Electrical safety work is very important for enterprises to carry out their work normally. The following is a summary model of electrical safety work. Let's have a look!
Summary of electrical safety work Fan entered the construction site in XX years after accepting the supervision task of the company. This season is the climax of the project team's big task, with many buildings and short time, 100 days of war. As an electrical supervision engineer, under the direct leadership of Director * * and the team leader of the second group, I overcame the difficulty of the lack and replacement of electrical supervision personnel, carried out my work in line with the law-abiding, fair and scientific principles, combined with the actual project, strictly followed the supervision policy of "three controls, two controls and one coordination" of the construction unit, combined supervision with help, enthusiastically served the construction unit, earnestly carried out the professional supervision work of the project, learned the professionalism of the team leader, and strictly demanded myself. So far, this work has lasted for several months and achieved good results. Facing the end of the year, I will summarize my specific work as follows.
I. Overview of Phase III Area C Project in xx Area
Xi 'an xx Community Phase III Area C Project is located in * * Village, * * Township, Xi * * County, Shaanxi Province, covering an area of 505 mu. There are 72 new residential and public facilities in 8 categories, including kindergartens and comprehensive halls, with a construction area of 290,000 square meters. Its supporting facilities such as outdoor water supply, drainage, heating, residential roads, natural gas, strong and weak electricity, fire fighting, etc. This project started on April 1 day of XX, and will be completed and put into use in June of XX.
The project was designed by Xi 'an xx Science and Technology Engineering Co., Ltd. (xx Survey and Design Institute) and Northwest Survey and Design Institute. The six floors above ground (including basement) of this residential building are all large-area excavated lime-soil foundation, reinforced concrete strip foundation, main brick-concrete structure, cast-in-place concrete floor and roof, and the seismic fortification intensity is 7 degrees.
The building numbers of the second group of electrical supervision buildings in Area C are: 14, 15, 16, 17, 19, 20, 2 1 24, 25, 26 and 27. The building area is about 6.5438+0.4 million square meters.
Second, the attitude and understanding of supervision work
Construction engineering is a special product with great value and long service life, which is also related to people's life and property safety, health and environment. Therefore, ensuring the quality and safety of construction projects has become a very important issue. Because our supervisors are professionals with skills, management skills, economy and law, our supervisors will play an important role in ensuring the quality and safety of construction projects through excellent supervision and management of contracted construction units. Therefore, if our supervisors think that the project construction does not meet the engineering design, engineering quality standards and quality requirements, they should report to the team leader and industry supervision in time, and report to Director Li if necessary. And timely issue a rectification notice to the contractor to ensure the project quality, and must strictly abide by the national standards of gb503 19-XX project supervision; From the supervisor's arrival at the construction site to the completion and acceptance of the project, the work should be carried out in accordance with the professional standards of "law-abiding, honesty, fairness and science"; Seriously study GB 50303-XX Code for Acceptance of Construction Quality of Building Electrical Engineering, gb50 168-92, gb50 169-XX national standards and specifications, and more related specifications. At work, I can study the relevant norms seriously, which has played a positive role in carrying out professional supervision work.
Be familiar with the drawings carefully, review the construction drawing design, and make good preparations for supervision. In the past three months, I have been able to control the quality, progress and safety in the construction process, abide by the rules and regulations formulated by the company in the course of work, and obey the direct leadership of Director Li and the normal work arrangement of Team Leader Qiu. In case of drawing contradictions and new problems in engineering construction, carefully consult documents such as historical changes; Communicate and coordinate with the construction unit, and cooperate with each other.
