NEC 2020
Board Duties and Responsibilities
* to protect the life and safety of the public * provide exam to all qualified appl/indiv. *educate licensees • Hires / Appoints officers and chief managers • Makes key policy decisions • Duty to be free of conflicts of interests • Act by majority vote unless specified otherwise
The emergency electrical disconnects for attended self service gasoline stations or convenience stores with motor fuel dispensing facilities must be located NOT more than _____ from the motor fuel dispensers they serve.
100 ft. ref pg 419
Solor photovotaic system dc circuits on or in 1 or 2 family dwellings shall be permitted to have a max volt of no greater than ___ volts
1000 (Check NEC pg 583) if you have question :)
Where a 15 amp rated general use ac snap switch is used as a disconnecting means for an ac motor, the NEC requires the MAX full load current rating of the motor to be NO more than ______ amperes.
12
Board of Examiners
12 members total _____________________ 5 appointed by governor 1 from Dept. of Inssuance 1 w/Unlimited Lic 1 from Univ of NC teaches Elect Eng 1 chief Elec inspector of a city or county in NC 1 w/Unlimited Lic that is ALSO Elected Rep of Carolina Contractors Assoc and a business owner or partner of a corporation 2 members with no ties to construction who represent interests of the public
Where time delay (dual element) fuses are used for short-circuit and ground fault protection for both windings of a part winding synchronous motor, the fuses shall be permitted to have a rating NOT exceeding ____ of the full load current of the motor.
150 percent ref pg 308
Where compressed natural gas vehicles are repaired in a commercial major repair garage, the area within ______ of the ceiling shall be considered unclassified where adequate ventilation is provided.
18 inches ref pg 408 & 411
For emergency systems where internal combustion engines are used as the prime mover, an on site fuel supply sufficient for not less than ____ full demand operation of the system.
2 hours - ref. pg 609
When a conduit containing service entrance conductors runs beneath a building, what is the MIN depth of concrete required to cover the conduit for it to be considered "outside" the building?
2 inches
All 15 or 20 ampere single phase 125 volt receptacles located within at LEAST ______ of the edge of a decorative fountain shall be provided with GFCI protection for personnel.
20 feet ref pg 577
When conduits enter a floor standing switchboard, switchgear or panel board at the bottom, the conduits including their end fittings shall not rise more than ______ above the bottom of the enclosure.
3 inches - reference NEC pg 272
Each operating room of a health care facility shall be provided with a MINIMUM of _____ listed hospital grade receptacles.
36 ref pg 439
Where track lighting is installed in a continuous row, each individual section of NOT more than _____ in length shall be securely supported
4 ft ref pg 285
A bonding jumper connected between the communications grounding electrode system at the building or structure service where separate electrodes are used shall not be smaller than the size _____ copper.
6 AWG - ref pg 667
Where power for the equip is directly assoc. with the radio frequ. distr. system carried by the coaxial cable the power source is a power limiting transformer, what is the max voltage this coaxial cable may carry?
60 volts - refer to page 684 if needed.
Min height of a fence enclosing an outdoor install of 2400 volt elect. equipment?
7 feet
What percent of electrical supplied spaces in a recreational vehicle park must be equipped with at least one (1) 30 ampere 125 volt receptacle outlet?
70% ref pg 489
Conduits supplying outlets for arc and zenon motion picture projectors of the professional type shall shall be a MIN size of _____ and shall have an ampacity of not less than the projector current rating.
8 AWG - ref pg 468
100.0 Continuous Load
A Load where the maximum current is expected to continue for 3 hour or more. (CMP-2)
100. Switch, Bypass Isolation.
A Manual, non-automatic, or automatic operated device used in conjunction with a transfer switch to provide a means of directly connecting load conductors to a power source and disconnecting the transfer switch. CMP - 13
100.0 Cable, Optical Fiber, Composite
A cable containing optical fiber and current-carrying electrical conductors.(CMP-16)
100.0 Attachment Plug (Plug Cap)(Plug)
A device that, by insertion in a receptacle, establishes a connection between the conductors of the attached flexible cord and the conductors connected permanently to the receptacle.
