VDE 0345-3-3-1999 Specification for plastic films for electrical purposes - Part 3: Specifications for individual materials; Sheet 3: Requirements for polycarbonate (PC) films used for electrical insulation (IEC 60674-3-3:1992); German version EN 60674-3-3:1998
IEEE - The Institute of Electrical and Electronics Engineers@ Inc.,关于PC 3的标准