除了IEC 60077-2的一般要求外，IEC 60077的本部分还给出了断路器的规则，断路器的主触点连接到直流电源和/或辅助电路。根据IEC 60850，这些电路的标称电压不超过3000 V DC。交叉引用:EN 61373IEC 61373IEC 60529EN 60077-1:2017IEC 60077-1:2017IEC 60077-2:2017EN 60077-2:2017IEC 60571IEC TR 60943IEC 60850EN 60947-2IEC 60947-2IEC 61992-2IEC 60050-441:1984IEC 60050-441:1984/AMD1:2000IEC 61992-1:2006/AMD1:2014购买本文件时可提供的所有现行修改件均包含在购买时。

In addition to the general requirements of IEC 60077-2, this part of IEC 60077 gives the rules for circuit-breakers, the main contacts of which are connected to DC power and/or auxiliary circuits. The nominal voltage of these circuits does not exceed 3 000 V DC according to IEC 60850.Cross References:EN 61373IEC 61373IEC 60529EN 60077-1:2017IEC 60077-1:2017IEC 60077-2:2017EN 60077-2:2017IEC 60571IEC TR 60943IEC 60850EN 60947-2IEC 60947-2IEC 61992-2IEC 60050-441:1984IEC 60050-441:1984/AMD1:2000IEC 61992-1:2006/AMD1:2014All current amendments available at time of purchase are included with the purchase of this document.