Solution：

As an expert in comprehensive lightning protection solutions, Promov provides an integrated lightning strike and surge protection solution for rail transit systems.

—— Subway Solution

The subway, as an important part of the urban rail transit system, has gradually become a key mode of transportation for daily commutes. Since the main components of the subway are located underground, there is often a neglect of lightning and surge protection.

In reality, the subway's power supply, communication, and signaling systems all contain a large number of sensitive electrical and electronic devices. These power supply systems and information technology systems are crucial for the safe and normal operation of the subway. The equipment in these systems is numerous and complex in structure, and they are the most important components that ensure the subway operates smoothly.

When lightning strikes, the induced lightning overvoltage can travel along metal cables and invade the relevant systems, potentially damaging equipment that has no lightning protection measures. This could disrupt the normal operation of the subway, and in severe cases, it may result in injuries or fatalities and significant economic losses.

—— Lightning Proximity Early Warning

Overcoming the limitations of meteorological systems that can only forecast lightning over large areas and long time periods, early warning for localized lightning strikes—which are fast-developing, sudden, and highly destructive—can be issued before the event occurs. This, along with automated or semi-automated systems for active prevention, can minimize the damage caused by lightning.

—— Lightning Protection Online Monitoring

By accurately detecting the microampere-level leakage current and lightning strike surge current intensity of surge protection devices (SPDs), the monitoring data is transmitted to the management center's monitoring platform. This enables real-time monitoring of the SPD degradation process, lifespan, and failure alarms. It makes the lightning protection system observable, measurable, controllable, and visible, improving the safety of lightning protection and reducing operation and maintenance costs.

Application Case：

Xiamen Metro Line 1

Shanghai Metro Line 17

Nanjing Metro Ninggao Line

Hefei Metro Line 2

Hangzhou Metro Line 2

Guangxi Metro Line 2

Nanchang Metro Line 2