Explosion occurring in industrial settings happens when materials handled or fuel used are mixed abnormally or leak, and they are in an unsafe condition. The unsafe condition which can be developed to explosion has many cases by carelessness in use rather than equipment defects such as obsolescence of equipment, system failures, etc, to prevent accidents by carelessness, despite the efforts of strengthening safety training and relevant regulations and modernizing emergency equipment, the reason

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... large and small explosion occurs continuously is that the cause of accidents which is an act of the operator, that is 'carelessness' is treated as a personal matter. Since accidents caused by carelessness are originated from complex problems which can be generated in facilities, systems, working processes as well as individual work situations, specific safety rules throughout the working process as well as personal duty of care should be provided to prevent accidents by carelessness.