ABSTRACT

Safety in electrical systems concerns three different areas: protection of life, protection of property, and protection of uninterrupted productive output. The required investment to accomplish improved safety often consists merely of additional planning effort without any extra equipment investment. The protection of human life is paramount. Electrical plant property can be replaced and lost production can be made up, but human life can never be recovered nor human suffering compensated for. To achieve improved safety to personnel, special attention should be directed to energized equipment, adequate short-circuit protective devices, a good maintenance program, simplicity of the electrical system design, and proper training of personnel who work around electricity. Many of the items necessary to give improved protection to life will also secure improved protection to plant property and minimize breakdown of electrical system equipment. This chapter deals with electrical safety, switching practices, arc-fl ash hazard analysis, precautions, and accident prevention.