How far apart should I place my mounting brackets? Typically, brackets should be spaced 4 to 5 feet apart for standard cable trays. To maintain structural integrity, spacing them closer together is recommended for heavier loads or longer spans. Although BS 7671 touches on the subject of cable supports, it does not detail specifically what these support distances should be. 8 (Other Mechanical Stresses (AJ)) in that document provides requirements for cable support. Fittings can, on the one hand, be used for horizontal or vertical changing of the routing direction or, on the other, to change the height or width of the. This publication is intended as a practical guide for the proper and safe* installation of cable ladder systems, cable tray systems, channel support systems and associated supports. Cable ladder systems and cable tray systems shall be manufactured in accordance with BS EN 61537, channel support. Cable trays are used for supporting insulated electrical cables for power and communication applications.
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