Characteristics of Current Electrical Construction in Phase III and Phase III Area C
1, xx phase iii area c electrical construction supervision disclosure is not perfect. The drawings are incomplete, many details and nodes are omitted, and the monomer and apartment design of two houses cause many contradictions in the drawings, which are inconsistent with the table; For example, the wiring diagram of the distribution box in Building C-70 is XX. Designed in 09 15, the metering box of electric meter is placed in the basement for centralized management, and the installation system diagram of intercom doorbell is XX. The doorbell decoder was designed on September 22, 2009. It is placed by one household, and two households need two wires. The wiring diagram of distribution box in building c-48# is XX. June 5438+10 design, each household meter metering box is managed independently by layers; The installation system diagram of intercom doorbell is XX. The doorbell decoder was designed on September 24, 2009, with one for two households and only one line. The two buildings were designed and jointly built by the same company. The design time of the two buildings is only a few days, but their functions and construction methods are completely different. (The above problems have been changed in Area A) I didn't find the notice of change in Area C, only found some similar drawings with building numbers, carefully checked them, consulted the supplementary notices of all electrical changes in XX years and registered them, communicated with the electrical supervision engineer who had supervised in Area A, recorded the problems in the drawings one by one, and compared the missing problems in Area C in Phase III in each building in time. If it can be changed, I immediately put forward rectification measures to the construction unit. At the same time, the questions raised by the construction party were answered positively. Received a lot of results.
2. The characteristics of the electrical engineering in Area C of 2.xx Phase III are: building a group building and people living in groups. Many buildings are built in a drawing apartment, where people are old colleagues and acquaintances who have worked in the same unit for decades. We all contacted each other through the door when we lived. You and I are compared, so it is very strict to have a unified size and specification in electrical construction.
3, subdivisional work is more, the construction is difficult. The electrical installation project of this building is mainly the installation of strong current, weak current and lightning protection grounding system. Strong electricity is divided into multi-channel air conditioners, multi-channel water heaters, ordinary sockets and lighting. Lighting is divided into public corridor lighting, basement lighting and indoor lighting.
4, many processes, long construction period, and many electrical construction personnel are replaced. Grounding grid, various embedded pipes, embedded parts, grounding leads, foundation embedded parts, etc. From the beginning of the project, it will be constructed together with civil engineering, and then cables and wires will be laid, equipment and appliances will be installed, tested, tested, debugged and set according to the requirements of electrical engineering construction specifications. Finally, all systems will be jointly tested. Quality evaluation and completion acceptance shall be carried out after passing the inspection, and the duration shall be more than 1 year.
5. The skills of electrical installers are poor, which makes the construction supervision difficult. Because electrical installation is an incidental construction in building construction, the construction party often subcontracts it to others, and others subcontract it to a second subcontractor, or even a third subcontract. Therefore, in the construction, the first subcontract is still certified, and most of the other two packages and three packages are unlicensed. The age of the construction workers is uneven, from 17 to over 60 years old, and their cultural level and technical skills are very high.
Four, strictly abide by the standards and norms of supervision work.
In line with the principles of law-abiding, fairness, science and good faith, the principle of "three controls, two controls and one coordination" is implemented for the construction unit. Strengthen the supervision of construction units and do a good job in dynamic control. The supervision building area of Group II in Area C of Weiyuan Phase III is about 6.5438+0.4 million square meters. Adhere to the guiding ideology of quality first, prevention first, process control and terminal control, abide by professional ethics, maintain the image of the supervision company, strictly supervise the construction unit, combine supervision with help, and serve the construction unit enthusiastically. The following points are put forward in quality control.
1, quality control. Do a good job in setting quality control points in construction.
(1) For key parts or weak links, it is generally necessary to analyze the reasons that may cause quality problems in advance, and then formulate pre-control countermeasures according to the reasons.
(2) Key working procedures or links in construction, concealed works, parts or links with changes and new materials, difficult working procedures or links in construction, construction conditions or technical difficulties.
(3) Control of construction personnel. In supervision, we should focus on controlling and supervising unqualified, undocumented, low-level and unresponsive construction workers; The quality of building materials, because it directly affects the quality and safety of the project, should focus on its quality and performance control. (For example, when the temperature is low in winter, pvc pipes are easy to break, and so on. When casting the board surface, electricians are strongly required to stand by and supervise. )
2. Control the technical bottom of the contracting construction unit. This is one of the conditions to ensure the construction quality, therefore, disclosure should be made before each subdivisional work starts.
(1) Strictly control the inspection of materials, finished products, semi-finished products and components to prevent unqualified products from being used in engineering.
