Safety Technical Requirements for Mine Vehicle Fire Suppression Systems
1Key Takeaways
This standard establishes the safety technical requirements for fire extinguishing systems used in mining vehicles. It outlines the necessary specifications to ensure the safe operation and performance of these systems under various conditions. The document covers aspects such as design, installation, testing, and main…
2Expert Interpretation
Comprehensive analysis of GB/T 45752-2025 Safety Technical Requirements for Mining Vehicle Fire Extinguishing Systems, covering system classification, hazard protection, installation specifications and maintenance points, suitable for reference by personnel involved in the design, installation and maintenance of mining machinery fire extinguishing systems.
Analysis of the standard technical framework
GB/T 45752-2025 systematically standardizes the safety technical requirements for fire extinguishing systems of non-road vehicles in mines for the first time. The standard adopts the modular design concept of automatic fire alarm unit and fire extinguishing unit to establish a full life cycle safety system covering design, installation, use and maintenance.
Analysis of core safety requirements
| Technical dimension | Automatic release system | Manual release system |
|---|---|---|
| Applicable scenarios | Unmanned vehicles/ultra-high temperature areas | Manned vehicles |
| Starting method | Detector automatic trigger + remote control | Manual operation |
| Protection level | IP67 (alarm unit) | |
| Temperature adaptability | -40℃~60℃ | |
Typical implementation case
Configuration scheme of the fire extinguishing system in the engine compartment of a mining truck:
- A combination of wet type + dry type dual fire extinguishing units is used to deal with the easy re-ignition characteristics of diesel engines
- Three K-type thermocouple detectors are arranged, and the operating temperature is set to 180℃ (exceeding the normal temperature in the cabin)
- The installation spacing of the nozzles is ≤2.5m, and the spraying angle avoids the obstruction of the hydraulic pipeline
Evolution of key technologies
Compared with traditional fire extinguishing systems, this standard highlights three major innovations:
- Intelligent linkage: Require automatic power cut-off before fire extinguishing (Clause 5.1.7)
- Electromagnetic protection: Clarify the line anti-interference requirements (Clause 5.1.17)
- Verification system: Establish a simulated start/release dual test mechanism (Appendix A/B)
Implementation suggestions
Mining enterprises should focus on:
- Establish a fire extinguishing system file and record the data of each simulation test
- Check the sealing of the pressure vessel every quarter (refer to TSG 23-2021)
- Provide standard special training for maintenance personnel, especially the operation of the control panel function in Clause 5.2.1