BH GSO IEC 60269-2:2015 低压熔断器 第2部分:授权人员使用熔断器的补充要求(主要用于工业应用的熔断器) 熔断器 A 至 K 标准化系统示例
Low-voltage fuses – Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K