This product was designed to meet or exceed test requirements called for by Underwriters Laboratories and the National Electric Code.• It is recommended for use in accordance with UL and CSA for internal wiring.• The extra flexible conductors with soft drawn tinned copper meet ASTM Specification B172• It is also suitable for use in transformers, switchboard panels, controls, electronic circuits, and as battery cable, battery charge cable, motor lead, and power hook up cableInsulation:• This product offers a unique flame retardant polyvinyl chloride compound (VW-1) and is moisture, abrasion, acid, diesel fuel, and oil resistant.• It is extremely flexible and easy to work with,• Standing: Class K Tinned Copper• Standard: UL 1426, UL Listed BC-5W2• Voltage: 600/1000 Volts• Temperature: 105°C Dry, 75°C Wet