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The text introduces the concepts of power generation and distribution. The material is broken down into short segments that concentrate on specific concepts or applications of particular types of equipment. The detailed explanations are written in easy-to-understand language and concisely presents the needed information. There are many illustrations and photographs that help to provide technical understanding and provide real-world references. This type of explanation and application better prepares the student to perform effectively on the job in installation, troubleshooting, repair, and service of electrical power generation and delivery.
The knowledge obtained in this book permits the student to progress further in the study of electrical systems. It should be understood that the study of electricity and the application of electrical products are continually changing. The electrical industry constantly introduces new and improved devices and material that in turn lead to changes in installation and operation of equipment. Electrical codes also change to reflect industry needs. It is essential that students continue to learn and update their knowledge of current procedures and practices.
The text is easy to read and the units have been grouped by general subject areas. There are summaries in each unit that restate the most important topics of the unit. There are also summaries of unit groupings that provide reviews of topical areas.
Each unit begins with the learning objectives. An Achievement Review at the end of each unit provides an opportunity for readers to check their understanding of the material in small increments before proceeding. The problems in the text sometimes require the use of simple algebra. Students should be familiar with the math before trying to solve the equations. It is also essential that readers have a basic understanding of the fundamentals of electrical circuits and basic electrical concepts.
It is recommended that the most recent edition of the National Electrical Code' (published by the National Fire Protection Association [NFPA]) be available for reference and use as the learner uses this text. Application of state and local codes and regulations should also be consulted when making actual installations.
Features of the seventh edition include:
An instructor's guide for Electricity 3 is available. The guide includes the answers to the achievement reviews and summary reviews and additional test questions. Instructors may use these questions to devise additional tests to evaluate student learning.