Railways and urban rail transit are the lifeline of national transportation, with highly integrated communication, signal, power supply, and industrial control systems that are extremely sensitive to lightning, surges, and electromagnetic interference. According to railway industry standards such as TB/T 2311, Q/CR 652, Q/CR 683, Haipeng Xin has created a comprehensive lightning protection solution covering power supply, signal, data transmission, and antenna communication in all scenarios. It provides CRCC certified high reliability protection for ordinary speed railways, passenger dedicated lines, intercity railways, subways, light rails, etc., ensuring the safety of train command and operation.

The plan adopts graded protection, zone protection, full mode protection, and comprehensive grounding design. At key nodes such as signal machinery rooms, communication rooms, stations, outdoor integrated cabinets, and trackside equipment, a full range of products including power lightning protection boxes, lightning protection distribution cabinets, AC/DC power SPDs, signal SPDs, data channel SPDs, and antenna coaxial SPDs are configured to achieve full chain surge suppression and electromagnetic protection from household distribution to terminal equipment, from mainline transmission to on-site interfaces, comprehensively reducing lightning faults and ensuring stable and reliable train signals.

Core advantages of the plan

Full standard compliance with railway specifications such as TB/T, Q/CR, IEC, etc., with core products certified by CRCC.

Integrated protection covering power supply, signal, data, antenna feeder, and distribution lines in all scenarios, suitable for trackside, machine room, station yard, and on-board locations.

High safety design composite type with no leakage current, overcurrent and overheating tripping, failure indication, and remote dry contact alarm.

High reliability performance with high flow rate, low residual voltage, fast response, and wide temperature operation (-20 ℃~+60 ℃), meeting the requirements of harsh operating environments.
Easy to deploy and maintain module with hot swappable, anti misconnection, and multiple installation methods, making it convenient for online replacement and centralized operation and maintenance.

Integrated delivery provides one-stop services from scheme design, product configuration to engineering implementation, and is stably adapted to the railway operation and maintenance system.

Applicable scenarios

General speed railway, passenger dedicated line, high-speed railway.

Urban rail transit (subway, light rail, tram).

Signal machinery room, communication room, operation room, power supply panel room.

Track circuits, signal machines, switch machines, block systems, and coding systems.

Dispatch and command TDCS/CTC、 Monitoring and wireless communication system.

Schematic diagram of energy graded release of surge protector in power system