(2) Review the technical disclosure information of the construction unit, understand the on-site disclosure situation, avoid disconnection, and master the dynamics of the construction unit. The 20 buildings of Beijing Urban and Rural Project Department are divided into 6 teams. In the process of construction, I noticed the differences in personnel quality, construction methods and construction quality of each team, and took targeted measures to improve the construction quality.
(3) Construction between examples: In order to reduce large-scale mistakes and rework, construction between examples plays an important role in regulating the behavior of construction units and construction quality. In the process of construction, each team adopts the method of starting between examples, and the control effect is good. All construction units and teams are required to make a set of model rooms on each building, and the installation work can only be fully carried out after the acceptance.
(4) In the construction, the method of combining on-site supervision, patrol and parallel inspection shall be adopted to strengthen the quality control of concealed works, important parts, key links and weak links to ensure foolproof. For the abnormal situation, carefully analyze, distinguish responsibilities, deal with it seriously, and communicate with electrical supervision engineer Yang Peijie in time for major problems.
3. Control of materials and components. All raw materials transported to the construction site shall submit the "Application Form for Engineering Materials/Components/Equipment" to the supervisor before entering the site, and the peers shall attach the factory certificate and technical specifications of the products. Before entering the site, the contractor's inspection report shall be checked as required, and our supervision engineer will check and confirm it.
4, schedule control
The construction progress of Anda I Project Department is slower than that of Anda II Project Department, and the construction quality is poor. In this case, through the analysis of personnel, machinery and engineering quantity, we remind the construction unit of Anda not to change people many times, increase advanced machinery (such as pipe bender), learn from the advanced experience of electrical installation of Anda No.2 Project Department, and urge the construction unit to adjust personnel and machinery to lay the foundation for ensuring the total construction period.
5. Acceptance of engineering construction quality. Acceptance of engineering construction quality is an important link in engineering construction quality control. Gb50300-XX "Unified Standard for Acceptance of Construction Quality of Building Engineering" is a general standard for acceptance specifications of various disciplines of building engineering, which must be implemented.
(1) Line pipe laying:
(1), dark with threading steel pipe, interface without butt welding phenomenon. This problem is often encountered in the inspection process. Butt welding of thick-walled steel pipes (with a wall thickness greater than 2mm) will cause internal nodules, which will damage the insulation layer when passing through cables. Thin-walled steel pipe (wall thickness less than or equal to 2mm) will burn through when it is welded, and when it is buried in concrete, it will seep into slurry, which will lead to catheter blockage. These phenomena are not allowed to happen. Therefore, the mandatory provisions of gb50303-XX, 14, 1 and 2 require that butt welding of metal conduits is strictly prohibited, and galvanized and steel conduits with wall thickness less than or equal to 2mm shall not be connected by sleeve welding. Thick-walled steel pipe should be welded with casing, and the weld should be full and dense. Galvanized steel pipe requires threaded connection, and both ends of the joint are fixed with special grounding cards, which cross the grounding wire. Thin-walled steel pipes have threaded connections and tight connections. However, it is required to plug the interface to prevent moisture from infiltrating into the pipe and aging the insulation layer of the wire, and to increase the conductivity of the connection.
(2) The laying depth of steel distribution pipe does not meet the specification requirements. Too deep buried pipes are not conducive to the connection with boxes and boxes, and sometimes too deep slotting will affect the quality of buildings such as walls; Too shallow is not conducive to the connection with boxes and boxes, and it will also cause cracks on the surface of buildings. In some damp places (such as the basement, etc.). ), the corrosion of steel conduit will appear on the wall, so the buried depth is appropriate, which not only protects the conduit but also does not affect the building quality. Therefore, gb50303-XX requires that the thickness of the concealed pipe protective layer should be greater than 15mm, and the groove should be plastered with cement mortar with strength grade not lower than m 10. Slotting requires mechanical slotting, and manual slotting is prohibited. Also, the inside and outside of the steel pipe are not coated with antirust protective paint. In view of these problems, urge the construction party to rectify immediately when inspecting the site.
(3) pvc20 works the most, the distance is not allowed when laying, the corner is too small, the butt joint is not sticky, the groove width is not enough, and the groove is bulging and horizontal. These problems are constrained in on-site inspection almost every day.
