PEC Chapter 4 - Articles 4.6 to 4.9
T-slot
20-ampere _______ receptacle or cord connector permitted to accept 15-ampere attachment plug of same voltage rating.
True
A 125-volt 15- or 20-ampere receptacle that additionally provides Class 2 power (USB) shall be listed and constructed such that the Class 2 circuitry is integral with the receptacle.
does not
A single receptacle, or a duplex receptacle for two appliances, located within the dedicated space for each appliance that, in normal use, is not easily moved from one place to another and that is cord-and-plug-connected ____ require tamper-resistant receptacles.
True
All 15- and 20-ampere, 125-and 250-volt nonlocking receptacles in damp and wet locations shall be a listed weather-resistant type
True
An installation of receptacles suitable for wet locations shall also be considered suitable for damp locations
True
Dormitory units, Assisted living facilities shall have listed tamper-resistant receptacles 15 and 20 amperes, 125 and 250 volts.
True
Nongrounding receptacles used for replacements does not require tamper-resistant.
listed and identified
Receptacles supported by a cover must be held rigidly to the cover with one screw but must be __________.
0.76 mm, 1.02 mm, 2.54 mm. Note that this is similar to switches
Thickness of receptacle faceplates are the following: If ferrous, _____ If nonferrous, _____ If insulating material, _____
True
When existing receptacles are replaced in locations where GFCI protection is required, the replacement receptacles must be GFCI protected. If not enough size, GFCI-protected grounding type receptacle is permitted.
Protected from the weather
located under roofed open porches, canopies, marquees, and the like, and will not be subjected to a beating rain or water runoff.
Flanged surface inlet
prevents exposing the cord prongs when the plug is partially inserted. So when you hit the end of the cord and the device unplugs itself, there is no chance for things to contact the prongs while they are energized.
True
15- and 20-ampere, 125-through 250-volt receptacles installed in a wet location and subject to routine high-pressure spray washing shall be permitted to have an enclosure that is weatherproof when the attachment plug is removed.
True
A flanged surface inlet shall be installed such that the prongs, blades, or pins are not energized unless an energized cord connector is inserted into it.
Outlet Box Hood
A housing shield intended to fit over a faceplate for flush-mounted wiring devices. It does not serve to complete the electrical enclosure; it reduces the risk of water coming in contact with electrical components within the hood.
attachment plug cap not inserted and receptacle covers closed
A receptacle installed outdoors in a location protected from the weather or in other damp locations shall have an enclosure for the receptacle that is weatherproof when the receptacle is covered or ________
"controlled"
All nonlocking-type, 125-volt, 15- and 20-ampere receptacles that incorporate control features that remove power from the receptacle for the purpose of energy management or building automation, shall be permanently marked with the symbol shown and the word _____________
"extra-duty."
An outlet box hood installed for this purpose of protecting receptacles in wet locations shall be listed and shall be identified as _________. Other that provides this protection need not be marked.
A, B, C
Arrangement on 3-phase buses shall be _______ from front to back, top to bottom, or left to right, as viewed from the front of the switchboard, switchgear, or panelboard
4.8
Article number for Switchboards, Switchgear, and Panelboards
4.6
Article number for receptacles, cord connectors, and attachment plugs
non locking connectors
As the name suggests, straight blades or ___________ are designed to be pulled out of the receptacles easily
True
Attachment plug ejector mechanisms shall not adversely affect engagement of the blades of the attachment plug with the contacts of the receptacle.
Child Care Facility
Building or structure, for educational, supervisory, or personal care services for more than four children 7 years old or less
True
Business offices, corridors, waiting rooms and the like in clinics, medical and dental offices, and outpatient facilities, subset of assembly occupancies (100 people above) to include places of awaiting transportation, gymnasiums, skating rinks, and auditoriums shall have listed tamper-resistant receptacles 15 and 20 amperes, 125 and 250 volts.
True
Child care facilities, Preschools and education facilities shall have listed tamper-resistant receptacles 15 and 20 amperes, 125 and 250 volts.
True
Conductors shall be permitted to travel horizontally through vertical sections of switchboards and switchgear where such conductors are isolated from busbars by a barrier.
