Summary of lightning protection work (selected 6 articles)
Time flies, and the hard work has come to an end. During this period, I believe everyone is facing many things. Challenged and gained a lot of growth, let’s compile past achievements into a work summary. So how is a general work summary written? The following is a summary of lightning protection work that I compiled (selected 6 articles). You are welcome to share it.
Summary of lightning protection work 1
1. Basic situation analysis of the line
As of the end of December 20XX, the 500kV transmission line operated and maintained in Northeast Chongqing*** There are 7 lines in total, with a total length of 728.1km and 1,543 tower bases.
The terrain of the 500kV lines under the jurisdiction of Northeast Chongqing is complex, and lightning strikes are frequent in mountainous areas, which has adverse effects on the safe operation of the lines: among them, the hilly terrain lines account for 41.2% of the total length, and the mountainous terrain accounts for 31.2%. 5%, and high mountains and ridges account for 27.3%; according to the terrain conditions, the terrain conditions of the lines under the jurisdiction of Northeast Chongqing are relatively harsh, with terrain above mountains accounting for more than half of the total length, and mountainous areas are areas prone to lightning strikes; therefore, Due to the restriction of terrain conditions, the situation of lightning damage in Northeast Chongqing is severe, and the task of lightning protection is extremely arduous.
The lightning protection design margin of the 500kV line in Northeast Chongqing is low, resulting in poor lightning resistance after the line is put into operation: the average weight of the entire line of towers is 16.6t, the average height is 34.1m, and the total height is 43. 4m. Due to the high tower height, it is easy to cause lightning strikes in mountainous terrain; the average protection angle of straight towers is 11.4°, and the average design value of grounding resistance is 15Ω. Because the lightning protection level considered in the original design is inherently low, the 500kV line itself Low lightning strike resistance.
2. Statistics on lightning damage
In 20XX, the lines under the jurisdiction of Northeast Chongqing had 2 lightning strikes, and the lightning tripping rate was 0.27 times per 100 kilometers/ year, lower than the State Grid Corporation of China's target value of 0.14 times per 100 kilometers per year. The circumstances of the line being struck by lightning are as follows:
(1) At 1:49 on April 19, phase B of the 500kV Wanlong Line tripped and reclosed successfully. During the inspection, the inspectors found that there were obvious discharge marks on the surface of the 1st, 3rd, 5th, and 8th pieces of the 500kV Wanlong Line #92 Tower B-phase porcelain insulators. There were also discharge marks on the voltage equalizing ring. There were no discharge marks on the grounding connection point. It was confirmed that This is the phase B fault point of Wanlong Line 1. From the analysis of the fault tripping situation, combined with the traveling wave ranging, fault recording and lightning positioning system data, the continuous thunderstorm weather in the involved area is consistent with the characteristics of lightning faults.
(2) At 7:40 on September 17, phase C of the 500kV Huangwan Second Line tripped and was successfully reclosed. The inspection team found that the 500kV Huangwan Second Line #320 Tower C-phase composite insulator string had very obvious typical lightning arc burn marks. There was a melting point with a diameter of 0.5CM on the voltage equalizing ring and multiple arc burn marks. After on-site measurement, the grounding resistances of legs A, B, C, and D of the tower were 1.4, 1.5, 1.5, and 1.5Ω respectively. The line fault tripped due to thunderstorm weather. Based on the fault tower inspection, the results of lightning information query, and the feedback from residents along the line, it is extremely likely that the line tripped due to lightning strike. The on-site inspection showed that there were no abnormal conditions such as crossings, tree obstructions, or strong winds. The surface of the insulator was very clean, and other types of faults other than lightning strikes could be ruled out.
3. Analysis of Lightning Protection Situation of Northeast Chongqing Institute
1) The 500kV overhead transmission line of Northeast Chongqing Institute has achieved remarkable results in controlling lightning counterattack faults through the detection and rectification of grounding devices. .
