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1
Q

Article 100

A

Definitions

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2
Q

ARTICLE 200

A

Use and Identification of Grounded
Conductors

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3
Q

ARTICLE 90

A

Introduction

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3
Q

ARTICLE 110

A

Requirements for Electrical Installations

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5
Q

ARTICLE 210

A

Branch Circuits

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6
Q

ARTICLE 215

A

Feeders

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7
Q

ARTICLE 220

A

Branch-Circuit, Feeder, and Service Load
Calculations

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8
Q

ARTICLE 225

A

Outside Branch Circuits and Feeders

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9
Q

ARTICLE 230

A

Services

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10
Q

ARTICLE 240

A

Overcurrent Protection

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11
Q

ARTICLE 250

A

Grounding and Bonding

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12
Q

ARTICLE 280

A

Surge Arresters, Over 1000 Volts

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13
Q

ARTICLE 285

A

Surge-Protective Devices (SPDs),
1000 Volts or Less

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14
Q

ARTICLE 300

A

General Requirements for Wiring Methods
and Materials

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15
Q

ARTICLE 310

A

Conductors for General Wiring

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16
Q

ARTICLE 312

A

Cabinets, Cutout Boxes, and Meter Socket
Enclosures

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17
Q

ARTICLE 314

A

Outlet, Device, Pull, and Junction Boxes;
Conduit Bodies; Fittings; and Handhole
Enclosures

