Taiwan battery factory fire accident investigation report released

Three weeks after the explosion of Taiwan's first super battery factory, the local government announced the follow-up treatment of the fire. After preliminary investigation, the accident was caused by the thermal runaway of the battery, while the fire department suggested that the detailed cause of the fire was still under investigation.

The company stated that it will give priority to fire cleanup and will not resume work, and promised not to spread waste water and pollutants. Local residents said, "There is still a smell floating out. Previously, Taini Group released a progress report on the fire incident at Sanyuan Energy Technology Small Port Plant, proposing that the cause of the fire was "multiple system anomalies and event superposition", with three levels of anomalies, namely:

The first layer is abnormal: the heat source in the static area causes a chain reaction; Based on the relevant evidence collected so far, it is judged that a high-temperature heat source flows through the static area. The source of the heat source is currently unknown, but also need more information to further study. In addition to triggering the fire alarm 1F sprinkler auxiliary pump activation, this heat source also triggered the simultaneous eruption of a large number of batteries in the standing area in a short period of time.

The second layer is abnormal: the automatic fire control system fails to start in time and effectively; the "immediate response automatic fire control system" set in the factory fails to start in time and effectively. The reason for its failure to start effectively needs further investigation, resulting in the initial fire can not be effectively controlled in time.

The third level of abnormality: power interruption led to the failure of the fire fighting system; After that, the power of Taiwan Power was interrupted, and the backup power was damaged and failed to function, resulting in the continuous operation of the foam combustion suppression system and fire sprinkler system in the plant area.

The failure of these security systems, which were supposed to operate independently, to function as expected, coupled with successive incidents, led to the expansion of the fire. We are conducting the most in-depth investigation into why these systems fail and the correlation between the events. The final interpretation and confirmation can only be carried out after the key chemical equipment host data excavation and recovery are completed. The report disclosed that a total of 15 people were injured in the fire accident, including 12 company employees, 1 contractor personnel, and 3 firefighters.

In this accident, the automatic fire protection system failed to start in time and effectively. At the same time, the backup power was damaged due to the power interruption, resulting in the continuous operation of the fire protection system. In view of such problems, Shengsida carried out a full set of main and standby power tests on the fire alarm control host as early as the scheme design stage. The tests covered high and low temperature, humidity and heat, salt spray, voltage fluctuation, anti-interference, vibration, impact, etc. to ensure that the system can switch seamlessly when the main power supply fails and rely on the backup battery for continuous operation, thus ensuring the stability of the fire fighting system to the greatest extent.

In order to maximize the effectiveness of the fire protection system, we have designed multi-level protection strategies and adjusted them according to specific application scenarios to ensure that the system can respond quickly, effectively suppress the fire and prevent re-ignition when a fire occurs. At the same time, we have strengthened the environmental adaptability and reliability of the equipment to ensure the stable operation of the fire protection system under various extreme conditions, providing a solid guarantee for personnel safety and asset protection.