Author: jxkj

Surge protection devices can protect equipment from voltage surges, lightning strikes and other sudden voltage fluctuations, thus prolonging equipment life and ensuring normal operation.

This article will introduce how to choose the right surge protection device from the following aspects to help you better protect your equipment.

1. Consider the type and purpose of the equipment

Different types of equipment may require different types of surge protection devices, such as computers, communication equipment, household appliances and so on. Each type of equipment also has a different level of sensitivity to voltage surges, so you need to choose the appropriate protection device.

2. Consider the installation location

Surge protection devices are usually installed in the power line, but some equipment may need to install surge protection devices in the communication line or signal line. Therefore, when choosing a surge protection device, you need to consider the installation location clearly to ensure comprehensive protection.

3. Need to consider the technical parameters of the protective device

The technical parameters of the surge device include the maximum withstand voltage, response time, rated current and so on. The maximum withstand voltage is the maximum surge voltage that the surge protector can withstand, the response time is the time from the detection of the surge voltage to the action of the surge protector, and the rated current is the maximum surge current that the surge protector can withstand. These parameters will directly affect the protection effect, so you need to choose the right parameters according to the actual needs.

4. Consider brand and quality.

Choosing a well-known brand and a surge protection device with a good reputation can ensure the quality and performance of the product. At the same time, make sure that the surge protection device meets the relevant standards and certification requirements, such as CE certification, UL certification and so on.

In short, choosing the right surge protection device requires comprehensive consideration of factors such as equipment type, installation location, technical parameters, brand and quality. Only comprehensive consideration of these factors, in order to select the most suitable surge protection device, to provide comprehensive protection for the equipment.

In our increasingly digital world, electronic devices have become integral to our daily lives. From smart homes to sophisticated workstations, protecting these electronics from sudden power surges is crucial. This is where Surge Protection Devices (SPDs) come into play, acting as the first line of defense against voltage spikes. In this blog post, we’ll explore the key steps on how to size surge protection devices effectively.

1. Assess Your Power Needs:Before diving into the world of surge protection, evaluate the power requirements of your electronic equipment. Consider the total power consumption, voltage ratings, and the specific needs of each device. This assessment will provide a baseline for selecting an SPD that can adequately handle your system’s demands.

2. Know Your Risk Factors:Different regions experience varying levels of electrical disturbances. Understanding the potential risks, such as lightning frequency and power grid stability in your area, helps determine the appropriate level of surge protection. High-risk zones may require more robust SPDs to ensure comprehensive coverage.

3. Consider the Type of Surge Protection:There are various types of surge protection devices designed for specific applications. For instance, Type 1 SPDs are suitable for main distribution panels and utility entrances, while Type 2 SPDs are commonly used at sub-distribution or branch panels. Tailoring the type of SPD to your system’s architecture ensures optimal protection.

4. Calculate Voltage Protection Level (Up):Voltage Protection Level (Up) is a critical parameter in sizing surge protection devices. It represents the maximum voltage that the SPD allows to pass through during a surge. To determine the appropriate Up, consider the equipment’s insulation level, taking into account the transient overvoltage characteristics of your location.

5. Account for Coordination:In a multi-level surge protection strategy, coordination among different SPDs is essential. Ensure that SPDs are properly coordinated to prevent unwanted interactions and to guarantee the seamless flow of protection throughout your electrical system.

6. Regular Maintenance and Monitoring:Once you’ve sized and installed surge protection devices, the job isn’t done. Regular maintenance and monitoring are crucial to ensure the continued effectiveness of your SPDs. Periodic checks and testing will help identify any potential issues and allow for timely replacements or upgrades.

Conclusion:Investing time and effort in appropriately sizing surge protection devices is an integral part of safeguarding your valuable electronic equipment. By following these steps and staying informed about the specific needs of your system, you can create a robust defense against power surges, ultimately prolonging the life and reliability of your electronic devices. Stay protected, stay connected!

Construction of lightning protection project of Wenzhou mobile super base station

No.1 General situation of mobile base station in Wenzhou

Wenzhou 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 station

2.1 installation environment: Yueqing mobile base station in Wenzhou
Total switch: CHINT DZ20J-100/43000 quadrupole 100A plastic case circuit breaker
2.2 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.

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 power

Power 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 energy

With 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 industry

The 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, petrochemical

Petrochemical 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 industry

Construction 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 protector

However, 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 industries

In 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.

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 2028

The 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 development

With 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 direction

With 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 development

Existing 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.

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