Amazon.com description: Product Description: The most comprehensive book on this subject available! A virtual encyclopedia of electrical safety, this latest edition features a new structure. The author rewrote and re-ordered the chapters, either to better reflect today's perspective or to clarify the presentation. Magison expanded his treatment of theory and principles to provide a foundation for addressing some of the questions that arise when no standard or regulation exists. He also added more practical examples of applying principles in real situations. Recognizing the fact that the book's subject matter is truly an international concern, Magison increased the amount of space devoted to work outside North America. Contents: Historical Background and Perspective Combustion and Explosion Fundamentals Classification of Hazardous Locations and Combustible Materials Practice and Principles of Hazard reduction Explosion-proof Enclosures Reduction of Hazard by Pressurization Encapsulation, Sealing and Immersion Increased Safety Type of Protection: 'e' Ignition of Gases and Vapors by Electrical Means Intrinsically Safe and Non-incendive Systems Design of Evaluation of Intrinsically Safe Apparatus Intrinsically Safe Systems and Non-incendive Systems Ignition by Optical Sources Dust Hazards Human Safety Degree of Protection by Enclosures.