China News Service, September 23. According to the website of the National Energy Administration, in the second quarter of 2020, there were no major electrical personal injuries or deaths across the country, no power system hydropower dam collapses, flooding, or incidents that have a major impact on society. .
In the second quarter, there were 13 electric power accidents and 19 deaths in the country. The number of accidents decreased by 1 year-on-year, and the death toll increased by 2 people year-on-year. Among them, there were 8 electric power production accidents and 11 people died. The number of accidents decreased year-on-year. There were 3 cases, the death toll decreased by 3 people year-on-year; there were 5 personal injuries and deaths in power construction, and 8 people died. The number of accidents increased by 2 and the death toll increased by 5 people.
There were no electrical equipment accidents with a direct economic loss of more than 1 million yuan, which was the same year-on-year.
There were 3 power safety incidents, an increase of 2 from the same period last year.
Accident sequence
1. Enterprise
(1) Member units of the National Electric Power Safety Committee:
State Grid Co., Ltd. has suffered a major electric power personal injury and death accident, with 3 deaths;
There were 3 electric power casualties and 4 deaths in the State Energy Investment Group Co., Ltd.;
China Huaneng Group Co., Ltd. suffered 2 electric power casualties and 3 people died;
Zhejiang Energy Group Co., Ltd. had an electric power casualty accident with one death;
In Inner Mongolia Electric Power (Group) Co., Ltd., there was one electric power casualty accident and one person died;
One power safety incident occurred in China Southern Power Grid Co., Ltd.;
One power safety incident occurred in the State Power Investment Corporation;
One power safety incident occurred in Beijing Energy Group Co., Ltd.;
(2) Other units
Anhui Provincial Investment Group Holding Co., Ltd. Yinjiang Jihuai Engineering Co., Ltd. suffered an electric power personal injury and death accident with 2 deaths;
Ningxia Electric Power Investment Group Co., Ltd. Xixia Thermal Power Co., Ltd. suffered one electric personal injury and death accident with 2 deaths;
An electric power personal injury and death accident occurred at the Chenzhou branch of Hunan Chendian International Development Co., Ltd., with one death;
One electrical personal injury and death accident occurred at the Badaogou Power Supply Station of Changbai County, Jilin Province Local Hydropower Co., Ltd., with one death;
Guangxi New Electric Power Investment Group Co., Ltd. Jingxi Water Conservancy and Electricity Co., Ltd. electric power personal injury and death accident involving 1 person;
2. Area
There was 1 major electrical personal injury and death accident in Shanxi Province with 3 deaths;
In the Inner Mongolia Autonomous Region, there were 2 electric power casualties, 2 deaths, and 1 electric safety incident;
There were 2 electric power casualties and 2 deaths in Jilin Province;
There were 2 electric power casualties and 2 deaths in Hunan Province;
1 electric power accident occurred in Anhui Province with 2 deaths;
There was one electrical personal injury and death accident in Guizhou Province with two deaths;
There was 1 electric power casualty accident and 2 deaths in Qinghai Province;
There was one electric personal injury and death accident in Ningxia Hui Autonomous Region, with 2 deaths;
1 electric power accident occurred in Zhejiang Province with 1 death;
There was one electrical personal injury and death accident in Guangxi Zhuang Autonomous Region, with one death;
One power safety incident occurred in Guangdong Province;
One power safety incident occurred in Shandong Province.
Analysis of the cause of the accident
The number of accidents in the second quarter decreased by 1 compared with the same period last year, and the death toll increased by 2 year-on-year. Among them, falling from height caused 3 accidents and 4 deaths, lifting injuries caused 2 accidents and 4 deaths, and electric shock caused 3 accidents and 3 people. Death, collapse caused 2 accidents and 3 deaths, poisoning and suffocation caused 1 accident and 2 deaths, object strike caused 1 accident and 1 death, electric pole collapse caused 1 accident and 1 death, container explosion caused 1 accident1 People died; human unsafe behavior caused 9 accidents and 14 deaths, and the unsafe state of things caused 4 accidents and 5 deaths.
The above incidents exposed the failure of the relevant power companies to effectively implement the supervision and management responsibilities of the owner units, the lack of strict inspections on the entry of outsourced teams, the format of education and training, and the absence of high-risk job site supervision.
