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Summary of the NEC 2020 Changes


Quiz Questions

1.

NEC 2020 is still adopted in 2024 in the following States:

Hawaii, Alaska, Utah, Montana, North Dakota South Dakota, Iowa, Oklahoma, Arkansas, Louisiana, Georgis, South Carolina, North Carolina West Virginia, Connecticut, Rhode Island, Main , and Vermont.

True
False
2. In Articles 110.14 Conductor Termination and splicing; Properly tightened electrical terminations are crucial, as loose connections can lead to numerous service calls, equipment damage, and even electrical fires. This rule, which first appeared in the 2020 NEC, was revised to require
The use of an approved method (not just a calibrated torque tool) to achieve the necessary torque value.
To simply tighten the screws hard enough manually
3. In Article200.3 Connections to Grounded System, while there are both neutral conductors and grounded-phase conductors, this section primarily focuses on differentiating neutral conductors from phase conductors and grounded-phase conductors. The rule ensuring the proper connection of neutral conductors was revised to clarify that it applies to
all premises wiring systems, both indoor and outdoor.
To indoor premises only
4. In Article 210.15 Reconditioned Equipment. The Code addresses the reconditioning of electrical equipment globally. A new rule was added prohibiting the reconditioning of certain protective devices required by Article 210, such as GFCIs, GFPEs, and AFCIs, due to the risks involved with reconditioning these sensitive, lifesaving devices.
True
False
5. In article 210.63 Equipment Requiring Servicing; this rule, aimed at reducing the need for extension cords to service equipment such as HVAC units, combines the requirements of 210.63 and 210.64. It mandates receptacle outlets for servicing equipment
and has been expanded to include all serviceable equipment, not just heating and air-conditioning.
To only heating and air-conditioning.
6. In Article 310.4 Conductor Construction and Applications; The construction requirements for conductors suitable for carrying up to (and including) 2,000V, previously in 310.104 of the 2020 Code, were relocated to this section. Information for conductors suitable for carrying over 2,000V was moved to the
new Article 311.
Article 500
7. In Article 320.80 Conductor Ampacity; Language was added to subsection (A) requiring ampacity adjustment to be made in accordance with 310.15(C)(1) when
more than two Type AC cables containing two or more current-carrying conductors in each cable are installed in contact with thermal insulation, caulk, or sealing foam without maintaining spacing between conductors.
requiring ampacity adjustment for Type MC cable used in thermal insulation
8. In Article 404.4 Damp or wet locations; This section was edited to prohibit
Any physical damage to the switches.
switches from being installed in tub spaces; the previous language only prohibited them from being installed within the tub itself.
9. Article 518.6 Illumination; Addresses
The illumination in the living room and kitchen
The illumination for working spaces around fixed service equipment, switchboards, switchgear, panelboards, or motor control centers installed outdoors where this equipment serves assembly occupancies.
10. Article 555.13 Bonding of Noncurrent-Carrying Metal Parts;
Requires all the outlets to be installed above countertop in kitchen.
This rule was relocated here from 553.11 and requires all metal parts likely to become energized and in contact with water to be connected to the ground bus of the panelboard.
11.

In Article 600.6 Disconnecting Means; This rule was revised to state that conductors passing through a sign, and not disconnected by the sign disconnect, must be

inaccessible to service personnel. Subsection (A)(4) requires first responder access to sign disconnects located remotely from the sign.
Accessible to everybody
12.

In Article 625.54 GFCI Protection for Personnel; The GFCI requirement was expanded to apply to

all receptacles installed for the connection of electric vehicle charging equipment.
To only receptables in the kitchen
13. In Article 680.14 Wiring Methods in Corrosive Environment. The definition of a corrosive environment was removed, leaving only the requirements for the wiring methods permitted in a corrosive location.
True
False
14. In Article 705.2 Definitions. This definition was added to clarify that the conductors between power production equipment or a power source and the service equipment or distribution equipment are
not feeder conductors.
Are feeder conductors
15. In Article 712.65 Available DC Fault Current. The term "short-circuit current" was replaced with "fault current," and "maximum available short-circuit current" was replaced with "available fault current."
True
False