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Luzhou Baoting 30m lightning rod model credit guarantee

发布时间: 2019-12-29 17:36:25 发布人: 经理 字体大小: 【大】 【中】 【小】 Article source: hpbileizhen Release time: 2019-12-29 17:36:25 Posted by: Manager Font size: [Big] [Medium] [Small]

Luzhou Baoting's 30-meter lightning rod model reputation guarantees that 35kV and below high-voltage power distribution device structures and roofs should not be installed with lightning rods. The lightning rod installed on the structure should be connected to the grounding grid. The 30-meter lightning rod of Luzhou Baoting shall be equipped with a centralized grounding device. When the thunderstorms in Baoting of Luzhou are complete, it is not necessary to work, and you should minimize your stay outdoors or in the wild; wear plastic raincoats that are not submerged, such as plastic, outdoors or in the wild. If conditions permit, you can enter buildings, cars or ships with large metal structures or lightning protection facilities; if you rely on the streets of buildings or tall trees to avoid, you must be at least 8m away from walls or trunks. The types of power supply interference with variable costs are shown in the table. The types of interference are typical due to 1 falling lightning strike, heavy load connection, low grid voltage, 2 power failure, severe weather, transformer failure, and other reasons. 3 Frequency offset generator instability , Regional grid failure 4 electrical noise radar, radio signals. Power and industrial equipment flying Fox, converters and inverters 5 surges suddenly lighten the load, the transformer taps inappropriately 6 harmonic distortion rectification, switching loads. Switching power supply, speed regulation drive 7 transient lightning strikes, switching of power line load equipment, switching of power factor compensation capacitors, disconnection of no-load motors, discount silver lightning arrester lightning rods, lightning cables, lightning nets and lightning strips can be used as The air-termination device, the metal roof of a building can be used as an air-termination device for various types of buildings other than industrial buildings. These air-termination devices are prominently higher than the protected objects. Luzhou Baoting's 30-meter lightning rod specification models lead the lightning to itself, and then lead the line and grounding device to discharge the lightning current into the earth to protect it. Protected from lightning strikes. Affordable price For us, try not to go out during thunderstorms, do n’t stand near big trees or power poles, do n’t stand on high grounds, do n’t use the machine, it will attract lightning. Every summer, many machines will be hit by lightning. Be careful. Luzhou Baoting 30m lightning rod model credit guarantee transformer door frame should not be installed with lightning rod. Grounding devices requiring lightning protection Grounding devices are an important part of lightning protection devices. The grounding device releases the lightning current to the ground, and the voltage of the lightning protection device to the ground is not too high. system

