Nec 2014 pdf download






















The matter is not yet settled. But this will be a court case worth following. Theft of private property is illegal. We are going to have to wait and see if the courts rule whether the NEC, once adopted into law, is private property or not.

They will tell us what we are allowed to do. Privitizing codes which have the force of law is unsupportable. There is no safety in the unknown. I think that if the NFPA is going to sue anyone they should be suing the states adopting their code into law.

That in itself is the copy write infringement. It is in the interest of the federal and local government to protect the general public by enacting laws electrical safety guidelines, rules, measures, means and regulations into law. The law is public domain and meant to be published free of charge for the commonwealth of every US citizen.

I think not. We posted this document in order to allow citizens to consult the laws by which we have chosen to make the law of the land. United States of America All citizens and residents are hereby advised that this is a legally binding document duly incorporated by reference and that failure to comply with such requirements as hereby detailed within may subject you to criminal or civil penalties under the law.

Ignorance of the law shall not excuse noncompliance and it is the responsibility of the citizens to inform themselves as to the laws that are enacted in the United States of America and in the states and cities contained therein. Uploaded by Public Resource on September 1, Internet Archive's 25th Anniversary Logo.

Search icon An illustration of a magnifying glass. User icon An illustration of a person's head and chest. Nash, Jr. TC on Electrical Systems Alt. Sampson Kevin T. Rock Rep. Jhonson, Interior Electric, Inc. Shelly Rep.

Jay Y. Shelly, Shelly Electric Company, Inc. Todd Rep. Murnane, Jr. Talka Rep. Terry, Electronic Theatre Controls Inc. Vannice Kenneth E. Vannice, Leviton Manufacturing Company Inc. Institute for Theatre Technology VL to , , , , Thomas E.

Telecommunications Industry Association Trevor N. Brunssen Rep. Moore James E. Dawson, E. Ohde Roland E. Deike, Jr. Cooke, Times Fiber Communications, Inc. Johnson Randolph J. Jensen, dbi-Telecommunication Infrastructure John A.

McCoy, Telco Sales, Inc. Robert Boyer Rep. National Electrical Manufacturers Association W. Prezioso Luigi G. Prezioso, M. Donald R. Thomas V. Don W. Alternates Rep. Blewitt Alt. Cook Alt. National Electrical Manufacturers Association E. Hamilton, III, E.

West Alt. Morris Rep. Yasenchak Douglas A. Consumer Product Safety Rep. Commission, MD [C]. Bobby J. Ron D. Donald Berlin, Intermatic Inc. American Lighting Association Kurt J. Carpenter Rep. Carlock, R. Alley Melvyn J. William S. International Sign Association Alt. Kochan VL to Rep. International Sign Association Amos D.

Lowrance, Jr. Michael S. American Lighting Association Charles S. Hewitt Sondra K. Todd, Westar Energy, Inc. Gray Rep. Barry S. Johnson Engineers Rep. Ron B. Chris Fairlee, Kampgrounds of America, Inc. Bauman VL to , , Rep. John P. McNeive Timothy P. Chilton Rep. Hopkins Michael L. Zieman Alternates Ronald D. Weaver, Jr. Lichtenstein Alt. These lists represent the membership at the time the Committee was balloted on the text of this edition.

A key to classifications is found at the front of this book. This Report has been submitted to letter ballot of the Code-Making Panels of the National Electric Code Committee and the results of the ballot can be found in the Report. This Report has also been submitted to letter ballot of the Technical Correlating Committee which consists of 12 voting members. It was voted unanimously affirmative to release this Report. These notices and disclaimers appear in all Changes other than editorial are buildings highlighted with gray shading within sections and with ver- 2 Yards, lots, parking lots, carnivals, and industrial sub- tical ruling for large blocks of changed or new text and for stations new tables and changed or new figures.

