Abstract: At present, the second round dam safety periodic inspection are implementing in the whole electricpower system. Many defects and perils are detected out for some hydropower stations in use for 20 years in the second round periodic inspection. This paper analysed the safety conditions of hydraulic steel gates and hoists of 28 hydropower stations, indicating that it is urgent for hydropower plants to timely strengthen or renovate the gates and hoists which have serious defects and perils.?

摘要： 目前电力系统水电站正在进行第二轮大坝安全定检期检查，定检中发现运行20 a 以上的水工钢闸门和启闭机存在许多缺陷和隐患。本文通过对28座水电站水工钢闸门和启闭机安全现状分析，指出对有严重缺陷和隐患的闸门及启闭机，及时加固处理或更新改造，将是目前电厂亟待解决的问题。