Refer to NEC (NFPA 70) article 1277 for installation guidelines. Cable is suitable for use in Class I Division II hazardous locations. UL listed as Type TC-ER per UL Standard 1277 for tray cables. UL approved for Direct Burial, Sunlight and Oil I Resistant applications. Individual conductors pass UL VW-1 flame test, rated THHN/VW-1. Cable meets UL 1581 & 1202 (FT-4) 70,000 BTU/HR & ICEA T-29-520 210,000 BTU/HR requirements.