AMERICAN SOCIETY FOR TESTING AND MATERIALS et al v. PUBLIC.RESOURCE.ORG, INC.

Filing 164

REPLY in support of motion re #163 SEALED MOTION FOR LEAVE TO FILE DOCUMENT UNDER SEAL filed by PUBLIC.RESOURCE.ORG, INC. (This document is SEALED and only available to authorized persons.), #120 SEALED MOTION FOR LEAVE TO FILE DOCUMENT UNDER SEAL filed by PUBLIC.RESOURCE.ORG, INC. (This document is SEALED and only available to authorized persons.) filed by PUBLIC.RESOURCE.ORG, INC.. (Attachments: #1 [Redacted] Declaration of Matthew Becker, #2 [Redacted] Consolidated List of Exhibits, #3 [Redacted] Response to Supplemental Statement of Facts, #4 [Redacted] Response to Statement of Disputed Facts, #5 Supplemental Objections to Evidence, #6 Response to Evidentiary Objections, #7 Supplemental Request for Judicial Notice, #8 Supplemental Declaration of Carl Malamud, #9 Exhibit 1, #10 Exhibit 2, #11 Exhibit 3, #12 Exhibit 4, #13 Exhibit 5, #14 Exhibit 6, #15 Exhibit [Redacted] 7, #16 Exhibit 8, #17 Exhibit 9, #18 Exhibit [Redacted] 10, #19 Exhibit [Redacted] 11, #20 Exhibit 12, #21 Exhibit 13, #22 Exhibit 14, #23 Exhibit 15, #24 Exhibit 16, #25 Exhibit 17)(Bridges, Andrew) Modified text on 2/5/2016 (ztd).

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Copyright © 2007
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Diagrams clarify how NEe
reqUirements ensure safety.

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methods, protection, and more.

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Copyright © 2007, National Fire Protection Association®. All Rights Reserved

NFPA iO™

Natnonai Elec~Irical Code®
2008 lEdlntimll
This edition of NFPA 70, National Electrical Code, was prepared by the National Electrical Code
Committee and acted on by NFPA at its June Association Technical Meeting held June 3-7, 2007, in
Boston, MA. It was issued by the Standards Council on July 26, 2007, with an effective date of August
15, 2007, and supersedes all previous editions.
This edition of NFPA 70 was approved as an American National Standard on August 15,2007.

HftstoJry and! Devellopmel1l1 of the National Electrical Code

•

The National Fire Protection Association has acted as sponsor of the National Electrical Code since
1911. The original Code document was developed in 1897 as a result of the united efforts of various
insurance, electrical, architectural, and allied interests.
In accordance with the provisions of the NFPA Regulations Governing Committee Projects, a
National Electrical Code Committee Report on Proposals containing proposed amendments to the 2005
National Electrical Code was published by NFPA in July 2006. This report recorded the actions of the
various Code-Making Panels and the Correlating Committee of the National Electrical Code Committee
on each proposal that had been made to revise the 2005 Code. The report was circulated to all members
of the National Electrical Code Committee and was made available to other interested NFPA members
and to the public for review and comment. Following the close of the public comment period, the
Code-Making Panels met, acted on each comment, and reported their action to the Correlating Committee. NFPA published the National Electrical Code Committee Report on Comments in March 2007,
which recorded the actions of the Code-Making Panels and the Correlating Committee on each public
comment to the National Electrical Code Committee Report on Proposals. The National Electrical Code
Committ,ee Report on Proposals and the National Electrical Code Committee Report on Comments were
presented to the 2007 June Association Technical Meeting for adoption.
NFPA has an Electrical Section that provides particular opportunity for NFPA members interested in
electrical safety to become better informed and to contribute to the development of the National
Electrical Code and other NFPA electrical standards. At the Electrical Section Codes and Standards
Review Session held at the 2007 NFPA World Safety Conference and Exposition, Section members had
opportunity to discuss and review the report of the National Electrical Code Committee prior to the
adoption of this edition of the Code by the Association at its 2007 June Technical Session.
This 51st edition supersedes all other previous editions, supplements, and printings dated 1897,
1899, 1901, 1903, 1904, 1905, 1907, 1909, 1911, 1913, 1915, 1918, 1920, 1923, 1925, 1926, 1928,
1930, 1931, 1933, 1935, 1937, 1940, 1942, 1943, 1947, 1949, 1951, 1953, 1954, 1955, 1956, 1957,
1958,1959,1962,1965,1968,1971,1975,1978,1981, 1984, 1987, 1990, 1993, 1996, 1999,2002, and
2005.
This Code is purely advisory as far as NFPA is concerned. It is made available for a wide variety of
both public and private uses in the interest of life and property protection. These include both use in law
and for regulatory purposes, and use in private self-regulation and standardization activities such as
insurance underwriting, building and facilities construction and management, and product testing and
certification.

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remain.' ~J?h~~rl-d~~~.~~~]~~~,~i~t~o.naitYis!¥~~!Igf~ll~r~~VJith'~~~IlfH~"~ic¥~~~i.fi[e~~:~~t:me~ of every index
top"

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2008 Edition

NATIONAL ELECTRICAL CODE

7G-l

CONTENTS

Contents
ARTICLE

ARTICLE

90

III.
IV.
V.
VI.
VII.
VIII.
IX.

70- 21

Introduction

Chapter 1 General
100

I. General
II. Over 600 Volts, Nominal
110

70- 24

Definitions

Requirements for Electrical Installations
I.
II.
III.
IV.

General
600 Volts, Nominal, or Less
Over 600 Volts, Nominal
Tunnel Installations over 600 Volts,
Nominal
V. Manholes and Other Electrical
Enclosures Intended for Personnel
Entry, All Voltages

70- 24
70- 31

.
.

. 70- 32

250

. 70- 32
.. 70- 36
. 70- 38
. 70- 40
.. 70- 41

210

Use and Identification of Grounded
Conductors

.

Branch Circuits

. 70- 45

70- 43

215

Feeders

707070. 70-

220

Branch-Circuit, Feeder, and Service
Calculations

Grounding and Bonding
I. General .. . ... .. . . .. . . .. . . . .. . .. . .. . .. .. . . .. .. ...
II. System Grounding
III. Grounding Electrode System and
Grounding Electrode Conductor
IV. Enclosure, Raceway, and Service
Cable
.. ... .. .. . .. .. .. .. .. .. .. .. ...
v. Bonding . .. .. .. .. . . .. . . .. . . . .. . . .. .. .. .. . .. . . ...
VI. Equipment Grounding and Equipment
Grounding Conductors
VII. Methods of Equipment Grounding .. . .. .. ..
VIII. Direct-Current Systems
IX. Instruments, Meters, and Relays .. .. .. . .. ..
X. Grounding of Systems and Circuits of
1 kV and Over (High Voltage)

Chapter 2 Wiring and Protection
200

Enclosures .. .. ... .. .. . .. .. . .. .. . .. .. .. . . .. .. ....
Disconnecting and Guarding .. .. . .. .. . . .. ...
Plug Fuses, Fuseholders, and Adapters . ..
Cartridge Fuses and Fuseholders .. . .. . . . ...
Circuit Breakers
Supervised Industrial Installations
Overcurrent Protection over 600 Volts,
Nominal

. 70- 57

I. General Provisions
II. Branch-Circuit Ratings
III. Required Outlets

I.
II.
III.
IV.

General
Branch-Circuit Load Calculations
Feeder and Service Load Calculations
Optional Feeder and Service Load
Calculations
V. Farm Load Calculations

.
..
.

45
49
52
55

230

.
.

240

I. General
II. Location

70-2

I. General
II. Installation
III. Connecting

70-104
70-109
70-109
70-113
70-117
70-120
70-121
70-121
70-123

. 70-124
. 70-125
. 70-125

Chapter 3 Wiring Methods and Materials
300

. 70- 67

Overcurrent Protection

70- 94
70- 97

70-124

70- 62
70- 66

. 70- 67

I. General
II. Overhead Service-Drop Conductors
III. Underground Service-Lateral
Conductors
IV. Service-Entrance Conductors
V. Service Equipment - General
VI. Service Equipment - Disconnecting
Means
VII. Service Equipment - Overcurrent
Protection
VIII. Services Exceeding 600 Volts,
Nominal

.. . .. . .. .. .. .. .. ..

70- 93
70- 94

I. General
70-123
II. Installation .. . .. .. . . . .. . . . .. . .. . .. . .. .. . .. .. . ... 70-124
III. Connecting Surge Arresters .. . .. . .. .. .. . .... 70-124

. 70- 57
. 70- 58
. 70- 60

Outside Branch Circuits and Feeders

Services

Surge Arresters,

90
90
90
91
91
92

285

I. General
II. More Than One Building or Other
'"
Structure
III. Over 600 Volts

225

280

707070707070-

Wiring Methods ... ... . .. .. .. .. . .. . .. .. ... .. .. .
I. General Requirements ..... .. . .. .. .. .. .. ..
II. Requirements for over 600 Volts,
Nominal

70-126
70-126

. 70- 70
. 70- 72

310

Conductors for General Wiring

70-136
70-138

70- 73

312

Cabinets, Cutout Boxes, and Meter Socket
Enclosures

70-164

.

. 70- 73
. 70- 74
. 70- 75
. 70- 76
. 70- 78
.

I. Installation . .. .. . .. . .. . . . .. . .. . .. .. .. . .. .. .. . ... 70-164
II. Construction Specifications
70-165
314

70- 78

I.
II.
III.
IV.

. 70- 80
.

70- 81

.. 70- 83
. 70- 83
. 70- 86

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

320

Scope and General
Installation
Construction Specifications
Pull and Junction Boxes for Use on
Systems over 600 Volts, Nominal

Armored Cable: Type AC

70-167
70-167
70-168
70-174
70-175
70-175

I. General . .. ... . .. . .. .. . . .. . . .. . . .. . . . .. . .. . .. .... 70-175
II. Installation . . ... . . .. . .. .. . . . . .. . . .. . . .. . . .. .. ... 70-175

NATIONAL ELECTRICAL CODE

2008 Edition

•

CONTENTS

•

ARnClLlE

ARnClLlE

70-177
322 Flat Cable Assemblies: Type FC
70-177
I. General . .. . .. .. . .. . . .. . .. .. . . . .. .. . .. . .. .. ... ... 70-177
II. Installation .. . .. . .. . .. .. .. . .. . . .. . .. . .. . ... .. ... 70-177
III. Construction
70-178
324 Flat Conductor Cable: Type FCC
70-178
III. Construction Specifications

I. General
7G-178
II. Installation
70-178
III. Construction .. . .. .. ... .. .. . . .. . . .. .. . ... .. .. . .. 70-180

70-180
I. General .. . . . .. . .. .. . ... .. .. . .. . . .. .. . .. ... .. . ... 70-180
II. Installation . . . .. .. . ... .. .. . .. . .. . .. . .. .. ... .. . .. 70-180
III. Construction Specifications
70-181
328 Medium Voltage Cable: Type MV
70-181
326

348

350

70-182

I.' General
70-182
II. Installation . . .. . .. .. .. .. .. . . .. .. . . .. .. ... .. .. . .. 70-182
III. Construction Specifications
70-183
332

Mineral-Insulated, Metal-Sheathed Cable:
Type MI

352

334

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

353

336

Power and Control Tray Cable: Type TC
I. General
II. Installation
III. Construction Specifications

338

Underground Feeder and Branch-Circuit
Cable: Type UF
I. General . . .. . . .. . . .. .. . .. . .. . .. .. . .. .. ... .. . .. . ..
II. Installation .. . .. .. . .. .. . .. . . .. . .. . .. ... .. .. . .. ..
III. Construction Specifications

342

Intermediate Metal Conduit: Type IMC
I. General . . .. . .. . ... .. . .. . .. . . .. .. . . .. ... .. .. .. . ..
II. Installation .. . .. .. ... .. . . .. . . .. . .. .. .. ... . .. . ...
III. Construction Specifications

344

Rigid Metal Conduit: Type RMC

70-190
70-190
70-190
70-191
70-191
70-191
70-191
70-192
70-192

I. General . .. . . .. . . ... .. ... . .. . . .. . .. . .. .... .. . .. .. 70-192
II. Installation . . . .. .. .. .. .. .. .. . . .. . .. . .. .... .. . ... 70-193
III. Construction Specifications . .. . .. .. .. .. .. . .. 70-194

2008 Edition

NATIONAL ELECTRICAL CODE

High Density Polyethylene Conduit: Type
HDPE Conduit

Nonmetallic Underground Conduit with
Conductors: Type NUCC

355

R~infQrGeg.;'rh~(l'IlOsetting

~................

