Railway applications - fixed installations ; d . c . switchgear - part 6 : d . c . switchgear assemblies ; german version en 50123 - 6 : 2003 铁路设施.固定设备.直流开关装置.第6部分:直流开关装
For laying indoors , in trenches , in ducts and down well , able tobear heavier pulling force , andfor fixed installation 敷设在室内、电缆沟、管道、竖井等能承受较大机械拉力等固定场合。
Railway applications - fixed installations - harmonisation of the rated values for converter groups and tests on converter groups 铁路设施.固定装置.变流器组额定值和变流器组试验的一致性
Railway applications - fixed installations - harmonisation of the rated values for converter groups and tests on converter groups 铁路设施.固定式装置.变流器组额定值和变流器组试验的一致性
Railway applications - fixed installations ; electric traction - copper and copper alloy grooved contact wires ; german version en 50149 : 2001 铁路设施.固定装置.电力牵引.铜和铜合金波纹接触线