True
Construction of Attachment Plugs and Cord Connectors shall no exposed current-carrying parts except the prongs, blades, or pins, obviously because that are what you will plug
polarity, grounding system, and nominal voltage
Direct-current ungrounded buses shall be permitted to be in any order. Arrangement shall be field marked as to _______________.
True
Dwelling units, including attached and detached garages and accessory buildings to dwelling units, and common areas of multifamily dwellings, guest rooms and guest suites of hotels, motels, and their common areas shall have listed tamper-resistant receptacles 15 and 20 amperes, 125 and 250 volts.
True
Each switchboard, switchgear, or panelboard, if used as service equipment, shall be provided with a main bonding jumper or the equivalent placed within the panelboard or one of the sections of the switchboard or switchgear for connecting the grounded service conductor on its supply side to the switchboard, switchgear, or panelboard frame. Except for high-impedance grounded neutral systems
True, memorize this
Equipment within the same single section or multisection switchboard, switchgear, or panelboard as the meter on 3-phase, 4-wire, delta-connected systems shall be permitted to have the same phase configuration as the metering equipment.
B phase
For buses in switchboards, switchgear, and panelboards, the _______ shall be that phase having the higher voltage to ground on 3-phase, 4-wire, delta-connected systems.
True
For conductors and busbars in switchboards, switchgear, and panelboards barriers shall be there to prevent inadvertent contact by persons or maintenance equipment while servicing load terminations
True
For conductors and busbars in switchboards, switchgear, and panelboards, they shall be free from physical damage and shall be held firmly in place
True
For identification of every circuit in panelboard, switchboard and switchgear, no circuit shall be described in a manner that depends on transient conditions of occupancy
Branch circuit
For method of grounding, the ECG contact of receptacle shall be connected to the equipment grounding conductor of the circuit supplying the receptacle or cord connector. _________ shall provide this where we connect the ECG.
inserted or removed, not inserted
For other receptacles, not 15 and 20 ampere, installed in a wet location, where the product intended to be plugged into it is not attended while in use, shall have an enclosure that is weatherproof with the attachment plug cap __________. If attended while in use such as portable devices, permitted to be weatherproof only when _________.
75 mm
For panelboards, switchboard, and switchgear, the conduit or raceways, including their end fittings, shall not rise more than ______ above the bottom of the enclosure.
integral
For receptacle faceplate with integral night light and/or USB charger, listed and constructed such that the night light and/or Class 2 circuitry is ___________ with the flush device cover plate.
True
For replacement receptacles, arc-fault circuit-interrupter type and ground-fault circuit-interrupter type receptacles shall be installed in a readily accessible location. This is for monthly testing.
True
For switchboards, switchgears and panelboards every circuit and circuit modification shall be legibly identified as to its clear, evident, and specific purpose or use. Spare positions that contain unused overcurrent devices or switches shall be described accordingly. Permitted to be handwritten
True
For switchboards, switchgears and panelboards, the identification of every circuit including spares shall be located on the face, inside of, or in an approved location adjacent to the panel door in the case of a panelboard and at each switch or circuit breaker in a switchboard or switchgear. Permitted to be handwritten
"Caution _____ Phase Has _____ Volts to Ground"
For switchboards, switchgears, and panelboards containing a 4-wire, delta-connected system where the midpoint of one phase winding is grounded shall be legibly and permanently field marked as follows:
"CAUTION: HIGH-IMPEDANCE GROUNDED NEUTRAL AC SYSTEM OPERATING — _____ VOLTS BETWEEN CONDUCTORS AND MAY OPERATE — _____ VOLTS TO GROUND FOR INDEFINITE PERIODS UNDER FAULT CONDITIONS"
For switchboards, switchgears, and panelboards containing a high-impedance grounded neutral system, marking shall be as follows:
CAUTION: DC SYSTEM OPERATING — _____ VOLTS BETWEEN CONDUCTORS AND MAY OPERATE — _____ VOLTS TO GROUND FOR INDEFINITE PERIODS UNDER FAULT CONDITIONS
For switchboards, switchgears, and panelboards containing a resistive connection between current-carrying conductors and the grounding system to stabilize voltage to ground, marking shall be as follows:
CAUTION: UNGROUNDED DC SYSTEM OPERATING — _____ VOLTS BETWEEN CONDUCTORS
For switchboards, switchgears, and panelboards containing ungrounded DC systems, marking shall be as follows:
"Caution Ungrounded System Operating — _____ Volts Between Conductors"
For switchboards, switchgears, and panelboards containing ungrounded ac systems marking shall be as follows:
True
For the connection of attachment plugs, they shall be installed so that their prongs, blades, or pins are not energized unless inserted into an energized receptacle or cord connectors
True
GFCI protection functions properly on a 2-wire circuit without an equipment grounding conductor because the circuit's equipment grounding conductor serves no role in the operation of a GFCI device.