The average design grounding resistance of the lightning strike towers in Northeast Chongqing is 15Ω, which can only meet the requirements of general counterattack lightning resistance level (125kA ~ 175kA); to prevent lightning counterattack, the lightning resistance level of the line can be improved by reducing the grounding resistance To achieve this, the Yudongbei Institute passed the annual ground resistance test before the summer peak, and processed the towers with unqualified ground resistance, and better controlled the lightning resistance level of the 500kV transmission line against counterattack, effectively preventing the line from counterattack:
2) The high lightning tripping rate is related to the height of the tower, the number of protection angles, and the terrain factors of the tower. The 500kV line tower in Northeast Chongqing lacks effective protection measures for shielding lightning due to design reasons and terrain factors: < /p>
To reduce shielding tripping, we can start from two aspects, improve the lightning resistance level of the line U50% or reduce the probability of wire shielding by changing the number of protection angles. Once the line is built, there are basically two measures to improve the lightning resistance level. One is to reduce the impact ground resistance of the tower grounding body, and the other is to appropriately increase the number of insulators to increase the U50% discharge voltage. The maximum shielding current of a typical 500kV tower is 50kA. Increasing the 50% discharge voltage of the insulator string by 10% will reduce the number of lightning flashes in this part by approximately 13.2%. Reducing the number of line protection angles has the most obvious effect on reducing line shielding tripping rates: from statistical data, the average protection angle of straight towers at line lightning strike points is 10.5°, and the average design creepage is 2.56cm/kV. It cannot Meet the requirements for the lightning tripping rate of the line; it can be seen from the calculation that when the 500kV line protection angle starts from 10.5° and decreases in steps of every 5°, the calculated lightning tripping rate will be doubled.
Every year before the peak of summer, Yudongbei Institute completes 100% of the planned grounding resistance testing rate of 500kV lines, and rectifies 100% of those who fail to meet the standards. The ground network rectification work is carried out smoothly, and the impact is reduced Certain results have been achieved in terms of ground resistance. By installing controllable lightning rods and anti-blitz lightning rods, certain results have been achieved in protecting lines from lightning and shielding.
Yudongbei Institute is mainly responsible for the operation and maintenance of the 500kV lines that have been put into operation in Chongqing. After the lines are put into operation, they want to increase the number of insulators and change the layout of the tower head ground wires. , to improve the lightning resistance level of the line or reduce the line protection angle, thereby achieving the purpose of reducing the lightning shielding tripping rate of the 500kV line. Due to the constraints of the existing line channels, electrical distance, construction feasibility and other conditions, implementation is extremely difficult. Therefore, the lightning protection work of 500kV lines should be fully considered and demonstrated at the beginning of the design, so as to avoid various passivities in line lightning protection during the operation and maintenance of Northeast Chongqing. Summary of lightning protection work 2
In the spirit of being extremely responsible for the lives and property of teachers, students and employees, we firmly establish the idea that safety comes first and responsibility is heavier than Mount Tai, clarify the responsibilities of lightning protection work in kindergartens, and ensure that in the event of lightning In order to deal with disasters promptly, quickly and effectively, this plan is formulated based on the actual situation of our park.
1. Establish a lightning protection leading group
Team leader:
Deputy team leader:
Members:
2. Responsibilities of the leadership group and each class
1. The leadership group is responsible for the mobilization, organization and coordination of lightning protection work in the park. Supervise each class to implement lightning protection plans and ensure necessary funds. Do a good job in the work of faculty and staff, organize, coordinate and implement lightning protection education and logistics reserve work in the park.
2. Each class should supervise the implementation of lightning protection emergency plans according to work arrangements.
3. Strengthen inspections of facilities and equipment.
3. Emergency response
When thunder and lightning occurs, especially when thunderclouds move closer to the sky and you hear thunder or see lightning, you should take the following preventive measures. Reduce or avoid casualties or property losses to a large extent.
(1) Disconnect the power supply and signal input and output of electrical appliances and electronic information systems.
(2) Organize children well, stabilize their emotions, and reduce panic and fear.
(3) Do not answer or make calls or mobile phones.
(4) Do not use faucets, showers and other spray equipment.
(5) Close doors and windows, do not stand in front of exterior windows, and do not touch antennas, sewer pipes, metal doors, windows, guardrails, etc.
(6) Stay away from live facilities, open and isolated buildings, trees, etc.
