A complete solution of weak current system management and maintenance methods

Abstract: In recent years, China's electrical engineering industry has developed rapidly, which not only meets people's growing demand for electricity, but also makes great contributions to the development of national economy. As an important part of electrical engineering management, the management and maintenance of weak current system is not only related to the application efficiency of standby power supply in buildings, especially intelligent buildings, but also has an important impact on the development of electrical engineering projects and industries. Based on this, this paper expounds and analyzes the concept and composition of weak current system, and puts forward corresponding solutions to the problems existing in the management and maintenance of weak current system.

Keywords: weak current system; Air conditioning system; checkout equipment

Introduction to 0

With the continuous development of electrical automation technology and electrical engineering industry, weak current system, as an independent power system, has been widely used in intelligent buildings, which well meets the demand of building electricity. However, with the continuous expansion of the scale of weak current system and the gradual enhancement of its application, the difficulty of its management and maintenance has also been significantly improved. At present, the maintenance and management efficiency of weak current system in the field of electrical engineering in China is still at a low level, which affects the electrical performance of buildings and is not conducive to the realization of energy saving and emission reduction targets in the electrical engineering industry. Under this background, how to strengthen the research on the existing problems and countermeasures in its maintenance and management on the basis of mastering the composition of weak current system has become the key work to be carried out in the current electrical engineering field.

1 weak current system and its composition

1. 1 Overview of weak current system

According to the intensity of power transmission, power systems can be divided into two types: strong power systems and weak power systems. Among them, the high voltage system is mainly composed of 220V and 50Hz high voltage in buildings and buildings, which is mainly responsible for providing power resources to users and meeting their normal power needs. Weak current systems are widely used in the field of intelligent buildings, which are mainly divided into two categories. One is a low-voltage power system that meets the voltage level stipulated by the state, in which the AC weak current system voltage is 36V and below, and the DC weak current system voltage is 24V and below; The second is an information source with audio, video, images, data and other related information [1].

1.2 composition of weak current system

The weak current system is mainly composed of the following two subsystems: ① Safety protection system, mainly including indoor safety protection system and outdoor safety protection system, in which the indoor safety protection system is mainly composed of security anti-theft system, gas leakage alarm system and fire alarm system. These subsystems cooperate with each other to ensure the safety of buildings and places, and at the same time share the relevant information in buildings with the public. Externally, the corresponding weak current security system is mainly composed of camera monitoring, security patrol sign-in and peripheral infrared alarm system, which is mainly responsible for monitoring the closed-circuit television of the building to ensure the safety around the building. (2) The automatic control system in the weak current system is mainly composed of air conditioning system, water supply and drainage system, lighting system and broadcast fire control system, which is mainly responsible for the automatic control of main equipment systems in the building.

2 problems existing in the maintenance and management of weak current system

2. 1 Insufficient understanding of the maintenance and management of weak current systems.

Lack of understanding of weak current system maintenance management is the primary problem of weak current system maintenance management at present. By analyzing the operators and managers of some electrical engineering enterprises, we can know that they pay more attention to the construction and application of high-voltage systems in buildings than weak-current systems, and improve the overall performance of high-voltage systems by introducing a series of cash maintenance and management technologies. However, they do not fully realize the importance of maintenance and management of weak-current systems for building electricity safety and energy saving, mainly in two aspects: on the one hand, they do not deeply understand the relationship between maintenance and management of weak-current systems and building energy saving, which leads to serious power loss of weak-current systems. On the other hand, the electrical engineering construction unit has not invested enough money in the maintenance and management of the weak current system. Due to the lack of necessary financial support, it is difficult to continuously supply the equipment, technology and talents needed for the maintenance and management of weak current systems. On the basis of increasing the difficulty of maintenance and management of weak current system by electrical engineering construction units, it is also not conducive to ensuring building safety. Accordingly, it is difficult to effectively control the energy consumption of the whole building power system [2].