True
Grounding type receptacles, attachment plugs, or cord connectors shall be designed so that ECG is connected first before hot wires.
True
Grounding type receptacles, attachment plugs, or cord connectors shall be provided with one fixed grounding pole in addition to the circuit poles. For GFCI, less than 150 volts, this contacting pole is permitted to be movable, self-restoring type.
green hexagonal head screw, green pressure wire connector, if not visible marked with G (green) or GR (ground) the conductor hole
Grounding type receptacles, attachment plugs, or cord connectors shall have means of connecting from grounding pole to EGC, the terminal shall be designated by
True
Grounding-type attachment plugs shall be used only with a cord having an equipment grounding conductor. Cannot be used with two wires only.
"GFCI Protected" and "No Equipment Ground"
If an equipment grounding conductor does not exist in the outlet box, replacement receptacles can be a GFCl-protected grounding-type receptacle if the receptacle or the cover plate is marked ______________. This GFCI protection could be a GFCI circuit breaker.
"No Equipment Ground."
If an equipment grounding conductor does not exist in the outlet box, replacement receptacles can be a GFCl-type receptacle if the receptacle or the cover plate is marked _________________
True
If an equipment grounding conductor does not exist in the outlet box, replacement receptacles can be a nongrounding-type receptacle.
True
If multiple receptacles in one box, marking shall denote which contact devices are controlled.
True
In seating areas or waiting areas, receptacles shall not be installed in a face-up position unless the receptacle is part of an assembly listed as a furniture power distribution unit, as household furnishings or as commercial furnishings, as a receptacle assembly or GFCI for countertop applications, or just installed in a listed floor box
True
Installed in a nonmetallic box, a metal faceplate shall be permitted if the box contains a feature or accessory that permits the connection of the faceplate to the equipment grounding conductor.
Flanged surface inlet
It avoids ingress of conductive materials, like wet grass or salted snow/slush (perhaps your case) and avoid egress of sparks in explosion sensitive areas like gas stations, oil rigs etc...
300 volts
Like in switches, a receptacle shall not be grouped or ganged in enclosures with other receptacles, snap switches, or similar devices, unless the voltage between adjacent devices does not exceed __________, or in enclosures with identified, securely installed barriers.
20 amperes, CO/ALR
Like in switches, receptacles rated _________ or less and designed for the direct connection of aluminum conductors shall be marked __________.
32 threads per in
Like switches, screws used for attaching a receptacle to a box must be a type provided with a listed receptacle or be machine screws having ___________
True
Load terminals for field wiring, including grounded circuit conductor load terminals shall be located so that it is not necessary to reach across or beyond the uninsulated ungrounded bus in order to connect to it.
True. This is used for nongrounding type receptacle requiring grounding equipment.
Means for connecting grounding pole to ECG for adapters shall be a green-colored rigid ear, lug, or similar device. This adapter shall be polarized. Rigid is a must because some adapters have dangling ECG that might contact the hot wire of adjacent receptacles.
True
Means for connecting grounding pole to ECG specifically to hexagonal headed, this shall not be readily removable, if so, area adjacent shall be marked
True
No receptacle shall be installed so as to require the insertion of an energized attachment plug as its source of supply. Attachment plug shall be the thing to be supplied not the other way around.
True, to prevent accidental contact
Other than the required interconnections and control wiring, only those conductors that are intended for termination in a vertical section of a switchboard or switchgear shall be located in that section
True
Receptacle assemblies and GFCI receptacle assemblies listed for work surface or counter-top applications shall be permitted to be installed in work surfaces.
True
Receptacle assemblies for installation in countertop surfaces shall be listed for countertop applications.
