Cable trays?

[Alan Ambrose]

OK another tech question...

 

We have a 50mm services void. I was planning to run horizontal cable trays, mostly high-up (2.5m above the floor) and split into mains & ELV / data (either using one split tray or two separate trays). Then a few vertical drops to light switches etc, also in trays if I can. And then fill any remaining void with, say, mineral wool.

 

Question is - how do I avoid the mains crossing the data or is that OK? Something like this:

 

Mains ------------------------!-------------------------------

Data   ------------------------!---------------!----------------

                                                  !                         !

                                                  !                         !

                                       Mains Socket     Network Port

 

 

[garrymartin]

Perfectly fine. Crossing has fewer issues than running in parallel, and even that is not a big deal given the number of cables and voltages we are talking about in residential construction.

[ProDave]

BUT electric cables must tin in safe zones.  So to ensure this the electric cable tray must be within 100mm of the ceiling all the way across the room.

 

The data cable tray can be at any height you want.