NEC Chapter 2 : Wiring and protection.
What does Chapter 2 of the NEC cover?
Chapter 2 provides the general rules for wiring and protection of conductors . The rules in this chapter apply to all electrical installations covered by the NEC—except as modified in Chapters 5, 6, and 7.
What does Chapter 4 of the NEC cover?
Chapter 4 has some logical arrangement of its own. Here are the groupings: Flexible cords and cables, fixture wires, switches, receptacles . Switchboards and panel boards .
What is Article 90 of the NEC?
What is the NEC Article 90? NEC Article 90 is the introduction and first article in the code book. It includes topics like why the code exists, how the code works, and what the code covers and does not cover.
What is Chapter 3 of the NEC?
Chapter 3 is really a modular assembly of Articles, each detailing a specific area of electrical installation . It starts with wiring methods (300), covers conductors (310), then covers enclosures (312 and 314). The next string of Articles (320 – 376) address specific types of cables.
What is the primary purpose of the NEC?
The purpose of the NEC is to ensure that electrical systems are installed in a manner that protects people and property by minimizing the risks associated with the use of electricity .
Is premises wiring is covered by the NEC?
So, it is clear that the NEC applies to premises wiring systems only . ... The National Electrical Safety Code is applicable to supply systems and to equipment operated by electric, telephone and cable television utilities.
Can so cord be used as permanent wiring?
SO cord can be permanently installed .
What does NEC Article 760 cover?
Article 760 covers the installation of wiring and equipment for fire alarm systems , including circuits controlled and powered by the fire alarm. These include fire detection and alarm notification, guard’s tour, sprinkler waterflow, and sprinkler supervi- sory systems. ... when and where a fire alarm system is required.
Which of the following is not covered by the NEC?
The NEC does not cover electrical installations in ships, water- craft, railway rolling stock, aircraft, or automotive vehicles. 10. The Code covers underground mine installations and self- propelled mobile surface mining machinery and its attendant electrical trailing cable.
Who enforces the NEC code?
The enforcement of the NEC is the responsibility of the authority having jurisdiction (AHJ) , who is responsible for interpreting requirements, approving equipment and materials, waiving Code requirements, and ensuring equipment is installed in accordance with listing instructions. 100.
What is Article 110 of the NEC?
Article 110 of the National Electrical Code (NEC) covers the general requirements for the examination and approval, installation and use, access to, and spaces about electrical equipment . ... The authority having jurisdiction (AHJ) must approve all electrical conductors and equipment [Sec. 110.2].
What is Article 100 in the NEC?
Article 100 defines a Grounded Conductor as – A system or circuit conductor that is intentionally grounded. This definition is undoubtedly correct, but as previously stated, a Grounding Conductor (aka Equipment Grounding Conductor) is ALSO grounded.
What is Article 392 of the NEC?
Article 392 of the NEC provides the basic requirements for installations using cable tray . The respective article for the cable type must also be followed. Table 392.10 ( 1) lists the type of cable that is allowed to be installed in tray and the types of raceway that can be used.
Can you splice in AC Condulet?
A. Splices are only permitted in conduit bodies that are marked by the manufacturer with their volume ; and the maximum number of conductors permitted in a conduit body is limited in accordance with 314.16(B) [314.16(C)(2)].
Can I use a conduit body as a junction box?
[314.16(C)(2)] Since a conduit body can function as a junction box, the volume allowance required for the conductors must not exceed the volume of the conduit body. ... Each raceway contains three 12 AWG conductors: one black, one white and one green conductor. For this installation, the conductors must be cut and spliced.
