Surge manufacturer

Zhejiang leiho Electric Co., Ltd. - specializing in the production and sales of surge protective devices

[zhejiangleihaoelectric]

Power Socket For Lightning Protection are suitable for lightning protection (overvoltage) protection of low-voltage AC power supply (220V) system electronic and electrical equipment, such as computers, communication equipment, fax machines, high-end audio, video equipment, precision instruments, meters, etc. Our drag line lightning protection product integrates a surge protector (lightning protection device) into the drag line power socket, which is convenient for home, office and other electrical appliances. The plug-in lightning protection product integrates a surge protector (lightning protection device) into the drag line power socket, which is convenient for home and office use. The drag line lightning protection product integrates a surge protector (lightning protection device) into the drag line power socket, which is convenient for the use of multiple electrical appliances such as home and office. The lightning protection product for 19-inch cabinets is a surge protector (lightning protector) integrated into the cabinet power socket to facilitate cabinet installation. It is the first choice for lightning protection for equipment room cabinets. The plug-in lightning protection product integrates the surge protector (lightning protection device) inside the power plug, which is convenient for home, office and other electrical appliances. For more information about this product, please visit:https://www.zjleihao.com/electrical-separate-control-power-supply-smart-socket-for-lightning-protection-product/ For more product information, please visit: https://www.zjleihao.com/ Zhejiang Leihao Electric Co., Ltd. welcomes you at any time and sincerely requests you to become one of our partners.

[zhejiangleihaoelectric]

Features of two-in-one lightning arrester: 1. the network camera two-in-one lightning arrester has large current capacity: 10KA(8/20μS), high-speed response (10-12ns) and low loss; 2. The design concept of two-in-one power supply and network lightning protection does not take up space and is suitable for surge protection of various high-definition network cameras; 3. It can effectively prevent equipment damage caused by instantaneous increase of potential difference between camera power supply and network equipment; 4. Two-stage series linkage protection is adopted internally, with low residual pressure and long service life; 5. The power surge protection port has LED failure indication (green: normal; Extinguish: invalid); 6. The network camera two-in-one lightning protector adopts integrated structure, small size, simple wiring and convenient installation. For more information about this product, please visit:https://www.zjleihao.com

[zhejiangleihaoelectric]

[zhejiangleihaoelectric]

Made in China - Zhejiang Leihao Electric Co., Ltd.: We have the most advanced production tools, equipment and testing instruments. Our products are widely used in many industrial fields. Our company's service department is in line with the purpose of integrity, and strives for survival with quality。 This product is the signal surge protector RJ45 and produced by Zhejiang Leihao Electric Co., Ltd. We adopt professional technology and quality system management, and in the principle of "customer first, reputation first, mutual benefit and common development", welcome friends from all over the world to exchange and cooperate.LH-RJ45 series surge protector device are specially used for various computer networksuch as ethernet network (LAN), toke-ring network ,and its satisfied different types lightning – proof areas,the connector of its input and output is RJ45 maie/female connector,which is easily connected and installed and installed ,and it is main used in server equipment, working station (intranet) and router, HUB,and board band RJ45 interface protection for protection equipment, which will damaged by the over voltage of the earth or the line inductance. For more information about this product, please visit:https://www.zjleihao.com/rj45-series-surge-productor-device-product/ For more product information, please visit: https://www.zjleihao.com/ Zhejiang Leihao Electric Co., Ltd. welcomes you at any time and sincerely requests you to become one of our partners.

[zhejiangleihaoelectric]

The maximum discharge current Imax (8/20 μ s) The gap type module has high lightning discharge capacity and is applicable to the first level lightning protection of power system. This product is widely used in mobile communication base stations, microwave communication bureaus/stations, telecommunications equipment rooms, industrial plants and mines, civil aviation, finance, securities and other power systems, such as various power distribution stations, power distribution rooms, power distribution cabinets, AC and DC power distribution panels, switch boxes, and other important equipment vulnerable to lightning strikes. When the thunderstorm season is coming, lightning protection is particularly important at this time. Lightning enters the room through power lines or other ways, causing damage to people and equipment; LEIHAO Lightning Protection Company has many excellent lightning protection products, of which the surge protector of power supply is an important part. Now we will briefly introduce the parameters and uses of a first-class surge protector.

