The Ministry of Health issued the “National Work Plan for Monitoring and Monitoring of Drinking Water in 2012” yesterday. The city (county) within 30 km (from the first nuclear island) of a nuclear power plant under construction and under construction should carry out radioactive monitoring of drinking water.

13 Nuclear Power Plants "Enlisted"

In the program, the names of the nuclear power plants that need to be monitored are listed. Among them, the operating nuclear power plants include Tianwan Nuclear Power Station in Jiangsu Province, Qinshan Nuclear Power Station in Zhejiang Province, Daya Bay Nuclear Power Station in Guangdong Province, and Lingao Nuclear Power Station in Guangdong Province.

The nuclear power plants under construction include the Hongyanhe Nuclear Power Station in Liaoning Province, the Sanmen Nuclear Power Station in Zhejiang Province, the Fuqing Nuclear Power Station and the Ningde Nuclear Power Station in Fujian Province, the Haiyang Nuclear Power Station in Shandong Province, the Yangjiang Nuclear Power Station and the Taishan Nuclear Power Station in Guangdong Province, the Fangchenggang Nuclear Power Station in Guangxi Zhuang Autonomous Region, and the Changjiang Nuclear Power Station in Hainan Province. Wait.

The radioactivity monitoring of drinking water around the nuclear power plant, including the monitoring of drinking water in centralized water supply and decentralized water supply (water wells, rivers, lakes, ditch, ponds, etc.), is conducted once in wet and dry periods.

All municipal water supply shall be included in the monitoring. In addition to nuclear power stations, all districts (county-level cities) under the jurisdiction of all provinces, autonomous regions, municipalities, and Xinjiang Production and Construction Corps shall be included in the national drinking water sanitation at least 25% of the counties (county-level cities). Monitoring network.

Among them, all municipal water supply must be included in the national monitoring network. Each factory water plant has one factory water monitoring point. 40 peripheral water monitoring sites are set up in the urban areas of the provincial capital cities, 20 peripheral water monitoring sites are set up in prefectural-level urban areas, and 10 peripheral water monitoring sites are set up in cities and towns at the county or county level. Among them, the percentage of schools' peripheral water monitoring sites is not less than 10%.

DB-S Diode

DBS diode series patch rectifier bridge stack is composed of 4 rectifier diodes connected and packaged in the form of a bridge full-wave rectifier circuit, which belongs to a full bridge. There are four lead-out pins, the connection point of the negative poles of the two diodes is the "positive pole" of the DC output terminal of the full bridge, and the connection point of the positive poles of the other two diodes is the "negative pole" of the DC output terminal of the full bridge. Reverse repetitive peak voltage range: 50V~1000V, average rectified output current 0.8A~1.5A: forward non-repetitive surge current 30A (60Hz sine wave, one cycle, Tj=25°C). For specific parameters, please refer to the specification or consult online customer service.

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