Residential Wiring - Craftsman Book Company

1 $ Craftsman Book Company6058 Corte del Cedro / Box 6500 / Carlsbad, CA 92018 RReessiiddeennttiiaallWWiirriinnggto the 2011 NEC Make Studying for the Exam FunMake Studying for the Exam FunOrder the Interactive Study Centerdownload, with all the end-of-chapter test questions in interactiveself-test software. Only $ to scan the QR code with your Smartphoneby Jeff MarkellRevised byRob Adair& Dan AtchesonSAMPLEN ational electrical Code tables are reprinted with permission from NFPA 70 -2011, Copyright 2010,National Fire Protection Association, Quincy, MA. This reprinted material is not the complete and official position of the NFPA on the referenced subject, which is represented only by the standard in its electrical Code and NEC are registered trademarks of the National Fire Protection Association, Inc.

2 ,Quincy, MA Manager, Christine Bruneau; design, layout and photographs, Joan Hamilton; image conversion,Lori Boon; cover photos, Ed Kessler thanks to Greg Haukap, LLC, Venice, FloridaLooking for other construction reference manuals? Craftsman has the books to fill your toll-free 1-800-829-8123or write to Craftsman Book Company , Box 6500, Carlsbad, CA 92018 fora FREE CATALOGof over 100 books, including how-to manuals,annual cost books, and estimating edition 1984 by Reston Publishing Company , 0-8359-6661-5 Second edition 1987 by Craftsman Book CompanyISBN 0-934041-19-9 Third edition 1993 by Craftsman Book CompanyFourth edition 1996 by Craftsman Book CompanyFifth edition 1999 by Craftsman Book CompanySixth edition 2002 by Craftsman Book CompanySeventh edition 2004 by Craftsman Book CompanyEighth edition 2008 by Craftsman Book CompanyNinth edition 2012 by Craftsman Book CompanySAMPLECONTENTSI ntroduction.

3 51 electrical Energy .. 7 Historical Introduction .. 7 The Composition of Matter .. 8 Formation of Molecules .. 11 Static Electricity .. 12 Current Electricity .. 14 Ohm s Law .. 15 Watt s Law .. 17 electrical Measurements .. 18 Basic electrical Circuits .. 20 Effects of electrical Energy .. 23 Study Questions .. 262 Distribution of Alternating Current .. 29 DC Sources .. 29 Magnetic-Mechanical Generation . 30 Induction and AC Generation .. 35 Power in an AC Circuit .. 45 Study Questions .. 483 Tools and Safety .. 51 Conventional Hand Tools .. 51 Electrician s Hand Tools .. 54 Power Tools .. 57 Test Instruments.

4 60 Basic Wiring Techniques .. 63 Safety .. 67 Study Questions .. 774 Conductors .. 79 Wire Materials .. 83 Wire Size .. 84 Insulations .. 86 Color Code .. 90 Ampacities .. 91 Study Questions .. 935 Grouped Conductors .. 95 Nonmetallic-Sheathed Cable .. 95 Service Entrance Cable .. 97 Underground Feeder Cable .. 98 Armored Cable ..100 Flexible Metal Conduit ..101 Liquidtight Flexible Metal Conduit . 102 Rigid Metal Conduit ..103 electrical Metallic Tubing ..105 Rigid Polyvinyl Chloride Conduit . 106 Surface Metal Raceways ..107 Surface Nonmetallic Raceways ..108 Multioutlet Assembly ..108 Study Questions.

5 1096 electrical Boxes ..111 Metal Boxes ..111 Single-Gang Boxes ..112 4-Iinch Square Boxes ..115 Multiple-Gang Boxes ..116 Cut-In Boxes ..117 Octagon Boxes ..117 Weatherproof Boxes ..118 SAMPLE Plastic Boxes ..120 NEC Box Regulations ..122 Number of Conductors Permitted . 122 Entrance of Conductors into Boxes ..124 Study Questions ..1287 Wiring Switch Circuits and Outlets ..131 Switch Types ..131 Wiring Switch Circuits ..137 Wiring 3-Way Switch Circuits ..140 Switch/Outlet Combinations ..145 Outlets ..150 Study Questions ..1538 Plans ..155 A Residential Plan Set ..155 Types of Plans and their Uses ..157 Floor Plan Symbols.

