An operational glitch at the Ling Ao Nuclear Power Station in Shenzhen, China, occurred during a routine test on a standby unit undergoing refuelling. Staff inadvertently kept a cooling water isolation valve closed longer than permitted by technical specifications. Hong Kong authorities were notified and confirmed that the incident, classified as a Level 0 deviation, posed no safety risk to the public or the environment. AI
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RANK_REASON This is a minor operational incident at a nuclear power plant that poses no safety risk, not a significant AI-related event.