100. Switching Device (Regulator Bypass Switch)
A specific device or combination of device designed to by pass a regulator.
100. Festoon Lighting
A string of outdoor lights that is supended between two points. (CMP-18)
100.0 Circuit Integrity (CI) Cable
Cable(s) used for remote control, signaling, or power limited systems that supply critical circuits to ensure survivability for continued circuit operation for a specific time under fire condition. (CMP-3)
100. Surge Protector Device (SPD) Type 4
Component SPDs, including discrete components,as well as assemblies.(cmp-10)
License Renewal and Expiration
Expires 1 yr after issuance. Renewal due 30 days before expiration.
As a general rule regarding movie theaters, all switches for controlling the emergency lighting shall be permitted to be located
In the lobby ref pg 610
Which conductor insulations is oil resistant?
MTW
100. Surge Protector Device (SPD) Type 3
Point of Utilization SPDs.
100.0 Bonding Jumper, Main.
The Connection between the grounded circuit conductor and the equipment grounding conductor, or the supply-side bonding jumper, or both, at the service. (CMP-5)
100. Fuel Cell System
The complete aggregate of equipment used to convert chemical fuel into usable electricity and typically consisting of reformers, stack, power inverter, and auxiliary equipment. CMP-4
Where a conductor is marked RHW-2 on the insulation, what does the -2 represent?
The conductor has a max operating temp of 90 degrees ref pg 152
Circuit breakers rated 100 amperes or less and 1000 volts or less shall have the ampere rating molded, stamped, etched or similarly marked into their handles or escutcheon areas. True or False
True
100. Plenum
a compartment or chamber to which one or more air ducts are connected and that forms a part of the air distribution system.(CMP-3)
100.0 Bonding Jumper, Supply-side.
a conductor installed on the supply side of a service or within a service equipment enclosure(s), or for a separately derived system, that ensures the required electrical conductivity between metal parts required to be electrically connected.(CMP-5)
100.0 Connector, Pressure(Solderless)
a device that establishes a connection between two or more conductors or between one or more conductors and a terminal by means of mechanical pressure and without the use of solder.(CMP-1)
100. intersystem bonding termination
a device that provides a means for connecting inner system bonding conductors for communication systems to the grounding electrode system. CMP - 16
100. Power-limited Tray Cable (PLTC)
a factory assembly of two or more insulated conductors rated at 300 volts, with or without associated bear or insulated equipment grounding conductors, under a non metallic jackets. CMP-3
100. Uninterruptible Power Supply
a power supply used to provide alternating current power to a load for the same. of time in the event of power failure. BMP - 13
100. thermal protectors (as applied to motors)
a protective device for assembly as an integral part of a motor or motor compressor that, when properly applied, protects the motor against interest overheating and due to overload and failure to start. CMP-11
100. Surge Arrester
a protective device for limiting surge voltage by discharging or by passing surge current; it also prevents continue to flow of follow current while remaining capable of repeating these functions and it is designated.
100. electrical datum plane
a specific distance above water level above which electrical equipment can be installed and the electrical connections can be made. (CMP-7)
100. Switch, Motor-Circuit
a switch rated in horsepower that is capable of interrupting the maximum operating overload current of a motor of the same horsepower rating as a switch at the rated voltage. CMP-11
100. Electrical circuit protective system
a system consisting of components and materials intended for installation as protection for specific electrical wiring systems with respect to the disruption of electrical circuit integrity app on exterior fire exposure. (CMP - 16)
100. Equipotential Plane
accessible conductive parts bonded together to reduce voltage radiant in a designated area. (CMP-17)
100. Outline Lighting
an arrangement or incandescent lamps, Electric discharge lighting, or other electrical powered light source to outline or call attention to certain features such as the shape of a building or the decoration of the window. CMP - 18