Luzhou Baoting 30m lightning rod model credit guarantee


Luzhou Baoting 30m lightning rod model credit guarantee 1 is used for input and output isolation. The photocoupler is used in the case of input and output isolation, the line is very simple, because the formation of a ground loop is avoided, and the input and output ground points can also be arbitrarily selected. This isolation can be used not only in digital circuits, but also in linear (analog) circuits. When a charged cloud moves near the ground or a building, anisotropic charges are generated on the ground or the surface of the building due to electrostatic induction. As the charge between the cloud layer and the building increases or the distance decreases, the electric field strength between the charged cloud and the ground or the building will break through the air insulation strength, and an instant discharge will begin. Lightning (cloud to ground) occurred. Attention to lightning rods and lightning strips The lightning rods are not far enough away from the antennas of the various equipment being protected. Some electronic equipment such as radar, satellites, and communication equipment's transmitting and receiving antennas are installed on the top of the building, which is higher than the lightning protection zone of the building. A lightning rod with a set height is required. However, people often ignore the distance between the lightning rod and the antenna of the protected device. In fact, even if it is not a real lightning rod, it needs to have a certain distance from the antennas of various devices to be protected, such as more than 3 meters. This is because the lightning rod is a lightning receptor, which can intercept lightning currents of thousands of amperes to hundreds of thousands of amperes. A strong lightning current can generate strong electromagnetic pulses around it. It has a great impact on the device antennas that are too close. Therefore, the receiving device is damaged. The lightning rod should be welded with the lightning protection strip in two directions. When the antenna support of the device is used, the metal antenna base should be welded with the rebar in the beam on the roof that bears the weight of the antenna. The purpose of grounding. That is to say, although the lightning rod and the antenna base may be connected to the same grounding device, you should also try to avoid connecting the lightning rod directly to the antenna base on the roof. In two cases, the impact of the lightning current intercepted by the lightning rod on the device antenna is very different, and multiple shunts may have been achieved in the middle. The needle body is bent and the verticality of the installation exceeds the allowable deviation. The needle should be re-straightened and installed after meeting the requirements. Luzhou Baoting grounding resistance value. Lightning protection ground resistance generally refers to the impact ground resistance. The value of the ground resistance depends on the type of lightning protection and the type of building. The impact grounding resistance of the lightning rod should generally not be greater than 100; the impact grounding resistance of each lead of the attached air-termination device should generally not be greater than 10Ω; but for less important buildings of the first type, it can be relaxed to 30Ω. The power frequency ground resistance of the lightning protection device should not be greater than 10Ω. Depending on the category and lightning protection level, the grounding resistance of the lightning intrusion wave should not be greater than 5 to 30 ohms, and the grounding resistance of the valve type arrester should not be greater than 5 to 10 ohms. Quality inspection report Therefore, the main role of the lightning arrester is to parallel the discharge gap or the role of non-linear resistors to clip the intruding flow wave and reduce the overvoltage value of the protected equipment, thereby protecting the communication lines and equipment. Lightning damage to power supply of weak electric equipment is mainly line intrusion. The high-voltage part has a special high-voltage lightning protection device. The power transmission line reduces the voltage to ground to less than 6000V (IEEEEC6 4 and wire-to-line cannot. Therefore, overvoltage protection should be performed on 380V low-voltage lines. According to the specifications, there should be some parts: At the two ends of the inner core of the cable between the transformer rear end and the main distribution board of the sub-low voltage equipment, lightning arresters or protectors should be added to the ground for level protection. Lightning arrester protectors should be installed at the two ends of the ground for level protection; lightning arresters or protectors should be installed at the front end of all important and precise equipment and UPS for the level of protection. The purpose is to use the shunting (limiting) technology. The high-absorption energy shunt device (lightning arrester) shunts the lightning overvoltage (pulse) energy into the ground to achieve protection. Therefore, the 30m lightning rod manufacturer in Baozhou, Luzhou uses the quality of the protector in the shunt (limiting) technology. The performance is the key to network protection, so it is important to choose a qualified lightning arrester or protector. Water can be divided into two types of lightning protection measures for weak electrical equipment according to the scope of protection, external protection and internal protection. External protection refers to the safety protection of the building body where the weak electrical equipment is installed. Lightning rods, shunts, nets, balanced potential, Measures such as grounding are more important, more common, and relatively complete. Internal protection refers to the protection of weak electrical equipment in a building against overvoltages (lightning or overvoltages in the power system). The measures are: Measures such as equipotential bonding, protection isolation, reasonable wiring, and setting of over-voltage protectors are relatively new methods, and they are not perfect. According to the characteristics of lightning protection of weak electrical equipment, the measures against lightning surges and ground The protection of potential difference is discussed. Luzhou Baoting 30m lightning rod model credit guarantee Lightning rod's lightning protection function is that it can lead lightning from above the protective object to itself and safely discharge itself into the ground, so its lightning performance and leakage Flow performance is critical. The lightning performance of lightning rods has been experimentally and theoretically analyzed as follows: The lightning guidance airspace is shown in 1. Among them, the simplified envelope is a parabola, which is the average dividing line of 50% of the lightning strikes of the lightning rod under positive and negative thunder clouds. The small and medium circles are the experimental discharge statistics at each point in the air. The data indicates the position of the needle tip of the downward pilot of the simulation experiment. The black circle indicates 100% strike, the white circle indicates 100% strike, and the black and white halves indicate 50% strike and ground. The technological innovation valve arrester is mainly composed of porcelain sleeves, spark gaps and Non-linear resistance. Porcelain sleeve is insulated, supporting and sealing. Spark gap is formed by multiple gaps in series. Each spark gap is composed of two brass electrodes and a mica washer. The thickness of the mica washer is 0.5 ~ 1mm. Because the distance between the electrodes is small, the electric field is relatively uniform, the gap volt-second characteristic is flat, and the protection performance is good. Non-linear resistance is also called resistance valve disc. Resistance valve disc is a pie-shaped element with a diameter of 55-100mm , Sintered from silicon carbide (SiC) particles. The resistance value of a non-linear resistor is not a constant, but changes with the change of current: the resistance value is small when the current is large, and the resistance value is small when the current is small. . Free answers

