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1 About This Textbook...xi About the National Electrical Code...xv About the Authors and Illustrator...xix About the Team...xxi Article 90 Introduction to the National Electrical Code Purpose of the NEC... 2 Chapter 1 General... 5 Article 100 Definitions...7 Accessible, Readily (Readily Accessible)... 8 Adjustable Speed Drive... 8 Adjustable Speed Drive System...9 Cable Routing Assembly...9 Communications Equipment...10 Communications Raceway...10 Concealed...11 Control Circuit...11 Coordination (Selective)...12 Device...13 Effective Ground-Fault Current Path Electric-Discharge Lighting...14 Exposed (as applied to live parts) Ground-Fault Current Path...15 Grounding Conductor, Equipment (EGC) Hermetic Refrigerant Motor-Compressor Intersystem Bonding Termination Lighting Track (Track Lighting) Location, Damp...18 Premises Wiring...18 Raceway...19 Retrofit Kit...20 Sealable Equipment Separately Derived System Voltage, Nominal Article 110 Requirements for Electrical Installations Scope Conductor Termination and Splicing Arc-Flash Hazard Warning Markings Identification of Disconnecting Means Available Fault Current Lockable Disconnecting Means Spaces About Electrical Equipment Guarding Chapter 2 Wiring and Protection Article 200 Use and Identification of Grounded [Neutral] Conductors Neutral Conductors Neutral Conductor Identification Article 210 Branch Circuits Multiwire Branch Circuits GFCI Protection Arc-Fault Circuit-Interrupter Protection Electric Vehicle Branch Circuit Conductor Sizing Permissible Loads, Individual Branch Circuits General Dwelling Unit Receptacle Outlet Requirements Show Windows Electrical Service Areas Article 215 Feeders Minimum Rating Mike Holt Enterprises, Inc NEC.CODE ( ) v

2 Article 220 Branch-Circuit, Feeder, and Service Calculations Application of Other Articles General Lighting Other Loads All Occupancies Article 225 Outside Branch Circuits and Feeders Masts as Supports Raceway Seal Type...71 Article 230 Services Conductors Considered Outside a Building Point of Attachment Service Masts Used as Supports Size and Rating...77 Article 240 Overcurrent Protection Overcurrent Protection Location in Circuit Article 250 Grounding and Bonding Termination of Grounding and Bonding Conductors Protection of Fittings Ungrounded Systems 50V to 1,000V Service Equipment Grounding and Bonding Grounding Electrode Conductor Grounding Electrode Conductor Installation Sizing Grounding Electrode Conductor Termination to the Grounding Electrode Bonding in Hazardous (Classified) Locations Bonding Conductors and Jumpers Identification of Equipment Grounding Conductors Use of Equipment Grounding Conductors Sizing Equipment Grounding Conductor Replacing Nongrounding Receptacles Article 285 Surge Protective Devices (SPDs) Scope Type 4 and Other Component Type SPDs Chapter 3 Wiring Methods and Materials Article 300 General Requirements for Wiring Methods and Materials Scope Underground Installations Protection Against Corrosion and Deterioration Wiring in Ducts Not for Air Handling, Fabricated Ducts for Environmental Air, and Other Spaces for Environmental Air (Plenums) Article 310 Conductors for General Wiring Conductor Ampacity Article 312 Cabinets, Cutout Boxes, and Meter Socket Enclosures Enclosures Enclosures With Splices, Taps, and Feed-Through Conductors Article 314 Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; and Handhole Enclosures Damp or Wet Locations Conductors That Enter Boxes or Conduit Bodies Support of Boxes and Conduit Bodies Covers and Canopies Outlet Box Wiring to be Accessible Article 320 Armored Cable (Type AC) In Accessible Attics or Roof Spaces Article 330 Metal-Clad Cable (Type MC) Uses Permitted Securing and Supporting Article 334 Nonmetallic-Sheathed Cable (Types NM and NMC) Uses Permitted Uses Not Permitted vi Mike Holt s Illustrated Guide to Changes to the NEC 2014

3 Article 338 Service-Entrance Cable (Types SE and USE) Uses Permitted Article 344 Rigid Metal Conduit (Type RMC) Securing and Supporting Construction Article 348 Flexible Metal Conduit (Type FMC) Securing and Supporting Article 350 Liquidtight Flexible Metal Conduit (Type LFMC) Securing and Supporting Fittings Article 352 Rigid Polyvinyl Chloride Conduit (Type PVC) Definition Rigid Polyvinyl Chloride Conduit (PVC) Article 356 Liquidtight Flexible Nonmetallic Conduit (Type LFNC) Securing and Supporting Article 376 Metal Wireways Number of Conductors and Ampacity Splices, Taps, and Power Distribution Blocks Article 386 Surface Metal Raceways Securing and Supporting Article 392 Cable Trays Equipment Grounding Conductor Article 393 Low Voltage Suspended Ceiling Power Distribution Systems Chapter 4 Equipment for General Use Article 400 Flexible Cords and Flexible Cables Equipment Grounding Conductor Identification Article 404 Switches Switch Connections Mounting Snap Switches Article 406 Receptacles, Cord Connectors, and Attachment Plugs (Caps) Receptacle Rating and Type General Installation Requirements Receptacle Mounting Receptacles in Damp or Wet Locations Tamper-Resistant Receptacles Dimmer-Controlled Receptacles Article 408 Switchboards and Panelboards Field Identification Article 410 Luminaires, Lampholders, and Lamps Listing Required Luminaires in Specific Locations General Installation Article 411 Lighting Systems Operating at 30V or Less and Lighting Equipment Connected to Class-2 Power Sources Article 422 Appliances Ground-Fault Circuit-Interrupter (GFCI) Protection Flexible Cords Space for Conductors Outlet Boxes to Be Covered Covering of Combustible Material at Outlet Boxes Tire Inflation and Automotive Vacuum Machines Vending Machines Article 430 Motors, Motor Circuits, and Controllers Disconnect Requirement Article 440 Air-Conditioning and Refrigeration Equipment Location Mike Holt Enterprises, Inc NEC.CODE ( ) vii