IV. Emergency rescue for lightning disasters
1. After an accident occurs, members of the emergency leadership team should rush to the scene of the accident as soon as possible and follow the formulated emergency rescue plan to conduct self-rescue or rescue:
(1) When lightning strikes cause casualties, fires, or explosions , promptly implement emergency countermeasures such as fire protection, medical rescue, evacuation, traffic control, security, emergency repairs, and material supply, and strive to ensure the safety of personnel;
(2) Immediately report to the local government, education bureau, and lightning The Disaster Prevention Leading Group Office reports the disaster situation;
(3) Protect the site and ensure that communication equipment is in good condition, and main information communication inside and outside and up and down is smooth.
2． After receiving the lightning accident report, the Office of the Lightning Protection Leading Group immediately reported it to the District Education Bureau and organized relevant personnel to rush to the scene to establish an accident handling on-site command center. The commander of the command center was the top leader who rushed to the scene to handle the emergency and disaster relief accidents. Implement unified command.
3. Participate in emergency rescue work and carry out rescue under the unified command of the accident emergency headquarters. There must be no delay or shirk. Effective measures should be taken to reduce accident losses and prevent the accident from spreading:
(1) Immediately organize the rescue of victims personnel, organize evacuation or take other measures to protect other personnel in the dangerous area and eliminate danger;
(2) Quickly control the source of the hazard.
5. Lightning Disaster Accident Report
When a lightning disaster accident occurs, the person involved in the accident or the person who discovered it should immediately report to the unit leader. In emergencies, the police should be called. When there are casualties, fires, or explosions, The scene should be protected and rescue of people and property should be organized quickly. The lightning protection leading group should report to the superior authority. Lightning protection work summary 3
Under the correct leadership of the superior authorities, we must conscientiously implement the spirit of the superior lightning protection and lightning protection work instructions, continuously improve and perfect working methods, improve safety prevention capabilities, and reduce accident risks to The lowest index provides the greatest possible safety guarantee to ensure that the development of the school is not affected.
1. Attaching great importance to and actively promoting lightning protection safety
We mainly implement this work from the following aspects.
1. Establish a lightning protection and lightning protection safety leading group to uniformly lead, coordinate and organize schools to carry out lightning protection safety education. Promote lightning protection safety through meetings. The school insists on holding regular lightning protection safety work meetings to analyze problems, discuss measures and arrange work. A detailed analysis of safety issues, including school lightning protection safety, was made, and many issues requiring attention were raised.
2. Organize educational activities on lightning protection and electricity safety knowledge. The school organizes special lectures on lightning protection knowledge and runs special columns to deepen students' impressions. Students have mastered basic lightning protection safety knowledge and enhanced lightning protection safety awareness. The school also conducted lightning protection and self-rescue training for all faculty, staff and students, and conducted practical drills, so that all faculty and staff mastered the correct methods and techniques of lightning protection and self-rescue, and comprehensively improved the lightning safety awareness of teachers and students and the prevention of drowning and prevention. The actual ability of thunderstorms has further promoted the school’s lightning protection education work.
3. A systematic and comprehensive lightning protection safety inspection was conducted among the teachers, students and staff of the school. A comprehensive inspection of all important parts and facilities of the school was conducted.
4. Teachers insist on publicizing knowledge about lightning protection and lightning protection and strengthen students’ safety education.
2. Promote the lightning protection safety responsibility system and fully implement management responsibilities and specific measures
1. Determine key locations and clarify the person in charge of key locations.
2. Increase inspection efforts.
3. Swimming must be accompanied by parents.
4. During holidays, students should stay away from deep water sources such as ditches and lakes.
3. Develop a lightning protection safety emergency plan
Safety responsibilities are more important than Mount Tai, and fire and lightning protection safety is no small matter. In order to enable students to effectively avoid lightning and floods, lightning protection and drowning self-rescue drills are held. , in order to effectively control students' hidden dangers at the first time, ensure that students can stay calm in danger, avoid dangers scientifically, and reduce the occurrence of blindness, panic, mutual injury and self-injury accidents, the school organizes lightning protection and anti-drowning safety drills.
4. The alarm bell always sounds, do your work carefully and concretely
In order to avoid the occurrence of various unsafe factors, teachers must conduct a safety education one minute before school every day. It is stipulated that students are not allowed to bathe in the water or play in ditches and lakes. The school’s on-duty teachers inspect the campus every day for potential safety hazards and nip all unsafe factors in the bud.
