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NEC 2017 Code Changes in Equipment for General Use


Quiz Questions

1.New provisions were added for "Electronic Lighting Controlled Switches" prohibiting current on the equipment grounding conductor with a future effective date.
Electronic lighting control switches shall be listed. Electronic lighting control switches shall not introduce current on the equipment grounding conductor during normal operation. The requirement to not introduce current on the equipment grounding conductor shall take effect on
January 1, 2020
January 1, 2019
2. Outlet Box Hood. A housing shield intended to fit over a faceplate for flush-mounted wiring devices, or an integral component of an outlet box, or a faceplate for flush-mounted wiring devices.
NEC 2017 Code Changes in Equipment for General Use 1
The hood does not serve to complete the electrical enclosure; it reduces the risk of water coming in contact with electrical components within the hood, such as attachment plugs, current taps, surge protective devices, direct plug-in transformer units, or wiring devices.
The hood serves to complete the electrical enclosure.
3. Receptacles that are controlled by an automatic control device must be permanently marked with the symbol shown in Figure 406.3(E) and the word "Controlled." Required marking must be on the receptacle face (not the cover plate) and be visible after installation.
NEC 2017 Code Changes in Equipment for General Use 2
True
False
4. New requirements were added for receptacle outlets with USB charger(s). ________________ ampere receptacle that additionally provides Class 2 power shall be listed and constructed such that the Class 2 circuitry is integral with the receptacle.
NEC 2017 Code Changes in Equipment for General Use 3
A 125-volt 15- or 20-ampere
A 220-Volt 30- or 40-ampere
5. Tamper-resistant receptacles
are required for replacement receptacles "except where a non-grounding receptacle is replaced with another non-grounding receptacle.
are not required for replacement receptacles "except where a non-grounding receptacle is replaced with another non-grounding receptacle.
6. Requirements for tamper-resistant receptacles were expanded to mobile homes, preschools and elementary education facilities, as well as other locations where small children are likely to congregate. TR receptacles were expanded to 250-volt receptacles as well as 125-volt receptacles.
NEC 2017 Code Changes in Equipment for General Use 4
True
False
7.Dimmer-controlled receptacle provisions have
NEC 2017 Code Changes in Equipment for General Use 5
been deleted.
not been deleted.
8. Ground-Fault Circuit-Interrupter (GFCI) Protection for Personnel.
NEC 2017 Code Changes in Equipment for General Use 6
(A) General. Appliances identified in 422.5(A)(1) through (5) rated 250 volts or less and 60 amperes or less, single- or 3-phase, shall be provided with GFCI protection for personnel. Multiple GFCI protective devices shall be permitted but shall not be required.
(1) Automotive vacuum machines provided for public use
(2) Drinking fountains water coolers
(3) High-pressure spray washing machines – cord- and plug-connected
(4) Tire inflation machines provided for public use
(5) Vending machines
(B) Type. The GFCI shall be readily accessible, listed, and located in one or more of the following locations:
(1) Within the branch circuit overcurrent device
(2) A device or outlet within the supply circuit
(3) An integral part of the attachment plug
(4) Within the supply cord not more than 300 mm (12 in.) from the attachment plug
(5) Factory installed within the appliance
(A) & (B) both
9. Maximum length of flexible cord for built-in dishwashers increased from ________________ while the receptacle outlet for a built-in dishwasher can only be located in the space adjacent to the dishwasher.
1.2 m (4ft) to 2.0 m (6.5 ft)
1.5 m (5ft) to 3.0 m (8 ft)
10.

The maximum length of a flexible cord for a cord-and plug-connected range hood has been increased from

900 mm (36 in.) to 1.2 m (4 ft).
100 mm (6 in.) to 2.4 m (8 ft).
11.

Label Provided by Manufacturer. The manufacturers of electric space-heating cables shall provide marking labels that indicate that the space-heating installation incorporates electric space-heating cables, and instructions that the labels shall be affixed to the panelboards to identify which branch circuits supply the circuits to those space-heating installations. If the electric space-heating cable installations are visible and distinguishable after installation, the labels shall not be required to be provided and affixed to the panelboards.
NEC 2017 Code Changes in Equipment for General Use 7

True
False
12. Fixed Resistance and Electrode Industrial Process Heating Equipment Part I. General 425.1 Scope. This article covers fixed industrial process heating employing electric resistance or electrode heating technology. For the purpose of this article, heating equipment shall include boilers, electrode boilers, duct heaters, strip heaters, immersion heaters, process air heaters, or other approved fixed electric equipment used for industrial process heating. This article __________ apply to heating and room air conditioning for personnel spaces covered by Article 424, fixed heating equipment for pipelines and vessels covered by Article 427, and induction and dielectric heating equipment covered by Article 665, and industrial furnaces incorporating silicon carbide, molybdenum, or graphite process heating elements.
Shall not
Shall
13. The allowance for voltage output greater than 30 volts ac if an impedance heating system for fixed outdoor electric deicing and snow-melting equipment is provided with Class A GFCI protection has been
Deleted
enforced
14. Part-Winding Motors. A part-winding start induction or synchronous motor is one that is arranged for starting by first energizing part of its primary (armature) winding and, subsequently, energizing the remainder of this winding in one or more steps. A standard part-winding start induction motor is arranged so that one-half of its primary winding can be energized initially, and, subsequently, the remaining half can be energized, both halves then carrying equal current. A hermetic refrigerant compressor motor _________ be considered a standard part-winding start induction motor.
NEC 2017 Code Changes in Equipment for General Use 8
Shal
Shall not
15. New tap rule for a single motor allows _____________taps with the same conditions as is allowed in other areas of the NEC.
7.5 m (25 ft)
10 m (30 ft)


15 m (45 ft)
16. A new requirement was added requiring a wire-type equipment grounding conductor for non-threaded conduit systems on rooftops supplying such things as HVAC equipment.
True
False
17. Heat detecting circuit interrupter (HDCI) was ________ a list of devices for protection of single-phase room air conditioners.
Deleted from
Added to
18. A new requirement clarifies that feeder taps can be used if the generator is equipped with an overcurrent relay or other overcurrent protective device.
NEC 2017 Code Changes in Equipment for General Use 9
True
False
19. Listed cord sets incorporating GFCI protection for portable generators manufactured or rebuilt prior to January 1, 2015, are now permitted. GFCI requirements have been separated into unbonded (floating neutral) generators versus bonded neutral generators.
True
False
20. Generator disconnecting means have been reorganized. Provisions for disconnecting means, shut down of the prime mover, and provisions for generators installed in parallel
have been added.
have been deleted.