VOLTAGE:600V CAPACITY:2000km/month Single:one XLPE insulated aluminum conductor Duplex:one XLPE insulated phase conductor and one neutral conductor, duplex twisted assembly. Triplex:two XLPE insulated phase conductors and one neutral conductor, triplex twisted assembly. Quadruplex:three XLPE insulated phase conductors and one neutral conductor, quadruplex twisted assembly. Conductors:Class B compressed aluminum 1350-H19 meeting the requirements of ASTM B231. Insulation:The insulation is extruded lead-free Cross-linked Polyethylene (XLPE). The phase conductors are black, and the neutral conductor is black, identified by three extruded yellow stripes.