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NFPA 70: National Electrical Code, 2011
- Important Notices and Disclaimers
- Additional Notices and Disclaimers
- 90 Introduction
- Chapter 1 General [Go to Page]
- 100 Definitions
- 110 Requirements for Electrical Installations
- Chapter 2 Wiring and Protection [Go to Page]
- 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 and Bonding
- 280 Surge Arresters, Over 1 kV
- 285 Surge-Protective Devices (SPDs), 1 kV or Less
- Chapter 3 Wiring Methods and Materials [Go to Page]
- 300 Wiring Methods
- 310 Conductors for General Wiring
- 312 Cabinets, Cutout Boxes, and Meter Socket Enclosures
- 314 Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosures
- 320 Armored Cable: Type AC
- 322 Flat Cable Assemblies: Type FC
- 324 Flat Conductor Cable: Type FCC
- 326 Integrated Gas Spacer Cable: Type IGS
- 328 Medium Voltage Cable: Type MV
- 330 Metal-Clad Cable: Type MC
- 332 Mineral-Insulated, Metal-Sheathed Cable: Type MI
- 334 Nonmetallic-Sheathed Cable: Types NM, NMC, and NMS
- 336 Power and Control Tray Cable: Type TC
- 338 Service-Entrance Cable: Types SE and USE
- 340 Underground Feeder and Branch-Circuit Cable: Type UF
- 342 Intermediate Metal Conduit: Type IMC
- 344 Rigid Metal Conduit: Type RMC
- 348 Flexible Metal Conduit: Type FMC
- 350 Liquidtight Flexible Metal Conduit: Type LFMC
- 352 Rigid Polyvinyl Chloride Conduit: Type PVC
- 353 High Density Polyethylene Conduit: Type HDPE Conduit
- 354 Nonmetallic Underground Conduit with Conductors: Type NUCC
- 355 Reinforced Thermosetting Resin Conduit: Type RTRC
- 356 Liquidtight Flexible Nonmetallic Conduit: Type LFNC
- 358 Electrical Metallic Tubing: Type EMT
- 360 Flexible Metallic Tubing: Type FMT
- 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
- 386 Surface Metal Raceways
- 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
- 399 Outdoor Overhead Conductors over 600 Volts
- Chapter 4 Equipment for General Use [Go to Page]
- 400 Flexible Cords and Cables
- 402 Fixture Wires
- 404 Switches
- 406 Receptacles, Cord Connectors, and Attachment Plugs (Caps)
- 408 Switchboards and Panelboards
- 409 Industrial Control Panels
- 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 Special Occupancies [Go to Page]
- 500 Hazardous (Classified) Locations, Classes I, II, and III, Divisions 1 and 2
- 501 Class I Locations
- 502 Class II Locations
- 503 Class III Locations
- 504 Intrinsically Safe Systems
- 505 Zone 0, 1, and 2 Locations
- 506 Zone 20, 21, and 22 Locations for Combustible Dusts or Ignitible Fibers/Flyings
- 510 Hazardous (Classified) Locations — Specific
- 511 Commercial Garages, Repair and Storage
- 513 Aircraft Hangars
- 514 Motor Fuel Dispensing Facilities
- 515 Bulk Storage Plants
- 516 Spray Application, Dipping, and Coating Processes
- 517 Health Care Facilities
- 518 Assembly Occupancies
- 520 Theaters, Audience Areas of Motion Picture and Television Studios, Performance Areas, and Similar Locations
- 522 Control Systems for Permanent Amusement Attractions
- 525 Carnivals, Circuses, Fairs, and Similar Events
- 530 Motion Picture and Television Studios and Similar Locations
- 540 Motion Picture Projection Rooms
- 545 Manufactured Buildings
- 547 Agricultural Buildings
- 550 Mobile Homes, Manufactured Homes, and Mobile Home Parks
- 551 Recreational Vehicles and Recreational Vehicle Parks
- 552 Park Trailers
- 553 Floating Buildings
- 555 Marinas and Boatyards
- 590 Temporary Installations
- Chapter 6 Special Equipment [Go to Page]
- 600 Electric Signs and Outline Lighting
- 604 Manufactured Wiring Systems
- 605 Office Furnishings (Consisting of Lighting Accessories and Wired Partitions)
- 610 Cranes and Hoists
- 620 Elevators, Dumbwaiters, Escalators, Moving Walks, Platform Lifts, and Stairway Chairlifts
- 625 Electric Vehicle Charging System
- 626 Electrified Truck Parking Spaces
- 630 Electric Welders
- 640 Audio Signal Processing, Amplification, and Reproduction Equipment
- 645 Information Technology Equipment
- 647 Sensitive Electronic Equipment
- 650 Pipe Organs
- 660 X-Ray Equipment
- 665 Induction and Dielectric Heating Equipment
- 668 Electrolytic Cells
- 669 Electroplating
- 670 Industrial Machinery
- 675 Electrically Driven or Controlled Irrigation Machines
- 680 Swimming Pools, Fountains, and Similar Installations
- 682 Natural and Artificially Made Bodies of Water
- 685 Integrated Electrical Systems
- 690 Solar Photovoltaic (PV) Systems
- 692 Fuel Cell Systems
- 694 Small Wind Electric Systems
- 695 Fire Pumps
- Chapter 7 Special Conditions [Go to Page]
- 700 Emergency Systems
- 701 Legally Required Standby Systems
- 702 Optional Standby Systems
- 705 Interconnected Electric Power Production Sources
- 708 Critical Operations Power Systems (COPS)
- 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
- 727 Instrumentation Tray Cable: Type ITC
- 760 Fire Alarm Systems
- 770 Optical Fiber Cables and Raceways
- Chapter 8 Communications Systems [Go to Page]
- 800 Communications Circuits
- 810 Radio and Television Equipment
- 820 Community Antenna Television and Radio Distribution Systems
- 830 Network-Powered Broadband Communications Systems
- 840 Premises-Powered Broadband Communications Systems
- Chapter 9 Tables
- Informative Annex A Product Safety Standards
- Informative Annex B Application Information for Ampacity Calculation
- Informative Annex C Conduit and Tubing Fill Tables for Conductors and Fixture Wires of the Same Size
- Informative Annex D Examples
- Informative Annex E Types of Construction
- Informative Annex F Availability and Reliability for Critical Operations Power Systems; and Development and Implementation of Functional Performance Tests (FPTs) for Critical Operations Power Systems
- Informative Annex G Supervisory Control and Data Acquisition (SCADA)
- Informative Annex H Administration and Enforcement
- Informative Annex I Recommended Tightening Torque Tables from UL Standard 486A-B
- Index
- Formal Interpretations
- Tentative Interim Amendment [Go to Page]
