Cerro Wire 138-1602CR-3 Type UF-B 100-Foot 2-Conductor Underground Feeder Cable With 90 insulation, 600 Volts, Type UF-B; Cirtuf Underground Feeder Cable Assembly: Two insulated 12-AWG conductors are laid parallel with one bare 12-AWG grounding conductor Two Solid 12-AWG Conductors: Soft, uncoated copper per ASTM-B3; One Solid 12-AWG Grounding Conductor: Soft, uncoated copper per ASTM-B3 Industry Standards: UL 83 (insulated conductors), File No. E15119; UL 493 Thermoplastic-Insulated Underground Feeder Cables, File No. E26403; ASTM-B3; Federal Specification A-A-59544; NFPA70: National Electrical Code Package Code: "C" (100' Coil); Jacket: A gray, sunlight resistant PVC (polyvinyl chloride) is applied directly over and around the two insulated and one bare ground conductors