B Not Covered. This Code does not cover the following: ARTICLE 90 1 Installations in ships, watercraft other than floating build- Introduction ings, railway rolling stock, aircraft, or automotive vehicles other than mobile homes and recreational vehicles The purpose of this Code is dicates that the Code does not cover installations in ships, the practical safeguarding of persons and property from portions of this Code are incorporated by reference into hazards arising from the use of electricity.

This Code contains provisions that are con- electrical trailing cable sidered necessary for safety. Compliance therewith and 3 Installations of railways for generation, transformation, proper maintenance results in an installation that is essen- transmission, or distribution of power used exclusively tially free from hazard but not necessarily efficient, conve- for operation of rolling stock or installations used ex- nient, or adequate for good service or future expansion of clusively for signaling and communications purposes electrical use.

This occurs because initial wiring such installations did not provide for increases in the use of electricity. An initial adequate installation and reasonable provisions for 5 Installations under the exclusive control of an electric system changes provide for future increases in the use of utility where such installations electricity.

The re- sociated metering, or quirements in this Code address the fundamental principles b. Are on property owned or leased by the electric of protection for safety contained in Section of Inter- utility for the purpose of communications, metering, national Electrotechnical Commission Standard , generation, control, transformation, transmission, or Electrical Installations of Buildings.

Are located in legally established easements or Informative annexes are not part of the requirements of rights-of-way, or this Code but are included for informational purposes only. Are located by other written agreements either des- ignated by or recognized by public service commis- sions, utility commissions, or other regulatory agen- Chapter 1 — General. These Chapter 2 — Wiring and Protection Applies generally written agreements shall be limited to installations to all electrical Chapter 3 — Wiring Methods and Materials installations for the purpose of communications, metering, gen- eration, control, transformation, transmission, or Chapter 4 — Equipment for General Use distribution of electric energy where legally estab- lished easements or rights-of-way cannot be ob- Chapter 5 — Special Occupancies tained.

These installations shall be limited to federal lands, Native American reservations through the Supplements or modifies Chapter 6 — Special Equipment Chapters 1 through 4 U. Department of the Interior Bureau of Indian Chapter 7 — Special Conditions Affairs, military bases, lands controlled by port au- thorities and state agencies and departments, and lands owned by railroads.

Utilities may be subject to compliance with codes and standards covering their regulated activities as Figure Additional infor- mation can be found through consultation with the appropriate governmental bodies, such as state regulatory commissions, the This Code is intended to be suitable Federal Energy Regulatory Commission, and the Federal Com- for mandatory application by governmental bodies that ex- munications Commission.

The authority having jurisdiction insurance inspectors. The authority having jurisdiction for for enforcing this Code may grant exception for the instal- enforcement of the Code has the responsibility for making lation of conductors and equipment that are not under the interpretations of the rules, for deciding on the approval of exclusive control of the electric utilities and are used to equipment and materials, and for granting the special per- connect the electric utility supply system to the service mission contemplated in a number of the rules.

This Code is divided into the in- This Code may require new products, constructions, or troduction and nine chapters, as shown in Figure Chap- materials that may not yet be available at the time the Code ters 1, 2, 3, and 4 apply generally; Chapters 5, 6, and 7 apply is adopted.

In such event, the authority having jurisdiction to special occupancies, special equipment, or other special may permit the use of the products, constructions, or mate- conditions. These latter chapters supplement or modify the rials that comply with the most recent previous edition of general rules. Chapters 1 through 4 apply except as amended this Code adopted by the jurisdiction. Chapter 8 covers communications systems and is not Mandatory rules of this Code are ter 8.

B Permissive Rules. Permissive rules of this Code are ing paragraph and that requires suitability for installation in those that identify actions that are allowed but not required, accordance with this Code.

Informational Note No. Explanatory material, such as an informative list of product safety standards for electrical references to other standards, references to related sections equipment. Such notes are informational only and are not enforceable A Future Expansion and Convenience.

