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.