Shop Nilight 50 Amp to 15 Amp RV Y Splitter Adapter Cord 50A Male Plug to Two 15A Female 125V Household Outlet NEMA 14-50P 5-15R Pure Copper STW 10 AWG Cable for RV Camper Generato in high quality, support 2 year warranty. Constructed with 100% pure copper with full 10 gauge wires ensuring high conductivity. The wires are stranded copper, it’s very flexible and the STW jacket is very durable.The jacket is coated with a heavy-duty flame retardant, heat resilient PVC sheath that serves as protection from the outdoor elements, wear and tear.