Some enterprises have insufficient professional skills and unsatisfactory attitudes, unclear knowledge of equipment defects, and treatment of hidden dangers but not the root cause, resulting in hidden dangers eventually escalating into accidents.
Some companies have limited safety supervision methods, with more penalties and less accountability, resulting in a fluke mentality among operators and repeated prohibitions on violations.
In addition, the report also introduces the accidents in the second quarter of 2020.
Personal injury accidents in power production
On 1.4, Anhui Provincial Investment Group Holding Co., Ltd. suffered a personal injury and death accident in the Jiang-Ji-Huai-JiHuai construction project of Anhui Investment Group Holding Co., Ltd., and 2 people died.
State Grid Anhui Power Transmission and Transformation Engineering Co., Ltd. undertakes the construction of the power tower relocation project for the construction of the river diversion from the Yangtze River to the Huaihe River. In the case of temporary pull lines for No. 130 tower, all the four main materials of the original tower legs of No. 130 tower are cut off, and then the traction ropes set on the A and D sides of the tower are tightened by a motorized winch. Direction) Remove the tower as a whole.
As there were no directional temporary cables on both sides of the old tower, the original 130 tower lost control of its direction during the dumping process, and fell to the side conductors of the newly built No. 129-130 line, breaking the left middle and lower left phase conductors of the newly built line, resulting in 1 new line The installer of the wire attachment was killed by the wire slamming, and another person was seriously injured and killed by falling to the ground due to a broken rope.
2.4 On 20th, the Wuchuan Power Supply Branch of the Hohhot Power Supply Bureau, a subsidiary of Inner Mongolia Electric Power (Group) Co., Ltd., suffered an electric shock accident for a labor dispatcher, and 1 person died.
On April 20, after replacing the 10 kV transformer at the Dongtucheng Power Supply Station of the Wuchuan Power Supply Sub-bureau, the low-voltage side switch fuse of the transformer was blown during the power transmission process, and then the operators conducted a low-voltage line inspection.
During the line inspection, a labor dispatch operator boarded the newly installed transformer, causing death by electrocution.
On March 9, a personal injury accident occurred in China Huaneng Hunan Yueyang Power Generation Co., Ltd., and one person died.
An employee of Keneng Construction Co., Ltd., an outsourcing unit for the maintenance of Unit 6 of Yueyang Power Plant, entered the area of the insulation layer on the top of the furnace roof bale when he went to the furnace roof of the operating Unit 5 to take the rubber pad. The insulation layer collapsed locally, causing the operator Falling into the top of the furnace to death.
On 26th, a personal injury accident occurred in Jilin Provincial Local Hydropower Co., Ltd. One person died.
Jilin Provincial Local Hydropower Co., Ltd., Changbai County, Baishan City, Badaogou Power Supply Station, during the emergency repair of the 10kV Beimeng Line 067 pole A phase from the insulator, an operator was electrocuted while dragging the wire up on the pole death.
On June 12, Anshun Power Generation Co., Ltd. of the National Energy Group Guodian Guizhou Electric Power Co., Ltd. suffered a personal injury and death, and 2 people died.
Henan Huatai Construction Co., Ltd., a professional subcontractor of Anshun Power Generation Co., Ltd., during the process of dismantling the scaffolding in the cooling ash hopper of the No. 1 furnace, the temporary transportation channel in the furnace collapsed, and 4 professional subcontractor operators on the channel fell to the furnace Above the shut-off door at the bottom, 2 people died after rescue efforts failed.
On June 18, a personal injury accident occurred in the National Energy Group Guodian Northeast Electric Power Co., Ltd. Jilin Jiangnan Thermal Power Co., Ltd., and one person died.
The professional subcontractor of Jilin Jiangnan Thermal Power Co., Ltd., Harbin Longyang Electric Power Metallurgical Equipment Manufacturing Co., Ltd., when the No. 2 furnace No. 2 coal pulverizer was overhauled, the maintenance personnel were not on the scene after the maintenance personnel replaced the sealing rubber ring of the grinding roller bearing chamber In the case of circumstance, dangerous oxygen was used to carry out the reloading and pressure test, an explosion occurred, and the lubricant seal rubber ring flew out and injured the head and right hand of a professional subcontracting unit operator. The rescue was invalid. death.
On July 23, Ningxia Electric Power Investment Group Co., Ltd. Xixia Thermal Power Co., Ltd. suffered a personal injury and death accident and two people died.