(1) in the front end of the main power switch in the floor distribution box, LH-50I 4P is generally used as the primary protection of power supply;

② LH-50I 4P should also be used at the low voltage end of transformer and the front end of main power switch. ③ When the distribution box is independent outdoors, LH-50I 4P should also be used as the primary power protection.Equipment connected to AC power supply network is easily affected by many electrical problems that may be expected in unstable operation, which leads to equipment failure, life reduction and even damage. LH-15I series surge protectors are designed to meet the protection requirements of all low-voltage devices for industrial lightning surge. The product range of this series is classified by product type and power supply category (AC or DC). For more information about this product, please visit:https://www.zjleihao.com/36-sidall-structure-voltage-switching-type-ac-lightning-surge-protector-820-product/ For more product information, please visit: https://www.zjleihao.com/ Zhejiang Leihao Electric Co., Ltd. welcomes you at any time and sincerely requests you to become one of our partners.

[zhejiangleihaoelectric]

The maximum discharge current Imax (8/20 μ s) The gap type module has high lightning discharge capacity and is applicable to the first level lightning protection of power system. This product is widely used in mobile communication base stations, microwave communication bureaus/stations, telecommunications equipment rooms, industrial plants and mines, civil aviation, finance, securities and other power systems, such as various power distribution stations, power distribution rooms, power distribution cabinets, AC and DC power distribution panels, switch boxes, and other important equipment vulnerable to lightning strikes. When the thunderstorm season is coming, lightning protection is particularly important at this time. Lightning enters the room through power lines or other ways, causing damage to people and equipment; LEIHAO Lightning Protection Company has many excellent lightning protection products, of which the surge protector of power supply is an important part. Now we will briefly introduce the parameters and uses of a first-class surge protector.

(1) in the front end of the main power switch in the floor distribution box, LH-50I 4P is generally used as the primary protection of power supply;

② LH-50I 4P should also be used at the low voltage end of transformer and the front end of main power switch. ③ When the distribution box is independent outdoors, LH-50I 4P should also be used as the primary power protection.Equipment connected to AC power supply network is easily affected by many electrical problems that may be expected in unstable operation, which leads to equipment failure, life reduction and even damage. LH-15I series surge protectors are designed to meet the protection requirements of all low-voltage devices for industrial lightning surge. The product range of this series is classified by product type and power supply category (AC or DC). For more information about this product, please visit:https://www.zjleihao.com/36-sidall-structure-voltage-switching-type-ac-lightning-surge-protector-820-product/ For more product information, please visit: https://www.zjleihao.com/ Zhejiang Leihao Electric Co., Ltd. welcomes you at any time and sincerely requests you to become one of our partners.

[zhejiangleihaoelectric]

[zhejiangleihaoelectric]

The lightning protection block with the maximum discharge current of 80KA is suitable for the lightning protection of the main power supply in important places. This product is widely used in power systems such as mobile communication base stations, microwave communication bureaus/stations, telecommunications equipment rooms, industrial factories and mines, civil aviation, finance, securities, etc., such as various power distribution stations, power distribution rooms, power distribution cabinets, AC and DC power distribution Screens, switch boxes, and other important equipment that is vulnerable to lightning strikes. Surge protective device (SPD) is an indispensable device in electronic equipment lightning protection. his The working principle is that under normal conditions, SPD is in a very high resistance state to ensure the normal operation of the power supply system. When the power supply system gradually increases with the surge current and voltage, the resistance of SPD continues to decrease, the SPD starts immediately within nanoseconds, and the surge energy is discharged to the ground through SPD; After the surge occurs, the surge protector quickly recovers to the high impedance state, so it will not affect the normal power supply of the system. 35mm standard DIN rail installation, 2.5~35mm connecting copper strand ²。 In front of the LHSPD, each pole must be equipped with protection - fuse or miniature circuit breaker lightning current LHSPD protection is used, and short circuit protection is carried out after LHSPD breakdown. The LHSPD is installed on the front protected line (device) and connected to the power cord. The first type of product is installed in the building incoming line to accommodate the general distribution box with large surge current. Class B C products are mostly installed on the floor distribution box. Class D products are close to front-end equipment, with less surge current and residual voltage For more information about this product, please visit:https://www.zjleihao.c

[zhejiangleihaoelectric]

[zhejiangleihaoelectric]

[zhejiangleihaoelectric]

Lightning surge test and lightning surge protection device

 

Lightning surge test is to evaluate the performance of power supply port, signal and control port of electronic and electrical equipment when subjected to surge (impact) interference. Its purpose is to evaluate the performance of the product when the equipment is subjected to high energy surge (impact) disturbance from power lines and interconnection lines.

 

There are two types of lightning surge tests: common mode and differential mode. Therefore, the use of surge absorbing devices should take into account the corresponding conditions with the test. In order to ensure the use effect, the surge absorbing device shall be used at the inlet of the incoming line. Due to the large di/dt in the surge absorption process, no signal line and power line can pass near the device to prevent electromagnetic coupling from introducing interference into the signal and power lines.

