The paper adopts the capacitance flow limiting method and DC resistance detection method for the short circuit fault,explores the faults at the road lamps,analyzes the broken scopes for the broken faults,and points out factual troubleshooting methods,so as to provide some reference for the maintenance of road lamps.%采用电容限流法与短路故障直流电阻检测法，对路灯线路短路的故障点进行了探讨，并对路灯断路故障的断线范围进行了分析，进而提出了具体的排查方法与步骤，为路灯的维修工作提供参考。
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