During the renovation and construction of the air cannon nozzles in the second-phase coal storage silo of Xixia Thermal Power Company, four operators from Hebei Hongshan Heavy Industry Co., Ltd., a professional subcontractor, entered the coal storage silo without permission without permission. The installation of the interlayer between the inner and outer walls of No. 5 silo caused two deaths due to carbon monoxide poisoning.
8.6 On 26th, Zhejiang Energy Group Wenzhou Power Generation Co., Ltd. suffered a personal injury and death accident, and 1 person died.
During the cleaning process of Wenzhou Power Generation Co., Ltd. in the large ash storage No. 3, an operator of Xintianyi Group Co., Ltd., a labor subcontractor of the cleaning construction, was buried by the collapsed ash pile and died after rescue.
Personal injury accidents in power construction
On April 6, a personal injury accident occurred in the Gonghe 50,000-kilowatt wind power project of the New Energy Branch of China Huaneng Qinghai Power Generation Co., Ltd. and two people died.
During the construction of this wind power project, Shandong Jinhua Construction Group Co., Ltd., a subcontractor of Shandong Jinhua Construction Group Co., Ltd., changed the construction plan without authorization when it demolished the wind measurement tower near the foundation of the M2 wind turbine. The cable wind rope at the top of the fifth section of the wind tower caused the remaining five sections to suddenly collapse, and two operators on the tower died when the wind measurement tower collapsed.
2.4 On 23rd, a personal injury accident occurred in the construction project of Shengli Power Plant of Shengli Energy Branch of National Energy Group China Shenhua Energy Co., Ltd., and one person died.
Northeast Electric Power First Engineering Co., Ltd., a subsidiary of China Energy Construction Group Northern Construction Investment Co., Ltd. During the construction of the power plant, when the second baffle plate of the low pressure cylinder of the No. 2 unit was hoisted on the steam turbine platform, the baffle fell to On the sleeper of the steam turbine platform, the partition fell outwards, hitting a lifting commander who did not evade in time, and died after rescue.
On March 11, a major casualty accident occurred in the 1000 kV Mengxi-Jinzhong UHV AC Project (Shanxi Section) of the State Grid Corporation of China, and 3 people died.
The construction unit State Grid Hunan Transmission and Transformation Engineering Co., Ltd. was in the process of constructing the project, and the labor subcontractor Hunan Yuanchang Power Construction Co., Ltd. operated personnel in the process of erecting the pole at the No. 5L059K tower of the No. 7 bid section of the project. The pole fell over, causing 3 workers on the pole to fall and died after rescue.
On 4.5 11, a personal injury accident occurred in Hunan Chendian International Development Co., Ltd. One person died.
The construction unit Hunan Chenzhou Electric Power Co., Ltd. occurred during the renovation and upgrading of the rural power grid at the fourth group of Liyuan Village, Huatang Town, Beihu District, Chenzhou City. A pole inverted accident occurred. One person is lifting the pole climbing operation of the porcelain bottle tie The personnel fell and died.
On June 17, Guangxi New Power Investment Group Co., Ltd. Jingxi Water Conservancy and Electricity Co., Ltd. suffered a personal injury and death accident and 1 person died.
The 35 kV Lvping-Longbang transmission line project constructed by Guangxi New Power Investment Group Co., Ltd.'s subsidiary Jingxi Water Conservancy and Electricity Co., Ltd. The construction unit Henan Hengrun Power Engineering Co., Ltd. is erecting one of the new poles 006 to 014 Before the construction of the 10-kilovolt Longjing Line, a construction worker was electrocuted when he boarded the 10-kilovolt Longjing Line without power failure or electrical inspection.
Electricity safety incident
1.4 On 23rd, Inner Mongolia Jinglong Power Generation Co., Ltd., a subsidiary of Beijing Jingneng Electric Power Co., Ltd., suffered a power outage of the entire plant.
At 15:13 on April 23, the only 500 kV line of Jinglong Power Generation Co., Ltd. was tripped in Datong City, Shanxi Province due to a cable crash with a crane. This caused the entire plant to lose power and lost 380,000 kilowatts of output.
At 16:5, Jinglong Power Plant resumed power supply.
On 25th, a bipolar lock-up event occurred on the ±500kV Xing’an DC line of China Southern Power Grid Co., Ltd. EHV Transmission Company.
