Shop Nilight 30 Amp to 15 Amp RV Y Splitter Adapter Cord 30A Male Plug to Two 15A Female 110V Household Outlet NEMA TT-30P 5-15R Pure Copper STW 10 AWG Cable for RV Camper Generator in high quality, support 2 Years 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.