Cable tray routing should be coordinated with building layout and other services (pipes, ducts, mechanical systems): Plan main routes along corridors, pipe racks, or dedicated cable trenches to minimize crossings and congestion. Long-span cable trays have a larger support span than ordinary cable trays, with a more sophisticated structural design and greater load-bearing capacity. They are not only suitable for the overhead laying of indoor and outdoor cables in industrial and mining enterprises such as petrochemical. Hubbell's NEXTFRAME® Ladder Tray is the effective and widely used cable runway that supports and delivers bundles of cable between cabinets, racks, and closets, along walls, and suspended from ceilings. The Ladder Tray features light, rugged, tubular steel construction. It is designed for. association representing the major electrical equipment manufac-turers in the U. It provides speed of deployment, structural integrity, cable protection and ease of use to drive business results.
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