I. General
II. Installation
III. Construction Specifications
Liquidtight Flexible Nonmetallic Conduit:
Type LFNC
I. General
II. Installation
III. Construction Specifications
358

Electrical Metallic Tubing: Type EMT
I. General
II. Installation
III. Construction Specifications

360

Flexible Metallic Tubing: Type FMT
I. General
II. Installation
III. Construction Specifications

362

Electrical Nonmetallic Tubing: Type ENT
I. General
II. Installation
III. Construction Specifications

366

Auxiliary Gutters
I. General
II. Installation
III. Construction Specifications

368

Busways
I. General Requirements
II. Installation
III. Construction

70-201

Resil) Conduit:

1fYP~ Rl'RC ~

356

70-200
70-200
70-200
70-201

70-201
70-201
70-202

I. General
II. Installation
III. Construction Specifications

Service-Entrance Cable: Types SE and
USE

7l[j)-189
I. General
70-189
II. Installation . . .. . .. . . .. .. . .. .. . .. . ... .. ... .. . .. .. 70-189
III. Construction .. . . .. . . .. .. . .. . ... . .. .. ... .. . .. ... 70-190
340

354

70-188
70-188
713-188
70-188

Rigid Polyvinyl Chloride Conduit: Type
PVC

I. General
II. Installation
III. Construction Specifications

70-185

I. General . .. . . .. . .. .. .. .. .. .. . . .. .. . . ... .. ... .. . .. 70-185
II. Installation . . . .. .. .. .. .. .. . .. . .. . .. . ... .. .. . .. .. 70-185
III. Construction Specifications
70-187

70-196

70-197
I. General . . .. . .. . .. .. .. . .. .. .. .. . .. .. .. .. . ... . .. .. 70-197
II. Installation
70-197
III. Construction Specifications
70-200

70-184

I. General . .. . . .. .. . . .. ... . ... . . .. . .. .. . .. ... .. .. .. 70-184
II. Installation . . .. . .. . .. ... .. . .. . .. . .. . .. ... .. .. . .. 70-184
III. Construction Specifications
70-185

Liquidtight Flexible Metal Conduit: Type
LFMC

I. General . . .. .. . .. . .. .. .. .. .. .. ... . .. . .. . .. . .. . . .. 70-196
II. Installation . . . ... . .. . .. .. ... .. . ... . .. . . .. . .. . ... 70-196
III. Construction Specifications
70-197

Integrated Gas Spacer Cable: Type IGS

Metal-Clad Cable: Type MC

70-194

I. General . . .. .. . .. .. . .. . . .. .. . .. . .. .. . .. . .. .. . .. .. 70-194
II. Installation
70-195

I. General . . . .. . . .. . .. .. ... .. . .. . .. . .. . .. .. ... .. . .. 70-181
II. Installation . . .. . .. .. .. .. ... . . .. . .. . .. . ... .. .. ... 70-181
III. Construction Specifications
70-182
330

Flexible Metal Conduit: Type FMC

70-203
70-203
7lD-203
70-204
70-205
7lD-205
70-206
70-207
70-207
70-207
70-207
70-208
70-208
70-208
70-209
70-209
70-210
70-210
70-210
70-211
70-212
70-212
70-212
70-213
70-214
70-214
7lD-214
7lD-215

7G-3

CONTENTS

ARTICLE

ARTICLE

IV. Requirements for Over 600 Volts,
Nominal

.

370

Cablebus

.

372

Cellular Concrete Floor Raceways

.

374

Cellular Metal Floor Raceways

.

I. Installation
II. Construction Specifications

.
.

Metal Wireways

.

376

I. General
II. Installation
III. Construction Specifications

378

Nonmetallic Wireways
I. General
II. Installation
III. Construction Specifications

.
.
.
.
.
.
.

380

Multioutlet Assembly

.

382

Nonmetallic Extensions

.

I. General
II. Installation

.
.

386

Strut-Type Channel Raceway

.

I. General
II. Installation
III. Construction Specifications

384

.
.
.

Surface Metal Raceways
I. General
II. Installation
III. Construction Specifications

388

..
.
.
.

Surface Nonmetallic Raceways

.

I. General

.

II. Installation

III. Construction Specifications

.

.

390

Underfloor Raceways

.

392

Cable Trays

.

394

Concealed Knob-and-Tube Wiring

.

I. General
II. Installation
III. Construction Specifications

398

Messenger-Supported Wiring

.

I. General
II. Installation

396

.
.
.
.
.

Open Wiring on Insulators
I. General
II. Installation
III. Construction Specifications

..
.
.
.

70-216
70-216
70-217
70-218
70-219
70-219
70-219
70-219
70-219
70-220
70-221
70-221
70-221
70-222
70-222
70-222
70-222
70-223
70-224
70-224
70-224
70-224
70-225
70-226
70-226
70-226
70-226
70-227
70-227
70-227
70-227
70-228
70-229
70-235
70-235
70-236
70-236
70-237
70-237
70-237
70-237
70-237
70-238
70-239

Chapter 4 Equipment for General Use
400

Flexible Cords and Cables
I. General

70-4

70-240
70-240

II. Construction Specifications
III. Portable Cables Over 600 Volts,
Nominal
402

Fixture Wires

404

Switches

.

70-249

.

70-250
70-251
70-255
70-255
70-258

..
:

.

I. Installation
II. Construction Specifications
Receptacles, Cord Connectors, and
Attachment Plugs (Caps)

408

.

Switchboards and Panelboards

406

.
.

.

.
..

70-258
70-262
70-262
70-263
70-263
70-264
70-265
70-265
70-266
70-266
70-267
70-267
70-268

..
.
.
..
.
.
.
.

70-269
70-269
70-270
70-271
70-272
70-273
70-273
70-274

.

70-274

.

70-274

..

70-274

..
..

70-276
70-277

.

70-277

Lighting Systems Operating at 30 Volts or
Less

.

Appliances

.

.
.

70-278
70-278
70-278
70-279
70-281
70-282
70·-283
70-284
70-284
70-284

.
.

70-284
70-286

I.
II.
III.
IV.
409

General
Switchboards
Panelboards
Construction Specifications

Industrial Control Panels
I. General
II. Installation
III. Construction Specifications

410

Luminaires, Lampholders, and Lamps
I. General
II. Luminaire Locations
III. Provisions at Luminaire Outlet Boxes,
Canopies, and Pans
IV. Luminaire Supports
V. Grounding
VI. Wiring of Luminaires
VII. Construction of Luminaires
VIII. Installation of Lampholders
IX. Construction of Lampholders
X. Lamps and Auxiliary Equipment
XI. Special Provisions for Flush and
Recessed Luminaires
XII. Construction of Flush and Recessed
Luminaires
XIII. Special Provisions for
Electric-Discharge Lighting Systems of
1000 Volts or Less
XlV. Special Provisions for
Electric-Discharge Lighting Systems of
More Than 1000 Volts
xv. Lighting Track
XVI. Decorative Lighting and Similar
Accessories

411
422

I.
II.
III.
IV.
V.
424

General
Installation
Disconnecting Means
Construction
Marking

Fixed Electric Space-Heating Equipment
I. General
II. Installation
III. Control and Protection of Fixed
Electric Space-Heating Equipment
IV. Marking of Heating Equipment

NATIONAL ELECTRICAL CODE

.
.
.
.
.
.
.
.
.

.
.
.
.
.
.

2008 Edition

e

CONTENTS

•

ARTICLE

AlRnClLE

V.
VI.
VII.
VIII.
IX.
426

Fixed Outdoor Electric Deicing and
Snow-Melting Equipment
I.
II.
III.
IV.
V.
VI.

427

Electric Space-Heating Cables
Duct Heaters
Resistance-Type Boilers
Electrode-Type Boilers
Electric Radiant Heating Panels and
Heating Panel Sets

General
Installation
Resistance Heating Elements
Impedance Heating
Skin-Effect Heating
Control and Protection

Fixed Electric Heating Equipment for
Pipelines and Vessels
I.
II.
III.
IV.

General
Installation
Resistance Heating Elements
Impedance Heating
v. Induction Heating
VI. Skin-Effect Heating
VII. Control and Protection
430

Motors, Motor Circuits, and Controllers

I. General
II. Motor Circuit Conductors
III. Motor and Branch-Circuit Overload
Protection
IV. Motor Branch-Circuit Short-Circuit
and Ground-Fault Protection
v. Motor Feeder Short-Circuit and
Ground-Fault Protection
VI. Motor Control Circuits
VII. Motor Controllers
VIII. Motor Control Centers ..... .. ... .. .. ... .. .. ..
IX. Disconnecting Means
X. Adjustable-Speed Drive Systems
XI. Over 600 Volts, Nominal
XII. Protection of Live Parts - All
Voltages
XIII. Grounding - All Voltages
XlV. Tables
440

Air-Conditioning and Refrigerating
Equipment
I. General
II. Disconnecting Means
III. Branch-Circuit Short-Circuit and
Ground-Fault Protection
IV. Branch-Circuit Conductors
v. Controllers for Motor-Compressors
VI. Motor-Compressor and Branch-Circuit
Overload Protection
VII. Provisions for Room Air Conditioners

70-286
70-288
70-289
70-290

460

70-292

70-295

70-345
70-345
70-346
70-346
70-347

480

Storage Batteries .... ~ ... .... ... .. .. .. .. .. .. .. ..
Equipment, Over 600 Volts, Nominal
I. General
II. Equipment - Specific Provisions
Ill. Equipment - Metal-Enclosed Power
Switchgear and Industrial Control
Assemblies
IV. Mobile and Portable Equipment
V. Electrode-Type Boilers

70-347
70-347
70-350
70-352
70-352

ClJulljpJteJr' 5 §pedall O(CcUlp~llIrnde§

70-306

501

Hazardous (Classified) Locations, Classes
I, II, and III, Divisions 1 and 2
Class I Locations .. .. .... .. .. .. ... .. .. .. .. ... .
I. General
II. Wiring
III. Equipment

70-310
502

,

Class II Locations

503

70-354
70-362
70-362
70-363
70-368
7(1)-372
7([}-372
70-372
70-374
70-378

I. General
II. Wiring
III. Equipment
Class ITI Locations
I. General
II. Wiring
III. Equipment

70-322
70-323
70-324

70-378
70-378
70-379
70-380
70-384

504

Intrinsically Safe Systems

70-327

505

Class I, Zone 0, 1, and 2 Locations

70-327
70-329

506

Zone 20, 21, and 22 Locations for
Combustible Dusts ('Y{lgmtiDle

70-330
70--331
70-331

510
511

Commercial Garages, Repair and Storage

513

70-407
Motor Fuel Dispensing Facilities .............. 7G-410
Bulk Storage Plants
70--414

Generators

450

Transformers and Transformer Vaults
(Including Secondary Ties)

70-335

NATIONAL ELECTRICAL CODE

Resistors and Reactors

490

500

445

2008 Edition

70-344
70-344

I. 600 Volts, Nominal, and Under
II. Over 600 Volts, Nominal

470

70-298
70-304

70-332
70-333
70-334

I. General Provisions
II. Specific Provisions Applicable to
Different Types of Transformers

Capacitors. ......................................... 70-344
I. 600 Volts, Nominal, and Under
II. Over 600 Volts, Nominal