(2) Installation of distribution box: a, reserved holes of distribution box. Because the drawings give the electrical installers a coordinated way: "During electrical construction, electricians should cooperate closely and do a good job of reserving holes and embedded parts", and the specific dimensions of reserved holes are not specified in the drawings in detail, so there are no unified and standardized reserved holes in the user metering boxes of most buildings. According to careful statistics, only five floors have been built in the three units of Building 47#. 15 of the reserved holes in the metering box, only 2 holes are still qualified, and the remaining 5 holes are not left. Six reserved holes have no lintels. According to Articles 3, 0 and 7 of gb50203-XX Code for Acceptance of Masonry Construction Quality, lintels should be set when the number of holes left in the wall is more than 300. The two holes are extremely bad (there are photos of 15 holes), and examples like this are more prominent in building c-64#. Other buildings abound. B, the box quality has the following problems: ① The dimensions are not determined according to the drawing requirements. (2) The dimensions of the products delivered to the construction site are inconsistent with the drawings. In view of the above problems: ① It is required to order in strict accordance with the design drawings and relevant specifications. Upon arrival, visual inspection shall be carried out to check whether there is a factory certificate, whether the nameplate is correct, whether the accessories are complete, whether the insulation part is defective or cracked, and whether the coating is complete. (2) The iron box of the distribution box should be consistent with the drawing size. If there is any discrepancy, it is necessary to find out whether the manufacturer produces according to the data requirements. Then find out the disclosure notice.
(3) Installation of various concealed seams: ① The height of socket cassette from the ground is not installed with 50 wires or the 50 wires are misaligned by 3-4 cm, which makes the installation height of various cassettes inaccurate; The installation of several cassettes on the wall is not on the same plane. (2), air conditioning, water heater tank height is not allowed to be too high; (3) The position of the switch cassette is chaotic, and the new requirement is that when it meets the concrete column, it can be 300 away from the edge. Therefore, after drawing, when the column is invisible, the switching distance from the side is regarded as different. Such problems are corrected one by one in the inspection.
Summary of electrical safety work Fan is busy in spring, summer, autumn and winter, and it is the end of the year in a blink of an eye. On the occasion of bidding farewell to the old and welcoming the new, I would like to briefly review my work and study in the past year and sum up my experience and lessons in my work and study. Prepare for self-examination in the future, foster strengths and avoid weaknesses in the future work, and do the work better.
As a production line electrical technician, 20XX has been studying hard, actively analyzing and thinking about problems in the past year, in addition to seriously completing mechanical and electrical related work. At the same time, organize various activities of the department, and personal ability is gradually improved through continuous exercise. Learned a lot of experience and knowledge. However, due to the short working hours, there are many shortcomings in both professional ability and ideology. My knowledge, ability and experience are still lacking, so I need to devote myself to my future work and study, keep learning and accumulate experience.
Now I will make the following statement about my work in the storage and transportation processing department:
I. Maintenance and management of mechanical and electrical equipment
1, track the annual maintenance plan and monthly maintenance plan of the equipment in time; Assist electrician team leader in electrical maintenance and repair. At the same time, observe the running state of the field equipment and track the running state of the repaired equipment. Supervise, inspect and guide equipment operators and maintenance personnel to operate in accordance with the "three major" regulations at the job site, and put an end to habitual violations;
2. Complete the collection, sorting, filing and preservation of relevant electrical technical data. In the first half of the year, the technical parameters of the first phase system were verified and modified according to the actual situation on site, and the technical parameters of the second phase system were photographed and counted, forming the latest technical parameter manual, which is convenient for maintenance and operation personnel to inquire at any time. According to the actual production situation, revise and improve the operating procedures and operating procedures.
3. Participate in the investigation of equipment electrical accidents and faults, analyze the causes, formulate corrective and preventive measures, and keep case records.
4. Organize the electrical technical training in the department, make the training plan, select the trainer and arrange the training time to ensure the smooth completion of the training; I also organized the electrical maintenance personnel of our department to participate in the technical competition of the same type of belt system in mine and open-pit coal industry, which improved the technical ability of the electrical maintenance personnel of our department to a certain extent.