At 7:19 on May 25th, a lightning strike caused resonance to cause ±500 kV Xingan DC bipolar lockout, and a power loss of 3 million kilowatts.
At 2:7 on the 26th, Xing'an DC Bipolar resumed normal operation.
On March 24, a unit trip occurred in the Haiyang Nuclear Power Plant of Shandong Nuclear Power Co., Ltd. of the State Power Investment Corporation.
At 21:14 on June 24, during the process of Haiyang Nuclear Power Plant's handling of the failure defect of the excitation system channel 1 of Unit 1, when the maintenance personnel restored the excitation channel 1 to control and measure the power output line of the communication board, the pins of the power line touched the metal outer wall of the socket. The positive pole of the 24V power supply was grounded, causing all channels 1, channel 2, and the backup manual channel to lose power, triggering a failure of the excitation system, causing the unit to non-stop and losing 1.238 million kilowatts of output.
At 5:50 on June 25, the unit resumed grid connection.
The report also pointed out that in the first half of the year, there were 17 electric power casualties and 23 deaths across the country. The number of accidents decreased by 1 year-on-year, and the death toll increased by 2 people year-on-year. Among them, there were 10 deaths and injuries caused by electricity production, 12 deaths, and accidents. The number of incidents decreased by 5 year-on-year, and the death toll decreased by 6 year-on-year; there were 7 personal injury and death accidents in power construction, with 11 deaths, the number of accidents increased by 4 year-on-year, and the death toll increased by 8 people.
There was 1 power equipment accident with a direct economic loss of more than 1 million yuan, a decrease of 1 year-on-year.
There were 6 power safety incidents, an increase of 2 from the same period last year.
At the same time, the report puts forward the following requirements based on the characteristics of recent accidents and the key work of safety supervision in the next stage.
(1) Strictly implement the "three-party" safety management responsibilities at the job site.
First, the owner unit must strictly review the qualifications of the subcontractor and special operations personnel, sign a safety agreement with the subcontractor and the supervision unit, clarify the safety responsibilities of each party, and strengthen the supervision of operation site personnel in violation of regulations and supervision of high-risk operations; Construction and maintenance units must improve the safety management system, improve the on-site safety management system, organize the preparation of special construction plans and safety measures for high-risk operations, strengthen accident emergency drills, and strictly implement various management requirements put forward by the owner unit.
Third, the supervision unit should assist the owner unit in reviewing whether the organization design, safety measures, and emergency response plan comply with mandatory standards, check the implementation of on-site safety measures, implement side-by-side supervision for high-risk operations, and strictly control on-site safety and quality.
(2) In-depth development of risk identification management and control work on site.
First, we must continue to do a good job in preparing and reviewing the standard ticket library of operation tickets and work tickets to ensure that the execution steps and control of dangerous points meet the requirements of safety regulations and the actual characteristics of the operation. We must strengthen the dynamic inspection of the "two tickets" implementation and resolutely put an end to it. No ticket job.
The second is to refine the risk identification management and control process of the unit, urge operators to form good behaviors of "talking about tasks", "talking about risks" and "talking about measures" before starting work, and gradually establish and improve emergency response cards for different operations.
The third is to study and formulate a hierarchical control list of high-risk operations of the unit, and the owner unit must arrange for special personnel to guide and guard during high-risk operations.
(3) Improve the safety management and control capabilities of the work site.
First, all relevant units and subcontractors must have the number of personnel in the safety supervision system and assurance system, combined with the characteristics of the unit and the project, fully learn from accidents inside and outside the industry, carry out centralized and point-to-point safety training, and publicize and implement safety technical standards , Improve the law enforcement and supervision capabilities of safety managers.
Second, the operation and maintenance personnel should be familiar with the principles and structures of the equipment under their jurisdiction, as well as the safety precautions during operation, and safety clarifications must be made before major operations.
New entrants and on-site staff shall implement "must entrance examinations" and "dynamic random examinations", and those who do not grasp the risks and measures are strictly prohibited from taking up positions.
(4) Do a good job in production safety during the normalization of epidemic prevention and control.
The first is to dynamically grasp the ideological trends of employees, pay attention to the mental health of employees, carry out psychological counseling and condolences, and avoid getting sick to work.
The second is to always establish the "safety first" development concept, scientifically and rationally arrange the construction plan, and strictly prohibit the rush to schedule and super-strength schedule tasks.