Electrical hazards at construction sites can result in electric shocks, burns, fires, and fatal injuries. Temporary wiring, damaged cables, overloaded circuits, faulty power tools, and contact with overhead power lines are common risks. To prevent accidents, electrical installations should be handled by qualified personnel, and cables, plugs, sockets, distribution boards, and power tools should be inspected regularly. Suitable grounding, correctly rated circuit protection, and residual current devices (RCDs) should be provided where required. Cables must be routed to avoid water, sharp edges, vehicle movement, and pedestrian walkways.

Before maintenance or repair work, the electrical supply should be isolated, locked out where applicable, and verified as de-energized by an authorized person. Workers should use suitable electrical PPE and insulated tools when required, maintain safe distances from overhead power lines, and immediately report damaged equipment. Only authorized personnel should access electrical panels, and temporary electrical systems must comply with applicable regulations. Proper installation, regular inspections, effective isolation, and worker training help minimize electrical accidents and create a safer construction environment.