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Surge Protector, also called SPD (Surge Protective Device), is a device used to protect the electric power system, which can effectively protect the electronic equipment from the damage of sudden voltage shock. In this article,we will introduce the working principle, application scope, classification and selection of surge protectors.The working principle of the surge protector is based on the physical principle of voltage mutation and voltage surge. In the power system, when the voltage changes suddenly, it will produce transient over-voltage and over-current, which will cause damage to electronic equipment. The role of surge protectors is to protect electronic equipment from damage by limiting and shunting these overvoltages and overcurrents. Surge protectors are used in a wide range of applications, including residential, commercial and industrial. In the residential sector, surge protectors are typically used to protect household appliances and computer equipment such as televisions, computers, and air conditioners. In the commercial and industrial sectors, surge protectors are typically used to protect high-end equipment such as manufacturing equipment, communications equipment and data centers.Surge Protector, Lightning Protector Manufacturer Surge protectors can be categorized according to different application scenarios and working environments. Common categorization methods include voltage level, installation location, working principle and so on. According to the voltage level to categorize, surge protectors are mainly divided into low-voltage surge protectors and high-voltage surge protectors. According to the installation location to be categorized, the surge protector is mainly divided into outdoor type and indoor type two. According to the working principle of classification, the surge protector is mainly divided into voltage limiting type, current limiting type and hybrid type. Recommended here to use in line with the national standard, CQC safety certification of the Kay surge protector series of products, product description: the product adopts an independent modular design, good sealing, suitable for 35mm DIN-rail mounting. Each group of lines of lightning protection module using temperature-controlled disconnection technology, with overcurrent protection. The lightning protection module is automatically disconnected when it deteriorates, which can completely avoid the fire risk. The lightning protection module is equipped with a remote alarm interface, which is convenient for remote monitoring. This power surge protector is a modular power surge protector (referred to as: SPD), installed in the low-voltage power distribution system at the front end of the distribution equipment, can prevent lightning and other factors such as induction overvoltage, overcurrent phenomena and other instantaneous surge voltage on the system or equipment caused by permanent damage or instantaneous interruption of the hazard. Product design standards: This product is designed in accordance with the relevant IEC standards, product performance in line with GB 18802.1-2011 "Low-voltage surge protector (SPD) Part 1: Low-voltage power distribution system surge protector Performance requirements and test methods" national standards. Product structure: The product adopts independent modular design, good sealing, suitable for 35mm rail mounting. The lightning protection module of each group of lines adopts temperature-controlled disconnection technology with overcurrent protection function. The lightning protection module is automatically disconnected when it deteriorates, which can completely avoid the fire risk. The lightning protection module is equipped with a remote alarm interface, which is convenient for remote monitoring. Product features: the product has a low residual voltage, fast response speed, large through-current capacity (maximum discharge current Imax 25kA / line), long product life, simple maintenance, easy to install and so on. Scope of application: Generally installed in the building low-voltage main distribution cabinet/box, it can protect all kinds of power supply inlet terminals installed in the distribution system at the border of LPZ1 and LPZ2 in the building, and the power supply equipment withstanding impact voltage category is II.For example. 1) Low-voltage general-purpose electrical cabinets and/or distribution panels in buildings. 2) Outdoor cabinets/distribution boxes. 3) Applicable power systems: TT, TN, IT. Product Maintenance: When the module window indication is transparent, it is normal, when it is red, it is damaged and the lightning protection function is invalid, please remove the damaged module in time and install a new one, and check whether the screws are loose or not. (Note: the installation must be disconnected from the power supply, prohibit electrified operation; grounding wire as thick and short as possible and grounding resistance should be less than 10Ω.) When selecting a surge protector, you need to take into account the different application environments and requirements. First of all, you need to determine the type of equipment to be protected and the type of circuit, and then select the appropriate surge protector according to its voltage level, installation location and working principle and other factors. At the same time, it is necessary to take into account the surge protector's rated current, response time, capacity and other parameters to ensure that the surge protector can meet the actual demand. In conclusion, the surge protector SPD (lightning protector) is a very important power system protection equipment, which can effectively protect electronic equipment from damage caused by sudden voltage shocks. In different application scenarios, we need to analyze the use of matching model specifications according to the use of specific scenarios
