The guide includes diagrams for mounting cable trays on walls using pre-fabricated flanges or channels, laying cables, and selecting the appropriate material and finish for the environment and application. Vertical penetrations are weathertight openings where pipes, ducts, cable trays and any other building ancillaries enter or exit a building through a wall. They provide a route for building services such as gas, water, and electricity to enter a building, for waste to be carried away and for data. When developing our cable support OBO can offer reliable solutions for systems, three attributes are at the routing and fastening cables securely core of what we do: efficiency, resil- for each of these installation challeng-ience and safety. es in the industrial environment. Our cable support. maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when the cable tray cont d for instrumentation and control applications that require. This guide provides step-by-step instructions on installing a cable tray on a wall, covering different types of cable trays, tools needed, and safety tips. In my limited experience, the biggest added risk is the greater opportunity for a baboon installer to overtighten a ty-rap, cutting through the cable insulation. or, worse, not quite cutting through it. Grounding: Metallic trays (Steel, Aluminum) can be used as part of the equipment grounding conductor, but this must be designed and labeled per code (e. Non-Conductivity: Required in areas with sensitive electronic equipment or where fault current is a concern.
