UL2196 Fire-Resistive Cables and Phenolic Conduit

This white paper presents an overview of UL2196 fire-resistive cables and phenolic conduit, focusing on the compatibility issues identified in June 2012 when classified fire-resistive cables were used with zinc-coated steel conduits. The interaction at high temperatures leads to the formation of a brass alloy, compromising the integrity of electrical systems. The document outlines the UL2196 test designed to evaluate the performance of electrical circuit protective systems during severe fire events. It details the impact of these cables on various project systems such as fire pumps, elevators, and smoke management systems. The paper discusses the advantages of using fiberglass high-temperature phenolic conduit as a solution to zinc compatibility issues, highlighting the successful performance of RSCC VITALink® 300 cable and Champion Fiberglass Type XW conduit during testing. Additionally, it addresses the economic implications of using these materials in two-hour fire-rated installations, emphasizing their role in ensuring long-term performance and reducing safety risks.