Textbook in PDF format

The authors of this book have illustrated and explained electrical principles by observing and describing objects and occurrences with which the student is familiar; then examples are given of their practical application and everyday uses. Thus each principle is clearly understood and remembered. Many symbols and diagrams are used on electrical blueprints, and pages of illustrated symbols are presented to aid the reader in learning and remembering these symbols. Beside each symbol is shown a picture of the object it represents; in many cases a cut-away view is used; in others the object is shown pulled apart in order to illustrate its construction. Several pages of standard electrical abbreviations and formulas are given, as well as standard diagrams for the following: single, threeand four-way switches; range circuits; direct-current generators; directcurrent, single-phase, and three-phase motors; controllers. Also included is a chart of the current-carrying capacity of copper wire used for interior electric wiring work; the latest National Electrical Code Standards for different types of insulation and under various wiring conditions are also given. Electrical terms that may cause difficulty are simply and clearly explained in the Dictionary of Electrical Terms included in the book