Plans and as requirements of this Code. Distribution vided as a guide to indicate the source of the extracted text.

B Number of Circuits in Enclosures. Copies of this manual can confined in a single enclosure be varyingly restricted. Lim- be obtained from NFPA. D Informative Annexes.

Nonmandatory information relative to the use of the NEC is provided in informative Informative annexes are not part of the enforce- able requirements of the NEC, but are included for infor- A Measurement System of Preference.

For the purpose mation purposes only. SI units shall appear first, and Code, formal interpretation procedures have been estab- inch-pound units shall immediately follow in parentheses.

The cases given items of equipment and materials referred to in this Code, in Where the actual measured size of a prod- uct is not the same as the nominal size, trade size designa- properly equipped and qualified for experimental testing, tors shall be used rather than dimensions. Trade practices inspections of the run of goods at factories, and service- shall be followed in all cases. This avoids the necessity for repetition of examinations by different 2 Extracted Material.

Where material is extracted from examiners, frequently with inadequate facilities for such another standard, the context of the original material shall work, and the confusion that would result from conflicting not be compromised or violated. Any editing of the ex- reports on the suitability of devices and materials examined tracted text shall be confined to making the style consistent for a given purpose.

It is the intent of this Code that factory-installed inter- 3 Industry Practice. Where industry practice is to ex- nal wiring or the construction of equipment need not be press units in inch-pound units, the inclusion of SI units inspected at the time of installation of the equipment, ex- shall not be required.

Where a negative impact on safety would re- recognized as having the facilities described in the preced- sult, soft conversion shall be used. D Compliance. Conversion from inch-pound units to SI sizes used in the original measurement. Soft conversion is units shall be permitted to be an approximate conversion.

Chapter 1 General. Acceptable to the authority having jurisdiction. A device intended to the proper application of this Code. It is not intended to to provide protection from the effects of arc faults by rec- include commonly defined general terms or commonly de- ognizing characteristics unique to arcing and by function- fined technical terms from related codes and standards.

In ing to de-energize the circuit when an arc fault is detected. Other definitions are Askarel. A generic term for a group of nonflammable syn- included in the article in which they are used but may be thetic chlorinated hydrocarbons used as electrical insulating referenced in Article Part I of this article contains definitions intended to Informational Note: Askarels of various compositional apply wherever the terms are used throughout this Code.

Under arcing conditions, the gases pro- Part II contains definitions applicable only to articles and duced, while consisting predominantly of noncombustible parts of articles specifically covering installations and hydrogen chloride, can include varying amounts of com- bustible gases, depending on the askarel type. Attachment Plug Plug Cap Plug. A device that, by I. General insertion in a receptacle, establishes a connection between the conductors of the attached flexible cord and the conduc- Accessible as applied to equipment.

Admitting close tors connected permanently to the receptacle. An organization, office, or individual responsible for enforcing the require- Accessible as applied to wiring methods.

Capable of ments of a code or standard, or for approving equipment, being removed or exposed without damaging the building materials, an installation, or a procedure. Capable of be- broad manner, since jurisdictions and approval agencies ing reached quickly for operation, renewal, or inspections vary, as do their responsibilities.

Where public safety is without requiring those to whom ready access is requisite primary, the authority having jurisdiction may be a federal, state, local, or other regional department or individual such as to actions such as to use tools, to climb over or remove a fire chief; fire marshal; chief of a fire prevention bureau, obstacles, or to resort to portable ladders, and so forth. Power conversion equipment trical inspector; or others having statutory authority.

For insur- ance purposes, an insurance inspection department, rating bu- that provides a means of adjusting the speed of an electric reau, or other insurance company representative may be the motor. In many circumstances, the property owner or his or her designated agent assumes the role Informational Note: A variable frequency drive is one type of the authority having jurisdiction; at government installa- of electronic adjustable speed drive that controls the rota- tions, the commanding officer or departmental official may be tional speed of an ac electric motor by controlling the fre- the authority having jurisdiction.

