Various codes for cable trays
The applicable codes and standards for cable tray design, installation, and maintenance include the NEC, UL, CEC, IEC, NEMA, ASME, ISO, ECAO, NFPA, IEEE, and NACE. It is the first joint effort of NEMA and CSA International to put in one place standards for metal trays per both NEMA and CSA methods. maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when the cable tray cont d for instrumentation and control applications that require. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned.
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