Distance between large-span cable tray supports

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For ladder cable trays supporting large power cables, 9-inch or wider rung spacings should be selected. Cable tray (or cable ladder) systems are a popular alternative to electrical conduit systems, as they have an outstanding record for dependable service, design flexibility and cost savings in commercial and industrial applications. 8 (Other Mechanical Stresses (AJ)) in that document provides requirements for cable support. In this blog, we'll focus on support spacing for perforated, ladder and wire mesh cable trays and reference the National Electrical Code (NEC). Proper installation can significantly reduce electromagnetic interference, prevent fire hazards, and improve overall efficiency.

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