Product Description 50' 10/2 Underground Feeder With Ground Cable, Plastic Jacketed, Copper, Cut Lengths. From the Manufacturer For applications of direct burial, dwellings not exceeding 3 floors above grade, underground feeder to outdoor lighting or apparatus, exposed or concealed wiring in damp, moist, wet, dry, and corrosive locations, general branch circuit wiring and new wiring or replacement wiring. Flame retardant and moisture. Sunlight resistant jacket. JC-30B Federal specification, ASTM B-3, ASTM B-8 and NY state DOS 16120-880923-2002. U.L. Listed. /2 = 2 insulated wires with bare ground. /3 = 3 insulated wires with bare ground.