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An operational event at Ling Ao Nuclear Power Station (LNPS) was reported today (May 25) on the website of Daya Bay Nuclear Power Operations and Management Co Ltd (DNMC), a spokesperson for the Security Bureau said today.
Yesterday (May 24), DNMC staff observed during an inspection at Unit 1 of LNPS Phase II that the alarm function of a radiation monitoring device for the plant cooling water system was disabled and could not display the alarm signal. The staff took immediate measures to restore the alarm function. It was confirmed that, during the period in which the alarm was disabled, other functions of the device, including taking measurements and displaying the relevant data, as well as the functioning of other similar devices, remained normal. The radiation level of plant cooling water was also found to be normal. Further investigation revealed that the alarm function was disabled in the previous planned outage in compliance with the necessary plant criteria but was not duly restored. The event has not affected the workers and other equipment of the station.
The event was classified as a "Below Scale Licensing Operational Event" (i.e. "Level 0" event) on the International Nuclear and Radiological Event Scale, and has no effect on the safe operation of the nuclear power station, the health of the workers, the nearby public or the environment. All nuclear generating units at the Daya Bay Nuclear Power Site remain in normal and stable operation.
The DNMC disseminates on its website (www.dnmc.com.cn) news pertaining to the operation and safety issues of both the Guangdong Nuclear Power Station and LNPS for the information of the general public. Details about this event can be viewed at the "operational events" section under the "nuclear and radiation safety information" webpage of the DNMC website.
Ends/Wednesday, May 25, 2016
Issued at HKT 17:09
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