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Residential Construction Academy Electrical Principles (03 - Old Edition)by Stephen L. Herman
Synopses & ReviewsPlease note that used books may not include additional media (study guides, CDs, DVDs, solutions manuals, etc.) as described in the publisher comments.
Part of the Residential Construction Academy series, Electrical Principles bridges the gap between theory books that include topics that electricians do not need to know (e.g., resonance and devices) and books for electricians that try to cover all the theory in one chapter. Instead, through the use of a lively writing style and frequent examples, Stephen Herman expands on the important topics that residential electricians need, so that students have time to fully grasp the concepts they'll need on the job. This text focuses on the theory that a residential wireman needs and it includes important safety and OSHA information. Create a direct link between your education/training program and the residential construction industry! Training materials are now available for many of the residential crafts based on skill standards developed by the nation's leading builders and educators. The result of a strategic partnership between the National Association of Home Builder's Home Builders Institute and Delmar Learning, the Residential Construction Academy Series is the perfect way to teach essential workplace skills to people new to the building trades. Ideal for use in vocational programs, workforce development programs, professional associations, and trade unions, all materials are based on industry standards. The Residential Construction Academy also offers credentialing for programs using the skill standards and materials, along with a national registry of students who have successfully completed participating programs. The goal is a workforce that is skilled, knowledgeable, and able to meet the needs of the industry today and well into the future.
Through the use of a lively writing style and frequent examples, RESIDENTIAL CONSTRUCTION ACADEMY: ELECTRICAL PRINCIPLES, 2E covers the important topics that readers need to know to become residential electricians. The author, Stephen L. Herman, logically presents the basic electrical principles from safety to motors and discusses how to go from theory to application. This text helps users learn the work skills, functions and activities included in the Residential Electrician Skill Standards developed by industry leaders for the National Association of Home Builders (NAHB). With its supplemental multimedia this text provides an integrated teaching solution directly linking your education/training program to the residential construction industry.
Based on national standards set by the residential construction industry, the new Residential Construction Academy Series is the result of a partnership between Home Builders Institute and Delmar Learning. This series is the perfect way to guide learners to development of essential workplace skills. Electrical Principles focuses on the important topics that residential electricians need, presented logically so that learners can fully grasp the concepts they will need on the job. This book covers each of the work functions, key activities, and specialties addressed in the NAHB's Residential Electrician Skill Standards. Through the use of a lively writing style and frequent examples, Stephen Herman provides a blend of practical and theoretical material that is easy to follow. This book focuses on the theory needed by a residential wireman, including Ohm's Law, circuits, instruments, direct and alternative current theory, transformers, motors, important safety information, and more.
About the Author
Stephen L. Herman has been both an electrician and a teacher for more than 30 years and has authored numerous textbooks on the subjects of electricity and mathematics. For 20 years, Mr. Herman served as lead instructor for the Electrical Technology Curriculum at Lee College in Baytown, Texas, where he received an Excellence in Education Award from the Halliburton Education Foundation. He also taught at Randolph Community College in Asheboro, North Carolina, for nine years, and helped establish an electrical curriculum for Northeast Texas Community College in Mount Pleasant, Texas.
Table of Contents
