NCCER 26105-20

Two organizations that play critical roles in world wide electrical standards are ___ and ____.

(IEC) and (IEEE)

Today, the NEC is administered by the ____.

(NFPA)

NEC article ___ provides the general requirements for electrical installations. It contains info about marking requirements, required working space around electrical equipment,and more.

110

In ____ the National association of fire engineers met in Richmond, Virginia. From this meeting came the idea to draft the first National Electric Code.

1881

In ____ the NFPA takes over publishing the NEC from NBFU.

1962

The NEC has a rich history, from its conceptual beginnings in the late ____ century to its wide adoption today, the NEC has become the primary driver for ensuring the safe installation of electrical systems.

19th

NEC article ____ covers the requirements for grounding and bonding electrical systems. It list the systems required, permitted and not permitted to be grounded and provides the requirements for grounding connection locations.

250

NEC article ____ covers the use and installation of flexible cords and cables, including the trade name, type letter, wire size, number of conductors, conductor installation, outer covering, and use of each type.

400

The chapters _____ are concerned with special occupancies, equipment, and conditions. Rules in these chapters may modify or amend those in any of the first seven chapters.

5, 6, and 7

NEC article ____ covers electric signs and outline lighting.

600

The main body of the NEC begins with Article ____, introduction. This provides an overview of the NEC. Topics covered in this article include: Purpose of the NEC Scope of code book Code arrangement Enforcement Mandatory rules, permissive rules, and explanatory material Formal interpretation Examination of equipment for safety Wiring planning Units of measurement

90

Informative annex ___ contains a list of product safety standards.

A

Informative annexes ____ through ____ contain helpful information that is not mandatory.

A - J

Informative annex ___ contains information for determining ampacities of conductors under engineering supervision.

B

Headings for each NEC application are written in ____.

Bold Black letters

Informative annex ____ contains the conduit fill tables for multiple conductors of the same size and type within the accepted raceways.

C

The chapters ___ present the rules for the design and instillation of electrical systems. A) 5,6, and 7 B) 8 C) 1, 2, 3, and 4 D) 9

C) 1, 2, 3, and 4

Informative annex ___ contains examples of calculations for branch circuits, feeders, and services, as well as load calculations.

D

NEC article 100 contains a list of common ______ specific to a single article and are included in the second section of each article.

Definitions

Informative annex ____ contains information on types of building construction.

E

NEC chapter ____ is a special category for wiring associated with electronic communications systems including telephone, radio, and TV, satellite dish, network-powered broadband systems, and community antenna TV and radio distribution systems.

Eight (8)

This chapter covers various types of of communications systems.

Eight (8)

_____ explain the circumstances under which a specific part of the NEC does not apply, and are written in italics.

Exceptions

NEC articles 501, 502, and 503 cover the installation of _______ wiring in hazardous (classified) locations. This system is designed to prevent the ignition of a surrounding explosive atmosphere when arcing occurs within the electrical system, and has three classes.

Explosive-proof

Informative annex ____ provides information on critical operations power systems.

F

NEC chapter ___ covers special occupancy areas. These areas where sparks or heat generated by electrical equipment mat cause an explosion or fire. Examples would include: commercial garages, aircraft hangars, and service stations.

Fife (5)

____ may be included with explanations to show how an application might appear.

Figures

The chapters of the NEC are organized into ____ major categories.

Five (5)

Informative annex ___ is for informational purposes; it covers supervisory control and data acquisition (SCADA) systems.

G

Informative annex ___ contains suggested requirements for administration and enforcement of the NEC.

H

Informative annex ____ contains the recommended torque tables from UL standard 468A-B.

I

_____ explains something in an application, suggest other sections to read about the application, or provides tips about the application.

Informational note

Two definitions from the NEC article 100 you should become familiar with are : ___ and ____.

Labeled and Listed

The objectives of NEMA are to ___ and ___ the quality and reliability of products, to ensure safety standards in the manufacture and use of products, and to develop product standards covering matters such as naming, ratings, performance, testing, and dimensions.

Maintain , Improve

In addition to different types of text, the NEC contains two types of rules, ____ and ____.

Mandatory, permissive

The primary purpose of the ____ is the practical safeguarding of persons and property from hazards arising from the use of electricity. A thorough knowledge is one of the first requirements for becoming a trained electrician.

NEC

____ founded in 1926, is made up of companies that manufacture equipment used for generation, transmission, distribution, control, and utilization of electric power.

NEMA

By 1896 ___ (NELA) was working to make the requirements of the fire insurance organizations and electrical utilities fit together.

National Electric Light Association

The first nationally recommended electrical code was published by the ____ (now known as the American insurance Association) in 1895.

National board of Fire Underwriters

NFPA 70, also known as the ____. It is one of the most important tools for electricians. When used together with local and state laws, it provides the minimum requirements for the installation of electrical systems.

National electric code (NEC)

____ (NRTLs) are product safety certification laboratories. These labs perform extensive testing of new products to make sure they are built to establish standards for electrical and fire safety.

Nationally Recognized Testing Laboratories

Chapter ___ contains tables that are applicable when referenced by other chapters in the NEC.

Nine (9)

In order to make best use of the NEC, you must first become familiar with its structure. The NEC is organized into ___ chapters, followed by informative annexes, the index, a schedule for the next code cycle, and info on submitting proposed changes.

Nine (9)

NEC chapter ___ contains detailed tables along with explanatory notes. These tables cover topics such as conduit bends, raceway fill, and conductor dimensions.

Nine (9)

____ publishes a list of NRTLs.

OSHA

Class ___ areas containing flammable gases or vapors in the air and may include: paint spray booths, dyeing plants where hazardous liquids are used, and gas generator rooms. (NEC article 501)

One (1)

NEC chapter ___ covers the installation of emergency and legally required standby systems.

Seven (7)

NEC chapter ____ provides the requirements for various types of special equipment not covered in other chapters of the NEC.

Six (6)

____ often included to provide more detailed application requirements, such as for different wire sizes, box size, or motor types.

Tables

Class _____ areas that are hazardous because of the presence of easily ignitable fibers or other particles in the air, although not large enough quantities to produce ignitable mixtures. These locations may include: cotton mills, rayon mills, and clothing manufacturing plants.

Three (3)

NEC chapter ____ lists the rules on wiring methods and materials. The materials and procedures to use on a particular system depend on the type of building construction, type of occupancy, location of the wiring of the building, or in the area surrounding the building, and mechanical factors.

Three (3)

Class ___ areas where combustible dust is present, such as grain-handling and storage plants, dust and stock collector areas, and sugar-pulverizing plants. (NEC article 502)

Two (2)

NEC chapter _____ discusses wiring design and protection, the information electricians need most often. It covers the use and identification of grounded conductors, branch circuits, feeders, calculations, services, overcurrent protection, grounding, and surge protective devices.

Two (2)

The definitions for labeled and listed are important because in addition addition to the installation rules, you must pay close attention to the ____ and ____ of materials used in electrical wiring systems.

Type and quality

The internet address to submit input for the NEC is ____.

www.nfpa.org/70