MSHA Issues Safety Alert for Battery Fire Explosion Hazard
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On 4/11/2024, a continuous personal dust monitor (CPDM) device was placed on top of a continuous mining machine and was struck by a rock (approximately 24-inch diameter and 10 inches thick) that fell approximately 6 feet.
Immediately after impact, miners reported flames coming from the device, followed by an explosion and larger flames encompassing the unit for a short period of time before extinguishing.
Many devices, such as the CPDM, hand-held radios, cell phones, and cap lamps are powered by lithium batteries. When designed, manufactured, used and maintained properly, lithium and other battery sources for these hand-held devices are a safe power source.
BEST PRACTICES
• Ensure miners appropriately use and protect lithium battery-powered devices from unusual and excessive heat,
stress, impacts, and other hazards
• Conduct workplace examinations and eliminate hazardous conditions
• Control roof, face, and ribs where persons work or travel
• Train miners in the use and proper care of lithium battery-powered equipment including the proper use of PPE
• Follow manufacturer’s instructions for storage, use, charging, and maintenance of lithium batteries
• Keep fire extinguishing equipment readily available
MSHA works to prevent death, illness and injury from mining and promote safe and healthful workplaces for U.S miners. The agency develops and enforces safety and health rules for all U.S. mines regardless of size or number of employees. MSHA also provides technical, educational and other types of assistance to mine operators. MSHA works cooperatively with industry, labor and other federal and state agencies to improve safety and health conditions for all miners in the U.S.
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