Surge Protector (SPD): a device used to limit transient overvoltage and to separate surge current. Surge protectors are mainly used in low-voltage distribution systems and information systems for protection against lightning overvoltage, operational overvoltage, lightning electromagnetic pulse and electromagnetic interference pulse. If the high-voltage side to guard against overvoltage above, the use of lightning arrester Global Market Surge Protectors Market Size: 2017 VS 2021 VS 2028The global Surge Protectors (SPD) market size reached USD 2247.12 million in 2021 and is expected to reach USD 2533.21 million by 2028, at a Compound Annual Growth Rate (CAGR) of 1.54%.At the regional level, the Chinese market has changed rapidly in the past few years, with a market size of $662.65 million in 2021, accounting for approximately 29.49% of the global market, and is expected to reach $785.29 million in 2028, when the global share will reach 31%. Since the mid-1980s, China's surge protector industry began to gradually establish, to the early 1990s, with the establishment of national meteorological lightning protection and disaster reduction related regulations, especially the guidance and implementation of a number of industry regulations, the development of the domestic surge protector market stepped into the fast lane, the past 20 years the industry went through an explosive growth. Currently, the domestic surge protector technology and process development is rapidly changing, and presents a hundred competing trends. Such as core devices using new technology, new formulations to improve SPD performance; adding new temperature protection technology, overcurrent protection technology makes SPD reliability greatly improved; the use of new materials, industrial design enhancement, the application of 3D printing, making the SPD performance is more reliable, the appearance is more beautiful; SPD real-time monitoring of the state of easy to manage and so on. China's lightning protection industry is in a stage of rapid development, the industry's enterprise scale is generally small, the market concentration is not high, the competition pattern is relatively decentralized. As different industries have different application environments and operational requirements, their lightning protection application industry standards are different, the certification standards are different, the threshold of cross-industry application of lightning protection products is higher, resulting in a more decentralized situation in the lightning protection industry. Scattered pattern in the overall industry to achieve a strong competitive advantage in the enterprise, in addition to PHOENIX CONTACT, DEHN, OBO and other international brands, mainly for the Sichuan Zhongguang, Lei An, Hai Pengxin, Ke Anda, Lei Xun, calibration and other sales revenue of the top of the domestic enterprises. With the rapid development of the electronic information industry in the future, lightning protection awareness continues to improve, lightning protection products continue to expand the application industry, lightning protection industry concentration is getting higher and higher, in the market competition with the international leading enterprises, with independent intellectual property rights, the industry chain is complete enterprises will gradually occupy a favorable position. From the industry's technological development prospects, the development trend of surge protectors have: (1) from the crude to the refinement of the direction of developmentWith the development of electronic technology, the internal structure of the new equipment is becoming more and more centralized, more and more refined components, making the equipment to withstand overvoltage, overcurrent ability to decline, more susceptible to lightning damage. Future lightning protection products should be lower residual voltage, protection should be more refined. (2) from a single protection to the integrated protection development directionWith the application of system integration technology, the design of various types of electronic equipment is increasingly miniaturized, the integration of surge protectors put forward new requirements, the need for SPD has a variety of functions, such as incidental filtering function of the surge protector. (3) from passive lightning protection to active lightning protection developmentExisting lightning protection project design, mostly relying on the experience of the designers. With the lightning monitoring products are vigorously promoted and widely used, designers can be based on the local lightning frequency, amplitude and direction of the monitoring results, change passive into active, design the optimal lightning protection project.
