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Safeguarding devices in machinery are designed to protect workers from hazards created by moving parts, electrical energy, heat, pressure, and mechanical forces. Their primary purpose is to prevent accidental contact with dangerous components, reduce the likelihood of injury, and ensure that machines operate only under safe conditions. In mechanical and electrical safety management, these devices form a critical layer of defense by combining physical barriers, control systems, and sensing technologies to minimize human error and equipment-related risks. The fundamental working mechanism of safeguarding devices is based on isolating the operator from hazardous zones or stopping machine operation when unsafe conditions are detected. One common principle is physical separation, where fixed or movable guards are installed around rotating shafts, gears, belts, and cutting tools. These guards block direct access to dangerous areas and are designed to withstand mechanical stress and impact. Another principle is interlocking, in which ______ _____ _______ _____ _____ _________ ___ ___.
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