Performing a function without the necessity of Adjustable Speed Drive System. A combination of an ad- human intervention. An area including a basin with one or more of equipment. The maximum current, in amperes, that a con- similar plumbing fixtures. Interconnected battery subsystems con- without exceeding its temperature rating.

Utilization equipment, generally other than in- ers, and can include inverters, converters, and associated dustrial, that is normally built in standardized sizes or types electrical equipment. Bonded Bonding. Connected to establish electrical con- Circuit Breaker.

A device designed to open and close a tinuity and conductivity. A reliable conductor to to itself when properly applied within its rating. Informational Note: The automatic opening means can be integral, direct acting with the circuit breaker, or remote Bonding Jumper, Equipment. The connection between two from the circuit breaker. Adjustable as applied to circuit breakers. A qualifying Bonding Jumper, Main.

The connection between the term indicating that the circuit breaker can be set to trip at grounded circuit conductor and the equipment grounding various values of current, time, or both, within a predeter- conductor at the service.

Bonding Jumper, System. The connection between the Instantaneous Trip as applied to circuit breakers. A grounded circuit conductor and the supply-side bonding qualifying term indicating that no delay is purposely intro- jumper, or the equipment grounding conductor, or both, at a duced in the tripping action of the circuit breaker. Inverse Time as applied to circuit breakers. A qualifying term indicating that there is purposely introduced a delay in Branch Circuit.

The circuit conductors between the final the tripping action of the circuit breaker, which delay de- overcurrent device protecting the circuit and the outlet s.

Branch Circuit, Appliance. A branch circuit that supplies Nonadjustable as applied to circuit breakers. A quali- energy to one or more outlets to which appliances are to be fying term indicating that the circuit breaker does not have connected and that has no permanently connected lumi- any adjustment to alter the value of the current at which it naires that are not a part of an appliance. Branch Circuit, General-Purpose. A branch circuit that Setting of circuit breakers. The value of current, time, or supplies two or more receptacles or outlets for lighting and both, at which an adjustable circuit breaker is set to trip.

Clothes Closet. A nonhabitable room or space intended Branch Circuit, Individual. A branch circuit that supplies primarily for storage of garments and apparel. Communications Equipment. The electronic equipment Branch Circuit, Multiwire. A branch circuit that consists that performs the telecommunications operations for the of two or more ungrounded conductors that have a voltage transmission of audio, video, and data, and includes power between them, and a grounded conductor that has equal equipment e.

Communications Raceway. An enclosed channel of non- Building. A structure that stands alone or that is cut off metallic materials designed expressly for holding commu- from adjoining structures by fire walls with all openings nications wires and cables, typically communications wires therein protected by approved fire doors.

An enclosure that is designed for either surface mounting or flush mounting and is provided with a frame, Concealed. Rendered inaccessible by the structure or finish mat, or trim in which a swinging door or doors are or can of the building.

Informational Note: Wires in concealed raceways are con- sidered concealed, even though they may become acces- Cable Routing Assembly. A single channel or connected sible by withdrawing them. A conductor having no covering or elec- nications wires and cables, optical fiber cables, data cables trical insulation whatsoever.

A conductor encased within material tions equipment, Class 2 and Class 3 cables, and power- of composition or thickness that is not recognized by this limited fire alarm cables. Code as electrical insulation. Charge Controller. Equipment that controls dc voltage or Conductor, Insulated. A conductor encased within mate- dc current, or both, and that is used to charge a battery or rial of composition and thickness that is recognized by this other energy storage device.

Conduit Body. A separate portion of a conduit or tubing Dusttight. Constructed so that dust will not enter the en- system that provides access through a removable cover s closing case under specified test conditions.

Operation at a substantially constant sections of the system or at a terminal point of the system. Boxes such as FS and FD or larger cast or sheet metal boxes are not classified as conduit bodies.

