Article
Definitions
Requirements for Electrical Installations
CHAPTER 1
100: Definitions
110: Requirements for Electrical Installations
CHAPTER 2
200: Use and Identification of Grounded Conductors
210: Branch Circuits
215: Feeders
220: Branch Circuit, Feeder, and Service Calculations
225: Outside Branch Circuits and Feeders
230: Services
240: Overcurrent Protection
250: Grounding
Article
280: Surge Arresters
285: Transient Voltage Surge Suppressors (TVSS)
CHAPTER 3
300: Wiring Methods
310: Conductors for General Wiring
312: Cabinets, Circuit Boxes, and Meter Socket Enclosures
314: Outlet, Device, Pull, and Junction Boxes, Conduit Bodies,
Fittings, and Manholes
320: Armored Cable
322: Flat Cable Assemblies
324: Flat Conductor Cable: Type FCC
326: Integrated Gas Spacer Cable: Type IGS
328: Medium Voltage Cable: Type MV
330: Metal-Clad Cable
332: Mineral-Insulated, Metal-Sheathed Cable
334: Nonmetallic-Sheathed Cable
336: Power and Control Tray Cable: Type TC
338: Service-Entrance Cable
340: Underground Feeder and Branch-Circuit Cable
342: Intermediate Metal Conduit
344: Rigid Metal Conduit
348: Flexible Metal Conduit: Type LFMC
350: Liquidtight Flexible Nonmetallic Conduit: Type LFNC
352: Rigid Nonmetallic Conduit
356: Liquidtight Flexible Nonmetallic Conduit: Type LFNC
358: Electrical Metallic Tubing: Type EMT
360: Flexible Metallic Tubing: Type FMC
362: Electrical Nonmetallic Tubing: Type ENT
366: Auxiliary Gutters
368: Busways
370: Cablebus
372: Cellular Concrete Floor Raceways
374: Cellular Metal Floor Raceways
376: Metal Wireways
378: Nonmetallic Wireways
380: Multioutlet Assembly
382: Nonmetallic Extensions
384: Strut-Type Channel Raceway
388: Surface Nonmetallic Raceways
390: Underfloor Raceways
392: Cable Trays
394: Concealed Knob-and-Tube Wiring
396: Messenger-Supported Wiring
398: Open Wiring on Insulators
CHAPTER 4
400: Flexible Cords and Cables
402: Fixture Wires
404: Switches
406: Receptacles, Cord Connectors, and Attachment Plugs
408: Switches and Panelboards
410: Luminaires, Lampholders, and Lamps
411: Lighting Systems Operating at 30 Volts or Less
422: Appliances
424: Fixed Electric Space-Heating Equipment
426: Fixed Outdoor Electric Deicing and Snow-Melting Equipment
427: Fixed Electric Heating Equipment for Pipelines and Vessels
430: Motors, Motor Circuits, and Controllers
440: Air-Conditioning and Refrigerating Equipment
445: Generators
450: Transformers and Transformer Vaults (Including Secondary
Ties)
455: Phase Converters
460: Capacitors
470: Resistors and Reactors
480: Storage Batteries
490: Equipment over 600 Volts Nominal
CHAPTER 5
500: Hazardous (Classified) Locations
501: Class I Locations
502: Class II Locations
503: Class III Locations
504: Intrinsically Safe Systems
505: Class I, Zone 0, 1, and 2 Locations
511: Commercial Garages, Repair and Storage
513: Aircraft Hangars
514: Gasoline Dispensing and Service Stations
515: Bulk Storage Plants
516: Spray Application, Dipping, and Coating Processes
517: Health Care Facilities
518: Places of Assembly
520: Theaters, Audience Areas of Motion Picture and Television
Studios, and Similar Locations
525: Carnivals, Circuses, Fairs, and Similar Events
527: Temporary Wiring
530: Motion Picture and Television Studios and Similar Locations
540: Motion Picture Projection Rooms
547: Agricultural Buildings
550: Mobile Homes, Manufactured Homes, and Mobile Home Parks
551: Recreational Vehicles and Recreational Vehicle Parks
553: Floating Buildings
555: Marinas and Boatyards
CHAPTER 6
600: Electric Signs and Outline Lighting
604: Manufactured Wiring Systems
605: Office Furnishings
610: Cranes and Hoists
620: Elevators, Dumbwaiters, Escalators, Moving Walks, Wheelchair
Lifts, and Stairway Chair Lifts
630: Electric Welders
640: Sound-Recording and Similar Equipment
645: Information Technology Equipment
650: Pipe Organs
660: X-Ray Equipment
665: Induction and Dielectric Heating Equipment
668: Electrolytic Cells
670: Industrial Machinery
680: Swimming Pools, Fountains, and Similar Installations
690: Solar Photovoltaic Systems
CHAPTER 7
700: Emergency Systems
701: Legally Required Standby Systems
702: Optional Standby Systems
705: Interconnected Electric Power Production Sources
720: Circuits and Equipment Operating at Less Than 50 Volts
725: Class 1, Class 2, and Class 3 Remote-Control, Signaling, and
Power-Limited Circuits
760: Fire Alarm Systems
770: Optical Fiber Cables and Raceways
780: Closed-Loop and Programmed Power Distribution
CHAPTER 8
800: Communications Circuits
810: Radio and Television Equipment
CHAPTER 9
Tables
Annex A: Product Safety Standards
Annex B: Application Information for Ampacity Calculation
Annex C: Concuit and Tubing Fill Tables for Conductor and Fixture
Wires of the Same Size
Annex D: Examples
Index