This standard specifies the basic principles and protection technical requirements for the safety protection of railway signaling electronic equipment against overvoltage and overcurrent induced by lightning electromagnetic pulses. It does not take into account the protection of buildings on the site where the railway signaling equipment is located against direct lightning strikes.
TB/T 3074-2017 history
2017TB/T 3074-2017 Technical specification for protection against lightning electromagnetic impulse on railway signaling equipments
2003TB/T 3074-2003 Technical specification for protection against lightning electromagnetic impulse on railway signaling equipments