Accessories Add Flexibility to Cable Tray Systems

Cable tray systems could be considered the interstate highways for a 
facility’s power and data distribution systems. providing out-of-the-way
 support for a range of cabling, based on code requirements. Like all 
highways, these installations require options for merging cables in and 
out of “traffic,” and system designers and specifiers have a range of 
choices for meeting these needs. Legrand

Chuck Ross

Cable tray systems could be considered the interstate highways for a facility’s power and data distribution systems. providing out-of-the-way support for a range of cabling, based on code requirements. Like all highways, these installations require options for merging cables in and out of “traffic,” and system designers and specifiers have a range of choices for meeting these needs. In most cases, these “ramps” take the form of clip-on accessories that create gentle curves to protect against excessive bending that could damage cables over time. These include:

  • Bottom drop-outs, which provide support for smaller groups of cable exiting tray installations through openings in the bottom of both ladder- and basket-style systems.
  • Over-the-top drop-outs, which can clip onto a basket system’s side rails, provide smooth horizontal-to-vertical transitions for larger cable groupings.
  • Waterfall drop-outs, which replace a section of a basket system’s side wall with a gently curved, solid channel that can be used as a transition to another support system.
Additionally, where supporting strength allows, the sides of cable tray systems can be used to attach ancillary cable and wiring installations. Taking the form of J-shaped hooks and other devices that snap onto basket sides, along with other devices, these accessories can allow for easy wire and cable expansion. They also support operations in entertainment and sports facilities, in which requirements might shift from event to event.

Scott Bausch with Legrand, North America, says his company is seeing interest in such equipment, which also can quickly provide added cable-management capacity in today’s data-centric environment. He says Legrand is seeing “a broader market requirement for overhead fastener systems driven by POE, IoT and increased data demand,” referring to growth in low-voltage power-over-Ethernet (POE) cabling and Internet-of-Things sensors and control. “By using the solutions, the customer is able to expand capacity and make moves, adds and changes at a faster pace.”


Photo courtesy of Legrand