70-295
70-296
70-296
70-297
70--297
70-298
70-298
70-298

70-313
70-313
70-315
70-316
70-317
70-320
70-321

Phase Converters

I. General
70-342
II. Specific Provisions Applicable to
Different Types of Phase Converters ....... 70-343

70-290

70-292
70-293
70-293
70-294
70-294
70-295

70-341
70-342

III. Transformer Vaults
455

70-335
70-339

~~~~!s.~f!!?:g~

514
515
516
517

:~~.. ~.::-.. :.. :'

Hazardous (Classified) Locations Specific

70-398
70-404
70-404

Aircraft Hangars ..... .. .. ... ... ... .. ... .. ... ..

Spray Application, Dipping, and Coating
Processes
Health Care Facilities

70-419
70-425

I. General

70-425

7ij-5

CONTENTS

ARTICLE

ARTICLE

70-427
70-430
70-437
70-440

II.
III.
IV
V
VI.

Wiring and Protection
Essential Electrical System
Inhalation Anesthetizing Locations
X-Ray Installations
Communications, Signaling Systems,
Data Systems, Fire Alarm Systems,
and Systems Less Than 120 Volts,
Nominal
VII. Isolated Power Systems
518

70-443

Theaters, Audience Areas of Motion
Picture and Television Studios,
Performance Areas, and Similar Locations
I. General
II. Fixed Stage Switchboards
III. Fixed Stage Equipment Other Than
Switchboards
IV Portable Switchboards on Stage
V. Portable Stage Equipment Other Than
Switchboards
VI. Dressing Rooms
VII. Grounding

552

Park Trailers

I. General
II. Control Circuits
III. Control Circuit Wiring Methods
525

Carnivals, Circuses, Fairs, and Similar
Events
I.
II.
III.
IV

530

General Requirements
Power Sources
Wiring Methods
Grounding and Bonding

553

. 70-453
. 70-453
.. 70-454

Floating Buildings

I. General . .. .. .. .. . .. . .. . . . .. . . .. . ... .. .. .. .. .. . .. 70-497
II. Services and Feeders .. . .. .. .. .. .. .. .. . . .. .... 70-497
III. Grounding
, .. .. .. .. 70-497
555

..
.
.
.

Stage or Set
Dressing Rooms
Viewing, Cutting, and Patching Tables
Cellulose Nitrate Film Storage Vaults
Substations

Motion Picture Projection Rooms
I. General . .. .. .. .. .. .. .. .. . .. . . .. . .. . . .. . .. . .. .. ..
II. Equipment and Projectors of the
Professional Type
III. Nonprofessional Projectors
IV Audio Signal Processing,
Amplification, and Reproduction
Equipment

70-455
70-455
70-456
70-457

Chapter 6 Special Equipment

70-457
70-457
70-458
70-460
70-460
70-460
70-460
70-461

~~i1i~g

605

620

v.

VI.
VII.
VIII.

70-463

I. General .. .. .. .. .. .. .. .. .. . .. .. .. .. . .. . .. .. ..
II. Mobile and t-.1<ln:lfactured Homes
Ill. Services and Feeders

70-6

70-466
70-467
70-474

IX.
X.
625

General . .. .. .. . .. . . .. . .. . . . .. .. .. . ... . ... .. .. ...
Wiring
Contact Conductors .. . .. . .. . .. .. .. . .. .. .. .. . ..
Disconnecting Means
Overcurrent Protection
Control
Grounding

70-511
70-512
70-514
70-515
70-515
70-516
70-516

Elevators, Dumbwaiters, Escalators,
Moving Walks, Platform Lifts, and
Stairway Chairlifts .. . .. . . .. . . .. .. . ... . .. .. .. .. .. .. 70-517
I.
II.
III.
IV.

70-466

70-510
70-511

Cranes and Hoists
I.
II.
III.
IV.
V.
VI.
VII.

70-462

Mobile Homes, Manufactured Homes, and
Mobile Home Parks

70-508
70-509

Office Furnishings (Consisting of Lighting
Accessories and Wired Partitions)

70-462

Agricultural Buildings

70-504

Manufactured Wiring Systems

70-461
70-462

547

70--504

604

70-461

Manufactured Buildings

Electric Signs and Outline Lighting
I. General
II. Field-Installed Skeleton Tubing f:iPd

600

610

545

550

70-498
70-501

Marinas and Boatyards
Temporary Installations

. 70-455

I. General

540

70-490
70-496
70-497

. 70-453

Motion Picture and Television Studios
and Similar Locations
II.
III.
IV
V
VI.

70-488
70-488
70-489

General
Low-Voltage Systems
Combination Electrical Systems
Nominal 120-Volt or 1201240-Volt
Systems
V. Factory Tests

590
:AnitLs~jnl~nlA,tttaCtioiis

70-478
70-485
70-485
70-488

I.
II.
III.
IV.

. 70-444
.. 70-446

. 70-451
. 70-452
. 70-453

70-475
70-475
70-477
70-477

General
Combination Electrical Systems
Other Power Sources . . . .. . .. .. .. .. .. .. .. ..
Nominal 120-Volt or 1201240-Volt
Systems
V Factory Tests
VI. Recreational Vehicle Parks

70-444

. 70-447
. 70-448

Recreational Vehicles and Recreational
Vehicle Parks
I.
II.
III.
IV

70-441
70-442

Assembly Occupancies

520

551

General .. . .. .. .. . . . .. . .. . .. . .. .. ... . .. .. .. .. . ...
Conductors . . .. . .. . . .. . .. . . ... . ... . .. .. .. .. . .. ..
Wiring
Installation of Conductors
Traveling Cables
Disconnecting Means and Control
Overcurrent Protection
Machine Rooms, Control Rooms,
Machinery Spaces, and Control Spaces....
Grounding
Emergency and Standby Power
Systems

70-517
70--519
70-520
70-523
70--523
70-524
70-526
70-526
70--527

Electric Vehicle Charging System

70-527
70-527

I. General

70-527

NATIONAL ELECTRICAL CODE

2008 Edition

CONTENTS

ARTICLE

ARTICLE

II.
III.
IV.
V.
626

Wiring Methods
Equipment Construction
Control and Protection
Electric Vehicle Supply Equipment
Locations

Eleqtr~n~&f_;'ff~~~'})fu'1ti~g-;~pa~e~

. 70-528
. 70-528
. 7{)-529

630

Electric Welders
I.
II.
III.
IV.

640

General
Arc Welders
Resistance Welders
Welding Cable

Audio Signal Processing, Amplification,
and Reproduction Equipment
I. General
II. Permanent Audio System Installations
III. Portable and Temporary Audio System
Installations

70-531

I. General
II. Orderly Shutdown
690

70-536
70-536
70-537
70-538

692

. 70-538
. 70-542
. 70-542
. 70-544

647

Sensitive Electronic Equipment

. 70-546

650

Pipe Organs

660

X-Ray Equipment
I.
II.
III.
IV.

General
Control
Transformers and Capacitors
Guarding and Grounding

695

. 70-547

Ch21JPlter 7 Spedall COll1idlntions

.
.
.
.

70-548
70-549
70-549
70-549

I. General
II. Guarding, Grounding, and Labeling
Electrolytic Cells

. 70-551

669

Electroplating
Industrial Machinery

. 70-555

675

Electrically Driven or Controlled
Irrigation Machines

General
Circuit Wiring
Sources of Power
Emergency System Circuits for
Lighting and Power
70-600
V. Control - Emergency Lighting
Circuits
70-600
VI. Overcurrent Protection . . . .. . .. .. . . .. . .. . .. ... 70-600

. 70-554

670

70-556
70-556
70-558

1. General
II. Center Pivot Irrigation Machines

Swimming Pools, Fountains, and Similar
Installations
I.
II.
III.
IV.
V.
VI.
VII.

682

General
Permanently Installed Pools
Storable Pools
Spas and Hot Tubs
Fountains
Pools and Tubs for Therapeutic Use
Hydromassage Bathtubs

70-558
70-561
70-568
70-568
70-570
70-572
70-572

Natural and Artincially Made Bodies of
Water

10-573

1. General

10-573

2008 Edition

NATIONAL ELECTRICAL CODE

701

Legally Required Standby Systems
I.
II.
III.
IV.

702

705

General . .. .. .. . .. . .. . .. . . .. . .. . . .. .. . .. . .. .. . ...
Circuit Wiring .. .. .. . .. .. .. .. .. .. . .. . .. . .. ..
Sources of Power
Overcurrent Protection . .. . . .. . .. . . .. .. .. . ....

Optional Standby Systems
I.
II.
III.
IV.

. 70-558
.
.
.
..
.
.
.

70-596
70-596
70-597
70-598

Emergency Systems
I.
II.
III.
IV.

. 70-550
. 70-551

668

700

. 70-550

680

70-588
70-589
70-589
70-590
70-590
70-590
70-590
70-591
70-591

General
Circuit Requirements
Disconnecting Means
Wiring Methods
Grounding
Marking
Connection to Other Circuits
Outputs Over 600 Volts

Fire Pumps

.. 70-548

Induction and Dielectric Heating
Equipment

665

General
Circuit Requirements
Disconnecting Means
Wiring Methods
Grounding
Marking
Connection to Other Sources
Storage Batteries
Systems over 600 Volts

Fuel Cell Systems
I.
II.
III.
IV.
V.
VI.
VII.
VIII.

. 70-538

Information Technology Equipment

Solar Photovoltaic Systems
I.
II.
III.
IV.
V.
VI.
VII.
VIII.
IX.

70-532

70-533
70-535
. 70-536

.
.
.
.

70-574
70-575
70-575
70-575
70-575
70-575
70-578
70-580
70-581
70-583
70-585
70-585
70-587
70-588
70-588

Integrated Electrical Systems

. 70-531

645

e

685

. 70-529

I. General
.
II. Electrined Truck Parking Spaces
Electrical Wiring Systems
.
III. Electrified Truck Parking Space Supply
Equipment
.
IV. Transport Refrigerated Units (TRUs)
..

7~-573

II. Installation
III. Grounding and Bonding

'

General .. .. .. .. . .. .. . .. .. . .. .. .. .. . .. .. .. .. ..
Circuit Wiring ... .. .. . .. . . .. .. . .. . . .. .. .. . .
Grounding .. . .. . . .. . .. . . .. .. . . .. . .. . .. .. .. . .. ...
Sources of Power . .. . . .. . .. . .. . .. .. . . .. .. .. ...

Interconnected Electric Power Production
Sources

70-601
70-601
70-602
70-602
70-603
70-604
70-604
70-605
70-605
70-605
70-605

I. General . . . ... . .. . . .. . .. . . .. . .. . .. .. . .. .. .. .. .... 70-605
II. Utility-Interactive Inverters
70-608
III. Generators
70-609
~nt~9~ Qpe,t(}.t~()n~ Epwer Syst~ms

~~q~)~r:-::

.-:. :~...~ .-~-:~-.. ~::-:-.. :~ ..:.................

70-609

I. General .. . .. . .. .. . . .. .. .. . .. . .. . .. .. . .. . .. .. .... 70-609
II. Circuit Wiring and Equipment
70-610

70-7

CONTENTS

ARTICLE

ARTICLE

III. Power Sources and Connection . .. . .. . .. ... 70-612
IV. Overcurrent Protection ... . .. .. .. .. .. .. .. .
70-613
V. System Performance and Analysis
70-614
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
I.
II.
III.
IV.

General .. .. . .. . .. . .. . . . .. . . .. . .. . . .. .. . .. .. .. ...
Class 1 Circuits . .. . .. .. .. .. .. .. .. .. .. .. .. ..
Class 2 and Class 3 Circuits .. .. . .. .. .. ..
Listing Requirements ...... .. .. .. . .. .. . .. ..

727

Instrumentation Tray Cable: Type ITC

760

Fire Alarm Systems
I. General .. . .. . .. . .. . . . .. . . .. . . .. .. . .. . .. .. . .. . ...
II. Non-Power-Limited Fire Alarm
(NPLFA) Circuits
III. Power-Limited Fire Alarm (PLFA)
Circuits
IV. Listing Requirements
.. .. .. .. . .. .. .. .. ..

70-614

70-626

Optical Fiber Cables and Raceways

70-634
70-635
70-635
70-636
70-638

Communications Circuits . . . . . .. .. . .. .. .. .. . .. ... 70-640
I. General ... . .. .. . .. .. . .. . . . .. . . .. . .. .. .. .. .. . ....
II. Wires and Cables Outside and
Entering Buildings
III. Protection
IV. Grounding Methods .. .. .. ... .. .. .. .. .. .. ..
v. ~Il§laIla!~~I}!!M~tQ'[<1§, Within Buildings
VI. Li~tin£"R~q~i;~*;nent~ .. . . . .. . .. . .. .. .. .. .. . ...

810

Radio and Television Equipment
I. General . .. .. . .. .. . .. .. . . .. . .. .. . .. . .. . ... .. .....
II. Receiving Equipment - Antenna
Systems
III. Amateur Transmitting and Receiving
Stations - Antenna Systems
IV. Interior Installation - Transmitting
Stations

820

Community Antenna Television and Radio
Distribution Systems
I. General
II. ~Q~0~{;l;l Cables Outside and Entering
BuildIngs

70-8

70-640
70-641
70-642
70-644
70-645
70-647
70-649
70-649
70-650
70-652
70-653

70-660
70-662
70-664
70-666
70-667
70-669

General .. . .. .. . . . .. . .. . . .. . . .. . . .. .. .. . .. .. .. ...
Cables Outside and Entering Buildings ...
Protection . .. . .. . . .. . . . .. . .. . . .. .. . .. . .. .. .. . ...
