![]() The conductors shall be secured to the cable tray(s) at the transition, and they shall be protected, by guarding or by location, from physical damage. Where cable trays support individual conductors or multiconductor cables and where the conductors or multiconductor cables pass from one cable tray to another, or from a cable tray to raceway(s) or from a cable tray to equipment where the conductors are terminated, the distance between the cable trays or between the cable tray and the raceway(s) or the equipment shall not exceed 1.8 m (6 ft). (3) The system shall provide for the support of cables and raceway wiring methods in accordance with their corresponding articles. (2) Supports shall be provided to prevent stress on cables where they enter raceways from cable tray systems. (1) In other than horizontal runs, the cables shall be fastened securely to transverse members of the cable runs tray. Cables and conductors shall be secured to and supported by the cable tray system in accordance with (1), (2), and (3), and (4) as applicable: Cable trays shall be supported at intervals in accordance with the installation instructions. 392.30(B)(4) – Securing and Supporting (Cable Trays) Change at a Glance:Ĭable ties used to secure and support conductors and cables in a cable tray are an acceptable means of securement when identified for securement and support in a cable tray.ģ92.30 Securing and Supporting ( Cable Trays) Cable trays and their associated fittings shall be identified for the intended use. Where exposed to direct rays of the sun, insulated conductors and jacketed cables shall be identified as being sunlight resistant. Cable tray installations shall not be limited to industrial establishments. Single insulated conductors shall be permitted in cable tray only when installed in accordance with 392.10(B)(1). Revision provides clarity relative to the limitations of single conductor applications in cable tray systems.Ĭable tray shall be permitted to be used as a support system for wiring methods containing service conductors, feeders, branch circuits, communications circuits, control circuits, and signaling circuits. 392.10 – Limitations of Single Conductor Applications in Cable Tray Systems Change at a Glance:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |