Features & Benefits | Reliable during long life: 30 year product warranty available| Ultimate performance: fireproof, no smoke generation, zero halogens, high mechanical strength and corrosion resistance, waterproof and non-ageing| System 1850 appears in Electrical Circuit Integrity System (FHIT and FHIT7) of the UL/ULC Fire Resistance Directory| UL Classified/ ULC Listed: tested to the UL 2196/ULC-S139 fire test standards| Complies with wet-location and LSZH requirements for transit applications as outlined in NFPA 130| Meets requirements of an Electrical Circuit Protective System, as referred to in Articles 695 and 700 of the National Electrical Code (NEC)| UL fire-resistive classified, does not require additional conduit or fireproofing |