Grounding Methods
~M~~l1~~i~ri1 Methods Within Buildings
LIstIng-Requirements .. . . . .. . ... .. . .. .. .. .. ...

Chapter 9 Tables
Percent of Cross Section of Conduit and
Tubing for Conductors ... .. .. .. .. . .. .. .. .. .. ..
2

Radius of Conduit and Tubing Bends

70-671
70-671

4

Dimensions and Percent Area of Conduit
and Tubing
(Areas of Conduit or Tubing for the
Combinations of Wires Permitted in Table
1, Chapter 9)

70-672

5

Dimensions of Insulated Conductors and
Fixture Wires

70-676

5A

Compact~9Pp~f~:~n9:

Aluminum Building
Wire Nominal Dimensions and Areas

8

Conductor Properties .. .. . .. ... .. .. .. .. .. .. .. .

70-680
70-681

9

Alternating-Current Resistance and
Reactance for 600-Volt Cables, 3-Phase,
60 Hz, 75°C (l67°F) - Three Single
Conductors in Conduit

70-682

Class 2 and Class 3 Alternating-Current
Power Source Limitations

70-684

II(B)

Class 2 and Class 3 Direct-Current Power
Source Limitations

70-684

12(A)

PLFA Alternating-Current Power Source
Limitations

70-685

12(B)

PLFA Direct-Current Power Source
Limitations

Chapter 8 Communications Systems
800

70-660

TABLES

70-628
70-631
70-633
70-633

Network-Powered Broadband
Communications Systems
I.
II.
III.
IV.
V.
VI.

70-625

I. General

770

830

70-614
70-614
70-615
70-617
70-622
70-624
70-625

70-655
70-656
70-657
70-659

III. Protection
IV. Grounding Methods .. . .. . .. . .. .. .. .. .. .. .
v. ~fi~!al~~H~jilij~~lfi~ds Within Buildings
VI. lIstIng Reci~trerrients

Il(A)

. 70-685

Annex A
Annex B
Annex C
Annex D

.

Annex E
Annex F

70-653

Annex G

.

Annex H

.

Index

70-653

.

70-686
70-689
70-703
70-763
70-773
70-774
70-776
70--778
70-785

70-654

NATIONAL ELECTRICAL CODE

2008 Edition

NATIONAL ELECTRICAL CODE COMMITTEE

NATiONAIL JEILlEC1rRlICAIL CODE COMMlI1r1rlElE
These lists represent the membership at the time the Committee was balloted on the final text of this edition. Since
that time, changes in the membership may have occurred. A key to classifications is found at the back of this
document.

James W. Carpenter, Chair
International Association of Electrical Inspectors, TX [E]
Mark W. lEarley, Secretary
National Fire Protection Association, MA
(nonvoting)

~

•

Jean A. O'Cmmor, Recording Secretary
National Fire Protection Association, MA
(nonvoting)
James IE. Brmlllsselll., Telcordia Technologies, Inc., NJ rUT]
Rep. Alliance for Telecommunications Industry Solutions
Merton W. Bunker, Jr., U.S. Department of State, VA [U]
(VL to Document: 110, Document: 111, Document: 70,
Document: 70B, Document: 70E, Document: 79)
WilBiam R. Drake, Marinco, CA [M]
!Palmer JL. Hickman, National Joint Apprentice & Training
Committee, MD [L]
. Rep. International Brotherhood of Electrical Workers
John R. Kovacik, Underwriters Laboratories Inc., IL [RT]
William M. lLewis, Martinsville, IN [U]
Rep. American Chemistry Council
Jim Pauley, Square D Company/Schneider Electric, KY [M]
Rep. National Electrical Manufacturers Association
Michael D. Toman, MEGA Power Electrical Services, Inc.,
MD [1M]
Rep. National Electrical Contractors Association
John W. TrogDia, Edison Electric Institute, WI rUT]
Rep. Electric Light & Power Group/EEI
Robert G. 'Wilkinson, IEC Texas Gulf Coast, TX [1M]
Rep. Independent Electrical Contractors, Inc.

Alternates
Jeffrey Boksiner, Telcordia Technologies, Inc., NJ rUT]
(All. to 1. E. Brunssen)

James M. Daly, General Cable, NJ [M]
(All. to J. Pauley)
Stanley J. IFolz, Morse Electric Company, NV [1M]
(All. to M. D. Toman)
David. JL. Bittinger, IEC of Greater Cincinnati, OH [1M]
(All. to R. G. Wilkinson)
Neil IF. lLaBrake, Jr., National Grid, NY [UT]
(All. to J. W. Troglia)
Danny)LiggeU, Dupont Company, TX [U]
(All. to W. M. Lewis)
Mark Co Ode, Underwriters Laboratories Inc., NC [RT]
(All. to J. R. Kovacik)
Ridnardl !P. Owen, City of Sl. Paul, MN [E]
(All. to 1. W. Carpenter)

Nonvotilllg
David MascarelllD'nas, Canadian Standards Association,
Canada [RT]
lRidnard G. Biermannn, Biermann Electric Company, Inc.,
IA [1M]
(Member Emeritus)
D. Harold Ware, Libra Electric Company, OK [1M]
(Member Emeritus)

Committee Scope: This Committee shall have primary responsibility for documents on minimizing the risk of
electricity as a source of electric shock and as a potential ignition source of fires and explosions. It shall also be
responsible for text to minimize the propagation of fire and explosions due to electrical installations.

CODlE-MAOCJING PANEIL NO. :ll
AIrQfides 9tm 9 :H)09 :ll:lltm9 All1I.ll1I.ex A 9 AJrnll1lex G
John D. Minick, Chair
National Electrical Manufacturers Association, TX [M]
Michael A. Anthony, University of Michigan, MI [U]
Rep. Association of Higher Education Facilities Officers
lLouis A. Barrios, Shell Global Solutions, TX [U]
Rep. American Chemistry Council
Kenneth P. Boyce, Underwriters Laboratories Inc., IL [RT]
Wmiam T. !Fiske, Intertek Testing Services NA, Inc., NY [RT]
H. lLandis Faoyd, The DuPont Company, DE [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
!Palmer JL. Hickman, National Joint Apprentice & Training
Committee, MD [L]
Rep. International Brotherhood of Electrical Workers

2008 Edition

NATIONAL ELECTRICAL CODE

David. IL. JH[fittinger, IEC of Greater Cincinnati, OH [1M]
Rep. Independent Electrical Contractors, Inc.
Neil F. lLaBrake, Jr., National Grid, NY rUT]
Rep. Electric Light & Power Group/EEI
JRandaID R. McCarver, Telcordia Technologies, Inc., NJ [U]
Rep. Alliance for Telecommunications Industry Solutions
lLanny G. McMahm, City of Phoenix, AZ [E]
Rep. International Association of Electrical Inspectors
!HI. Brooke Stauffer, National Electrical Contractors
Association, MD [1M]

7G-9

NATIONAL ELECTRICAL CODE COMMITTEE

Alternates
Mark Christian, IBEW Local Union 175, TN [L]
(Alt. to P. L. Hickman)
Benjamin F. Dunford, Ben Dunford Electric Company Inc.,
TN [1M]
(Alt. to D. L. Hittinger)
Ernest J. Gallo, Telcordia Technologies, Inc., NJ [U]
(Alt. to R. R. McCarver)
Russell J. Helmick, Jr., Orange, CA [E]
(Alt. to L. G. McMahill)
Donald H. McCullough, II, Washington Savannah River
Company, SC [U]
(Alt. to H. L. Floyd)

Gil Moniz, National Electrical Manufacturers Association,
MA[M]
(Alt. to J. D. Minick)
Alfredo M Ramirez, Underwriters Laboratories Inc., IL [RT]
(Alt. to K. P. Boyce)
John W. Troglia, Edison Electric Institute, WI [UT]
(Alt. to N. F. LaBrake, Jr.)

Nonvoting
Ark Tsisserev, City of Vancouver, Canada
Rep. CSA/Canadian Electrical Code Committee

CODE-MAKING PANEL NO.2
Articles 210, 215, 220, Annex D, Chapter 9 Examples 1 through 6
Raymond W. Weber, Chair
State of Wisconsin, WI [E]
Rep. International Association of Electrical Inspectors
Richard W. Becker, Engineered Electrical Systems, Inc.,
WA[U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Lawrence Brown, National Association of Home Builders,
DC [U]
Frank Coluccio, New York City Department of Buildings,
NY[E]
Thomas L. Harman, University of Houston-Clear Lake, TX
[SE]
Donald M. King, IBEW Local Union 313, DE [L]
Rep. International Brotherhood of Electrical Workers
Robert L. LaRocca, Underwriters Laboratories Inc., NY [RT]
Brian J. Nenninger, The Dow Chemical Company, TX [U]
Rep. American Chemistry Council
Jim Pauley, Square D Company/Schneider Electric, KY [M]
Rep. National Electrical Manufacturers Association
Ronald L. Purvis, Sharpsburg, GA [UT]
Rep. Electric Light & Power GrouplEEI
Michael D. Toman, MEGA Power Electrical Services, Inc.,
MD [1M]
Rep. National Electrical Contractors Association
Robert G. Wilkinson, IEC Texas Gulf Coast, TX [1M]
Rep. Independent Electrical Contractors, Inc.

Alternates
James E. Degnan, Sparling, WA [U]
(AIt. to R. W. Becker)
David A. Dini, Underwriters Laboratories Inc., IL [RT]
(Alt. to R. L. LaRocca)
Daniel J. Kissane, Pass & Seymour/Legrand, NY [M]
(Alt. to J. Pauley)
William Ross McCorcle, American Electric Power, OK [UT]
(Alt. to R. L. Purvis)
William J. McGovern, City of Plano, TX [E]
(Alt. to R. W. Weber)
Clifford JL Rediger, Independent Electrical Contractors
Training Fund, CO [1M]
(Alt. to R. G. Wilkinson)
Janet D. Skipper, IBEW Local Union 606, FL [L]
(AIt. to D. M. King)
Joseph E. Wiehagen, National Association of Home
Builders, MD [U]
(Alt. to L. Brown)

Nonvoting
William Burr, Canadian Standards Association, Canada [RT]
Douglas A. Lee, U.S. Consumer Product Safety
Commission, MD [C]
Andrew M. Trotta, U.S. Consumer Product Safety
Commission, MD [C]

CODE-MAKING PANEL NO.3
Articles 300, 590, 720, 725, 727, 760, Chapter 9, Tables 11(A) and (8), and Tables I2(A) and (B)
Richard P. Owen, Chair
City of St. Paul, MN [E]
Rep. International Association of Electrical Inspectors
Lawrence S. Ayer, Biz Com Electric, Inc., OH [1M]
Rep. Independent Electrical Contractors, Inc.
Paul J. Casparro, Scranton Electricians JATC, PA [L]
Rep. International Brotherhood of Electrical Workers
Les Easter, Allied Tube and Conduit, IL [M]
Rep. National Electrical Manufacturers Association
Sanford E. Egesdal, Egesdal Associates PLC, MN [M]
Rep. Automatic Fire Alarm Association, Inc.
Thomas J. Guida, Underwriters Laboratories Inc., NY [RT]
Ray R. R. Keden, ERICO, Inc., CA [M]
Rep. Building Industry Consulting Services International

70-10

Ronald E. Maassen, Lemberg Electric Company, Inc.,
WI [1M]
Rep. National Electrical Contractors Association
Juan C. Menendez, Southern California Edison Company,
CA[UT]
Rep. Electric Light & Power GrouplEEI
Steven J. Owen, Steven J. Owen, Inc., AL [1M]
Rep. Associated Builders & Contractors, Inc.
David A. Pace, Olin Corporation, AL [U]
Rep. American Chemistry Council

NATIONAL ELECTRICAL CODE

2008 Edition

NATIONAL ELECTRICAL CODE COMMITTEE

Melvin JK. Sanders, Things Electrical Co., Inc.
(TECo., Inc.), IA [V]
Rep. Institute of Electrical & Electronics Engineers, Inc.
John E. Sleights, St. Paul Travelers, CT [I]

Alternates
Slhall1le M. Clary, Bay Alarm Company, CA [M]
(All. to S. E. Egesdal)
Adam D. Corbill1l, Corbin Electrical Services, Inc., NJ [1M]
(All. to L. S. Ayer)
Danny Liggett, Dupont Company, TX [V]
(All. to D. A. Pace)
T. David MilBs, Bechtel Savannah River, Inc., SC [U]
(All. to M. K. Sanders)
Mark C. Ode, Underwriters Laboratories Inc., NC [RT]
(All. to T. 1. Guida)

lRoger S. Passmore, Davis Electrical Constructors, Inc., SC
[1M]
(All. to S. J. Owen)
Marty JL. Riesberg, IBEW Local Vnion 22, MD [L]
(All. to P. J. Casparro)
George A. Strall1lnero, Tyco/AFC Cable Systems, Inc., NJ

[M]
(Alt. to L. Easter)
lRobert J. Walsh, City of Hayward, CA [E]
(Alt. to R. P. Owen)

Nonvotilllg
Edward Co lLawry, Oregon, WI [E]
(Member Emeritus)

CODE-MAKING PANEL NO. 41
Al"tkh~§ 225 9 230
James M. NaugMon, Chair
IBEW Local Union 103, MA [L]
Rep. International Brotherhood of Electrical Workers
Thomas JL. Adams, Exelon Corporation, IL [VT]
Rep. Electric Light & Power GrouplEEI
