ATP Chapter 2 Branch Circuits & Feeders
Article 210 of the NEC covers the general requirements for branch circuits not over _____Vac and _____Vdc.
210 1000Vac & 1500Vdc
Ungrounded Conductors Tapped from Grounded Conductors Two or more ungrounded conductors of two wire AC & DC systems for specific applications listed in chapter 4 are allowed to be tapped from circuits with what _______?
210.10 grounded conductor
Branch Circuit Requirements The one additional 20A branch circuit for the garage does not allow for outside receptacles to be installed on it? True or False
210.11 False
Branch Circuit Requirements The four areas requiring branch circuits shall have no other outlets on the circuit besides the ones intended for the area except which area? -Small Appliances -Laundry -Bathroom -Garage
210.11 Small Appliances
Branch Circuit Requirements What are the 4 dwelling unit areas require additional branch circuits for receptacles outlined in 210.11?
210.11 Small Appliances- 2 or more 20A circuits Laundry- 1 or more 20A circuit Bathroom- 1 or more 20A circuit Garage- 1 or more 20A circuit
AFCI Protection Is a combination type breaker a branch/feeder type AFCI?
210.12 No, a branch/feeder type AFCI only detects parallel faults.
AFCI Protection Does a combination type breaker mean ground-fault and arc-fault protection?
210.12 No, it is meant that a combo breaker can detect parallel and series faults arc faults.
AFCI Protection What are the 6 means of AFCI protection?
210.12(A) 1.) AFCI combo breaker 2.) First generation style branch/feeder style AFCI breaker 3.) Supplemental arc protection breaker & outlet branch circuit type AFCI. Branch circuit shall be continuous from branch OCPD to AFCI device and no more than 50ft for 14AWG and 70ft for 12AWG. The first outlet box must also be labeled. 4.) AFCI at first outlet. Branch circuit shall be continuous from branch OCPD to AFCI device and no more than 50ft for 14AWG and 70ft for 12AWG. The first outlet box must also be labeled. The combination of OCPD breaker and AFCI outlet shall be identified of meeting the requirements for such use. 5.) AFCI at first outlet and listed metal raceway, metal wireway, metal auxiliary gutter or type MC or type AC in accordance with 250.118 between outlet and OCPD. 6.) AFCI at first outlet and metal conduit, nm conduit, tubing or type MC cable is encased in not less than 2 inches of concrete for the portion of the branch circuit between the OCP and AFCI outlet.
AFCI Protection Where a listed metal or nonmetallic conduit or tubing or Type MC cable is encased in not less than ____in of concrete for the portion of the branch circuit between the branch-circuit overcurrent device and the first outlet, it shall be permitted to install a listed outlet branch-circuit-type AFCI at the first outlet to provide protection for the remaining portion of the branch circuit. 2 4 6 12
210.12(A) 2in
AFCI Protection The maximum length of the branch-circuit wiring from the branch-circuit overcurrent device to the first outlet shall not exceed _____ft for a 14 AWG conductor or _____ft for a 12 AWG conductor.
210.12(A) 50ft for 14AWG 70ft for 12AWG
AFCI Protection What are the 12 areas in Dwelling Units listed in 210.12(B) of the NEC that require AFCI protection?
210.12(B) (1) Kitchens (2) Family rooms (3) Dining rooms (4) Living rooms (5) Parlors (6) Libraries (7) Dens (8) Bedrooms (9) Sunrooms (10) Recreation rooms (11) Closets (12) Hallways (13) Laundry areas (14) Similar areas
AFCI Protection What are the two exceptions for installing AFCI in dwellings?