Second, the project construction and outsourcing maintenance work
1. Track the construction of coal conveying system in power plant, carefully study the construction drawings, find design defects in time, and put forward rectification opinions.
2. Track the system settlement and related treatment, and write the explanation of the ground production system settlement and preventive measures of the storage and transportation processing department.
3. Communicate, coordinate and supervise the cleaning outsourcing, dust removal system maintenance and air conditioning maintenance of coal conveying system.
4. Track the maintenance items in the 20XX annual plan and report the maintenance item plan of the storage and transportation processing department in the 20XX annual plan.
Third, Party-mass work and young workers' work.
1. Organize young employees of the department to participate in various cultural and sports activities of the company, such as badminton, table tennis and basketball.
2. Completed all the work related to the party and the masses, collected the rationalization suggestions within the department, classified and summarized the statistics and reported them in time.
3. Organize the Party's mass line education and practice activities in storage and transportation processing enterprises.
4. Organize the election of representatives to the first trade union member congress in 20XX.
5, formulate the health responsibility system of storage and transportation processing department, divide the responsibility area, and check it monthly.
Fourth, self-learning.
Understand and implement the learning concept of open-pit coal industry, and keep in mind the enterprise learning concept that there is no job without learning. Use spare time to learn new knowledge and technology in electrical field and update knowledge in time; He also actively studied the knowledge of enterprise culture and enterprise management in the open-pit coal industry, and strived to become a versatile employee. And in 20 13, he won the fourth place in the open-pit coal industry and was admitted to the young workers' class. At the same time, I can actively participate in various exams and competitions, constantly challenge myself and exercise myself.
Verb (abbreviation of verb) cognition of shortcomings
1, lack of work experience, need to study and practice at work, and use more brains.
2. Sometimes the work is poorly planned and not serious enough, and the work efficiency needs to be improved.
My theoretical level, professional knowledge and work experience are still lacking, so I need to study and practice harder.
Sixth, the direction of efforts in 20XX years
In 20XX years of work and study, I want to improve my professional knowledge and strengthen my sense of responsibility. Continue to strengthen study, broaden knowledge, study professional knowledge and related experience, and consult experienced people such as leaders and colleagues; In line with the principle of seeking truth from facts, actively do your own job without delay.
Summary of Electrical Safety Work In the management of electrical equipment in the first half of xxxx, Fan Wensan mainly focused on ensuring the stable and long-term operation of electrical equipment, carrying out comprehensive management of hidden dangers of electrical equipment, strengthening the monitoring and maintenance of operating equipment, and implementing various management systems. Over the past six months, we have mainly done the following work:
A, electrical equipment hidden trouble management work
In the first step, at the beginning of xxxx, the hidden dangers of electrical equipment in the Division were investigated and understood in detail, and were comprehensively sorted according to their priorities. Finally, the list of electrical hidden dangers is listed.
Step 2, according to the unified requirements of the Equipment and Energy Division, prepare a project proposal for each reported electrical hidden danger project. First of all, the technicians of Taiyi Company, an operation and maintenance unit, understand the previous operation of the equipment, existing problems and faults, and explain in detail the reasons that need to be dealt with in the proposal. Secondly, by collecting information from all parties, we can understand the current technical situation of the equipment and put forward our rectification suggestions and technical solutions.
In the first half of the year, * * * declared the following six project proposals: renewal project of joint high-voltage relay protection device, renewal project of joint high-voltage ups device, renewal project of joint high-voltage shunt capacitor, renewal project of main drop switch cabinet, renovation project of newly built 1, 2 # main transformer and 2 joint 7 # and 8 # power distribution, and anti-sloshing renovation project of variable frequency pump. At present, there is a joint high-voltage relay protection device update project and two joint ups device update projects. One joint high-voltage shunt capacitor update project has been completed and will be implemented after being approved by the Ministry of Motor and Energy. The last three projects need to be won from the company.