Due to clear understanding and measures in place, our school has never had any drowning safety accidents in the past year. Safety is paramount above all else, and the work of lightning protection and lightning protection has a long way to go and is not something that can be done once and for all. While strengthening daily work management and summarizing stage situations, we have established a safety awareness to prevent problems before they occur. Every teacher can care about lightning protection and lightning protection safety. With the joint efforts of the entire school staff, the Central Primary School will do a better job in lightning protection and lightning protection safety. Summary of Lightning Protection Work 4
In order to conscientiously implement the spirit of the Municipal Education Bureau's "Notice on Lightning Protection Safety Work in Primary and Secondary Schools in the City", avoid or reduce the losses caused by lightning disasters to school property, and protect teachers and students For life safety, our school has launched a school-wide inspection of lightning disaster safety prevention activities since September 12th. The inspection education and self-examination are summarized as follows:
1. Attach great importance and improve the awareness of Understand the importance of lightning protection
In recent years, lightning in our city has continued to intensify, and injury accidents can occur at any time. In addition, the number of electronic facilities in our park has continued to increase in recent years, making the task of lightning protection even more arduous. At present, the lightning protection awareness and lightning protection facilities of faculty, staff and students are relatively weak, and there are great safety risks. In this regard, our park attaches great importance to this work, firmly establishes the awareness of "cherishing life, safety first", adheres to the people-oriented attitude, and is highly responsible for the safety work of the park. It effectively puts safety education on the agenda and carefully organizes it. , careful arrangements, and strive to achieve tangible results in lightning protection safety. A lightning protection safety working group has been established, with the director as the team leader and the deputy director as the deputy team leader. They work in accordance with lightning protection requirements. Organization members are responsible for organizing lightning protection safety work within their respective scopes. After receiving the document issued by the superior department, we immediately organized all the school staff to study carefully, fully understand the importance and urgency of lightning prevention and disaster reduction work, actively study preventive measures according to the school's actual and seasonal characteristics, and conscientiously implement lightning protection work. .
2. Clarify lightning protection responsibilities and effectively implement lightning protection safety work
Our school is equipped with more than 20 desktop teaching and office computers, a multimedia classroom, a campus broadcasting system and In the school monitoring system, the use of these advanced electronic information equipment in daily work has positive effects, but at the same time, the lightning protection work of these electronic information equipment has also become the top priority of lightning protection work. In response to this situation, our kindergarten has assigned the responsibility for these equipment to each person, and each person is responsible for their own responsibilities. The teacher in charge is required to unplug the power plug of all equipment when leaving get off work and during thunderstorms, so as to minimize and prevent equipment from being damaged by lightning strikes. At the same time, we overhauled the electric wires and telephone lines to ensure that lightning protection work was implemented properly.
3. Strengthen safety education and improve the awareness of resisting lightning damage
During the inspection, our kindergarten extensively carried out publicity on lightning protection laws, regulations and lightning disaster prevention knowledge to improve the awareness of teachers and students in the school. Awareness of lightning protection and disaster reduction, especially in situations where lightning disasters are highly harmful and have a large social impact, and combined with the actual situation of the school, vigorously publicize the common knowledge of lightning protection and emergency avoidance through campus broadcasts, meetings and other means, so as to achieve the goal of promoting lightning protection and disaster reduction. Every household should be aware of the knowledge of lightning protection and disaster reduction, which can effectively reduce the impact of lightning disasters and encourage teachers and students to actively participate in lightning protection work.
IV. Carry out lightning protection inspections to ensure lightning protection safety work is in place
Our park also seriously carried out a lightning protection safety inspection. The key areas to inspect include teaching buildings, special equipment lines, distribution boxes and other power distribution introduction points. A voltage stabilizer is added to the computer room for teaching in our school, and UPS power supplies are installed in offices with computers in many places. Power supply inlets are equipped with power protectors, which play a certain role in preventing lightning strikes. While carrying out major inspections, our park actively carries out lightning protection safety inspections and gradually improves various lightning protection measures to avoid the occurrence of various lightning injury incidents.
5. Existing problems
Although our park has carried out various lightning protection safety work in depth and solidly, we still have some problems in our work.
