本文件规定了通过在灯的底部使用彩色编码绝缘体来识别电压的方法。表1显示了设计电压和相应的绝缘体颜色。所示零件号仅供参考，作为选项。绝缘体颜色应易于区分为绿色、黄色、红色和白色。可根据需要通过修订过程添加其他颜色。

This document defines the method for voltage identification by the use of color-coded insulators at the base of the lamps. Table 1 shows the design volts and corresponding insulator colors. The part numbers shown are for example purposes only, as an option. Insulator colors are to be easily distinguishable as green, yellow, red, and white. Additional colors may be added by a revision process as required.