Standard length: 3000mm with ± 3. Custom lengths are available upon request. Hot Dip Galvanized after fabrication (ASTM A123 or BS EN ISO 1461:2009). Various galvanisation surfaces can be applied to improve corrosion protection. A cable support system consists of cable support lengths and system components, such as cable support fittings, support elements, mounting. cable trays are equivalent. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned in this technical guide only apply to our own cable management ranges and cannot under any circumstances be transposed to si osure, overheating or. 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. Cable ladder systems and cable tray systems shall be manufactured in accordance with BS EN 61537, channel support. 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.