Cross-linked polyethylene (XLPE) insulation. Insulated conductors laid parallel with bare ground wires helically wound around core. Covered with a reinforced binder tape. Sunlight resistant gray PVC jacket. Above ground service entrance and branch circuit. Maximum operating temperature of phase conductors not to exceed 90 deg C in wet or dry locations, 600 V. UL listed. Amp capacities listed are at 30 deg C/85 deg F.