The operation of grabbing beam underwater is the key to the lifting and lowering of the gate.This article pro-vides a detailed introduction to the underwater monitoring system added to the gate grabbing beam control system of a hy-dropower station,which has been successfully applied,effectively reducing the risk of underwater operation of grabbing beams and improving the reliability of gate operation.Suggest adding corresponding requirements for underwater monito-ring in relevant standards and specifications,while providing effective reference for the optimization of safety monitoring systems for lifting equipment in other hydropower stations.
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