UL1277 TC-ER Cable: Avoid Unnecessary Conduit Costs
In 2026, the NEC revised Section 336.10(7), clarifying where TC-ER cable may transition without continuous support for a distance not exceeding 6 feet (1.8 meters) between a cable tray, raceway, enclosure, or equipment and the utilization equipment it serves. Behind this rule is a fundamental engineering question: Does cable protection have to come from external […]