In the first half of the year, the work center was the development of the joint relay protection device renewal project. This project involves the power supply system of the Division and is the key equipment of the electrical system. The technical scheme has been carefully prepared. The design of the project is designed by the company's expert center. In the selection of relay protection equipment, it took a lot of twists and turns. Our company's 35kv system and 6kv total drop system adopt the protection device of sel Company in the United States, and its background monitoring and measuring system adopts the system of Shenzhen CLP Company. From the point of view of equipment uniformity, technical continuity and convenience of maintenance and use, it is a better choice to continue to use sel protection devices in the United States and the background system of Shenzhen CLP. However, according to the unified requirements of the group company, the relay protection device must be subject to unified bidding, and the bidding result may not be unified with the general health protection system. After bidding, it was finally won by Beijing Corey Si Tong Company. The equipment of areva company in France is adopted, and the background monitoring system developed by this company is adopted as the background system. In this way, there are two different protection devices and two different background monitoring systems in our relay protection system, which puts forward higher technical requirements for our maintenance and operation. At present, the design work has basically ended. Materials are being declared and preparations are being made before construction.
Secondly, the update of two combined ups devices is completed. From project proposal to special application to equipment selection, equipment contracts have been signed so far. The original ups power supply device has been used for nearly 10 years, and the equipment is seriously aging, which affects the stable operation of the device. After the update, a major hidden danger in equipment operation can be eliminated.
Thirdly, we also carry out investigation and declaration of other electrical hazards and related technical preparations. Such as handcart of main switch cabinet, combined capacitor cabinet and combined transformer. Once there is an opportunity, it can be put into practice quickly.
Second, the maintenance and operation of electrical equipment
In the first half of the year, we strengthened the maintenance of electrical equipment to ensure that the equipment was in good condition. Immediately deal with equipment problems and failures. In this paper, some equipment that has broken down many times is carefully analyzed, and the problems existing in the equipment are thoroughly solved.
In the first half of the year, in view of the oil leakage of 1 # main transformer, we immediately organized relevant construction forces to replace the gaskets of the radiators on both sides. We worked overtime and completed the maintenance and debugging in only two days, which completely eliminated the hidden danger of 1 # main transformer and ensured the safe operation. Aiming at the problem that the fuse and quick-break protection of the total drop capacitor cabinet often act, we solve the faults respectively. For the power capacitor that caused the fuse, this group of capacitors was replaced, and the problem of protection action was carefully analyzed. Finally, it is found out that when calculating the protection setting value, the capacity of capacitor device is calculated by half, which leads to the reduction of protection setting value by half and frequent protection actions. So we recalculated and issued a fixed value notice with the new fixed value. After modifying the protection settings, similar failures did not occur again.
For example, the voltage transformer with total voltage drop is easy to fuse once, and it needs to be pulled out of the voltage transformer cabinet when it is replaced safely, and the relevant protection is disabled, which is of great operational risk. When dealing with this fault, I didn't simply replace the insurance, but analyzed what caused the fuse of the transformer. After consulting the data, it is known that the transformer core is saturated and the fuse is blown due to the resonance of the power grid. On the basis of understanding the cause of the fault, solve the problem in a targeted manner. We installed pt harmonic eliminators in two sections where the total voltage dropped to 35kv. Judging from the use effect, there is no disposable fuse of transformer.
In the first half of the year, there was a lot of electrical equipment maintenance work. As an equipment management technician, I not only require the installation of relevant management regulations to complete all the work. At the same time, it also investigates and analyzes all kinds of equipment failures from a technical point of view, guides maintenance personnel to deal with them, and fundamentally solves the problems.
Third, electrical equipment management
In the first half of the year, we implemented various management systems and regulations through different forms of supervision and inspection. Check the general lowering device and the operation team regularly every week this year; Check the equipment regularly every month and deal with the existing problems and hidden dangers in time. At the same time, through inspection, urge the operation team to do a good job in equipment operation and maintenance.
Conscientiously implement the "three three two five" system. In order to further promote the electronic work of the three maps, we signed a contract with the expert center to confirm that the electronic documents of the three maps will be completed next month. According to the requirements of "three definitions", the compilation of "three definitions" was completed, and the work of "three definitions" for electrical equipment was carried out in the second half of the year.
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