Malcolm ADiison, Ferraz Shawmut, MA [M]
Robert J. Deaton, The Dow Chemical Company, TX [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Howard D. Hughes, Hughes Electric Company Inc., AR [1M]
Rep. National Electrical Contractors Association
Marik C. Ode, Underwriters Laboratories Inc., NC [RT]
James J. Rogers, Towns of Oak Bluffs, Tisbury, West
Tisbury, MA [E]
Rep. International Association of Electrical Inspectors
John A. Sigmund!, PPG Industries, Inc., LA [U]
Rep. American Chemistry Council
John W. Young, Siemens Energy & Automation, Inc., GA [M]
Rep. National Electrical Manufacturers Association
Vincent Zinnante, Advantage Electric, Inc., TX [1M]
Rep. Independent Electrical Contractors, Inc.

Altennates
PauD D. Barnhart, Underwriters Laboratories Inc., NC [RT]
(All. to M. C. Ode)
Marik D. Gibbs, BWXT Y-12, LLC, TN [U]
(All. to R. J. Deaton)
lKelfmeth W. Hengst, EAS Contracting, LP, TX [1M]
(All. to V. Zinnante)
Marik lR. IfIiBbert, State of New Hampshire, NH [E]
(All. to J. J. Rogers)
PhiliJll M. Piqueira, General Electric Company, CT [M]
(All. to 1. W. Young)
Marik 1HI. SumraRB, IBEW Local Union 527, TX [L]
(All. to J. M. Naughton)
Peter JR. WaDsh, Ferraz Shawmut, MA [M]
(All. to M. Allison)

CODlE~MAlKJ[NG PANEIL

AIrafide§ 2009 2509 2~09

•

NO.5
285

lRonald! J. Toomer, Chair
Toomer Electrical Company Inc., LA [1M]
Rep. National Electrical Contractors Association
Jeffrey Boksiner, Telcordia Technologies, Inc., NJ [VT]
Rep. Alliance for Telecommunications Industry Solutions
David Brender, Copper Development Association, Inc., NY
[M]
,
Rep. Copper Development Association Inc.
Martin J. Brett, Jr., Wheatland Tube Company, NJ [M]
Rep. American Iron and Steel Institute
Paul Dobrowsky, Innovative Technology Services, NY [U]
Rep. American Chemistry Council
JI)all1l Hammel, IBEW Local Vnion 704, IA [L]
Rep. International Brotherhood of Electrical Workers
G. ScoU Harding, F. B. Harding, Inc., MD [1M]
Rep. Independent Electrical Contractors, Inc.
William J. Helfrich, V.S. Department of Labor, PA [E]
Michael J. Johnston, International Association of Electrical
Inspectors, TX [E]
Clullclk Mello, Underwriters Laboratories Inc., WA [RT]

2008 Edition

NATIONAL ELECTRICAL CODE

DaDeelP Co MohBa, DCM Electrical Consulting Services, Inc.,
TX [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Gregory J. Steinmall1l, Thomas & Betts Corporation, TN [M]
Rep. National Electrical Manufacturers Association
lRobert G. StoDI, Thomas Associates, Inc., OH [M]
. Rep. Power Tool Institute, Inc
Richard TembDador, Southwire Company, GA [M]
Rep. The Aluminum Association
C. Douglas White, CenterPoint Energy, Inc., TX [VT]
Rep. Electric Light & Power GrouplEEI

Alternates
Harold G. Alexander, American Electric Power, OH [VT]
(All. to C. D. White)
IRon D. Alley, Northern New Mexico IEC, NM [1M]
(All. to G. S. Harding)

70-11

NATIONAL ELECTRICAL CODE COMMITIEE

Joseph P. DeGregoria, Underwriters Laboratories Inc., NY
[RT]
(All. to C. Mello)
Ronald Lai, FCI Electrical, NH [M]
(All. to G. J. Steinman)
Paul J. LeVasseur, Bay City JEATC, MI [L]
(Alt. to D. Hammel)
Richard E. Loyd, R & N Associates, AZ [M]
(All. to M. J. Brett, Jr.)
Michael E. McNeil, FMC Corporation/Bio Polymer, ME [U]
(Alt. to P. Dobrowsky)
Nathan Philips, Integrated Electronic Systems, OR [1M]
(All. to R. J. Toomer)

Paul R. Picard, Tyco/AFC Cable Systems, Inc., MA [M]
(All. to R. Temblador)
Elliot Rappaport, Electro Technology Consultants, Inc., FL
[U]
(All. to D. C. Mohla)
Phil Simmons, Simmons Electrical Services, WA [M]
(Alt. to D. Brender)
David A. WiRliams, Delta Charter Township, MI [E]
(All. to M. 1. Johnston)

Nonvoting
Robert A. Nelson, Canadian Standards Association, Canada
[RT]

CODE-MAKING PANEL NO.6
Articles 310, 400, 402, Chapter 9 Tables 5 through 9, Annex B
Scott Cline, Chair
McMurtrey Electric, Inc., CA [1M]
Rep. National Electrical Contractors Association
Samuel B. Friedman, General Cable Corporation, RI [M]
Rep. National Electrical Manufacturers Association
Robert L. Huddleston, Jr., Eastman Chemical Company,
TN [U]
Rep. American Chemistry Council
G. W. "Jerry" Kent, Kent Electric & Plumbing Systems,
TX [1M]
Rep. Independent Electrical Contractors, Inc.
William F. Laidler, South Shore VoTech/lBEW 223, MA [L]
Rep. International Brotherhood of Electrical Workers
L. Bruce McClung, Electrical Safety Consulting Services,
Inc., WV [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Paul R. Picard, Tyco/AFC Cable Systems, Inc., MA [M]
Rep. The Aluminum Association
Oran P. Post, Akron, OH [E]
Rep. International Association of Electrical Inspectors
Carl Timothy Wall, Alabama Power Company, AL rUT]
Rep. Electric Light & Power GrouplEEI
Austin D. Wetherell, Underwriters Laboratories Inc., NY
[RT]
Joseph S. Zimnoch, The Okonite Company, NJ [M]
Rep. Copper Development Association Inc.

Alternates
Jacob Bennilllger, IBEW Local Union 241 JATC, NY [L]
(All. to W. F. Laidler)
Peter E. Bowers, Satellite Electric Company, Inc., MD [1M]
(All. to G. W. Kent)
James M. Daly, General Cable, NJ [M]
(All. to J. S. Zimnoch)
Timothy Edwards, Akan Cable Company, GA [M]
(All. to P. R. Picard)
Richard A. Holub, E. I. DuPont de Nemours & Company,
Inc., DE [U]
(All. to R. L. Huddleston, Jr.)
Lowell Lisker, American Insulated Wire Corporation, MA
[M]
(All. to S. B. Friedman)
Harry J. Sassaman, Forest Electric Corporation, NJ [1M]
(All. to S. Cline)
Bradley J. Schmidt, Underwriters Laboratories Inc., IL [RT]
(Alt. to A. D. Wetherell)
John Stacey, City of St. Louis, MO [E]
(All. to O. P. Post)
Donald A. Voltz, Mustang Engineering, Inc., TX [U]
(Alt. to L. B. McClung)

CODE-MAKING PANEL NO.7
Articles 320, 322, 324, 326, 328, 330, 332, 334, 336, 338, 340, 382, 394, 396, 398
Gaylen D. Rogers, Chair
Highland, UT [E]
Rep. International Association of Electrical Inspectors
Martin D. Adams, Adams Electric, Inc., CO [1M]
Rep. National Electrical Contractors Association
Harry C. Brown, IBEW Local Union 606, FL [L]
Rep. International Brotherhood of Electrical Workers
John J. Cangemi, Underwriters Laboratories Inc., NY [RT]
James M. Daly, General Cable, NJ [M]
Rep. National Electrical Manufacturers Association
Timothy Edwards, AIean Cable Company, GA [M]
Rep. The Aluminum Association
Chris J. Fahrenthold, Design Electric, TX [1M]
Rep. Independent Electrical Contractors, Inc.
Herman J. Hall, Austin, TX [M]
Rep. Society of the Plastics Industry, Inc.

70-12

Ronald G. Nickson, National Multi Housing Council, DC
[U]
John W. "Wes" Ray, Duke Energy Corporation, NC rUT]
Rep. Electric Light & Power GrouplEEI
Gregory L. Runyon, Eli Lilly and Company, IN [U]
Rep. American Chemistry Council
David E. Schumacher, Associated Builders & Contractors,
Inc., IA [1M]
H. R. Stewart, HRS Consulting, TX [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
George A. Straniero, Tyco/AFC Cable Systems, Inc., NJ
[M]
Rep. Copper Development Association Inc.

NATIONAL ELECTRICAL CODE

2008 Edition

NATIONAL ELECTRICAL CODE COMMITTEE

AUernates
Wnmam B. Crist, Houston Stafford Electric Company, TX
[1M]
(All. to C. J. Fahrenthold)
James Do Erwirn, Celanese, Ltd., TX [U]
(All. to G. L. Runyon)
Rogers !HIester, Jr., Encore Wire Limited, TX [M]
(All. to G. A. Straniero)
James lK. Hinrichs, State of Washington, WA [E)
(Alt. to G. D Rogers)
Jacob K.Umnger, Underwriters Laboratories Inc., IL [RT]
(All. to J. J. Cangemi)

Samuel R. lLaDart, City of Memphis, TN [L]
(All. to H. C. Brown)
David Mercier, Southwire Company, GA [M]
(All. to J. M. Daly)
Dennis A. Nielsen, Lawrence Berkeley National Laboratory,
CA[U]
(All. to H. R. Stewart)
Peter Pollak, The Aluminum Association, Inc., VA [M]
(All. to T. Edwards)
Thomas H. Wood, Cecil B. Wood Inc., IL [1M]
(All. to M. D. Adams)

(()ODEaMAKHNG PANEL NO.8
AJr~ides 342,

344, 348, 350, 352, 353, 354, 356, 358, 360, 362, 366, 368, 370, 372, 374, 37fJ, 378, 380, 384,
386, 388, 390, 392, Chapter 9, TabBes 1 through 4, Arrmex C
Julian R. Banrns, Chair
Burns Electrical/Quality Power Solutions, Inc., NC [1M]
Rep. Independent Electrical Contractors, Inc.

Joseph Dabe, City of St. Paul, MN [L]
Rep. International Brotherhood of Electrical Workers
George R. Dat.llberger, Thomas & Betts Corporation, TN [M]
Rep. National Electrical Manufacturers Association
James Co Dollins, Tyco/AFC Cable Systems, MA [M]
Rep. The Aluminum Association
James T. Dwight, Sasol North America, Inc., LA [U]
Rep. American Chemistry Council
M. Shallll Griffith, Kellogg, Brown & Root, Inc., TX [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
David G. Humphrey, County of Henrico, Virginia, VA [E)
Rep. International Association of Electrical Inspectors
David H. Kendalll, Carlon, Lamson & Sessions, OH [M]
Rep. Society of the Plastics Industry, Inc.
Richard IE. lLoyd, R & N Associates, AZ [M]
Rep. American Iron and Steel Institute
Stephen P. Poholski, Newkirk Electric Associates, Inc., MI
[1M]
Rep. National Electrical Contractors Association
George F. Walbrecht, Underwriters Laboratories Inc., IL [RT]
!LesUne R. Zielke, South Carolina Electric & Gas Company,
SC [UT]
Rep. Electric Light & Power Group/EEI

Alternates
IRichardt J. Berman, Underwriters Laboratories Inc., IL [RT]
(All. to G. F. Walbrecht)
Joyce IEvans Blom, The Dow Chemical Company, CA [U]
(All. to J. T. Dwight)
Duane A. Carlson, PRS Consulting Engineers, WA [U]
(All. to M. S. Griffith)
Charles W. Forsberg, Shaker Heights, OH [M]
(Alt. to D. H. Kendall)
James M. limlah, City of Hillsboro, OR [E)
(All. to D. G. Humphrey)
JKevin J. Uppert, Eaton Corporation, PA [M]
(All. to G. R. Dauberger)
Gregory IL. Maurer, Wheatland Tube Company, AR [M]
(Alt. to R. E. Loyd)
Gary W. Pemble, Montana Electrical JATC, MT [L]
(All. to J. Dabe)
Co IErnest Reynolldts, Hatfield-Reynolds Electric Company,
AZ [1M]
(All. to J. R. Burns)
IRidnard Tembllador, Southwire Company, GA [M]
(All. to J. C. Dollins)

CODJEaMAKING PANElL NO.9
3]12, 314, 404, 408, 450, 490

AJr~nde§

Robert A. McCullough, Chair
Ocean County Construction Inspection Department, NJ [E)
Rep. International Association of Electrical Inspectors
Rodrney D. BeiisBe, NECA-IBEW Electrical Training Trust,
OR [L]
Rep. International Brotherhood of Electrical Workers
BiBBy Breitkreutz, Fluor Corporation, TX [U]
Rep. Associated Builders & Contractors, Inc.
Richard! P. Fogarty, Consolidated Edison Company of New
York, Inc., NY [UT]
Rep. Electric Light & Power Group/EEl
Frederic P. Hartwelll, Hartwell Electrical Services, Inc., MA
[SE]
Thomas J. !LeMay, LeMay Electric, Inc., GA [1M]
Rep. Independent Electrical Contractors, Inc.
Robert D. Osborne, Underwriters Laboratories Inc., NC [RT]

2008 Edition

NATIONAL ELECTRICAL CODE

Bradford D. lRupp, Allied Moulded Products, Inc., OH [M]
Rep. National Electrical Manufacturers Association
