Vehicle-mounted lifting lightning arrester lightning protection device ensures absolute communicatio

Time：2020-08-28 View：

Compared with similar products, NJXD series vehicle-mounted lightning arrester lightning protection devices have the characteristics of fast lifting speed, high reliability, strong durability, safety and stability, light weight, small closing height, convenient carrying, etc.
There are two kinds of lifting and lifting modes: Moving and electric. The lightning protection device of the vehicle-mounted lightning arrester can be raised to a height of 3-20 meters, the closing height is 1.2-3 meters, and the weight of the main Rod is 15Kg-45Kg. It is widely applicable to emergency lightning protection such as troops, public security, fire protection, construction, field construction, large-scale cultural and sports activities, disaster relief, etc. The use of elevator lightning arrester can also make the installation and maintenance of aviation obstacle lights safe and convenient.
The vehicle-mounted lightning protection device system consists of the vehicle-mounted lightning arrester and the grounding device. The Lightning arrester includes: the insulation jacket which is vertically fixed on the vehicle, the insulation inner sleeve which is fixed in the jacket cavity, A pair of non-induction windings, which are enclosed in the inner sleeve and winding on the insulating rod in reverse helix and parallel, are fixed on the end of the windings, fixed connection to the lower end of the winding of the lead-down line connector;
The grounding device includes: in the driving state, the underlead grounding cable connected with the underlead connector of the lightning arrester, and the top of the cable is connected with the underlead connector, while the bottom is a multi-branch grounding wire;
In the parking state, the underlead grounding cable connected with the underlead connector of the lightning arrester, the top of which is connected with the underlead connector, and the bottom is connected with the metal grounding pile fixed on the ground; The advantages are simple structure, it can effectively inhibit the electromagnetic induction of lightning, avoid being struck by lightning, and improve the protection ability of vehicles and equipment against lightning.

 

Performance Features
1. Connect the Lightning and directly strike the Thunder, and introduce the lightning current to the earth to protect the lightning directly.
2.304 stainless steel is adopted, with strong corrosion resistance.
3. It has extremely strong anti-rotation function.
4. Convenient mobile transportation, convenient detection and maintenance of needle tip equipment.
5. Strong wind resistance, resistant to 60 m/s wind power.
6. Lightning protection radius is calculated according to the rolling ball method.
7. It has the structural characteristics of high anti-corrosion, waterproof and dustproof, and has long service life.
8. The lifting mode can be manual or electric, or manual and electric integrated remote control.
9. Electromechanical integration controls the lifting, limiting, locking and sealing of lightning arrester. Can be controlled by computer or handle button.
10. It can be matched with early discharge lightning arrester or optimized lightning arrester (if matched with early discharge lightning arrester, the lightning protection radius shall be calculated according to relevant national regulations)

Lift Lightning arrester to ensure absolute communication safety! With the rapid development of the security profession, there are more and more opportunities for the lightning protection profession to participate in the lightning protection planning of the security monitoring system. The video surveillance system is increasingly developing in the direction of integration, so the front-end camera is gradually fully equipped with various skills and functional modules. At present, although the front lightning protection device does not show a better lightning protection effect than the external lightning protection planning, the trend of integration will definitely make the lightning protection camera a new star in the future monitoring camera market.

 

Lightning protection skills of optical transceiver
Data optical transceiver, especially as the transmitter of front-end equipment, is generally installed in the outdoor equipment trunk. If the on-site environment is properly harsh, lightning protection becomes abnormal and primary, the quality of Lightning Protection directly determines the probability of data optical transceiver failure.
The damage methods of lightning are mainly divided into three ways: direct lightning strike, induced lightning and ground potential counterattack. The most severe impact on data optical transceiver is the ground potential counterattack.
The so-called ground potential counterattack is when lightning arrester and other lightning arrester will direct lightning strong lightning current through the lead off line and grounding body into the earth, in the lead off line, the appropriate high instantaneous voltage will occur on the grounding body and the metal objects connected with it, and this high voltage will cause infinite potential difference between the metal objects, cables and other electronic devices which are close to them but have no direct touch, the electric shock caused by this potential difference is the counterattack of ground potential.
Ground potential counterattack damages the data optical transceiver through the following ways: when the lightning current is discharged into the Earth, the ground potential of the grounding grid will be raised to tens of thousands or hundreds of thousands of volts within several microseconds.
The lightning current with high damage will flow from the grounding of various equipments to these equipments, and may flow to other adjacent equipments after breaking down the ground insulation, which will eventually lead to the damage or harm of the equipments, some of the damages are mainly: electronic components on PCB board of chassis power supply, chips at video interface and related electronic components, chips at audio and data ports.
Adding lightning protection equipment is very important, and the rest is the planning question of grounding grid. The grounding pile must be put in place to ensure the outstanding grounding of the data optical transceiver. A good low impedance grounding grid planning can ensure that the lightning protection equipment in the system performs an outstanding role and can effectively balance the voltage of all parts of the entire transmission system, to prevent the disturbance of the ground potential difference to the equipment in the line, it can also be useful to prevent the ground potential counterattack from damaging the equipment.