True
Receptacle faceplates, the one you cover for yoke, shall completely cover the opening and seat against the mounting surface.
0.4 mm
Receptacle faces shall be flush with or project from faceplates of insulating material and shall project a minimum of _____ from metal faceplates. (Listed faceplates that cover the receptacle face is permitted) This is done to avoid short circuit
15 amperes, 125 volts, or 15 amperes, 250 volts, lampholders
Receptacles and cord connectors shall be rated not less than _____________, and shall be of a type not suitable for use as _______
True
Receptacles and cord connectors that have equipment grounding conductor contacts shall have those contacts connected to an equipment grounding conductor
True
Receptacles connected to circuits that have different voltages, frequencies, or types of current (ac or dc) on the same premises shall be of such design that the attachment plugs used on these circuits are not interchangeable.
True
Receptacles in outlet boxes that are set back from the finished surface, must be installed so the mounting yoke of the receptacle is held rigidly to the finished surface
orange triangle
Receptacles incorporating an isolated equipment grounding conductor (reduction of electromagnetic interference) shall be identified by an ______ located on the face.
15- and 20-
Receptacles installed on ____________ ampere branch circuits shall be of the grounding type
1700 mm
Receptacles located more than ________ above the floor or part of a luminaire or appliance, does not require tamper-resistant receptacles.
True
Receptacles mounted in outlet boxes that are flush with the finished surface must be installed so the mounting yoke of the receptacle is held rigidly against the outlet box or raised box cover
whether or not the attachment plug cap is inserted
Receptacles of 15 and 20 amperes, 125 and 250 volts installed in a wet location shall have an enclosure that is weatherproof when ___________
True
Receptacles shall be enclosed so that live wiring terminals are not exposed to contact.
face-up
Receptacles shall not be installed in a ________ position in or on countertop surfaces or work surfaces unless listed for countertop or work surface applications. This position is not even permitted under sink.
True
Receptacles shall not be installed within or directly over a bathtub or shower stall
two
Receptacles supported by a cover must be held rigidly to the cover with at least ____ screws.
manufacturer's name or identification and voltage and ampere ratings
Receptacles, Attachment Plugs, Cord Connectors, and Flanged Surface Devices shall be marked with the ________________
True
Receptacles, cord connectors and attachment plugs shall be constructed to avoid plugging other voltage and frequency
True
Standpipes of floor receptacles shall allow floor-cleaning equipment to be operated without damage to receptacles.
Isolated Ground (IG)
The __________ is a type of equipment ground that, in theory, reduces interference experienced by electronics and instrumentation from radio frequency (RF) noise, by connecting that equipment directly to the grounding terminal of the service equipment, without ever making contact with another metal component
True
The arrangement of conductors and busbars in switchboards, switchgear and panelboards shall be such as to avoid overheating due to inductive effects.
True
The cover for wire terminations in attachment plugs or cord connectors shall be a part that is essential for the operation of an attachment plug or connector
True
The enclosure for a receptacle installed in an outlet box flush-mounted in a finished surface in damp and wet locations shall be made weatherproof by means of a weatherproof faceplate assembly that provides a watertight connection between the plate and the finished surface.
True
The installation of grounding-type receptacles shall not be used as a requirement that all cord-and plug-connected equipment be of the grounded type. This means that the design does not reject ungrounded attachment plugs.
True
The marking controlled is not required for wall switch controlled for receptacles for room lighting
True
Unlike in identification of every circuit in panelboards, switchboards, and switchgear, the required marking for supplied by feeders where we indicate each device or equipment where the power originates, shall not be handwritten.
True
When existing receptacles are replaced in locations where tamper resistance is required, the replacement receptacle(s) must be listed tamper resistant
True
When existing receptacles are replaced in locations where weather resistance is required, replacement receptacles must be weather resistant
True
When mounted on portable and vehicle-mounted generator sets and generators, or for replacement receptacles, the equipment grounding conductor contacts shall be permitted not to be connected to an EGC.
200, 250
Where conduits or other raceways enter at the bottom, the wiring space shall not be less than _____ if insulated busbars, ____ if noninsulated busbars where the conduit or raceways enter or leave the enclosure below the busbars, their supports, or other obstructions