Nowadays, it can be said that as long as there is electricity in the place need to install surge protectors, Raytek lightning protection has been applied to a number of industries, including the electric power industry, communications industry, petrochemical industry, construction industry and other fields. Surge protector, lightning protection application effectively protects the power of these industries, communications and other lines of security, to ensure the normal operation of the equipment. First, the traditional powerPower industry is an important foundation industry of the national economy, to provide power and protection for the development of other industries, is the focus of the economic development strategy and the first industry, its demand for lightning protection products are mainly for transmission towers with grounding products and lightning rods, substations with grounding products and power supply lightning protection, power distribution equipment power surge protector, transmission lines and transmission and distribution substations of lightning failure monitoring device system. According to the demand data over the years, the demand for surge protectors is rising year by year tendency pad.Second, new energyWith global warming and energy shortages are becoming increasingly severe, new energy in the energy strategy of countries continue to improve the status of the new energy industry demand for lightning protection products mainly from two aspects: one is the fan, photovoltaic array convergence tanks and inverters and other ancillary power supply surge protectors, lightning protectors, sensors, signal lightning protectors; two is the grounding products used in the power plant.The development of new energy to the lightning protection business has brought new market space. New energy power generation equipment, high precision, lightning caused by the potential loss of huge, new energy investment in lightning protection of high professional requirements, attaches great importance to product performance. Third, the communications industryThe communications industry is responsible for hundreds of millions of information transmission and communication tasks per second, is today's information society is one of the very important basic industries. The stability and reliability of communication services rely on communication facilities such as communication base stations and switching equipment throughout China, and once these facilities are damaged, it will cause communication interruption, resulting in incalculable losses. Therefore, whether it is a new construction or the original communication facilities need to be accompanied by the construction of lightning protection system. Signal surge protector: communications industry demand for lightning protection products is mainly equipment power supply system power surge protector, signal receiving antenna antenna surge protector, transmission equipment signal surge protector (RJ45 signal surge protector) and mobile base station tower on top of the lightning rod and the bottom of the lightning protection and grounding products. Four, petrochemicalPetrochemical industry, including oil and gas extraction, processing, storage and transportation, refining and so on. As the petrochemical industry has a high risk and high explosive characteristics, in the grounding protection, direct lightning protection, DCS system surge protection and other requirements are very high. Petrochemical industry demand for lightning products are mainly oil pipelines, gas pipelines and refining equipment with grounding products: high refining production equipment with lightning rod: refining equipment with power surge, protector: and equipment signal port with signal surge protector, lightning protection; petrochemical transportation vehicle lightning protection device.Fifth, the construction industryConstruction industry is the early application of lightning protection field, but also very major lightning protection industry downstream market. Construction industry demand for lightning protection products is mainly power distribution room (box) with surge protectors, lightning protection, roof with lightning rods, grounding products, as well as building monitoring equipment, cable TV with signal lightning protectorHowever, with the development of electronic information technology in the future, in the Internet of Things, three networks convergence and other network integration trends and intelligent buildings, driven by the demand for lightning protection products will become increasingly large. Six, other industriesIn addition to the previously mentioned communications, electric power, petrochemical and construction and other major application industries, lightning protection products downstream also includes rail transportation, aerospace and defense, information technology, civil aviation and other fields, these areas of the market volume is relatively small, but is a very important application of the market, and the future market growth prospects.With the increasing degree of electronic military equipment, military communications, command and control, satellite navigation and other aspects have a clear demand for lightning protection. In addition to the military investment to increase, the military's electronic equipment localization trend is also becoming more and more obvious, as equipment supporting the domestic lightning protection enterprises will therefore have more market share in the industry.
2023-09-08Construction of lightning protection project of Wenzhou mobile super base stationNo.1 General situation of mobile base station in WenzhouWenzhou mobile base station construction area has 1691 seats (including: Wenzhou City 487 (Lucheng District 178, Ouhai District 168, Longwan District 118, development zone, 23), Yueqing City 215, Ruian City 184, Pingyang County 122, Yongjia County 305, Cangnan county seat, 162 seat Wencheng County 129, Taishun County 45, Dongtou County 42).The base station consists of a machine room, a feeder, an antenna, and an antenna mounting bracket. The main equipments of the computer room include base station controller, transceiver, power amplifier, coupler, combiner, duplexer and feeder, and other auxiliary devices, such as signal transceiver, power cabinet and standby power supply. The base station antenna is erected on the scaffold. The antenna is connected to the antenna and the equipment of the machine room.This is the 15 "super base station" of Wenzhou mobile in charge of mine renovation, which is distributed in various counties and cities in Wenzhou. "Super station" is the use of advanced high power, wide coverage, low power station equipment, cable / satellite transmission through automatic switching to improve transmission security, increase power allocation extend power time, improve the anti disaster ability, and strive to achieve the earthquake does not fall, not a flood, typhoon, ice cold does not collapse not bad".No.2 Construction of lightning protection for mobile base station2.1 installation environment: Yueqing mobile base station in WenzhouTotal switch: CHINT DZ20J-100/43000 quadrupole 100A plastic case circuit breaker2.2 project: Zhejiang Leitai Electrical Company Limited production of TNR-120TB anti parallel to switch thunder box output.Connection mode: using Kevin wiring.Lightning protection box installation way: wall hanging type.
2023-10-23
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