, but the existing lighting marshalling boxes fed the existing luminaires via klix type sockets in 3 core flex - the contractor seemed to have decided that the LED panels only needed 2 core flex so extended the 3 core with 2 core and left all the luminaires (and consequently the grid) unearthed. Easy to see how it happens, give the apprentice a pile a fittings, a coil of the wrong flex and a box of chock blocks and tell him to flex up every fitting with 1.0m of flex - get the rest of the guys to chop off the old fitting and remove - strip the flex back and then connect up to the tail end already on the luminaire - rinse and repeat.


OMS

Sparkingchip:

 it was business as usual, working in the void is presumably not deemed potentially dangerous due to the presence of electrical cables.


Andy B.

There are plenty of safety requirements that would disagree with you - based on a few decades of absolutely shite installers throwing stuff into ceiling voids it's not that uncommon to see all sorts of shoddy stuff that often has readily accessible exposed terminals, joints etc


A contractor working on a project for one of our banking clients actually had an operative killed, as in the process of lifting a ceiling tile (which was clipped) an exposed chock block managed to contact a suspended ceiling suspension wire and livened up the grid  - the resulting fall from no significant height from a step ladder proved fatal


Some 6 month earlier, the existing lighting system had been replaced for LED panels - difficult to fathom why, but the existing lighting marshalling boxes fed the existing luminaires via klix type sockets in 3 core flex - the contractor seemed to have decided that the LED panels only needed 2 core flex so extended the 3 core with 2 core and left all the luminaires (and consequently the grid) unearthed. Easy to see how it happens, give the apprentice a pile a fittings, a coil of the wrong flex and a box of chock blocks and tell him to flex up every fitting with 1.0m of flex - get the rest of the guys to chop off the old fitting and remove - strip the flex back and then connect up to the tail end already on the luminaire - rinse and repeat.


OMS