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18
Q

ARTICLE 320

A

Armored Cable: Type AC

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19
Q

ARTICLE 322

A

Flat Cable Assemblies: Type FC

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20
Q

ARTICLE 324

A

Flat Conductor Cable: Type FCC

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21
Q

ARTICLE 326

A

Integrated Gas Spacer Cable: Type IGS

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22
Q

ARTICLE 328

A

Medium Voltage Cable: Type MV

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23
Q

ARTICLE 330

A

Metal-Clad Cable: Type MC

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24
Q

ARTICLE 332

A

Mineral-Insulated, Metal-Sheathed Cable:
Type MI

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25
Q

ARTICLE 334

A

Nonmetallic-Sheathed Cable: Types NM,
NMC, and NMS

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26
Q

ARTICLE 336

A

Power and Control Tray Cable: Type TC

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27
Q

ARTICLE 338

A

Service-Entrance Cable: Types SE and USE

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28
Q

ARTICLE 340

A

Underground Feeder and Branch-Circuit
Cable: Type UF

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29
Q

ARTICLE 342

A

Intermediate Metal Conduit: Type IMC

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30
Q

ARTICLE 344

A

Rigid Metal Conduit: Type RMC

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31
Q

ARTICLE 348

A

Flexible Metal Conduit: Type FMC

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32
Q

ARTICLE 350

A

Liquidtight Flexible Metal Conduit: Type
LFMC

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33
Q

ARTICLE 352

A

Rigid Polyvinyl Chloride Conduit: Type
PVC

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34
Q

ARTICLE 353

A

High Density Polyethylene Conduit: Type
HDPE Conduit

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35
Q

ARTICLE 354

A

Nonmetallic Underground Conduit with
Conductors: Type NUCC

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36
Q

ARTICLE 355

A

Reinforced Thermosetting Resin Conduit:
Type RTRC

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37
Q

ARTICLE 356

A

Liquidtight Flexible Nonmetallic Conduit:
Type LFNC

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38
Q

ARTICLE 358

A

Electrical Metallic Tubing: Type EMT

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39
Q

ARTICLE 360

A

Flexible Metallic Tubing: Type FMT

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40
Q

ARTICLE 362

A

Electrical Nonmetallic Tubing: Type ENT

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41
Q

ARTICLE 366

A

Auxiliary Gutters

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42
Q

ARTICLE 368

A

Busways

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43
Q

ARTICLE 370

A

Cablebus

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44
Q

ARTICLE 372

A

Cellular Concrete Floor Raceways

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45
Q

ARTICLE 374

A

Cellular Metal Floor Raceways

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46
Q

ARTICLE 376

A

Metal Wireways

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47
Q

ARTICLE 378

A

Nonmetallic Wireways

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48
Q

ARTICLE 380

A

Multioutlet Assembly

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49
Q

ARTICLE 382

A

Nonmetallic Extensions

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50
Q

ARTICLE 384

A

Strut-Type Channel Raceway

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51
Q

ARTICLE 386

A

Surface Metal Raceways

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52
Q

ARTICLE 388

A

Surface Nonmetallic Raceways

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53
Q

ARTICLE 390

A

Underfloor Raceways

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54
Q

ARTICLE 392

A

Cable Trays

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55
Q

ARTICLE 393

A

Low-Voltage Suspended Ceiling Power
Distribution Systems

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56
Q

ARTICLE 394

A

Concealed Knob-and-Tube Wiring

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57
Q

ARTICLE 396

A

Messenger-Supported Wiring

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58
Q

ARTICLE 398

A

Open Wiring on Insulators

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59
Q

ARTICLE 399

A

Outdoor Overhead Conductors over
1000 Volts

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60
Q

ARTICLE 400

A

Flexible Cords and Flexible Cables

61
Q

ARTICLE 402

A

Fixture Wires

62
Q

ARTICLE 404

63
Q

ARTICLE 406

A 
Receptacles, Cord Connectors, and
Attachment Plugs (Caps)
64
Q

ARTICLE 408

A

Switchboards, Switchgear, and
Panelboards

65
Q

ARTICLE 410

A

Luminaires, Lampholders, and Lamps

66
Q

ARTICLE 411

A

Low-Voltage Lighting

67
Q

ARTICLE 422

A

Appliances

68
Q

ARTICLE 424

A

Fixed Electric Space-Heating Equipment

69
Q

ARTICLE 425

A

Fixed Resistance and Electrode Industrial
Process Heating Equipment

70
Q

ARTICLE 426

A

Fixed Outdoor Electric Deicing and SnowMelting Equipment

71
Q

ARTICLE 427

A

Fixed Electric Heating Equipment for
Pipelines and Vessels

72
Q

ARTICLE 430

A

Motors, Motor Circuits, and Controllers

73
Q

ARTICLE 440

A

Air-Conditioning and Refrigerating
Equipment

74
Q

ARTICLE 445

A

Generators

75
Q

ARTICLE 450

A

Transformers and Transformer Vaults

(Including Secondary Ties)

76
Q

ARTICLE 455

A

Phase Converters

77
Q

ARTICLE 460

A

Capacitors

78
Q

ARTICLE 470

A

Resistors and Reactors

79
Q

ARTICLE 480

A

Storage Batteries

80
Q

ARTICLE 490

A

Equipment Over 1000 Volts, Nominal

81
Q

ARTICLE 500

A

Hazardous (Classified) Locations,
Classes I, II, and III, Divisions 1 and 2

82
Q

ARTICLE 501

A

Class I Locations

Part I. General
501.1 Scope. Article 501 covers the requirements for electri‐
cal and electronic equipment and wiring for all voltages in
Class I, Division 1 and 2 locations where fire or explosion
hazards may exist due to flammable gases or vapors or flamma‐
ble liquids.
Informational Note: For the requirements for electrical and
electronic equipment and wiring for all voltages in Zone 0, Zone
1, or Zone 2 hazardous (classified) locations where fire or explo‐
sion hazards may exist due to flammable gases or vapors or flam‐
mable liquids, refer to Article 505

83
Q

ARTICLE 502

A

Class II Locations

Part I. General
502.1 Scope. Article 502 covers the requirements for electri‐
cal and electronic equipment and wiring for all voltages in
Class II, Division 1 and 2 locations where fire or explosion
hazards may exist due to combustible dust

84
Q

ARTICLE 503

A

Class III Locations

Part I. General
503.1 Scope. Article 503 covers the requirements for electri‐
cal and electronic equipment and wiring for all voltages in
Class III, Division 1 and 2 locations where fire or explosion
hazards may exist due to ignitible fibers/flyings.

85
Q

ARTICLE 504

A

Intrinsically Safe Systems

86
Q

ARTICLE 505

A

Zone 0, 1, and 2 Locations

87
Q

ARTICLE 506

A

Zone 20, 21, and 22 Locations for
Combustible Dusts or Ignitible Fibers/
Flyings

88
Q

ARTICLE 510

A

Hazardous (Classified) Locations —
Specific

89
Q

ARTICLE 511

A

Commercial Garages, Repair and Storage

90
Q

ARTICLE 513

A

Aircraft Hangars

513.1 Scope. This article shall apply to buildings or structures
in any part of which aircraft containing Class I (flammable)
liquids or Class II (combustible) liquids whose temperatures
are above their flash points are housed or stored and in which
aircraft might undergo service, repairs, or alterations. It shall
not apply to locations used exclusively for aircraft that have
never contained fuel or unfueled aircraft.

91
Q

ARTICLE 514

A

Motor Fuel Dispensing Facilities

92
Q

ARTICLE 516

A

Spray Application, Dipping, Coating, and
Printing Processes Using Flammable or
Combustible Materials

93
Q

ARTICLE 517

A

Health Care Facilities

94
Q

ARTICLE 520

A

Theaters, Audience Areas of Motion
Picture and Television Studios,
Performance Areas, and Similar Locations

95
Q

ARTICLE 522

A

Control Systems for Permanent
Amusement Attractions

96
Q

ARTICLE 525

A

Carnivals, Circuses, Fairs, and Similar
Events

97
Q

ARTICLE 530

A

Motion Picture and Television Studios and
Similar Locations

98
Q

ARTICLE 540

A

Motion Picture Projection Rooms

99
Q

ARTICLE 545

A

Manufactured Buildings

100
Q

ARTICLE 547

A

Agricultural Buildings

101
Q

ARTICLE 550

A

Mobile Homes, Manufactured Homes, and
Mobile Home Parks

102
Q

ARTICLE 551

A

Recreational Vehicles and Recreational
Vehicle Parks

103
Q

ARTICLE 552

A

Park Trailers

104
Q

ARTICLE 553

A

Floating Buildings

105
Q

ARTICLE 555

A

Marinas, Boatyards, and Commercial and
Noncommercial Docking Facilities

106
Q

ARTICLE 590

A

Temporary Installations

107
Q

ARTICLE 600

A

Electric Signs and Outline Lighting

108
Q

ARTICLE 604

A

Manufactured Wiring Systems

109
Q

ARTICLE 605

A

Office Furnishings

110
Q

ARTICLE 610

A

Cranes and Hoists

111
Q

ARTICLE 620

A

Elevators, Dumbwaiters, Escalators,
Moving Walks, Platform Lifts, and
Stairway Chairlifts

