Aluminum 600V URD cable is designed for use in secondary distribution circuits, where installed in duct or direct burial applications. Maximum operating temperature is not to exceed 90°C in wet and dry locations. Voltage rating is 600 volts. As an option, this cable can provided pre-pulled into duct. Aluminum URD Quadruplex Cable has a concentric strand or compressed 1350-H19 series aluminum conductor. Conductors are cabled together, with surface printing for identification. The neutral conductor has a yellow stripe.