Water and oil resistant: The 300V 10 AWG SJOOW wire 10/4 10 gauge 4 conductor SJOOW electric wire (SJOOW-Service, Junior, Oil, and Water Resistant) is designed to withstand harsh conditions, perfect for industrial/outdoor/commercial use, including welder/machinery/power generator/motor lead/EV car/battery charger. Safe 10 AWG SJOOW portable power cable: The 10 gauge 4 conductor OFC wire (OFC-Oxygen Free Copper) meets UL standards (UL E215210),provides greater electrical conductivity, and the 300V SJOOW electrical wire rating without overheating or damaging electric 10/4 SJOOW cable for ensuring safety and durability in all situations. Heavy duty 10 AWG SJOOW cable: The 10/4 10 AWG 4 conductor portable power cable wire is extremely thick, 10 gauge great power source provides high capacity for handling higher voltage loads, SJOOW 10 gauge electric wire cord is much more resistant to corrosion, absorbs heat better and lasts longer than non-OFC wire. Industrial grade 10 gauge SJOOW cord: The 10/4 wire 10 AWG SJOOW electrical cable has outer rubber insulation and inside rubber jacket, making 10 AWG SJOOW wire ideal for use in industrial&commercial&outdoor power generation, including motor leads, battery chargers and machinery. Flexible 10/4 SJOOW portable cord: Making an extension cord is essential if you have generators or high power high voltage loads equipment. 10 gauge 4 conductor wire SJOOW cable connects the generator inlet box to the breaker panel, extending the operating range of the welder or generator. Wide-applications : The 10/4 300V 10 gauge 4 conductor SJOOW extension cord works well for outdoor pumps, generators and lighting systems & industrial machinery, welder, plasma cutter and grid power generation & commercial mining, oil and gas exploration,etc. SJOOW electrical wire