1. Lightning protection facilities are not in place. Due to the lack of funds on the one hand and the lack of professional technical guidance on the other, for example, the lightning rods installed on the roof of the building were installed by the original builder when the teaching building was being built, and the lightning protection coefficient is limited. More advanced or effective lightning rods should be reinstalled. mine device.
2． Lightning protection work lacks professional technical guidance. Lightning protection work has high technical requirements. With the continuous development of modern electronic technology and the use and networking of a large number of precision electronic equipment, lightning protection is powerless to protect these electronic equipment. In response to this problem, relevant professional departments are needed to provide technical support for the lightning protection work in our park. Summary of Lightning Protection Work 5
First of all, I would like to express my warm welcome to all the leaders who came to our county to inspect and guide the work. Our county has always attached great importance to lightning protection safety work. In accordance with the unified arrangements and deployments of the municipal party committee and the municipal government for work safety, we have strengthened organizational leadership, implemented management responsibilities, carried out various lightning protection safety work in a solid manner, comprehensively promoted the standardized construction of lightning protection, and ensured the safety of the people. lightning protection safety. Below, we will make a brief report on the lightning protection safety work in 20xx.
1. Effectively strengthen the organizational leadership of lightning protection safety work.
In order to implement various lightning protection work in a solid and effective manner, our county has included lightning protection and disaster reduction work within the scope of work safety supervision and management, and has held multiple meetings to analyze the lightning protection safety situation and address existing problems and Insufficient, scientific and reasonable deployment of lightning protection safety management work to ensure that lightning protection safety work is always under the effective management of the county party committee and government. At the same time, the responsibilities of relevant departments such as meteorology, safety supervision, quality supervision, housing construction, and industry and commerce were clarified, and a lightning protection safety management mechanism in which each took its own responsibility and coordinated cooperation was formed, which effectively promoted the smooth development of lightning protection safety management work. Even though the county's finances are very difficult, 30,000 yuan of lightning protection funds have been implemented, and the funds for lightning protection and disaster reduction have been included in the fiscal budget of the same level.
2. Standardize and improve the meteorological administrative approval process.
The review and completion acceptance of lightning protection device drawings have been included in the administrative licensing approval process, and the review and completion acceptance of lightning protection device drawings for real estate projects, county fixed asset investment and other projects have been included in the joint administrative licensing process. The catalog and flow chart of administrative licensing powers are published to the public on the Li County Government Information Network. All administrative licensing matters have been included in the administrative service hall. So far, *** has participated in 10 joint survey projects, participated in 21 joint plan review projects, and accepted 21 lightning protection device design review projects.
3. Carry out special inspections on lightning protection safety.
In late March 20xx, the meteorological, safety supervision, public security and firefighting departments were organized to carry out lightning protection and production safety inspections, and carried out lightning protection in flammable and explosive places, communication and power, and personnel-contained places in the county. Safety inspections of lightning protection facilities were carried out and all written inspection reports were issued. Qualified units were issued a "Lightning Protection Facilities Qualification Certificate" and units with potential safety hazards were issued rectification opinions and required to make rectifications and re-tests within a time limit. From October to November 20xx, the second lightning protection inspection was carried out for hazardous chemical enterprises such as gas stations, and more than 50 flammable, explosive and hazardous chemical enterprises such as liquid ammonia, chemicals, liquefied gas stations, and gas stations were inspected to ensure lightning protection. The detection coverage rate reached 100%, and rectification notices were issued within a time limit to enterprises with lightning protection safety hazards, urging relevant enterprises to make rectifications as required. At the same time, the monthly inspection system for key hazard sources was strictly implemented, and a county-wide lightning protection and safety production management ledger was established and improved. In 20xx, no major lightning disaster accidents occurred in the regulated enterprises in Li County.
