It heads off the possibility of a disorganized mass of conductors that are difficult to trace when changes must be made or faults located.Ī point to note is that there is a difference between cable trays and raceways. With a grounded metal barrier along the centerline to separate power wiring and data/communication cabling, a single, large cable tray installation is capable of routing a large amount of wiring. The cable tray is a wonderfully efficient tool used to manage all these wires. All of this may require robust air conditioning to control the I 2R temperature rise, not to mention clean electric heat and ventilation where precise temperature control is a factor. It is increasingly common to see a large amount of data and communication cabling with bandwidth and throughput demands squeezed into a limited area.