Among the four electrical power system mentioned before, the most economical and reasonable one is the overheadcontact voltage power supply which is supplied by the overhead contact directly.
在所设置的四种供电系统中,由接触网电压直接供电的网压电源是最经济、最合理的供电系统。
2
The overhead bridge in electric railway is an important factor for the contactsystem to operate in a safely and reliably.
电气化铁道跨线桥是影响接触网安全可靠运行的一个重要因素。
3
Research methods:The analysis is made for the present situation of catenary of overheadcontact wire system and main measures against wear of it.