Duty, Intermittent. Operation for alternate intervals of 1 Connector, Pressure Solderless. A device that estab- load and no load; or 2 load and rest; or 3 load, no load, lishes a connection between two or more conductors or and rest. Intermittent operation in which the load of mechanical pressure and without the use of solder. Continuous Load. A load where the maximum current is Duty, Short-Time. Operation at a substantially constant expected to continue for 3 hours or more.

Control Circuit. The circuit of a control apparatus or sys- Duty, Varying. Operation at loads, and for intervals of tem that carries the electric signals directing the perfor- time, both of which may be subject to wide variation. Dwelling, One-Family. A building that consists solely of Controller. A device or group of devices that serves to one dwelling unit. A building that consists solely of delivered to the apparatus to which it is connected.

Cooking Unit, Counter-Mounted. A cooking appliance Dwelling, Multifamily. A building that contains three or designed for mounting in or on a counter and consisting of more dwelling units. Dwelling Unit. A single unit, providing complete and in- dependent living facilities for one or more persons, includ- Coordination Selective.

Localization of an overcurrent ing permanent provisions for living, sleeping, cooking, and condition to restrict outages to the circuit or equipment sanitation.

An intentionally for the full range of available overcurrents, from overload constructed, low-impedance electrically conductive path to the maximum available fault current, and for the full designed and intended to carry current under ground-fault range of overcurrent protective device opening times asso- conditions from the point of a ground fault on a wiring ciated with those overcurrents.

Conductors drawn the operation of the overcurrent protective device or from a copper-clad aluminum rod, with the copper metal- ground-fault detectors. An enclosure designed for surface mounting electric power to the connected loads, that are external to that has swinging doors or covers secured directly to and and not controlled by an interactive system.

Electric Sign. A fixed, stationary, or portable self- Dead Front. Without live parts exposed to a person on the contained, electrically illuminated utilization equipment operating side of the equipment. The ratio of the maximum demand of a attract attention.

Systems of illumination uti- system or the part of the system under consideration. A unit of an electrical system, other than a conduc- lamps, or neon tubing. An overcurrent protective function. A device, or group of devices, or vides current-sensing, electronically derived time—current other means by which the conductors of a circuit can be characteristics, energy to initiate tripping, and an interrupting disconnected from their source of supply. Such fuses may or may not operate in a current-limiting fash- Garage.

A building or portion of a building in which one or ion, depending on the type of control selected. Surrounded by a case, housing, fence, or wall s that prevents persons from accidentally contacting ener- Informational Note: For commercial garages, repair and gized parts.

The case or housing of apparatus, or the fence Ground. The earth. An unintentional, electrically conductive from accidentally contacting energized parts or to protect connection between an ungrounded conductor of an electri- the equipment from physical damage. Electrically connected to, or is, a source of Grounded Grounding.

Connected connecting to voltage. A general term, including fittings, devices, appli- ances, luminaires, apparatus, machinery, and the like used as a Grounded, Solidly. Connected to ground without inserting part of, or in connection with, an electrical installation. Explosionproof Equipment. Equipment enclosed in a case Grounded Conductor. A system or circuit conductor that that is capable of withstanding an explosion of a specified is intentionally grounded.

A device in- ignition of a specified gas or vapor surrounding the enclo- tended for the protection of personnel that functions to de- sure by sparks, flashes, or explosion of the gas or vapor energize a circuit or portion thereof within an established within, and that operates at such an external temperature period of time when a current to ground exceeds the values that a surrounding flammable atmosphere will not be ig- established for a Class A device.

Fault Circuit Interrupters. Exposed as applied to live parts. Avast Free Security. WhatsApp Messenger. Talking Tom Cat. Clash of Clans. Subway Surfers. TubeMate 3. Google Play. Adele convinces Spotify to remove shuffle from all albums.



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