100. Handhole Enclosures.
an enclosure for use in underground systems, provided with an open or closed bottom, in size to allow personnel to reach into, but not enter for the purpose of installing, operating orman tanning equipment or wiring or both. (CMP - 9)
100. Field Evaluation Body (FEB).
an organization or part of an organization that performs field evaluations of electrical or other equipment. [790,2018](CMP-1)
100. voltage, nominal
and nominal assigned to a circuit or system for the purpose of conveniently designating its voltage class (e.g.,120/240 volts,480Y/277 Volts, 600 Volts).(CMP-1)
100. hoistway
any chef way, hatchway, well hello, or other vertical opening or space in which an elevator or dumbwaiter is designed to operate. (CMP - 12)
All exposed non current carrying metal parts of an information technology system shall _____ or shall be double insulated.
be bonded to the equipment grounding conductor.
Thermostatically controlled switching devices serving as both controllers and disconnecting means for fixed electric space heating equipment shall _____________
be designed so that the circuit cannot be energized automatically after the device has been manually placed in the off position. ref- pg 292
100.0 Copper-Clad aluminum conductors
conductors drawn from a copper clad aluminum rod, with a copper metallurgically bonded to an aluminum core, where the copper forms a minimum of 10 percent of the cross-sectional area of a solid conductor or each strand of a stranded conductor. (CMP - 6)
100.0 DC-to-DC Converter
device that can provide an output DC voltage and current at a higher or lower value than the input DC voltage and current. (CMP - 4)
100. Utilization Equipment
equipment that utilizes electric energy for electronic, electromechanical, chemical, heating, lighting, or similar purposes. CMP - 1
100. Switch, General-Use Snap
form of General use switch constructed so that it can be installed in device boxes or on box covers, or otherwise used in conjunction with wiring systems recognized by this code. (CMP-9)
100. Switch, Isolating
is switch intended for isolating an electrical circuit from the source of power. it has no interrupting rating, and it is intended to be operated only after the circuit has been opened by some other means. (CMP-9)
100.0 selective coordination
localization of overcurrent condition to restrict outages to the Circuit or equipment affected, accomplished by the selection and installation of overcurrent protective devices and their rating or setting for a full range of available overcurrent from overload to the available fault current, and for the full range of overcurrent protective device opening times associated with those overcurrent. (CMP - 10)
In health care facilities, essential electrical systems shall have a MINIMUM
of 2 independent sources of power
100. Qualified Person
one who has skills and knowledge related to the construction and operation of the electrical equipment and installation and has received safety training to recognize and avoid the hazards involved. (CMP-1)
100. Surge Protector Device (SPD) Type 1
permanently connected SPD s intended for installation between the secondary of the service transformer and the line side of the service disconnected overcurrent device.
100. Surge Protector Device (SPD) Type 2
permanently connected SPDs is intended for installations on the load side of the service disconnect overcurrent device, including spds located at the branch.
100. electric power production and distribution networks.
power production, distribution, and utilization equipment and facilities, such as electric utility systems that are connected to premises wiring and are external to and not controlled by an interactive system. (CMP - 13)
Where ungrounded conductors are run in parallel in multiple raceways, the wire type equipment grounding conductor, where used, shall be ______
run in parallel in each raceway ref- pg 132
100. electrical discharge lightning
systems of illumination utilizating fluorescent lamps, high intensity discharge (HID) lamps, or neon tubing. (CMP-18)
100. voltage (of a circuit)
the greatest root means square (rms)(effective) difference of potential between any two conductors of the circuit concerned. CMP - 1
100. Prime Mover
the machine that supplies the mechanical horsepower to a generator. CMP - 13
100.0 demand factor
the ratio of maximum demand of a system or a part of a system, to the total connected load of a system or part of the system under consideration. (CMP - 2)
100. Generating Capacity, inverter
the sum of parallel connected inverter maximum continuous output power at 40 Degrees Calvin in watts or kilowatts. (CMP-4)