 

In addition, the pin of the surge absorbing device should be short; The absorption capacity of the absorption device shall match the test level of the surge voltage and current.

 

The biggest feature of lightning surge test is that the energy is particularly large. Therefore, the scheme of using ordinary filter and ferrite core to filter and absorb is basically invalid; Gas discharge tubes, varistors, silicon transient voltage absorbing diodes, semiconductor discharge tubes and other special surge protection devices must be used. A common characteristic of surge suppression devices is that the impedance is different with and without surge voltage. Under normal voltage, its impedance is very high, which has no effect on the operation of the circuit; When a very high surge voltage is applied to it, its impedance becomes very low, bypassing the surge energy. This kind of device is used in parallel between the line and the reference ground. When the surge voltage occurs, it will conduct quickly to limit the voltage amplitude to a certain value. Varistors, transient suppression diodes and gas discharge tubes have different volt ampere characteristics, so the changes when surges pass through them are not recognized.

The surge protection expert Zhejiang leihao Electric Co., Ltd. Laboratory provides free sites and equipment for customers to conduct lightning surges. Professional FAE engineers are nearby to provide technical guidance and help with the selection of surge protection devices. To learn more about lightning surge protection schemes and devices, please go directly to the Leihao electronic website to consult online customer service.

[zhejiangleihaoelectric]

Combination switch Combination switch -- in the electrical control circuit, a switch often used as the power supply, which can be used to directly start or stop the small power motor or make the motor forward and reverse. It is also commonly used to control local lighting circuits. The combination switch has single pole, double pole, three pole and four pole, and the rated continuous current is 10, 25, 60, 100A, etc. Structural form: the switch is left mounted, single handle, clamped and split, threaded connection and fixed under the steering wheel. Functions: wiper switch (high speed, low speed, intermittent, off), steering switch (left and right steering lane change), dimmer switch (high beam, low beam, overtaking), washing button switch, horn button switch. Please provide the full English name of SCB (combination switch)! Best regards wangwei sales manager Tel: + 86 18357736706 Whatapp:13780102031 Enterprise product company Floor 5, building 2, xianlongchen Industrial Zone, Hongqiao Town, Yueqing City, Zhejiang Province, China (Zhejiang leihao Electric Co., Ltd.) E-mail: [email protected]

[zhejiangleihaoelectric]

Function of backup protection device Folding advantages The backup protection devices of traditional surge protective devices are mostly circuit breakers and fuses. As backup protection devices, circuit breakers are prone to misoperation under the impact of surge. The surge withstand capacity is low. In order to obtain higher surge withstand capacity, the selected rated current will be relatively large, which will result in the inability to break the short circuit current to ground. The withstand capacity of fuse with the same rated current is lower than that of circuit breaker, and there is also the problem of larger selected rated current. SCB (special backup protection device for surge protector), as a new generation of backup protection device for surge protector, has strong breaking capacity and higher surge withstand capacity, and its short-circuit action current is far lower than the traditional backup protection device under the condition of considering both breaking capacity and surge endurance. It can effectively break the low short-circuit current and provide more sophisticated short-circuit protection for the surge protector.

[zhejiangleihaoelectric]

[zhejiangleihaoelectric]

A new British study shows that some familiar natural scenes, such as thunder and lightning, may increase in the future due to global warming. Lightning is a discharge scene accompanied by lightning and thunder. Lightning usually occurs in cumulonimbus clouds with vigorous convection, and is often accompanied by fierce gusts and rainstorms. There are often ice crystals in the upper part of the cloud. The changes of ice crystals and water droplets, as well as air convection and other processes, cause electric charges in the cloud. The research team led by scholars from the University of Leeds in the UK announced in the UK's Nature Climate Change magazine that they had calculated the impact of continued global warming on the atmospheric environmental elements that constitute thunder and lightning. The consequence shows that if the global temperature rises by about 5 ℃ by 2100, the number of uniform thunder and lightning will increase by 15%. Declan Finney, the secondary author of the report and a scholar at Leeds University, said that the composition and movement of ice crystals in the cloud would be greatly affected by the downward trend of the temperature rise, which would eventually lead to an increase in the number of thunder and lightning. However, some superstitions hold the same idea. A study announced by American researchers in 2014 said that global warming could lead to more thunderstorms and extreme weather, believing that lightning would increase by 12% for every 1 ℃ rise in global temperature