2.2 unscientific management and maintenance work

The analysis of the current weak current system shows that it is highly integrated, and it still needs to be managed and maintained by traditional equipment management and maintenance methods, while the maintenance and management of each subsystem of the weak current system can be realized by reasonably dividing the systems. However, at this stage, some managers and maintainers of the weak current system still hold the idea that if there is no problem with the weak current system, they don't need to deal with the weak current system, but simply deal with the small problems and carry out large-scale repair and maintenance for the big problems, which leads to the weak current system being dealt with only when there is a problem. Due to the lack of daily maintenance and management, it not only reduces the stability of the system, but also has a serious impact on the life cycle of the whole weak current system [3]. In addition, due to the lack of information platform for the maintenance and management of the weak current system, relevant maintenance managers can't fully draw lessons from historical maintenance data to analyze the existing problems, and at the same time can't evaluate and predict the running state and potential problems of the weak current system, which reduces the reliability and operating efficiency of the system as a whole.

2.3 lack of professional testing equipment

Lack of professional test equipment is another problem in the management and maintenance of weak current system in China. By analyzing the existing weak current system detection equipment in China, it can be seen that its technology and structural performance are still far behind the advanced detection equipment abroad, and some electrical engineering units still use multimeters as the main detection equipment, which makes it difficult to achieve professional management and maintenance of large-scale weak current systems. In addition, at this stage, most electrical engineering construction units mostly rely on traditional manual means to manage and maintain the weak current system, that is, relying on the experience and technology of relevant technicians and managers to manually manage and maintain all kinds of weak current equipment, and then find problems and propose corresponding solutions. On the one hand, this maintenance management mode is inefficient and affects the continuity of system operation; On the other hand, the maintenance and management of weak current system based on manual work is highly dependent on the experience of managers, and it is impossible to detect and deal with specific details, which further increases the security risk of weak current system [4].

2.4 Weak current system management and maintenance of the lack of talent

The lack of professionals is an important factor that restricts the improvement of management and maintenance efficiency of weak current systems. Because our country's weak current control technology started late, but developed very rapidly, the supply of professionals can't meet the actual needs of weak current system management and maintenance. Most managers and maintenance personnel of electrical engineering enterprises have only a preliminary understanding of circuits, wires and other related knowledge, and they are sent to the maintenance and management of weak current systems with corresponding practical engineering experience. Due to the lack of professional and systematic training, it is difficult for them to solve unexpected problems independently with limited personal experience and technology. In addition, because the work of energy conservation and emission reduction has just been carried out in China in recent years, the maintenance and management of weak current system based on energy conservation and emission reduction has not been paid attention to by enterprises and related high efficiency, resulting in a serious shortage of professional management and maintenance talents of weak current system with the idea of energy conservation and emission reduction, which not only reduces the management and maintenance efficiency of weak current system, but also greatly hinders the energy conservation and emission reduction work of power industry.

3 Solutions to the maintenance and management of weak current system

3. 1 pay more attention to the management and maintenance of weak current system.

Strengthening the management and maintenance of weak current system is the premise and foundation to improve the safety and efficiency of weak current system. First of all, the operators and managers of electrical engineering construction units should further realize the important role of weak current system management and maintenance workers in building electricity safety and energy saving. By promoting the maintenance and management of weak current system to the strategic height related to the overall development of enterprises and strengthening the publicity of weak current system management and maintenance, a correct understanding of this work can be formed from top to bottom within enterprises. Secondly, the relationship between the maintenance and management of weak current system and power energy saving and emission reduction is further expounded to the employees of the company. On the one hand, the maintenance and management of weak current system is conducive to improving the utilization efficiency of electrical equipment in each subsystem, thus reducing equipment energy consumption; On the other hand, under the environment of energy saving and emission reduction, the maintenance and management of weak current system will inevitably follow the overall energy saving and emission reduction policy, thus improving the stability and scientificity of its maintenance and management. On the basis of fully understanding the relationship between weak current system maintenance and management and power energy saving and emission reduction, it provides a good environment for the smooth development of this work [5]. Finally, electrical engineering enterprises should further strengthen the capital investment in the maintenance and management of weak current systems, and strengthen the introduction and innovation of related technologies and equipment for maintenance and management, so as to improve the operating efficiency of weak current systems and prolong their life.