6 159 Design of the electrical System ..160 Convenience Outlets ..160 Lighting Requirements ..165 Branch Circuits ..172 Cable Plans ..190 Wiring Diagrams ..192 TR/GFCI Circuits ..202 Appliances ..203 Service Load Computation ..206 Sizing the Service Entrance ..210 Estimating electrical Costs ..210 Study Questions ..2139 The Service Entrance ..215 Overhead Service Entrance ..215 Underground Services ..219 Meter Box ..220 Breaker Box ..221 Grounding ..222 Grounding Electrode System ..224 Overcurrent Protective Devices ..227 Fuses ..228 Circuit Breakers ..230 Combination Arc-Fault Circuit-Interrupter Breakers.

7 231 Study Questions ..23410 Rough Wiring ..237 Nonmetallic Cable ..237 BX Cable ..242 Flexible Metal Conduit ..244 Liquidtight Flexible Metal Conduit . 246 electrical Metallic Tubing ..246 The Conduit Bender ..249 Surface Raceways ..253 Identifying Rough Wiring ..254 Study Questions ..25511 Finish Wiring of New Work . 257 Receptacles ..257 Switches ..261 Appliances ..262 Light Fixtures ..266 Light Bulbs ..269 Breaker Box ..272 Study Questions ..27312 Additions and Alterations to Old Work ..275 Framing Types ..275 Concealing Additions/Alterations ..280 Exposed Additions/Alterations ..288 Study Questions ..29213 Troubleshooting and Repairs ..295 Safety First.

8 295 Shorts ..296 Overloads ..299 Receptacles ..305 Switches ..306 Light Fixtures ..309 Checking New Wiring ..315 Study Questions ..31814 Supplementary Systems ..321 Signaling and Warning Systems ..321 Communications ..328 Entertainment and Computer Systems ..330 Home Elevators and Stairway Chairlifts ..332 Residential Standby and Optional Power Systems ..333 Home electrical Vehicle Charging Stations ..335 Study Questions ..336 Answers to Chapter Questions ..339 Index ..341 SAMPLEINTRODUCTIONThis book was written for anyone who intends to make a living Wiring resi-dential buildings. If you can understand and follow the instructions in this manual, you should have no trouble installing safe, modern, efficient electrical systems in homes and an electrician, you need to know how to use a wide variety of tools and materials.

9 This manual describes the tools that should be in every electrician s tool box, and suggests how they can be used to best advantage. I ll also explain what you should know about electrical materials: wire, cable, conduit, fixtures, boxes, switches, breakers and panels. There s a correct tool and a right material for every purpose. Sometimes selecting the right tools and materials isn t easy. After read-ing this book, you should have little trouble choosing both the tools and materials appropriate for the work you manual isn t a book of electrical theory. But every professional electrician needs some background on how electricity is generated and distributed. And, of course, you should know how Ohm s Law and Watt s Law are used to design elec-trical systems.

10 The first two chapters cover these important you ve worked as an electrician for some time, you know that nearly every-thing an electrician does is governed by the National electrical Code , also referred to as NFPA 70 , published by the National Fire Protection Association (NFPA ), and the International Code Council (ICC) electrical Code. For our purposes, the only right way is the code way. Until you re comfortable with the NEC , doing everything the code way can be a nuisance. Once you understand the code and the reasons for code requirements, you may have a different perspective. Experienced electricians agree that the NEC protects everyone (including electricians and electrical contractors) and is a good guide to professional practice and should be followed even if the building inspector didn t spot a problem or enforce here s yet another reason to strictly adhere to the code.