In June 2012, UL learned of compatibility issues when Classified Fire-Resistive Cables were used in electrical circuit protective systems where zinc was used as in interior coating in steel conduits, raceways and other system components. Specifically, at high temperatures the zinc coating interacted with the copper conductor creating a brass alloy that melted at a lower temperature than the copper conductors alone, thereby affecting the integrity of the electrical system. The presence of zinc compromised the electrical circuit protective systems and caused them to not conform to UL2196.
Complementary Product Line Helps Sell Strut
Alexander Industrial Sales is a third-generation manufacturers’ representative agency specializing in thermoplastic and fluoropolymer solutions in various industries including chemical…
What Type of Conduit to Use Underground?
Electrical conduit provides valuable protection to electrical wiring and electrical cable from moisture, fire, corrosion, impact, electrocution and short-circuits.
Capital Investments Continue; Champion Fiberglass® Receives New Crusher
(HOUSTON) – Champion Fiberglass’s strong commitment to environmental issues manifested with an ISO 14001 certification, and a continuing step in…