Railway applications - fixed installations - part 1 : protective provisions relating to electrical safety and earthing 铁路设施.固定设备.第1部分:电气安全和接地相关的保护性措施
Railway applications - fixed installations ; dc switchgear - part 3 : indoor disconnectors and switch disconnectors 铁路设施.固定装置.直流开关设备.第3部分:室内断路器和开关断路器
Railway applications - fixed installations - part 1 : protective provisions relating to electrical safety and earthing 铁路设施.固定设备.第1部分:与电气安全和接地有关的防护设备
For laying indoors , in trenchesin ducts and in ground , able tobear heavier pulling force , andfor fixed installation 敷设在室内、电缆沟、管道、直埋等能承受较大机械外力等固定场合。
For laying indoors , in trenchesin ducts and in ground , able tobear heavier pulling force , and for fixed installation 敷设在室内、电缆沟、管道、直埋等能承受较大机械外力等固定场合。