Electricity is one of the most significant hazards in mining. Whether you work in a coal mine, surface mine or other metal/nonmetal operation, electrical equipment is everywhere. Power cables, substations, drills, pumps, generators, conveyors, battery chargers and mobile equipment all create serious risks if they are not handled correctly.

Unlike some hazards, electricity cannot always be seen, heard or smelled. A damaged cable, faulty ground or exposed wire can seriously injure a miner in seconds. Electrical accidents can cause burns, shocks, arc flashes, explosions, fires or electrocution. Wet conditions, metal tools and confined work areas can increase the risk even more.

One of the most important things that miners can do is stay alert around energized equipment. Never assume a circuit or cable is safe just because it looks normal. Always follow lockout/tagout procedures before servicing or repairing equipment. Lockout/tagout means disconnecting power, locking the energy source and verifying that equipment cannot restart unexpectedly.

Miners should also inspect electrical equipment before each shift. Damaged cords, missing insulation, loose connections, broken plugs or exposed wires must be reported immediately. Never use damaged electrical tools or extension cords.

DAILY ELECTRICAL SAFETY REMINDERS

• Stay at least the required distance away from overhead power lines.
• Never touch exposed wires or damaged trailing cables.
• Keep electrical panels and disconnects closed unless authorized.
• Follow all lockout/tagout procedures exactly.
• Wear proper personal protective equipment (PPE), including gloves, safety glasses and arc-rated clothing when required.
• Keep water away from energized electrical equipment whenever possible.
• Report damaged cables, sparks, smoke or unusual odors immediately.
• Use only approved and properly grounded equipment.
• Never bypass safety devices or remove grounding systems.
• Know the location of emergency disconnects and fire extinguishers.

Battery-powered equipment is also becoming more common in mining. Large battery systems can create additional hazards such as electrical shock, thermal runaway and fire risks. Only trained personnel should work on battery systems or charging stations.

Remember that electrical safety is not only the responsibility of electricians. Every miner plays a role in preventing accidents. Taking a few extra seconds to inspect equipment, follow procedures and stay away from hazards can absolutely save lives.

Before you begin your shift each day, ask yourself:

“Am I working safely around electricity today?”

That simple reminder can help prevent serious injuries and keep everyone on the mine site safe.

CORESafety

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