FM200 hanging fire extinguisher Machine charging pile

Application and Advantages of FM200 Hanging Fire Extinguisher in EV Charging Pile Equipment

With the rapid development of the new energy industry, the number of electric vehicle charging infrastructure — such as EV charging piles — has surged dramatically. Alongside this growth comes an increasing concern over fire safety. Since EV charging piles integrate a large number of electronic components and high-voltage circuits, traditional water-based fire suppression methods pose potential risks. As a result, more and more projects are adopting FM200 hanging fire extinguishers as a core fire protection solution.

This article will introduce the working principles, applicability, and technical advantages of FM200 hanging fire extinguishers, particularly in the context of EV charging stations.

1. Introduction to FM200 Hanging Fire Extinguishers

FM200 (HFC-227ea) is a highly effective and clean gaseous fire suppressant that is widely used for protecting environments with sensitive electronics or valuable assets. It is non-residual, non-conductive, and does not corrode equipment. The hanging fire extinguisher is one form of installation — typically mounted directly above or near the protected equipment. It offers automatic activation and rapid response capabilities without requiring complex piping systems.

The device consists of a fire suppressant storage tank, thermal activation module, pressure gauge, nozzle, and mounting bracket. Its compact design makes it particularly suitable for limited spaces or flexible deployment scenarios.

2. Significance in EV Charging Piles

In recent years, as the number of electric vehicles has increased, so too has the frequency of public and private EV charging pile usage. However, due to long-term operation, wire aging, battery faults, and other causes, fire incidents involving charging piles have become increasingly common, posing serious threats to urban public safety.

While traditional dry powder fire extinguishers are cost-effective, they can cause secondary damage after discharge and are less effective at suppressing sustained burning from lithium battery thermal runaway. In contrast, FM200 hanging fire extinguishers offer several key advantages:

1. Rapid Fire Suppression: Capable of extinguishing initial fires within 10 seconds, effectively preventing flame spread.
2. Environmentally Friendly: FM200 is a clean agent that leaves no residue after release, minimizing damage to internal electronics.
3. High Automation: Can be set to activate automatically via temperature sensing or remotely through integrated control systems, enabling intelligent fire suppression even in unattended conditions.
4. Easy Installation & Maintenance: No need for complex pipe networks, reducing construction costs. It also supports self-checking features, lowering maintenance complexity.
5. Suitable for Enclosed Spaces: Ideal for enclosed or semi-enclosed charging cabinets, ensuring maximum fire suppression efficiency.

3. System Configuration Recommendations and Engineering Practice

In actual engineering applications, designers should choose the appropriate model based on the power rating, internal layout, and environmental conditions of the charging pile.

A typical smart charging station fire protection system includes:

• Installation of 1–2 FM200 hanging fire extinguishers inside each charging cabinet;
• Integration with independent thermal detectors;
• Linkage between extinguishers and fire alarm controllers;
• Optional remote monitoring platform for real-time status tracking and alerts.

Through these configurations, not only is the safety level of the charging pile significantly improved, but operators also gain more efficient management tools.