Section One Basic Electricity 1 Chapter 1 Safety 3 General Safety Rules 5 Effects of Electric Current on the Body 5 Protective Clothing 8 Ladders and Scaffolds 9 Fires 11 Ground Fault Circuit Interrupters 12 Grounding 13 Summary 14 Review Questions 14 Chapter 2 Basic Electrical Theory 19 Early History of Electricity 21 Atoms 21 The Law of Charges 23 Centrifugal Force 24 Electron Orbits 24 Valence Electrons 25 Electron Flow 26 Insulators 26 Methods of Producing Electricity 26 Summary 27 Review Questions 27 Chapter 3 Electrical Quantities and Ohms Law 28 The Coulomb 30 The Amp 30 The Electron Theory 30 The Conventional Current Theory 30 Speed of Current 31 Basic Electrical Circuits 32 The Volt 33 The Ohm 33 The Watt 34 Other Measures of Power 35 Ohms Law 36 Metric Units 39 Summary 39 Review Questions 40 Chapter 4 Resistors 41 Uses of Resistors 43 Fixed Resistors 43 Color Code 45 Standard Resistance Values of Fixed Resistors 48 Power Ratings 49 Variable Resistors 50 Schematic Symbols 51 Summary 52 Chapter 5 Series Circuits 54 Series Circuits 56 Voltage Drops in a Series Circuit 56 Resistance in a Series Circuit 57 Calculating Series Circuit Values 57 Solving Circuits 58 Voltage Dividers 64 The General Voltage Divider Formula 65 Voltage Polarity 65 Using Ground as a Reference 66 Summary 67 Review Questions 67 Chapter 6 Parallel Circuits 69 Parallel Circuit Values 71 Parallel Resistance Formulas 72 Summary 79 Review Questions 80 Chapter 7 Combination Circuits 82 Combination Circuits 84 Solving Combination Circuits 84 Simplifying the Circuit 84 Summary 96 Review Questions 96 Chapter 8 Measuring Instruments 99 Analog Meters 101 The Voltmeter 101 Multirange Voltmeters 102 Reading a Meter 103 The Ammeter 105 Ammeter Shunts 105 AC Ammeters 106 Clamp-on Ammeters 108 DC-AC Clamp-on Ammeters 108 The Ohmmeter 110 Digital Meters 111 The Low-Impedance Voltage Tester 113 Summary 114 Review Questions 115 Chapter 9 Using Wire Tables and Determining Conductor Sizes 116 Using the National Electric Code Charts 118 Factors That Determine Ampacity 118 Correction Factors 122 Computing Conductor Sizes and Resistance 123 Computing Voltage Drop 128 Parallel Conductors 128 Testing Wire Installations 129 Summary 130 Review Questions 131 Section Two Alternating Current 145 Chapter 10 Magnetic Induction 132 Magnetic Induction 134 Flemings Left-Hand Generator Rule 135 Moving Magnetic Fields 135 Determining the Amount of Induced Voltage 135 Lenzs Law 136 Rise Time of Current in an Inductor 136 The Exponential Curve 137 Inductance 138 R-L Time Constants 139 Induced Voltage Spikes 140 Summary 142 Review Questions 143 Chapter 11 Alternating Current 147 Advantages of Alternating Current 149 AC Wave Forms 149 Sine Wave Values 151 Resistive Loads 155 Power in an AC Circuit 155 Skin Effects in AC Circuits 155 Summary 156 Review Questions 157 Chapter 12 Inductance in Alternating Current Schedules 159 Inductance 161 Inductive Reactance 162 Schematic Symbols 164 Inductors Connected in Series 164 Inductors Connected in Parallel 165 Voltage and Current Relationships in an Inductive Current 166 Power in an Inductive Circuit 166 Reactive Power 167 Q of an Inductor 167 Summary 168 Review Questions 169 Chapter 13 Resistance-Inductive Series Circuits 170 RL Series Circuits 172 Impedance 172 Vectors 172 Total Current 176 Voltage Drop across the Resistor 176 Watts 176 Computing Inductance 177 Voltage Drop across the Inductor 177 Total Voltage 177 Computing the Reactive Power 178 Computing the Apparent Power 178 Power Factor 178 Angle Theta 179 Summary 184 Review Questions 184 Chapter 14 Resistive-Inductive Parallel Circuits 186 Resistive-Inductive Parallel Circuits 188 Computing Circuit Values 188 Summary 195 Review Questions 195 Chapter 15 Capacitors 197 Capacitors 199 Electrostatic Charge 200 Dielectric Constants 201 Capacitor Ratings 202 Capacitors Connected in Parallel 202 Capacitors Connected in a Series 203 Capacitive Charge and Discharge Rates 203 RC Time Constants 204 Applications for Capacitors 205 Nonpolarized Capacitors 205 Polarized Capacitors 207 Variable Capacitors 208 Testing Capacitors 208 Connecting the Capacitor into an AC Circuit 209 Capacitive Reactance 210 Voltage and Current Relationships in a Pure Capacitive Circuit 211 Power in a Pure Capacitive Circuit 212 Capacitor Voltage Rating 212 Effects of Frequency in a Capacitive Circuit 213 Summary 218 Review Questions 219 Chapter 16 Single-Phase Transformers 221 Single-Phase Transformers 223 Isolation Transformers 223 Autotransformers 233 Transformer Polarities 235 Voltage and Current Relationships in a Transformer 237 Testing the Transformer 238 Transformer Ratings 239 Determining Maximum Current 239 Transformer Impedance 239 Summary 240 Review Questions 241 Chapter 17 Single-Phases Motors 243 Split-Phase Motors 245 Resistance-Start Induction-Run Motors 246 Capacitor-Start Induction-Run Motors 250 Dual-Voltage Split-Phase Motors 251 Determining the Direction of Rotation for Split-Phase Motors 252 Capacitor-Start Capacitor-Run Motors 252 Shaded-Pole Induction Motors 254 Multispeed Motors 255 Single-Phase Synchronous Motors 256 Warren Motors 256 Universal Motors 257 Summary 259 Review Questions 260 Appendix A Trigonometric Functions-Natural Sines and Cosines 261 Appendix B Trigonometric Functions-Natural Tangents and Cotangents 263 Appendix C Alternating Current Formulas 265 Appendix D Greek Alphabet 270 Appendix E Scientific Notation 271 Appendix F Answers to Practice Problems 273 Index
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