The rail transit industry is an important part of the modern urban transportation system. It uses a large number of automated control systems and high-precision, high-speed processing systems. With the improvement of system performance and the continuous demand for energy consumption control, the power consumption and working voltage of the internal devices of the equipment are getting lower and lower. At the same time, the anti-interference ability of the system has dropped significantly, and the security of the system has become more and more fragile. The extensive application of various networks and communication systems that connect the stations and the control center in the system has made the impact of lightning electromagnetic pulses on the safe operation of rail transit increasingly prominent.
Due to the overvoltage caused by lightning current intrusion, power system failure, and relatively complex electromagnetic environment in lines and stations, it will have an adverse effect on the stable operation of the system and affect the life safety of passengers. Rail transit lightning protection is the top priority of all lightning protection application fields.
EYZAO provides comprehensive and efficient rail transit surge protection solutions. Yizao SPD is widely used in rail transit lightning protection systems, providing strong protection for the safe operation of rail transit, including:
Medium voltage AC traction substation, DC traction contact network, low voltage power lighting system, automatic ticket vending and checking system (AFC), line center, station equipment, field equipment, etc.; fire alarm system, environment and equipment monitoring system, video monitoring system, Police and civil communication system, passenger information system, train operation control system, platform screen door control system, etc.
Based on standards
- IEC 62305 “Lightning Protection” series standards
- IEC 61312 “Protection against Lightning Electromagnetic Pulses”
- IEC 61643-11 “Surge Protectors Connected to Low Voltage Distribution Systems”
- GB 50174 “Design Specifications for Computer Rooms of Electronic Information Systems”
- GB 50057 “Lightning Protection Design Specifications for Buildings”