112
Q

ARTICLE 625

A

Electric Vehicle Charging System

113
Q

ARTICLE 626

A

Electrified Truck Parking Spaces

114
Q

ARTICLE 630

A

Electric Welders

115
Q

ARTICLE 640

A

Audio Signal Processing, Amplification,
and Reproduction Equipment

116
Q

ARTICLE 646

A

Modular Data Centers

117
Q

ARTICLE 647

A

Sensitive Electronic Equipment

118
Q

ARTICLE 650

A

Pipe Organs

650.1 Scope. This article covers those electrical circuits and
parts of electrically operated pipe organs that are employed for
the control of the keyboards and of the sounding apparatus,
typically organ pipes.

119
Q

ARTICLE 660

A

X-Ray Equipment

120
Q

ARTICLE 665

A

Induction and Dielectric Heating
Equipment

Part I. General
665.1 Scope. This article covers the construction and installa‐
tion of dielectric heating, induction heating, induction melt‐
ing, and induction welding equipment and accessories for
industrial and scientific applications. Medical or dental applica‐
tions, appliances, or line frequency pipeline and vessel heating
are not covered in this article.

121
Q

ARTICLE 668

A

Electrolytic Cells

122
Q

ARTICLE 669

A

Electroplating

123
Q

ARTICLE 670

A

Industrial Machinery

124
Q

ARTICLE 675

A

Electrically Driven or Controlled Irrigation
Machines

125
Q

ARTICLE 680

A

Swimming Pools, Fountains, and Similar
Installations

126
Q

ARTICLE 682

A

Natural and Artificially Made Bodies of
Water

127
Q

ARTICLE 685

A

integrated Electrical Systems

Part I. General
685.1 Scope. This article covers integrated electrical systems,
other than unit equipment, in which orderly shutdown is
necessary to ensure safe operation. An integrated electrical system
as used in this article is a unitized segment of an industrial
wiring system where all of the following conditions are met

128
Q

ARTICLE 692

A

Fuel Cell Systems

129
Q

ARTICLE 694

A

Wind Electric Systems

130
Q

ARTICLE 695

A

Fire Pumps

131
Q

ARTICLE 700

A

Emergency Systems

132
Q

ARTICLE 701

A

Legally Required Standby Systems

133
Q

ARTICLE 702

A

Optional Standby Systems

134
Q

ARTICLE 705

A

Interconnected Electric Power Production
Sources

135
Q

ARTICLE 706

A

Energy Storage Systems

136
Q

ARTICLE 708

A

Critical Operations Power Systems

(COPS)

137
Q

ARTICLE 710

A

Stand-Alone Systems

138
Q

ARTICLE 712

A

Direct Current Microgrids

712.2 Definitions.
Direct Current Microgrid (DC Microgrid). A direct current
microgrid is a power distribution system consisting of more
than one interconnected dc power source, supplying dcdc converter(s), dc load(s), and/or ac load(s) powered by dcac inverter(s). A dc microgrid is typically not directly
connected to an ac primary source of electricity, but some dc
microgrids interconnect via one or more dc-ac bidirectional
converters or dc–ac inverters.

139
Q

ARTICLE 725

A

Class 1, Class 2, and Class 3 RemoteControl, Signaling, and Power-Limited
Circuits

Part I. General
725.1 Scope. This article covers remote-control, signaling,
and power-limited circuits that are not an integral part of a
device or of utilization equipment.
Informational Note: The circuits described herein are character‐
ized by usage and electrical power limitations that differentiate
them from electric light and power circuits; therefore, alterna‐
tive requirements to those of Chapters 1 through 4 are given
with regard to minimum wire sizes, ampacity adjustment and
correction factors, overcurrent protection, insulation require‐
ments, and wiring methods and materials

140
Q

ARTICLE 720

A

Circuits and Equipment Operating at Less
Than 50 Volts

720.1 Scope. This article covers installations operating at less
than 50 volts, direct current or alternating current.

141
Q

ARTICLE 727

A

Instrumentation Tray Cable: Type ITC

142
Q

ARTICLE 728

A

Fire-Resistive Cable Systems

143
Q

ARTICLE 750

A

Energy Management Systems

144
Q

ARTICLE 760

A

Fire Alarm Systems

145
Q

ARTICLE 770

A

Optical Fiber Cables

146
Q

ARTICLE 820

A

Community Antenna Television and Radio
Distribution Systems

147
Q

ARTICLE 830

A

Network-Powered Broadband
Communications Systems

148
Q

ARTICLE 840

A

Premises-Powered Broadband
Communications Systems

NEC 2017 (1 decks)

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