Sukanta Sengupta, FMC Corporation, NJ [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Monte Szendre, Wilson Construction Company, OR [1M]
Rep. National Electrical Contractors Association
R.alph H. Young, Eastman Chemical Company, TN lUJ
Rep. American Chemistry Council

Alternates
Charles lL. Boynton, The DuPont Company, TX [U]
(All. to R. H. Young)

70-13

NATIONAL ELECTRICAL CODE COMMITTEE

Kevin J. Breen, Breen Electrical Contractors Inc., NY [1M]
(All. to T. J. LeMay)
James C. Carroll, Square D Company/Schneider Electric,
TN[M]
(All. to B. D. Rupp)
Kenneth L. McKinllley, Jr., Underwriters Laboratories Inc.,
NC [RT]
(All. to R. D. Osborne)
James C. Missildine, Jr., Southern Company Services, Inc.,
AL[UT]
(All. to R. P. Fogarty)

Paul W. Myers, Innovene LLC, OH [U]
(All. to S. Sengupta)
Donald R. Offerdahl, North Dakota State Electrical Board,
ND [E]
(All. to R. A. McCullough)
Rhett A. Roe, IBEW Local Union 26 JATC, MD [L]
(All. to R. D. Belisle)

CODE-MAKING PANEL NO. 10
Articles 240, 780
James T. Dollard, Jr., Chair
IBEW Local Union 98, PA [L]
Rep. International Brotherhood of Electrical Workers
Charles K. Blizard, American Electrical Testing Company,
Inc., MA [1M]
Rep. InterNational Electrical Testing Association
Madeline Borthick, IEC of Houston, Inc., TX [1M]
Rep. Independent Electrical Contractors, Inc.
Dennis M. Darling, Ayres, Lewis, Norris & May, Inc., MI [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Charles Eldridge, Indianapolis Power & Light Company, IN
[UT]
Rep. Electric Light & Power Group/EEI
Carl Fredericks, The Dow Chemical Company, TX [U]
Rep. American Chemistry Council
C. W. Kimblin, Eaton Electrical Corporation, PA [M]
Rep. National Electrical Manufacturers Association
John R. Kovacik, Underwriters Laboratories Inc., IL [RT]
Robert W. Mount, Jr., Hussmann Corporation, MO [M]
Rep. Air-Conditioning and Refrigeration Institute
George J. Ockuly, O'Fallon, MO [M]
Richard Sobel, Quantum Electric Corporation, NY [1M]
Rep. National Electrical Contractors Association
Gerald W. Williams, County of Ventura, California, CA [E]
Rep. International Association of Electrical Inspectors

Alternates
Robert R. Gage, National Grid, NY [UT]
(All. to C. Eldridge)
Roderic Hageman, PRIT Service, Inc., IL [1M]
(All. to C. K Blizard)
Robert J. Kauer, Middle Department Inspection Agency,
Inc., PA [E]
(All. to G. W. Williams)
Frank G. Ladonne, Underwriters Laboratories Inc., IL [RT]
(All. to 1. R. Kovacik)
Richard E. Lofton, II, IBEW Local Union 280, OR [L]
(Alt. to J. T. Dollard, Jr.)
Alan Manche, Square 0 Company/Schneider Electric, KY
[M]
(Alt. to C. W. Kimblin)
Vincent J. Saporita, Cooper Bussmann, MO [M]
(All. to G. J. Ockuly)
Steve A. Struble, Freeman's Electric Service, Inc., SO [1M]
(Alt. to M. Borthick)
Steven E. Townsend, General Motors Corporation, MI [U]
(All. to D. M. Darling)

CODE-MAKING PANEL NO. 11
Articles 409, 430, 440, 460, 470, Annex D, Example D8
Wayne Brinkmeyer, Chair
Britain Electric Company, TX [1M]
Rep. National Electrical Contractors Association
Rick L. Bunch, Tecumseh Products Company, MI [M]
Rep. Air-Conditioning and Refrigeration Institute
J. Ron Caccamese, Alterman Electric Co., Ltd., TX [L]
Rep. International Brotherhood of Electrical Workers
Terry D. Cole, Hamer Electric, Inc., WA [1M]
.
Rep. Independent Electrical Contractors, Inc.
Robert G. Fahey, City of Janesville, WI [E]
Rep. International Association of Electrical Inspectors
William D. Glover, PPG Industries, Inc., WV [U]
Rep. American Chemistry Council
Charles A. Goetz, Underwriters Laboratories Inc., IL [RT]
Paul E. Guidry, Fluor Enterprises, Inc., TX [U]
Rep. Associated Builders & Contractors, Inc.
Leo H. Haas, Jr., CenterPoint Energy, Inc., TX [UT]
Rep. Electric Light & Power Group/EEI

70-14

Paul S. Hamer, Chevron Energy Technology Company, CA
[U]
Rep. American Petroleum Institute
Vincent J. Saporita, Cooper Bussmann, MO [M]
Lynn F. Saunders, Brighton, MI [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Lawrence E. Todd, Intertek Testing Services NA, Inc., OR
[RT]
Ron Widup, Shermco Industries, Inc., TX [1M]
Rep. InterNational Electrical Testing Association
James R. Wright, Siemens Energy & Automation, Inc., IL
[M]
Rep. National Electrical Manufacturers Association

NATIONAL ELECTRICAL CODE

2008 Edition

•

NATIONAL ELECTRICAL CODE COMMITTEE

Alternates
lLarry W. lBums, Bums Electric, Inc., TX [1M]
(Alt. to T. D. Cole)
Ranph M. Esemplare, Consolidated Edison Company of
New York, NY [UT]
(Alt. to L. H. Haas, Jr.)
James M. Fahey, IBEW Local Union 103, MA [L]
(AIt. to J. R. Caccamese)
Stanley J. ]i'onz, Morse Electric Company, NV [1M]
(Alt. to W. Brinkmeyer)
Barry G. Kames, Underwriters Laboratories Inc., CA [RT]
(Alt. to C. A. Goetz)
Robert J. Keough, Emerson Motor Company, MO [M]
(Alt. to 1. R. Wright)

Thomas IE. Moore, City of North Royalton, OH [E]
(Alt. to R. G. Fahey)
Arthur S. Neubauer, Colonial Pipeline Company, GA [U]
(Alt. to P. S. Hamer)
George J. Ockuly, O'Fallon, MO [M]
(AIt. to V. J. Saporita)
Charles IL. PoweIn, Eastman Chemical Company, TN [U]
(Alt. to W. D. Glover)
ArthUllr J. Smith, nil, Waldemar S. Nelson & Company,
Inc., LA [U]
(AIt. to L. F. Saunders)
RussenB A. Tiffany, Johnson Controls, Inc., PA [M]
(Alt. to R. L. Bunch)

CO[}JEaMAKliNG PANEL NO. 12

All"tnclles 610, 620, 625, 630, 6~O, 645, 6~7, 650, 660, 665, 668, 669, 670, 685,
ArrnrrneJ>i: JI), EJ>i:3tmplles JI))il} 3tmll D10
Timothy M. Croushore, Chair
Allegheny Power, PA [UT]
Rep. Electric Light & Power GrouplEEI
Kent lB. Givens, Alcoa, Inc., TX [M]
Rep. The Aluminum Association
(VL to 610, 625, 630, 645, 660, 665, 668, 669, 685)
Thomas IL. Hedges, Hedges Electric & Construction Inc.,
CA[IM]
Rep. National Electrical Contractors Association
Ron IL. Janikowski, City of Wausau, Wisconsin, WI [E]
Rep. International Association of Electrical Inspectors
Robert lEo Johnsorn, ITE Safety, MA [U]
Rep. Information Technology Industry Council
(VL to 640, 645, 647, 685)
Robert A. JOIl1leS, Independent Electrical Contractors, Inc.,
TX [1M]
Andy Juhasz, Kone, Inc., IL [M]
Rep. National Elevator Industry Inc.
(VL to 610, 620, 630)
Todd lLoUmarm, Cooper Bussmann, MO [M]
Rep. National Electrical Manufacturers Association
Sam Marcovici, New York City Department of Buildings,
NY[E]
John H. Mortimer, Inductotherm Corporation, NJ [M]
(VL to 610, 630, 665, 668, 669)
Ralph C. Prichard, Hercules Incorporated, DE [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
David IR. Quave, IBEW Local Union 903, MS [L]
Rep. International Brotherhood of Electrical Workers
Craig Sato, Underwriters Laboratories Inc., CA [RT]
Arthur lEo Schlueter, Jr., A. E. Schlueter Pipe Organ
Company, GA [M]
Rep. American Institute of Organ Builders
(VL to 640, 650)
Kenneth White, Olin Corporation, NY [U]
Rep. American Chemistry Council

2008 Edition

NATIONAL ELECTRICAL CODE

Alternates
Wmiam lEo Anderson, The Procter & Gamble Company, OH
[U]
(Alt. to R. C. Prichard)
Jeffrey W. Blain, Schindler Elevator Corporation, NY [M]
(VL to 610, 620, 630)
(Alt. to A. Juhasz)
Thomas M. Bunke, Underwriters Laboratories Inc., CA [RT]
(Alt. to C. Sato)
Jeffrey IL. Honmes, IBEW Local Union 1 JATC, MO [L]
(Alt. to D. R. Quave)
'Fim McClintock, Wayne County, Ohio, OH [E]
(Alt. to R. L. Janikowski)
Roger D. MclDanieH, Georgia Power Company, GA [UT]
(Alt. to T. M. Croushore)
Peter Polnak, The Aluminum Association, Inc., VA [M]
(VL to 610, 625, 630, 645, 660, 665, 668, 669, 685)
(Alt. to K. B. Givens)
lLori IL. Tennant, Square D Company/Schneider Electric, NC
[M]
(Alt. to T. Loumann)
George S. Tidden, George's Electrical Service Inc" TX [1M]
(Alt. to R. A. Jones)
ChaJrles M. 'froud, Maron Electric Company, FL [1M]
(AIt. to T. L. Hedges)
Robert C. Thriller, Oxford, MD [M]
(VL to 610, 630, 665, 668, 669)
(Alt. to J. H. Mortimer)

Nonvoting
Andre R Cartan, Yardley, PA [E]
(Member Emeritus)

70-15

NATIONAL ELECTRICAL CODE COMMITTEE

CODE-MAKING PANEL NO. 13
Articles 445, 455, 480, 690, 692, 695, 700, 701, 702, 705
Thomas H. Wood, Chair
Cecil B. Wood Inc., IL [IM]
Rep. National Electrical Contractors Association
Tarry L. Baker, Broward County Board of Rules &
Appeals, FL [E]
Rep. International Association of Electrical Inspectors
Ward I. Bower, Sandia National Laboratories, NM [U]
Rep. Solar Energy Industries Association
(VL to 690, 692, 705)
Douglas L. L. Elkins, ExxonMobil Chemical Company, TX
[U]
Rep. American Chemistry Council
George W. Flach, George W. Flach Consultant, Inc., LA
[SE]
Ernest J. Gallo, Telcordia Technologies, Inc., NJ [U]
Rep. Alliance for Telecommunications Industry Solutions
(VL to 445, 480, 690, 692)
Robert J. Gustafson, Ohio State University, OH [U]
Rep. American Society of Agricultural & Biological
Engineers
Banks Hattaway, Hattaway Brothers, Inc., AL [1M]
Rep. Associated Builders & Contractors, Inc.
Barry N. Hornberger, PECO Energy Company, PA rUT]
Rep. Electric Light & Power GrouplEEI
Kenneth Krastins, Plug Power, Inc., NY [M]
Rep. U.S. Fuel Cell Council
(VL to 690, 692, 705)
James S. Nasby, Master Control Systems, Inc., IL [M]
Rep. National Electrical Manufacturers Association
Steven H. Pasternack, Intertek Testing Services NA, Inc.,
NY [RT]
Elliot Rappaport, Electro Technology Consultants, Inc., FL
[U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Duke W. Schamel, Electrical Service Solutions, Inc., CO
[1M]
Rep. Independent Electrical Contractors, Inc.
Todd W. Stafford, National Joint Apprentice & Training
Committee, TN [L]
Rep. International Brotherhood of Electrical Workers

Herbert V. Whittall, Electrical Generating Systems
Association, FL [M]
Timothy P. Zgonena, Underwriters Laboratories Inc., IL
[RT]

Alternates
Paul D. Barnhart, Underwriters Laboratories Inc., NC [RT]
(All. to T. P. Zgonena)
Daniel Batta, Jr., Constellation Power Source Generation,
Inc., MD rUT]
(All. to B. N. Hornberger)
Ron B. Chilton, North Carolina Department of Insurance,
NC [E]
(All. to T. L. Baker)
Larry D. Cogburn, Cogburn Bros, Inc., FL [1M]
(All. to T. H. Wood)
Brian L. Crise, NIETC, OR [L]
(All. to T. W. Stafford)
Steven J. Fredette, UTC Fuel Cells, LLC, CT [M]
(VL to 690, 692, 705)
(All. to K. Krastins)
John P. Goodsell, Hubbell Incorporated, CT [M]
(All. to J. S. Nasby)
Timothy D. Holleman, AC Corporation, NC [1M]
(All. to D. W. Schamel)
R.obert Swayne, P2S Engineering, Inc., CA [U]
(All. to E. Rappaport)
Dale A. Triffo, Shell Oil Products U.S., TX [U]
(All. to D. L. L. Elkins)
R.obert H. Wills, Intergrid, LLC, NH [U]
(VL to 690, 692, 705)
(All. to W. I. Bower)

Nonvoting
David Mascarenhas, Canadian Standards Association,
Canada [RT]

CODE-MAKING PANEL NO. 14
Articles 500, 501, 502, 503, 504, 505, 506, 510, 511, 513, 514, 515, 516
Donald Cook, Chair
Shelby County Development Services, AL [E]
Rep. International Association of Electrical Inspectors
Troy Beall, B & D Industries, Inc., NM [1M]
