Requirements for Emergency Inspection of Distribution Boxes

Emergency inspection of distribution boxes requires immediate hazard assessment, safe shutdown procedures, thorough technical checks, and proper documentation to ensure safety and reliability.Immediate Safety MeasuresBefore inspecting a distribution box in an emergency, ensure the area is safe:Evacuate personnel if a serious hazard is detected and cut off power immediately if danger is present ( ).Post warning signs such as "Personnel Working" to alert others ( ).Wear insulated gloves and shoes, and ensure long hair and loose clothing are secured to prevent contact with live parts ( ).Avoid inspection in rainy or damp conditions to reduce the risk of electrical shock ( ).Technical Inspection StepsDuring an emergency inspection, the following checks are critical:Visual inspection: Ensure the box is intact, free of damage, and dry inside; check for water, abnormal liquids, burning smells, or unusual noises ( ).Electrical checks:Verify the main switch position and indicator lights for each circuit ( ).Measure three-phase voltage balance (within ±5%) using a multimeter ( ).Check connector temperatures with an infrared thermometer (