What is the purpose of the NEC code?
The NEC (the National Fire Protection Association’s NFPA 70) is a widely-adopted model code for the installation of electrical components and systems. Its purpose is to safeguard persons and property from hazards arising from the use of electricity (NEC 90.1(A)).
How do I use the National Electrical Code book?
Quote from Youtube video: 2 is wiring. And protection. 3 is wiring methods chapter. 4 is equipment chapter 5 is special occupant see special equipment special conditions chapter 8 is communication chapter 9 is tables.
What is the most current NEC code book?
NFPA 70®, National Electrical Code® (NEC®), 2020 edition, offers the most current requirements for electrical installations and inspection in residential, commercial, and industrial settings.
What is the National Electric Code quizlet?
what is the purpose of the national electrical code? The practical safeguarding of persons and property from hazards arising from the use of electricity.
Who administers NEC?
the National Fire Protection Association
Background. The NEC is developed by NFPA’s Committee on the National Electrical Code, which consists of twenty code-making panels and a technical correlating committee. Work on the NEC is sponsored by the National Fire Protection Association.
What’s the importance and advantages of knowing the electrical codes?
Not only do these codes protect life and property, they also help cities and building owners avoid lawsuits by creating a standard set of laws that people can universally adhere to.
What are the articles of the NEC?
- Article 400, Flexible Cords and Cables.
- Article 402, Fixture Wires.
- Article 404, Switches.
- Article 406, Receptacles, Cord Connectors, and Attachment Plugs.
- Article 408, Panelboards and Switchboards.
- Article 409, Industrial Control Panels.
- Article 410, Luminaires, Lampholders, and Lamps.
- Article 422, Appliances.
Where are the answers in the NEC code book?
Quote from the video:
Quote from Youtube video: Anything. So what you do now is use the table of contents method you close your code book. And there's a contents tab right there at the beginning you use your contents. Tab you flip.
What are the main topics of the NEC?
Articles: The articles are the main topics of the NEC, beginning with NEC Article 80, Administration and Enforcement, and ending with NEC Article 830, Network-Powered Broadband Communications Systems. Chapters: Nine chapters form the broad structure of the NEC.
What is the difference between a standard and a code quizlet?
Standards are suggested practice. Codes are legal requirements. You just studied 13 terms!
What is the NEC divided into?
and nine Chapters
The NEC is divided into an Introduction and nine Chapters.
Which of the following NEC articles defines communication circuits?
Article 800
Article 800 is titled “Communication Circuits.” Within the NEC it goes on to define the scope of the article in 800.1 as: “This article covers communication circuits and equipment.” Therefore, to understand the scope of this article, it is necessary to understand the definition of a communication circuit.
In what code article would you find information on intrinsically safe systems?
National Electrical Code Top Ten Tips: Article 504 — Intrinsically Safe Systems. Article 504 covers the installation of intrinsically safe apparatus in Class I, Class II, and Class III locations (defined in Article 500.5) [504.1].
What section of the NEC defines the working clearances around electrical equipment?
NEC Section 110.26
NEC Section 110.26(A) requires a clear space at least 30 inches wide and 36 inches deep if the equipment is likely to be worked on while energized. This space is necessary not only to allow workers room to perform tasks but also room to move if something goes wrong.
Which article of the NEC covers grounding and bonding?
Article 250
Article 250 of the NEC covers the grounding and bonding of electrical systems.
What is the difference between bonding and grounding?
Bonding is the connection of non-current-carrying conductive elements like enclosures and structures. Grounding is the attachment of bonded systems to the earth. Both are necessary to safeguard people and property from electric hazards.
What is NEC Article 250 Grounding and bonding?
Article 250 covers the grounding requirements for providing a path to the earth to reduce overvoltage from lightning, and the bonding requirements for a low-impedance fault current path back to the source of the electrical supply to facilitate the opera- tion of overcurrent devices in the event of a ground fault.
What is the difference between grounding and grounded?
A grounded wire is required by the National Electrical Code to be white or gray in color on the customer side of the meter. Grounded wires on the utility side of the system do not generally have insulation. A “grounding” wire on the other hand is a safety wire that has intentionally been connected to earth.
What is the difference between a grounded conductor and an equipment grounding conductor?
The NEC even refers to a Grounded Conductor as a Current-Carrying Conductor. On the other hand, an Equipment Grounding Conductor (bare or green) only carries current during a short-to-ground condition, when electrical current is briefly introduced onto normally non-current-carrying metal parts.
What is the difference between a neutral and a grounded conductor?
The neutral carries the unbalanced load back to the source. The grounded conductor is the one that is intentionally grounded. In the most common wiring systems for industrial plants, commercial buildings, and residential buildings, the neutral is the intentionally grounded conductor.