Rep. National Electrical Contractors Association
Marc J. Bernsen, IBEW Local Union 291, ID [L]
Rep. International Brotherhood of Electrical Workers
Edward M. Briesch, Underwriters Laboratories Inc., IL [RT]
James D. Cospolich, Waldemar S. Nelson & Company Inc.,
LA[U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Mark Goodman, Jacobs Engineering Group, CA [U]
Rep. American Petroleum Institute
Gregory D. Hall, Better-Way Electric, Inc., CO [1M]
Rep. Independent Electrical Contractors, Inc.
Joseph H. Kuczka, Killark Electric Manufacturing
Company, MO [M]
Rep. National Electrical Manufacturers Association

70-16

WiBliam G. Lawrence, Jr., FM Global, MA [I]

L. Evans Massey, Rockwell Automation, SC .[M]
Rep. Instrumentation, Systems, & Automation Society
Jeremy Neagle, Intertek ETL SEMKO, NY [RT]
Mike O'Meara, Arizona Public Service Company, AZ rUT]
Rep. Electric Light & Power GrouplEEI
David B. Wechsler, The Dow Chemical Company, TX [U]
Rep. American Chemistry Council
Mark C. Wirfs, R & W Engineering, Inc., OR [U]
Rep. Grain Elevator and Processing Society

Alternates
Donald W. Ankele, Underwriters Laboratories Inc., IL [RT]
(All. to E. M. Briesch)

NATIONAL ELECTRICAL CODE

2008 Edition

NATIONAL ELECTRICAL CODE COMMITTEE

A. W. Ballard, Crouse-Hinds, NY [M]
(Alt. to J. H. Kuczka)
Mark W. Bonk, Cargill Incorporated, MN [U]
(All. to M. C Wirfs)
Dave Burns, Shell Exploration & Production Company, LA
[U]
(All. to M. Goodman)
!Larry !E. lFuhrman, City of Titusville, FL [E)
(All. to D. Cook)
Richard A. Holub, E. I. DuPont de Nemours & Company,
Inc., DE [U]
(All. to D. B. Wechsler)
Nicholas P. !Ludlam, FM Global, United Kingdom [I]
(All. to W. G. Lawrence, Jr.)
Christophel" P. O'Neil, NSTAR Electric & Gas Corporation,
MA[UT]
(All. to M. O'Meara)

Ted H. Schnaare, Rosemount Incorporated, MN [M]
(All. to L. E. Massey)
.]fohn IL. Simmons, Florida East Coast JATC, FL [L]
(All. to M. J. Bernsen)
Donald W. Zipse, Zipse Electrical Engineering Inc., PA [U]
(All. to 1. D. Cospolich)

NOR'nvoting
Timothy .]f. Pope, Canadian Standards Association, Canada
[RT]
!Eduardo N. Solalf1lo, Estudio Ingeniero Solano S.A.,
Argentina [SE]
lFred K. Walker, U.S. Department of the Air Force, FL [U]
Rep. TC on Airport Facilities

(()()DlEaMAKJING PANEL NO. 15
Artknes 517 9 5Jl8 9 52~9 525 9 5309 5410
Donald .]f. Talka, Chair
Underwriters Laboratories Inc., NY [RT]
James JR. Duncan, Sparling Electrical Engineering &
Technology Consulting, WA [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Ronald !E. Duren, PacifiCorp, WA [UT]
Rep. Electric Light & Power GrouplEEI
Douglas S. Erickson, American Society for Healthcare
Engineering, VI [U]
MitcheBl K. Hefter, Entertainment Technology/Genlyte, TX

[1M]

•

Rep. Illuminating Engineering Society of North America
(VL to 518, 520, 525, 530, 540)
Kim .]fones, Funtastic Shows, OR [U]
Rep. Outdoor Amusement Business Association, Inc.
(VL to 525)
!Edwin S. Kramer, Radio City Music Hall, NY [L]
Rep. International Alliance of Theatrical Stage Employees
(VL to 518, 520, 525, 530, 540)
!Larry !Lao, U.S. Department of Veterans Affairs, DC [U]
(VL to 517,518)
Dennis W. Marshall, TAG Electric Companies, TX [1M]
Rep. Independent Electrical Contractors, Inc.
!Eugene !E. Morgan, County of Clackamas, Oregon, OR [E)
Rep. International Association of Electrical Inspectors
Hugh O. Naslh, .]fr., Nash Lipsey Burch, LLC, TN [SE]
Rep. TC on Electrical Systems
Bmce D. Shelly, Shelly Electric Company, Inc., PA [1M]
Rep. National Electrical Contractors Association
Michael D. Skinner, CBS Studio Center, CA [U]
Rep. Alliance of Motion Picture and Television Producers
(VL to 518, 520, 525, 530, 540)

2008 Edition

NATIONAL ELECTRICAL CODE

Kenneth IE. Vannice, Leviton Manufacturing Company Inc.,
OR[M]
Rep. U.S. Institute for Theatre Technology
(VL to 518, 520, 525, 530, 540)
Michael Velvikis, High Voltage Maintenance Corporation,
WI [1M]
Rep. InterNational Electrical Testing Association
Andrew White, IBEW Local Union 3, NY [L]
Rep. International Brotherhood of Electrical Workers
.]fames IL. WisemaIl1l, Square D Company/Schneider Electric,
TN[M]
Rep. National Electrical Manufacturers Association

Alternates
.]fames IL. Brown, Detroit Edison, DTE Energy, MI [UT]
(Alt. to R. E. Duren)
Matthew B. Dozier, IDesign Services, TN [U]
(All. to 1. R. Duncan)
Samuel B. Friedman, General Cable Corporation, RI [M]
(All. to J. L. Wiseman)
Stephen M. ILipster, The Electrical Trades Center, OH [L]
(All. to A. White)
.]foseph P. Murnane, .]fr., Underwriters Laboratories Inc., NY
[RT]
(Alt. to D. J. Talka)
Marcus JR. Sampson, Minnesota Department of Labor &
Industry, MN [E)
(All. to E. E. Morgan)
.]fames C. Seabury, HI, Enterprise Electric, LLC, TN [1M]
(All. to D. W. Marshall)
Steven R. 'ferry, Electronic Theatre Controls Inc., NY [M]
(VL to 518,520,525,530,540)
(All. to K. E. Vannice)

70-17

NATIONAL ELECTRICAL CODE COMMITTEE

CODE-MAKING PANEL NO. 16
Articles 770, 800, 810, 820, 830
S. D. Kahn, Chair
Tri-City Electric Company, Inc., CA [1M]
Rep. National Electrical Contractors Association
J. Robert Boyer, GE Infrastructure, Security, NJ [M]
Rep. National Electrical Manufacturers Association
James E. Brunssen, Telcordia, NJ [U]
Rep. Alliance for Telecommunications Industry Solutions
Larry Chan, City of New Orleans, LA [E]
Rep. International Association of Electrical Inspectors
Gerald Lee Dorna, Belden Wire & Cable, IN [M]
Rep. Insulated Cable Engineers Association Inc.
Roland W. Gubisch, Intertek Testing Services NA, Inc., MA
[RT]
Robert L. Hughes, The DuPont Company, GA [U]
Rep. American Chemistry Council
Robert W. Jensen, dbi-Telecommunication Infrastructure
Design, TX [M]
Rep. Building Industry Consulting Services International
Steven C. Johnson, Time Warner Cable, NC [UT]
Rep. National Cable & Telecommunications Association
Ronald G. Jones, Ronald G. Jones, P.E., TX [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Harold C. Ohde, IBEW-NECA Technical Institute, IL [L]
Rep. International Brotherhood of Electrical Workers
Luigi G. Prezioso, M. C. Dean, Inc., VA [1M]
Rep. Independent Electrical Contractors, Inc.
James W. Romlein, MV Labs LLC, WI [M]
Rep. Telecommunications Industry Association
Susan L. Stene, Underwriters Laboratories Inc., CA [RT]

Kyle E. Todd, Entergy Corporation, TX [UT]
Rep. Electric Light & Power Group/EEI

Alternates
Terry C. Coleman, National Joint Apprentice & Training
Committee, TN [L]
(Alt. to H. C. Ohde)
Timothy D. Cooke, Times Fiber Communications, Inc., VA
[UT]
(Alt. to S. C. Johnson)
Bill Hopple, Tyco/SimplexGrinnell, CA [M]
(AlL to J. R. Boyer)
Randolph J. hans, Underwriters Laboratories Inc., NY [RT]
(AlL to S. L. Stene)
StanKey Kaufman, CableSafe, Inc.lOFS, GA [M]
(AlL to G. L. Dorna)
William J. McCoy, Verizon Wireless, TX [U]
(AlL to R. G. Jones)
Robert P. McGann, City of Cambridge, MA [E]
(AlL to L. Chan)
W. Douglas Pirkle, Pirkle Electric Company, Inc., GA [1M]
(AlL to S. D. Kahn)
David B. Schrembeck, DBS Communications, Inc., OH
[1M]
(AlL to L. G. Prezioso)

•

CODE-MAKING PANEL NO. 17
Articles 422, 424, 426, 427, 680, 682
Don W. Jhonson, Chair
Interior Electric, Inc., FL [1M]
Rep. National Electrical Contractors Association
Thomas V. Blewitt, Underwriters Laboratories Inc., NY [RT]
Richard J. Cripps, Association of Home Appliance
Manufacturers, VA [M]
(VL to 422, 424)
Paul Crivell, Camp, Dresser & McKee Inc., WA [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Larry M. Eils, National Automatic Merchandising
Association, IL [M]
(VL to 422)
Christopher S. Gill, New York Board of Fire Underwriters,
NY[E]
Bruce R. Hirsch, Baltimore Gas & Electric Company, MD
[UT]
Rep. Electric Light & Power Group/EEI
Robert M. Milatovich, Clark County Building Department,
NV [E]
Rep. International Association of Electrical Inspectors
Jurgen Pannock, Whirlpool Corporation, TN [M]
Rep. Air-Conditioning and Refrigeration Institute
(VL to 422,424)
Marcos Ramirez, Hatfield-Reynolds Electric company, AZ
[1M]
Rep. Independent Electrical Contractors, Inc.
Brian E. Rock, Hubbell Incorporated, CT [M]
Rep. National Electrical Manufacturers Association

70-18

Kenneth M. Shell, Tyco Thermal Controls, CA [M]
Rep. Copper Development Association Inc.
(VL to 426, 427)
Ronald Sweigart, E.!. duPont de Nemours & Company, Inc.,
DE [U]
Rep. American Chemistry Council
(VL to 422, 424, 426, 427, 682)
Lee L. West, Balboa Instruments, Inc., CA [M]
Rep. National Spa and Pool Institute
(VL to 680)
Randy J. Yasenchak, IBEW Local Union 607, PA [L]
Rep. International Brotherhood of Electrical Workers

Alternates
Dennis L. Baker, Springs & Sons Electrical Contractors
Inc., AZ [1M]
(AlL to M. Ramirez)
Aaron B. Chase, Leviton Manufacturing Company, Inc., NY
[M]
(Alt. to B. E. Rock)
James E. Maldonado, City of Tempe, AZ [E]
(Alt. to R. M. Milatovich)
Wayne E. Morris, Association of Home Appliance
Manufacturers, DC [M]
(VL to 422, 424)
(Alt. to R. J. Cripps)
Brian Myers, IBEW Local Union 98, PA [L]
(AlL to R. J. Yasenchak)

NATIONAL ELECTRICAL CODE

2008 Edition

•

NATIONAL ELECTRICAL CODE COMMITTEE

RonaRrl IF. SdlalPP, Intertek Testing Services NA, Inc., OH
[RT]
(Voting Alt. to Intertek Rep.)
Gary IL. Siggins, Underwriters Laboratories Inc., CA [RT]
(Alt. to T. V. Blewitt)
Joel G. Solis, Air-Conditioning & Refrigeration Institute, VA
[M]
(VL to 422, 424)
(Alt. to J. Pannock)

Robert JE. Wisenburg, Coates Heater Company, Inc., WA
[M]
(VL to 680)
(Alt. to Lee L. West)

Nonvoting
Andrew M. 'Irotta, U.S. Consumer Product Safety
Commission, MD [C]
Douglas A. Lee, U.S. Consumer Product Safety
Commission, MD [C]

CODEgMAKING PANEL NO. 18
AIrtkRes 406 9 410 9 4U 9 600 9 605
Michael N. Ber, Chair
IEC, Houston, TX [IM]
Rep. Independent Electrical Contractors, Inc.
ChaJrles IL. Boynton, The DuPont Company, TX [U]
Rep. American Chemistry Council
lFre«llerick L. Carpenter, Lithonia Lighting, GA [M]
Rep. National Electrical Manufacturers Association
Paul Costello, NECA and IBEW Local 90 JATC, CT [L]
Rep. International Brotherhood of Electrical Workers
Kenneth F. Kempel, Underwriters Laboratories Inc., NC
[RT]
Stephen G. Kieffer, Kieffer & Company, Inc., WI [M]
Rep. International Sign Association
(VL to 600)
Steven A. Larson, BWXT Y-12, LLC, TN [U]
Rep. Institute of Electrical & Electronics Engineers, Inc.
Michael S. O'Boyle, Lightolier Division of Genlyte Group,
MA[M]
Rep. American Lighting Association
(VL to 410, 411)
Timothy S. Owens, City of Santa Clara, CA [E]
Rep. International Association of Electrical Inspectors
Jim IF. Pierce, Intertek Testing Services NA, Inc., OR [RT]
Michael W. Smith, Schaeffer Electric Company, MO [1M]
Rep. National Electrical Contractors Association
Sondra K. l'odrl, Westar Energy, Inc., KS rUT]
Rep. Electric Light & Power GrouplEEI
Jack Wells, Pass & SeymourlLegrand, NC [M]

Randall K. WJrigM, RKW Consulting, PA [SE]

