In 2007, the Electricity Regulatory Commission system and all units in the power industry earnestly implemented the spirit of a series of important instructions of the Party Central Committee and the State Council on safe production work, guided by the scientific outlook on development, with a high sense of responsibility and a solid and meticulous work style, With concerted efforts and overcoming difficulties, we have maintained the overall stability of power safety production across the country, and successfully completed the safe power supply during the peak summer and the 17th National Congress of the Communist Party of China and other major events. In 2007, there were no major accidents involving personal injuries or deaths from electric power production, no major power grid accidents or more, and no major equipment accidents.

　　In 2007, there were 39 electric power accidents and 79 deaths in the country. This is a decrease of 3 accidents and 3 deaths compared with the same period of the previous year. Among them: there were 16 accidents responsible for personal injury and death in electric power production, with 17 deaths. The number of accidents increased by 3 compared with the same period of the previous year, and the death toll was the same; 23 accidents involving personal injury and death occurred in electric power construction, and 62 people died. The number was reduced by 3 people. In 2007, there were 10 major personal injury and death accidents, all of which were power construction accidents, with 43 deaths. The number of accidents increased by 1 year-on-year, and the death toll decreased by 1 person.

　　In 2007, the number of power grid accidents and equipment accidents across the country dropped significantly. There were 37 grid accidents, a year-on-year decrease of 11; 170 equipment accidents occurred, a year-on-year decrease of 56, including 2 major equipment accidents, the same number of accidents.

　　1. Major personal injury or death accidents:

　　In 2007, there were 10 major personal injury and death accidents in the power construction field, with 43 deaths. They are:

　　1. On January 7, Jiangsu Jiangdu Construction Co., Ltd., a subcontractor of Tianjin Electric Power Construction Company of State Grid Corporation of China, was in the process of construction of the chimney of the self-provided thermal power plant (2 sets of 300 MW units) in Tuoketuo Industrial Park, Inner Mongolia. Poor management of the warm stove, the fire ignited the chimney insulation and antifreeze materials, resulting in the death of 5 people and 2 burns in the process of evacuation from the chimney 25.7 meters to the ground. The main cause of the accident was the weak safety management at the construction site, and the construction plan did not take into account the escape and self-rescue measures of personnel in the event of a fire at height. The accident was identified as a responsible accident.

　　2. On January 12, Wenzhou Tongye Construction Engineering Company, a subcontractor of the Fifth Engineering Bureau of China Water Resources and Hydropower Construction Corporation, was carrying out the construction of the pilot tunnel face of the upward slope section of the pressure pipe at the Jinwo Hydropower Station in Shimian County, Sichuan Province due to blasting. The generated carbon monoxide and other toxic gases overflowed, which caused poisoning of the workers in the face, causing 3 deaths and 4 injuries. The main cause of the accident was the confusion of safety production management at the construction site, the lack of basic safety production conditions at the working face, and illegal operations. The accident was identified as a responsible accident.

　　3. On January 17, when Sichuan Chengdu Hydropower Construction Engineering Co., Ltd. was carrying out the construction of the left bank platform of the reservoir at the Jinping Hydropower Station in Liangshan Prefecture, Sichuan Province, due to about 3,000 meters of rolling rocks outside the construction area, it hit the middle and lower bent and stacked ballast bodies. As a result, part of the bent frame and the horse track connected to the bent frame collapsed, resulting in 4 deaths. The main cause of the accident was the confusion of safety production management at the construction site, no regulations for personnel passing through dangerous areas, no load-bearing signs on the spoil platform, and no warning signs for dangerous areas where rockfall might occur. The accident was identified as a responsible accident.

　　4. On April 10, the Fifth Engineering Bureau of China Railway Engineering Group Co., Ltd. was involved in the site leveling and road construction of the Lianghekou Hydropower Station in Yajiang County, Sichuan. The soil was soft due to continuous rainfall, which caused the slope to collapse and 7 deaths . The main cause of the accident was the lack of understanding of the slope stability by the construction unit, failure to organize the construction in accordance with the clear operation method in the construction technical measures, and the operation in violation of regulations. The accident was identified as a responsible accident.

　　5. On July 22, during the construction of the 500 kV line of the Sichuan Yuechi Power Transmission and Transformation Engineering Company in Longtan, Liuzhou, Guangxi, the wire rope used to fix the steering pulley was broken, whipping three nearby migrant workers who were transporting materials, causing 3 people died. The main cause of the accident was the fatigue damage of the steel wire rope. The operator did not discover its defects in time and operated without a license. The accident was identified as a responsible accident.

