We provide complete lightning protection system for highway, bridge, toll station, substation and other traffic facilities across thunderstorm area.

Lightning protection system based on the new version of iec62305-3, iec62305-4:210 design, and take into account the gb50057-2010 and other international and transportation industry lightning protection standards. The external lightning protection system adopts the "zero welding" connection technology, and the selected lightning protection system connection parts and materials have passed the IEC62561/EN50164 test.

Flash system,

The lightning connection system at the concrete level of traffic command center, toll station and staff dormitory is mainly based on the grid. The grid size is determined according to the lightning protection registration of the protected building (iec62305-2 risk assessment or GB50057 requirements for the classification of lightning protection building). In order not to damage the structure and waterproof performance of the concrete layer, the flashover grid is supported by movable, non-slip, climate change resistant, UV stable and halogen free support

The base is strengthened, and the flash-strip side on the daughter's wall is fixed by the supporting parts with preinstalled bolts.

Down lead

The external lead wire is connected to the grounding system at the shortest distance along the wall, and is directly fixed on the wall by the supporting parts with preinstalled bolts. In consideration of the risk of human contact with overvoltage, CUI wire is used for lead-off in the area of about 3 meters on the ground. The upper end of CUI wire is connected to the common lead-off wire through testing the breaker card, and the lower end is connected to the ground system with the general grounding fixture. When the lead wire is buried in concrete by dark deposition, a fixed grounding terminal and a test break card (box) shall be set in a specific area.

Grounding system

Toll station, transformer substation, such as traffic command center building adopts closed loop structure of common grounding system, including the choice of substation grounding advocate material and connection of should be considered to ground fault short circuit current and lightning impulse current stability and mechanical properties of the product, the influence of the ground along the (across) the sea bridge and highway system considering the salt fog corrosion has serious risks, grounding material with the thickening of anticorrosion coating hot-dip zinc steel or copper plating materials, when the soil resistivity is higher and the installation location is limited, can increase the separation of self-locking vertical grounding rods way to expand the grounding area, or with rare earth resistance reduction agent.

Equipotential connection system

All conductors, electrical and electronic systems that pass through the interface of the lightning protection zone shall have equipotential connections outside the interface. It is advisable to use a local equipotential connection belt for equipotential connection, and other local metal objects such as various shielding structures or equipment shells are also connected to the local equipotential connection belt.

Power supply and signal line lightning protection system

Highway lighting system, tunnel ventilation system, toll station monitoring and weighing system, automatic communication system, etc. according to the lightning partition installation of appropriate surge protector. The system parameters in the installation environment should be considered when selecting the surge protector. For example, the basic factors such as the transmission frequency, interface and signal type of the signal loop should be taken into account for the surge protector used in the automation system, such as the grid system type, voltage grade and power frequency relay of the operating power supply system.