4 Article 445 Generators Marking Bushings Ground-Fault Circuit Interrupter Protection for Receptacles on 15 kw or Smaller Portable Generators Article 450 Transformers Grounding and Bonding Marking Disconnecting Means Article 525 Carnivals, Circuses, Fairs, and Similar Events Equipment Grounding Conductor Continuity Assurance Article 547 Agricultural Buildings Definitions Equipotential Plane Wiring Methods Article 555 Marinas and Boatyards Definitions Marine Power Outlet Grounding Chapter 5 Special Occupancies Article 500 Hazardous (Classified) Locations Equipment Article 501 Class I Hazardous (Classified) Locations Wiring Methods Raceway and Cable Seals Grounding and Bonding Receptacles and Attachment Plugs Article 502 Class II Hazardous (Classified) Locations Wiring Methods Luminaires Flexible Cords Receptacles and Attachment Plugs Article 503 Class III Hazardous (Classified) Locations Wiring Methods Article 514 Motor Fuel Dispensing Facilities Classification of Locations Article 517 Health Care Facilities Definitions Patient Care Space Isolated Ground Receptacles General Care Areas Article 590 Temporary Installations General Ground-Fault Protection for Personnel Chapter 6 Special Equipment Article 600 Electric Signs and Outline Lighting Listing Markings Disconnecting Means Grounding and Bonding Ballasts, Transformers, Class 2 Power Sources, and Electronic Power Supplies Article 620 Elevators, Escalators, and Moving Walks Disconnecting Means Article 640 Audio Signal Processing, Amplification, and Reproduction Equipment Scope Audio Systems Near Bodies of Water Article 645 Information Technology Equipment System Grounding viii Mike Holt s Illustrated Guide to Changes to the NEC 2014

5 Article 646 Modular Data Centers Article 680 Swimming Pools, Spas, Hot Tubs, Fountains, and Similar Installations Definitions Storable Swimming Pool Overhead Conductor Clearance Equipment Rooms and Pits Maintenance Disconnecting Means Motors Lighting, Receptacles, and Equipment Equipotential Bonding Part III. Storable Swimming Pools, Storable Spas, and Storable Hot Tubs Outdoor Installations Indoor Installations Signs in or Adjacent to Fountains Equipotential Bonding Chapter 7 Special Conditions Article 700 Emergency Systems Surge Protection General Requirements Emergency Illumination Multiwire Branch Circuits Ground-Fault Protection of Equipment Selective Coordination Article 701 Legally Required Standby Systems General Requirements Ground-Fault Protection of Equipment Selective Coordination Article 725 Remote-Control, Signaling, and Power-Limited Circuits Other Articles Installation of Class 2, Class 3, and PLTC Cables Conductors of Different Circuits in the Same Cable, Enclosure, Cable Tray, Raceway, or Cable Routing Assembly Applications of Class 2 and Class 3 Cables Article 760 Fire Alarm Systems Other Articles Fire Alarm Circuit Cables Extending Beyond a Building Installation of PLFA Cables in Buildings Power-Limited Fire Alarm Circuits, Class 2, Class 3, and Communications Circuits Applications of Power-Limited Fire Alarm Cables (PLFA) Article 770 Optical Fiber Cables and Raceways Definitions Innerduct Definitions Optical Fiber Cable Definitions Point of Entrance Innerduct Mechanical Execution of Work Unlisted Cables Entering Buildings Metallic Entrance Conduit Grounding Raceways and Cable Routing Assemblies for Optical Fiber Cables Installation of Optical Fiber Cables Installation of Optical Fiber Cables Article 702 Optional Standby Systems Signs Outdoor Generator Sets Mike Holt Enterprises, Inc NEC.CODE ( ) ix

6 Chapter 8 Communications Systems Article 800 Communications Circuits Definitions Innerduct Definitions Point of Entrance Innerduct Mechanical Execution of Work Metallic Entrance Conduit Grounding Raceways and Cable Routing Assemblies for Communications Wires and Cables Installation of Communications Cables, Communications Raceways, and Cable Routing Assemblies Installation of Communications Cables Applications of Communications Cables, Communications Raceways, and Cable Routing Assemblies Annex J ADA Standards for Accessible Design final exam for Changes to the NEC Index Article 810 Radio and Television Equipment Antenna Lead-In Protectors Grounding Devices Article 820 Community Antenna Television (CATV) and Radio Distribution Systems Definitions Point of Entrance Mechanical Execution of Work Metallic Entrance Conduit Grounding Raceways for Coaxial Cables x Mike Holt s Illustrated Guide to Changes to the NEC 2014

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