CASE STUDY 3 - ELECTRICAL SAFETY
The defective insulation hazards Introduction An electrical hazard is a dangerous condition where a worker can or does make electrical contact with energized equipment or a conductor. From that contact, the person may sustain an injury from shock, and there is a potential for the worker to receive an arc flash (electrical explosion) burn, thermal burn or blast injury. Improper grounding hazards A damaged live power tool that is not grounded or double-insulated is very dangerous! When an electrical system is not grounded properly, a hazard exists. The most common OSHA electrical violation is improper grounding of equipment and circuitry. Grounding is the process used to eliminate unwanted voltage. A ground is a physical electrical connection to the earth. Electrical equipment must be properly grounded. Grounding reduces the risk of being shocked or electrocuted. The ground pin safely returns leakage current to ground. Never remove the ground pin.
