Thermoplastic-insulated copper wire with a nylon covering and SLiPWire™ Technology for fast and easy pulling in conduit. This 90°C, 600 volt building wire is for use in residential, commercial and industrial applications. Intended for use in accordance with the National Electrical Code® in both wet and dry locations. Conductors 8 AWG through 1 AWG are marked VW-1 and 1/0 AWG through 1000 kcmil are rated for use in cable tray.