Luzhou Baoting 30m lightning rod model credit guarantee


Luzhou Baoting 30m lightning rod model credit guarantee EGM theory believes that the lightning strike distance of the object that the lightning leader first enters will discharge the object. The lightning stroke distance is a function of the lightning current [2]: hr = 10I0.65 Made of plated round steel or steel. Lightning protection nets and belts are made of plated round steel or flat steel. Variable cost building lightning protection devices are composed of connecting conductors such as lightning rods, down conductor grounding devices, and lightning arresters. They are indispensable in the process of lightning protection. Failure of any part will cause the lightning protection device to fail to achieve the effect of lightning protection and may play a certain role. Therefore, it is necessary to regularly conduct safety inspections of lightning protection devices, make fair, scientific, and accurate evaluations of lightning protection devices to ensure that their quality and safety performance meet standards. Requires timely detection and correction of problems to avoid unnecessary losses due to quality issues. Surveillance camera lightning protection [1] is a designated measure to avoid damage to buildings and structures caused by lightning strikes. Lightning is a natural discharge phenomenon. Lightning strikes not only cause damage to equipment and house facilities, but also cause fires and even harm humans and animals. Lightning rods, lightning rods, lightning protection nets, lightning strips and arresters are commonly used lightning protection devices. A complete set of avoidance devices includes a flash, down-conductor and grounding device. The above-mentioned needles, wires, nets and belts are only flashers, and the arresters are special arresters. The causes, types, hazards, lightning protection measures, devices, misunderstandings and personal lightning protection measures of lightning are introduced in detail. Lightning protection is not unfamiliar to everyone. Basically, there is a lightning rod on the roof of every house. But how does a lightning rod protect it? The book says that the tip discharges, how can it neutralize the cloud charge? There is also a saying that the lightning rod was led down into the earth. Aren't these two statements contradictory? c Lightning rod on the top of the water tower is made of galvanized steel pipe with a diameter of 25mm or 40mm. , Its thickness should be 4mm. Lightning rods should be made of round steel or welded steel, and their diameter should not be less than the following values: needle length is less than 1m: round steel is 12mm, steel pipe is 20mm needle length is 1-2m: round steel is 16mm, steel pipe is 25mm Needle: round steel is 20 mm, steel pipe is 40 mm. Welding place is not full. Welding flux is not clean. Should be repaired in time, knock off the skin, brush with anti-rust paint. High quality and low price are virtually foolproof without lightning protection equipment. There is no lightning strike in the protection range, but the lightning strike energy is small. From an economic point of view, it is also a waste to achieve perfection. Therefore, the "Lightning Protection Design Code for Buildings" and other design codes and standards have "reduce" lightning strikes as a requirement. Therefore, the lightning protection device designed according to international standards does not have lightning protection safety. In addition to direct lightning strikes, high-rise buildings may also be affected by side strike and induction lightning. The protection range of the lightning rod tower must also be calculated in accordance with the rolling ball method.