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Wiring Simplified: Based on the 2008 National Electrical Code / Edition 42

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Revised and completely updated for the 2008 National Electric Code, this small manual continues its 75-year history of demonstrating how to install safe, convenient, and economical wiring. Encouraging readers to tackle jobs small and large, the guide covers everything from repairing a table lamp to wiring a whole house. After introducing the basics—standards, codes, safety practices, and an overview of how electricity is measured and delivered—chapters show how to design a layout for lights, switches, and receptacles; run a line from a utility pole; install wires, circuits, and grounds; and handle special projects such as replacing old wiring and wiring detached garages and accessory buildings.

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Editorial Reviews

From the Publisher

"Like having a tiny electrician in your bookshelf."  —Jerry Alonzy, editor,

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Product Details

  • ISBN-13: 9780971977938
  • Publisher: Park Publishing, Inc.
  • Publication date: 6/1/2008
  • Edition description: Revised
  • Edition number: 42
  • Pages: 243
  • Product dimensions: 5.50 (w) x 8.40 (h) x 0.60 (d)

Meet the Author

H. P. Richter wrote the first edition of Wiring Simplified in 1932. W. C. Schwan was the author of subsequent editions of Wiring Simplified until 2002. He lives in Hayward, California. F. P. Hartwell became the new author of Wiring Simplified—after W. C. Schwan—with the 40th edition. He is the secretary of the Massachusetts Electrical Code Advisory Committee and the author of Practical Electrical Wiring. He lives in Amherst, Massachusetts.

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Table of Contents

Tables     vii
Preface to 32nd Edition     viii
Prefaces to 39th and 42nd Editions     ix
Introduction and Guide     x
Getting Started-The Basics
Standards, Codes, and Safety     1
Standards     1
Codes, Permits, and Licenses     3
Safety Practices     5
Planning Your Electrical Installation     8
Consider Present and Future Needs     8
Location of Lighting, Switches, and Receptacle Outlets     9
Choosing Lighting Fixtures     14
Lighting and Receptacles for Garages and Outbuildings     18
Measuring Electricity     19
Units of Measurement     19
Residential Electrical Power     21
Types of Electric Current     23
Wires, Circuits, and Grounding
Wire-Selecting and Connecting     26
Wire Sizes     26
Wire Types     31
Cable Types     33
Flexible Cords     35
Tools Used for Wiring Jobs     36
Terminals for Connecting Wires to Devices     36
Connectors for Splicing Wires     39
Circuit Protection and Planning     42
Overcurrent Devices     42
Feeders and Branch Circuits     45
Calculating Branch Circuits Needs     46
Circuit Diagrams     51
Grounded Wires     51
Wiring Diagrams     52
Grounding for Safety     62
How Dangerous Are Shocks?     63
Grounding Basics     63
Grounding Overview     64
How Grounding Promotes Safety     66
Grounding Considerations for Wiring Systems     69
Grounding-Type Receptacles Increase Safety     71
Ground-Fault Circuit Interrupter (GFCI)     72
Surge Protective Devices     73
Installing Service Equipment and Wiring
The Service Entrance     75
Planning Your Service Entrance     75
Disconnecting Means     77
Installing the Service Entrance     80
Making Ground Connections     89
Emergency Backup Generators     93
Outlet and Switch Boxes     96
Planning Your Box Installation     96
Installing Boxes     100
Selecting Switches     105
Faceplates     106
Basic Wiring Procedures     107
Planning the Installation     107
Feeding and Connecting the Wires      110
Two-Circuit Duplex Receptacles     114
Special Rules on Receptacle Design     115
Three-Wire (Multiwire) Circuits     115
Detached Garages and Accessory Buildings     118
Cable-Nonmetallic-Sheathed and Metal-Clad     121
Nonmetallic-Sheathed Cable     121
Metal-Clad Cable     127
Armored Cable     129
Tubular Raceways     132
Choosing and Installing Tubular Raceways     132
Nonflexible Heavy-Wall Conduit     133
Tubing (Thinwall Nonflexible Raceways)     136
Flexible Raceways     138
Installing Wires in Conduit     140
Modernizing Old Wiring     141
Problems of "Old Work"     142
Wiring Methods     142
Installing New Service and Circuits     144
Installing Boxes and Running Cable     146
Installing Switches, Receptacles, and Outlets     155
Appliances     158
Receptacles     158
Individual Circuits for Appliances     160
Grounding of Appliances     161
Disconnecting Means and Overcurrent Protection     161
Wiring of Common Heavy Appliances     162
Finishing Your Electrical Installation     166
Installing Devices in Boxes     166
Hanging Fixtures     167
Special Wiring Situations and Projects
Electric Motors     170
Work Capacity of Motors     170
Power Consumed by Motors     171
Types of Motors     172
Large Motors on Farms     173
Phase Converters     174
Motor Circuit Requirements     175
Installing the Motor     179
Farm Wiring     180
Locating the Meter Pole ("Distribution Point" in NEC Terminology)     180
Determining Size of Wires and Service     185
Installing Overhead Wiring     188
Installing Underground Wiring     188
Installing Service Equipment at Buildings     190
Grounding Electrodes-Location, Installation, and Special Requirements     192
Wiring Branch Circuits and Outlets in Farm Buildings     195
Farm Safety     202
Low-Voltage Wiring     204
Telephone Wiring     204
Grounding     206
Home Computer Network Wiring     207
Doorbells, Chimes and Other Low-Voltage Controls     207
Low-Voltage Switches     209
Wireless Radio-Controlled Switches     210
Central Vacuum Systems     211
Troubleshooting and Repairs     212
Troubleshooting Fuses and Circuit Breakers     212
Updating Aluminum Wiring     215
Replacing Wall Switches     216
Testing and Replacing Wall Receptacles     216
Troubleshooting Light Fixtures     218
Troubleshooting Cords and Plugs     219
Repairing Table and Floor Lamps     220
Troubleshooting Doorbells and Chimes     221
Glossary     223
Index     231
About the Authors     243
Order form     244
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