4. Increase the publicity of lightning protection science.
Combined use of activities such as "323 Meteorological Day", "512 Disaster Prevention and Reduction Day", "Safety Production Month", "124 Legal Publicity Day", etc., using radio, television, mobile phone text messages, clear paper, banners Through various forms such as slogans, we have carried out extensive publicity on laws and regulations on lightning protection and disaster reduction, lightning protection, disaster handling knowledge, and hidden danger investigation and management. The meteorological department was organized to go deep into rural areas, carry out lightning protection science popularization activities to the countryside, explain lightning protection and risk avoidance knowledge to the public, and distribute more than 1,000 copies of lightning protection and disaster reduction science popularization materials. Through extensive publicity, the society's awareness of lightning prevention and disaster reduction has been improved and the public's ability to prevent lightning and disaster reduction has been enhanced.
5. Strengthen the construction of emergency response capabilities for lightning disasters.
In accordance with the "Hebei Province Lightning Prevention and Disaster Mitigation Management Measures" and combined with the actual situation of our county, the "Thunder and Lightning Disaster Emergency Plan" was revised and improved.
Emergency response drills for lightning disaster emergencies were organized and carried out to improve the level of disaster response. Give full play to the role of township meteorological information service stations and meteorological information personnel, and investigate and collect statistics on thunder disasters in various places through multiple channels. Organize relevant departments to quickly launch lightning disaster emergency plans based on the severity of the disaster to minimize lightning disasters. Although our county's lightning protection safety production work has achieved certain results in 20xx, and the public's lightning protection safety awareness has been greatly improved, there is still a gap with the requirements of superiors. In future work, we will use this assessment as an opportunity to further Increase efforts, improve work measures, and continuously promote lightning protection safety work to a new level. Lightning Protection Work Summary 6
In July, our city experienced continuous heavy rainfall, lightning and strong winds. In order to ensure the safe broadcast of our radio and television stations under the disastrous weather, the entire station worked together to A radio and television safety leadership organization was established with the station director and deputy director as the command, and strict and detailed preventive measures and emergency plans were implemented. The production and broadcast department responded actively and quickly formulated specific safety broadcast response measures based on actual work, strictly Take care of the safety of broadcasting.
1. Strict implementation of emergency plans
In response to severe weather, our station has issued an "Emergency Plan and Emergency Response Procedure for Radio and Television Safety Broadcasting in Severe Rainfalls, Thunderstorms and Winds" ”, the production and broadcasting department immediately organized all personnel to conduct in-depth study, and required all personnel to keep a clear mind at all times, tighten the safety string, and perform all work in strict accordance with the emergency plan and emergency response procedures to ensure the first level of safe broadcasting.
2. Preparation in advance to ensure safety
Nipping various potential safety hazards in the bud is an important task for us to safely broadcast in advance in response to this severe thunder and lightning storm. Before entering the flood season, the production and broadcasting department, under the leadership of the director in charge, assisted the technical department in early June to complete the installation and commissioning of lightning protection equipment for all equipment and circuits of the production network and broadcasting network, and put on all equipment A layer of "safety armor" is planned and implemented in advance, which effectively protects our station's equipment from damage by strong lightning and rainstorms, and lays a solid foundation for our station's safe broadcasting in severe weather.
3. Quick response and quick disposal
During the daily inspection, weekly inspection and daily broadcast control of the equipment, when hidden dangers and problems were discovered, the employees of the production and broadcast department did their best to Don't panic, don't panic, report to the relevant person in charge as soon as possible according to the plan and process, and handle it quickly to ensure the safety of the broadcast.
Yang Jin, an employee of the Production and Broadcasting Department, discovered the UPS power feed during the broadcast control inspection and issued an alarm. He immediately reported it to the person in charge of the department and the director in charge. The director in charge led the production and broadcast department and the technical department. The person in charge immediately rushed to the scene to carefully investigate and repair the fault, and then quickly restored normal power supply, avoiding the possibility of a major failure that would cause the entire station to stop broadcasting due to a UPS power failure.
4. Pay attention to dedication and stick to your position
In July, the production and broadcasting department, especially the broadcasting and control positions, caused a temporary shortage of personnel due to department reorganization. Under this situation, the employees overcame difficulties. , stress unity, consider the overall situation, give up normal rest time and care for family members, and insist on doing two people and two posts. Especially under the continuous bad weather, pregnant comrades in Liujia did not care about the safety of their mothers and children, and first-time mothers were unable to breastfeed their children. They braved the wind and rain, regarded the bureau as their home, and protected the safety of our station with the pure dedication of radio and television people. Broadcast safety. ;