Introduction -- Sparks, arcs and ignition energy -- Area classification -- Hazards of static electricity -- Hazards of lightning -- Hazards of stray currents -- Bonding and grounding -- Hazards of electrical shock -- Explosion and fire hazards of electrical equipment -- Dangers of improper operation of electrical equipment -- Safeguards for electrical equipment -- Power outages -- Some points to remember -- Appendix 1. Diesel driven emergency equipment -- Appendix 2. Short bibliography for regulations and norms -- Appendix 3. Ignition temperatures for common dusts and gases/vapours -- Test yourself.