　　6. On July 24, the First Engineering Bureau of China Water Resources and Hydropower Construction Corporation was in the construction of the Pushihe Hydropower Plant in Dandong City, Liaoning Province. When an operator took a tricycle through the plant traffic tunnel, the vehicle lost control and collided with the traffic tunnel wall, killing 3 people , 2 people were injured. The main cause of the accident was that the operators violated the regulations on transportation vehicles forbidden to carry people and drove illegally in neutral gear on the downhill section, causing the vehicle to lose control. The accident was identified as a responsible accident.

　　7. On August 5, when the Third Engineering Bureau of China Water Resources and Hydropower Construction Group Corporation was carrying out shotcreting construction at the diversion tunnel of the Jinjiaba Hydropower Project in Youyang County, Chongqing, an engineering vehicle rolled onto the scattered detonators, triggering nearby The explosives exploded, killing 5 people. The main cause of the accident was that the operators randomly placed mixed civilian explosives and detonators at the construction site, management confusion, risky operations, and illegal operations. The accident was identified as a responsible accident.

　　8. On August 24, Jiangsu Jiangdu Construction Engineering Co., Ltd., a subcontractor of Beijing Guodian North China Electric Power Engineering Co., Ltd., during the construction of the main powerhouse of the third phase of the Tangjiazhuang Kengkou Thermal Power Plant in Kailuan, Hebei, the tower body was lifted when the tower was lifted. It broke and fell, killing 6 people. The accident was initially identified as a responsible accident, and the cause of the accident is under investigation.

　　9. On September 18, the 11th Engineering Bureau of China Water Resources and Hydropower Construction Corporation was in the process of constructing the Longkou Water Control Project on the Yellow River in Hequ County, Shanxi Province. When the operators installed the construction tower crane on the left bank of the barrage, the tower body was in the process of lifting The tower crane was bent and broken, causing the tower crane to collapse, causing 4 deaths and 4 injuries. The main reason is that the construction unit has loopholes in equipment management and safety management. The accident was identified as a responsible accident.

　　10. On October 17, the 15th Engineering Bureau of China Water Resources and Hydropower Construction Group Corporation was carrying out slag removal operations at the Malutang Hydropower Station Phase II Project in Wenshan Prefecture, Yunnan Province. The rock mass collapsed, causing 3 deaths and 1 injury. The accident was initially identified as a responsible accident, and the cause of the accident is under investigation.

　　2. Major power equipment accidents:

　　In 2007, there were 2 major equipment accidents, namely:

　　1. On March 7, Zhejiang Formosa Plastics Group Thermal Power (Ningbo) Co., Ltd. (3 150 MW units) Unit 1, 2, and 3 tripped at the same time, and the whole plant was out of power. The cause of the accident was that the self-consumption of the ABS plant that supplied the plant gas increased instantly, the power plant’s supply of air was insufficient, which caused the power plant’s instrument air pressure to drop beyond the limit, and the power plant’s No. 3 air compressor outlet valve setting logic was incorrect. When the pressure dropped, it did not automatically close, and the on-site staff did not know the function of the valve and did not take remedial measures in time, causing the three units to trip at the same time and unplanned outage. The accident was identified as a responsible accident.

　　2. On the morning of April 7, the running units 1 and 3 of China Resources (Changshu) Power Generation Co., Ltd. (3 units of 600 MW units, unit 2 under maintenance) tripped at the same time, and the entire plant was out of power. The cause of the accident was that when the plant's No. 2 main transformer was out of service for maintenance, the copper wire in the grounding switch operation box slipped when the maintenance personnel eliminated the grounding switch defect, causing the AC power supply to be connected to the DC system, resulting in the generator-transformer protection action and the unit Unplanned outage due to trip. The accident was identified as a responsible accident.

　　The main reasons for the reported accidents are non-standard on-site safety supervision, insufficient safety supervision personnel, serious violations; unclear safety management responsibilities of the construction unit, supervision unit, and construction unit, and imperfect safety production assurance system and supervision system ; Poor management of the outsourcing construction team; insufficient safety investment and other issues. These accidents have caused heavy losses to people’s lives and national property. At the same time, they also reflect the serious deficiencies in safety management, safety education, safety technology training, and accident emergency management of the accident units. The safety responsibility system has not been implemented at all levels. Implementation, the lack of safety management and other issues.

　　It is hoped that all electric power companies will earnestly learn from accidents, summarize accident laws, draw inferences from one another, investigate and control hidden dangers in a targeted manner, formulate and implement rectification measures, strengthen emergency management, conduct emergency drills, and resolutely curb the occurrence of major accidents above.