[zhejiangleihaoelectric]

Lightning protection safety technology 1) The protective zero line must be insulated conductor. PE wire connecting power distribution device and electric machinery shall be insulated multi strand copper wire with section not less than 2.5mlIf. PE wire of hand-held electric tools shall be insulated multi strand copper wire with a section of no less than 1.5m. 2) It is strictly forbidden to install switches or fuses on PE lines, to pass working current and to break wires. 3) The color marking of phase line, N line and PE line must comply with the following regulations: the insulation color of phase line Ll (A), L2 (B) and L3 (C) is yellow, green and red in turn; The insulation color of N wire is light blue; The insulation color of PE wire is green/yellow. In any case, the above color markings shall not be mixed or substituted for each other. 4) When the construction site and external power lines share the same power supply system, the grounding and neutral connection protection of electrical equipment shall be consistent with the original system. Some equipment shall not be connected to neutral for protection and the other shall be grounded for protection. 5) When TN system is used as protective zero connection, the working zero line (N line) must pass through the general leakage protector, and the protective zero line (PE line) must be led out from the repeated grounding of the power incoming zero line or the zero line at the power supply side of the general leakage protector to form a local TN-S zero connection protection system (Figure 2). 6) In the TN neutral protection system, no electrical connection shall be made between the working zero line and the protective zero line through the general leakage protector. 7) In TN neutral protection system, PE neutral line shall be laid separately. The repeated grounding wire must be connected with PE wire, and it is strictly prohibited to connect with N wire. 8) When the primary side is powered by a neutral protection system with a voltage above 50V, and the secondary side is a safety isolation transformer with a voltage of 50V or below, the secondary side shall not be grounded, and the secondary line shall be protected by an insulating tube or rubber sheathed flexible wire. When an ordinary isolation transformer is used, one end of its secondary side shall be grounded, and the normally uncharged exposed conductive part of the transformer shall be connected with the primary circuit protection neutral line. The above transformers shall also be protected against direct contact with live bodies.

[zhejiangleihaoelectric]

Measurement and Control Devices Measurement and control devices are used in a wide variety of applications, such as production plants, building management, heating systems, alarm devices, etc. Overvoltage due to lightning or other reasons will not only cause harm to the control system, but also to expensive converters and sensors. Failure of control systems often results in product loss and impact on production. Measurement and control units are often more sensitive to surge overvoltages than power systems.

hint:

You should stay indoors and keep doors and windows closed; those who work outdoors should hide in buildings.

It is not advisable to use TVs, stereos and other electrical appliances without lightning protection measures or insufficient lightning protection measures, and it is not suitable to use faucets.

Do not touch antennas, water pipes, barbed wire, metal doors and windows, exterior walls of buildings, and keep away from live equipment such as wires or other similar metal devices.

Reduce the use of telephones and mobile phones.

Do not swim or engage in other water sports. It is not suitable to play outdoor ball games. Leave the water and other open spaces to find a place to hide.

Do not stand on the top of the mountain, on the roof or other objects with high conductivity.

Do not handle flammable items contained in open containers.

When it is impossible to hide in buildings with lightning protection in the wilderness, keep away from trees and masts.

It is not advisable to use an umbrella in an open field, and it is not advisable to carry badminton, golf clubs, etc. on your shoulders.

It is not advisable to drive a motorcycle or ride a bicycle.

In the gap of about one minute between two lightning strikes, you should hide as much as possible in a place where you can protect it. If the above conditions are not met, you should immediately squat with both knees, bend forward, and tuck your knees with both hands.

In the wild, you can also rely on taller trees for lightning protection, but remember to keep at least two meters away from tree trunks and leaves. By analogy, it is not advisable to stay under isolated chimneys, next to tall metal objects, or under telephone poles. Also, it is not safe to stand under the eaves, it is better to enter the building immediately.

If you hold metal umbrellas, golf clubs, axes, etc. in your hands during a thunderstorm, you must throw them away or make them lower than the human body. There are also some so-called insulators, like hoes, that are not actually insulating during thunderstorms.

During thunderstorms, avoid standing under the lamp line when turning on the lights indoors.

It is not advisable to use a shower. Because the water pipe is connected to the lightning protection ground, the lightning current can be conducted through the water flow and cause casualties.

Best regards

wangwei

sales manager

Tel: + 86 18357736706

Whatapp:13780102031

Enterprise product company

Floor 5, building 2, xianlongchen Industrial Zone, Hongqiao Town, Yueqing City, Zhejiang Province, China (Zhejiang leihao Electric Co., Ltd.)

mail: [email protected]