Alternates
Steve Campolo, Leviton Manufacturing Company, Inc., NY
[M]
(Alt. to F. L. Carpenter)
Robert T. Carlock, R. T. Carlock Company, TN [1M]
(Alt. to M. N. Ber)
Melvyn J. Kochan, Young Electric Sign Company, NV [M]
(VL to 600)
(Alt. to S. G. Kieffer)
Charles S. Kurten, Underwriters Laboratories Inc., NY [RT]
(Alt. to K. F. Kempel)
Amos D. !Lowrance, Jr., City of Chattanooga, Tennessee,
TN [E]
(Alt. to T. S. Owens)
Terry K. McGowan, Lighting Ideas, Inc., OH LM]
(VL to 410, 411)
(Alt. to M. S. O'Boyle)
Ronald Michaelis, South Bend Vicinity Electrical JATC, IN
[L]
(Alt. to P. Costello)
Ronald Sweigart, E.!. duPont de Nemours & Company, Inc.,
DE [U]
(Alt. to C. L. Boynton)

CODEgMAKJiNG PANEL NO. 19
AJrtides 545 9 547 9 550 9 551 9 552 9 553 9 555 9 16049 675 9 Annex l[)9 Examples DB and D.ll.Z
!Leslie Sabin-Mercado, Chair
San Diego Gas & Electric Company, CA rUT]
Rep. Electric Light & Power GrouplEEI
Bany Bauman, Alliant Energy, WI [U]
Rep. American Society of Agricultural & Biological
Engineers
Wimam BrlLBce Bowman, Fox Systems, Inc., GA [1M]
Rep. Independent Electrical Contractors, Inc.
Roger IL. Carlson, Monaco Coach Corporation, IN [M]
(VL to 550, 551, 552)
Monte R.. JEwing, Wisconsin Department of Commerce, WI
[E]
Rep. International Association of Electrical Inspectors
James W. Finch, Kampgrounds of America, Inc., MT [U]
(VL to 550, 551, 552, 555)
Bmce A. Hopkins, Recreation Vehicle Industry Association,
VA[M]
(VL to 550, 551, 552)

2008 Edition

NATIONAL ELECTRICAL CODE

Thomas R. Lichtenstein, Underwriters Laboratories Inc., IL
[RT]
Linda .I. Little, IBEW Local 1 Electricians JATC, MO [L]
Rep. International Brotherhood of Electrical Workers
Timothy P. McNeive, Thomas & Betts Corporation, TN [M]
Rep. National Electrical Manufacturers Association
John Mikel, Skyline Corporation, IN [M]
Rep. Manufactured Housing Institute
(VL to 550, 551, 552)
Tug IL. Miller, National Association of RV Parks &
Campgrounds, CA [U]
Rep. National Assn. of RV Parks & Campgrounds
(VL to 550, 551, 552)
Kenneth Weakley, Mountain Electric, Inc., CA [1M]
Rep. National Electrical Contractors Association

7G-19

NATIONAL ELECTRICAL CODE COMMITTEE

Michael L. Zieman, RADCO, CA [RT]

David W. Johnson, CenTex IEC, TX [1M]
(Alt. to W. B. Bowman)
Kent Perkins, Recreation Vehicle Industry Association, VA

(VL to 545, 550, 551, 552)

Alternates

[M]

Glenn H. Ankenbrand, Delmarva Power, MD [UT]
(Alt. to L. Sabin-Mercado)
Steven J. Blais, EGS Electrical Group, IL [M]
(Alt. to T. P. McNeive)
Joseph M. Bolesina, Pinellas County Building Inspections,
FL [E]
(Alt. to M. R. Ewing)
William (Billy) E. Duggins, San Diego Electrical Training
Center, CA [L]
(Alt. to L. 1. Little)

(VL to 550, 551, 552)
(Alt. to B. A. Hopkins)
Michael J. Slifka, PFS Corporation, WI [M]
(VL to 550, 551, 552)
(Alt. to J. Mikel)
Raymond F. Tucker, Consulting Professional
Engineer/RADCO, CA [RT]
(VL to 545, 550, 551, 552)
(Alt. to M. L. Zieman)
Eugene W. Wirth, Underwriters Laboratories Inc., WA [RT]
(Alt. to T. R. Lichtenstein)

CODE-MAKING PANEL NO. 20
Articles 708 and Annexes F and G
Donald P. Bliss, Chair
National Infrastructure Institute, NH [U]
Tarry L. Baker, Broward County Board of Rules &

Leslie Sabin-Mercado, San Diego Gas & Electric Company,

Appeals, FL [E]
Rep. International Association of Electrical Inspectors
Lawrence A. Bey, Cummins Power Generation, MN [M]
Richard Bingham, Dranetz-BMI, NJ [M]
Jeffrey Boksiner, Telcordia Technologies, Inc., NJ [UT]
Rep. Alliance for Telecommunications Industry Solutions
James C. Carroll, Square D Company/Schneider Electric,
TN [M]
Wayne G. Carson, Carson Associates, Inc., VA [SE]
George R. Dauberger, Thomas & Betts Corporation, TN
[M]
Palmer L. Hickman, National Joint Apprentice & Training
Committee, MD [L]
Rep. International Brotherhood of Electrical Workers
Ronald A. Keenan, M. C. Dean, Inc., VA [1M]
Rep. Independent Electrical Contractors, Inc.
Gil Moniz, National Electrical Manufacturers Association,
MA[M]
Wayne D. Moore, Hughes Associates, Inc., RI [SE]
Timothy S. Owens, City of Santa Clara, CA [E]
Rep. International Association of Electrical Inspectors

CA[UT]

Evangelos Stoyas, U.S. Army Corps of Engineers, VA [E]
Timothy P. Zgonena, Underwriters Laboratories Inc., IL
[RT]

Alternates
Paul J. Casparro, Scranton Electricians JATC, PA [L]
(Alt. to P. L. Hickman)

Robert Michael Forister, National Electrical Manufacturers
Association, WY [M]
(Alt. to G. Moniz)
Peyton S. Hale, Jr., U.S. Army Corps of Engineers, VA [E]
(Alt. to E. Stoyas)
John R. Kovacik, Underwriters Laboratories Inc., IL [RT]
(Alt. to T. P. Zgonena)
Alan Manche, Square D Company/Schneider Electric, KY
[M]
(Alt. to J. C. Carroll)
Stephen V. St. Croix, Primo Electric Company, Inc., MD
[1M]
(Alt. to R. A. Keenan)

NFPA Electrical Engineering Division Technical Staff
Mark W. Earley, Assistant Vice President/Chief Electrical
Engineer

Ernest W. Buss, Senior Electrical Engineer
Mark Cloutier, Senior Electrical Engineer
Jean A. O'Connor, Electrical Project Specialist/Support
Supervisor

Lee F. Richardson, Senior Electrical Engineer
Richard J. Roux, Senior Electrical Specialist
Jeffrey S. Sargent, Senior Electrical Specialist
Joseph V. Sheehan, Principal Electrical Engineer

Support Staff
Carol Henderson
Mary Warren-Pilson
Kimberly Shea

NFPA Staff Editors
Joyce G. Grandy
Pamela Nolan
Kim Cervantes

Note: Membership on a committee shall not in and of itself constitute an endorsement of the Association or any
document developed by the Committee on which the member serves.

Committee Scope: This Committee shall have primary responsibility for documents on minimizing the risk of
electricity as a source of electric shock and as a potential ignition source of fires and explosions. It shall also be
responsible for text to minimize the propagation of fire and explosions due to electrical installations.

70-20

NATIONAL ELECTRICAL CODE

2008 Edition

ARTICLE 90 - INTRODUCTION

NIFlP'A

7~

National Electrical Code®

IMPORTANT NOTE: This NFPA document is made
available for use subject to important notices and legal
disclaimers. These notices and disclaimers appear in all
publications containing this document and may be found
under the heading "Important Notices and Disclaimers
Concerning NFIPA Documents." They can also be oba
tained on request from NJFPA. or viewed at
www.nfpa.orgldisclaimers.

o

9«).2

communications conductors, equipment, and raceways; and
optical fiber cables and raceways for the following:
(1) Public and private premises, including buildings, structures, mobile homes, recreational vehicles, and floating
buildings
(2) Yards, lots, parking lots, carnivals, and industrial
substations
(3) Installations of conductors and equipment that connect
to the supply of electricity
(4) Installations used by the electric utility, such as office
buildings, warehouses, garages, machine shops, and
recreational buildings, that are not an integral part of a
generating plant, substation, or control center.
(JR)

No~

Covered. This Code does not cover the following:

(1) Installations in ships, watercraft other than floating

90J. PlllIrpose.

buildings, railway rolling stock, aircraft, or automotive
vehicles other than mobile homes and recreational vehicles

(A) Practical Safegmllrrllnll1lg. The purpose of this Code is
the practical safeguarding of persons and property from
hazards arising from the use of electricity.

FPN: Although the scope of this Code indicates that the
Code does not cover installations in ships, portions of this
Code are incorporated by reference into Title 46, Code of
Federal Regulations, Parts 110-113.

(B) Adequacy. This Code contains provisions that are considered necessary for safety. Compliance therewith and
proper maintenance results in an installation that is essentially free from hazard but not necessarily efficient, convenient, or adequate for good service or future expansion of
electrical use.

(2) Installations underground in mines and self-propelled
.mobile surface mining machinery and its attendant
electrical trailing cable
(3) Installations of railways for generation, transformation,
transmission, or distribution of power used exclusively
for operation of rolling stock or installations used exclusively for signaling and communications purposes
(4) Installations of communications equipment under the
exclusive control of communications utilities located
outdoors or in building spaces used exclusively for
such installations
(5) Installations under the exclusive control of an electric
utility where such installations

FPN: Hazards often occur because of overloading of wiring systems by methods or usage not in conformity with
this Code. This occurs because initial wiring did not provide for increases in the use of electricity. An initial adequate installation and reasonable provisions for system
changes provide for future increases in the use of
electricity.

(C) .lIJj]~entJioH1l. This Code is not intended as a design speci-

fication or an instruction manual for untrained persons.
(D) Relatimll ~o Other ITIl1lterllllatllirnllall S~aIl1ldlards. The requirements in this Code address the fundamental principles
of protection for safety contained in Section 131 of International Electrotechnical Commission Standard 60364-1,
Electrical Installations of Buildings.
FPN: IEC 60364-1, Section 131, contains fundamental
principles of protection for safety that encompass protection against electric shock, protection against thermal effects, protection against overcurrent, protection against
fault currents, and protection against overvoltage. All of
these potential hazards are addressed by the requirements in
this Code.

90.2 Scope.
(A) OlllveJrcd!. This Code covers the installation of electrical conductors, equipment, and raceways; signaling ~nd

2008 Edition

NATIONAL ELECTRICAL CODE

a. Consist of service drops or service laterals, and associated metering, or
b. Are located in legally established easements or
rights-of-way designated by or recognized by public
service commissions, utility commissions, or other
regulatory agencies having jurisdiction for such installations, or
c. Are on property owned or leased by the electric
utility for the purpose of communications, metering,
generation, control, transformation, transmission, or
distribution of electric energy.
FPN to (4) and (5): Examples of utilities may include those
entities that are typically designated or recognized by governmental law or regulation by public service/utility commissions
and that install, operate, and maintain electric supply (such as
generation, transmission, or distribution systems) or communication systems (such as telephone, CATV, Internet, satellite, or

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