3.2 Construction of weak current system information management platform to improve the scientific management and maintenance.

Establishing the information management platform of weak current system is an effective measure to improve the scientific management of weak current system. First of all, the maintenance and management personnel of weak current system should change the traditional concept of system maintenance and management as soon as possible, and bring the daily maintenance of weak current system into their own work scope, so as to know and master the system status in real time and deal with the unexpected situation of the system properly and timely. Secondly, through the analysis of the overall electricity structure of the building, on the basis of meeting the requirements of the weak current system, the information management platform of the weak current system is constructed. On the one hand, the platform is used to store and analyze the historical data of weak current system, which provides corresponding reference opinions for the subsequent treatment of similar faults; On the other hand, with the help of the information management platform of weak current system, various potential faults of weak current system can be evaluated and predicted, so as to nip in the bud, improve the maintenance and management efficiency of weak current system as a whole, and meet the power demand of users.

3.3 Strengthen the introduction and research and development of professional testing equipment.

Strengthening the introduction and research and development of specialized testing equipment is another key work that should be carried out in the current weak current management and maintenance of electrical engineering enterprises. By introducing or developing special test equipment for weak current system, the system can be improved and professionally managed and maintained. On the one hand, electrical engineering enterprises should invest appropriate funds to carry out the introduction and research and development activities of professional testing equipment for weak current systems, so as to provide good equipment guarantee for improving the management and maintenance efficiency of weak current systems; On the other hand, electrical engineering enterprises should also accurately and appropriately select specialized testing equipment that can match the current operating characteristics of the weak current system in combination with the actual operation situation of the weak current system in the building they are responsible for, so as to improve the applicability of the equipment. For example, the management and maintenance of air conditioning system in weak current system can be mainly based on sensor detection. Through the temperature and humidity sensor, the automatic monitoring and control of heat pump, refrigeration unit, fresh air unit and air supply and exhaust unit can be realized, and the intelligent control of on-off state, air supply and refrigeration capacity of air conditioning system can be realized.

3.4 Increase the introduction and training of weak current system management and maintenance personnel.

Increasing the introduction and training of professionals is an important way to improve the management and maintenance efficiency of weak current departments. First of all, electrical engineering enterprises should strengthen the correct understanding of the introduction and training of professionals in weak current system management and maintenance, upgrade the introduction and training of professionals to a strategic height related to the development of enterprises and the effect of regional energy conservation and emission reduction, and provide a good corporate atmosphere for the smooth development of this work by strengthening the publicity of the introduction and training of professionals. Secondly, electrical engineering enterprises should further strengthen the introduction and training of weak current system professionals with awareness of energy saving and emission reduction, establish a talent delivery mechanism in the form of school-enterprise cooperation through cooperation with universities, and hire relevant experts to explain the methods and technologies in weak current system management and maintenance, so as to improve the overall quality of talents. For example, the lightning protection and grounding maintenance of weak current system should be carried out in the following aspects: first, the lightning protection and grounding should be based on special grounding trunk, which is made of copper-core insulated conductor or cable, and the grounding body should be introduced through external weak current system; Second, we should pay attention to the grounding of weak current system, and avoid mixing or short-circuiting the ground wire alternating with strong current and the zero line of power grid; Third, the grounding wire of the monitoring subsystem and related equipment of the weak current system should mainly use copper insulated flexible wire to ensure the safe operation of the system.

4 conclusion

This paper expounds the concept and composition of weak current system, and systematically studies the related methods of weak current system management and maintenance from the aspects of strengthening the attention to weak current system management and maintenance, building an information management platform, increasing the introduction and research and development of testing equipment, and strengthening the introduction and training of professionals. The investigation results show that there are still many problems in the maintenance and management of weak current system of electrical engineering in China, such as insufficient understanding, unscientific management and maintenance, lack of professional testing equipment and lack of management and maintenance talents. In the future, it is necessary to further strengthen the research on the maintenance and management problems and countermeasures of weak current system, and lay a good foundation for the healthy and stable development of electrical engineering industry on the basis of improving the application efficiency of weak current system and reducing its energy consumption.

Take the exam and contribute.

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