210.12(B) 1.) Fire Alarm Systems which the branch circuit needs to be installed in a metal raceway, metal gutter, steel armored cable, or type MC or AC cable meeting requirements of 250.118. 2.) Outlets for Arc welding equipment until January 1, 2025
AFCI Protection Name three areas where AFCI is not required in a dwelling
210.12(B) 1.) Garages/Unfinished Spaces/Storage Rooms/Attics 2.) Outdoor area 3.) Bathrooms
AFCI Protection What size branch circuits does 210.12(B) outline? 10A 15A 20A 30A 50A
210.12(B) 10,15,20
AFCI Protection Is AFCI protection required in bathrooms?
210.12(B) No
AFCI Protection Is AFCI protection required in garages?
210.12(B) No
AFCI Protection Dorm Units What is the one area in 210.12 that is AFCI is required in Dorm units but not dwelling units?
210.12(C) Dorm Units
AFCI Protection Other Occupancies All 120-volt, single-phase, 10-, 15-, and 20-ampere branch circuits supplying outlets or devices installed in the following locations shall be protected by any of the means described in 210.12(A)(1) through (A)(6):
210.12(D) (1) Guest rooms and guest suites of hotels and motels (2) Areas used exclusively as patient sleeping rooms in nursing homes and limited-care facilities (3) Areas designed for use exclusively as sleeping quarters in fire stations, police stations, ambulance stations, rescue stations, ranger stations, and similar locations
AFCI Protection Modifications, extensions or replacements on existing wiring for branch circuits shall be protected by AFCI how? 2 listed answers
210.12(E) -Any of the methods in 210.12(A)(1) through (A)(6) -Listed outlet branch-circuit type AFCI located at the first receptacle outlet of the existing branch.
AFCI Protection AFCI protection shall not be required where the extension of the existing branch-circuit conductors is not more than ____ft and does not include any additional outlets or devices, other than splicing devices. This measurement shall not include the conductors inside an enclosure, cabinet, or junction box. 3 6 12 50
210.12(E)Exception 6ft
Ground Fault Equipment Protection Each branch-circuit disconnecting means rated _____ amperes or more and installed on solidly grounded wye electrical systems of more than 150 volts to ground, but not exceeding 1000 volts phase-to-phase, shall be provided with ground-fault protection of equipment in accordance with 230.95.
210.13 1000A
GFCI and AFCI devices are allowed to be reconditioned True or False?
210.15 False
Branch Circuit Requirements Hotels, Motels and Assisted Living Facilities must have branch circuits that meet all the requirements as ________
210.17 Dwelling Units
Branch Circuit Rating What are the ratings of other than individual branch circuits?
210.18 10, 15, 20, 30, 40, 50
Branch Circuit Rating Multioutlet branch circuits greater than ____ amperes shall be permitted to supply nonlighting outlet loads in locations where conditions of maintenance and supervision ensure that only qualified persons service the equipment.
210.18 50
Branch Circuit Rating Can branch circuits rated at 10A supply receptacle outlets?
210.18 No
Branch Circuit Rating The rating of a branch circuit is determined by what?
210.18 Overcurrent protective device (OCPD), not by the ampacity of the circuit conductors
Branch Conductors General- Minimum Ampacity & Size Conductors of branch circuits must be able to supply power to loads without overheating. The minimum conductor size and ampacity must be based on the larger of the following criteria:
210.19(A) 1.) The noncontinuous load plus 125 percent of the continuous load (If equipment both supplying equipment and utilization equipment is rated for 100%... No need to factor in 125%... just 100% of continuous and non continuous. 2.) Not less than the maximum load to be served after the application of any adjustment or correction factors Exceptions to above are if the conductors are installed in boxes where pressure connector terminations are rated for 100% use then take 100% of continuous and non continuous.
Branch Circuits with More than One Receptacle Conductors of branch circuits supplying more than one receptacle for cord-and-plug-connected portable loads shall have an ampacity of not less than the rating of the branch circuit. True or False
210.19(B) True
Household Ranges & Cooking Appliance Branch Circuit Conductors For ranges of _____ kW or more rating, the minimum branch-circuit rating shall be ____ amperes.
210.19(C) 8.75KW & 40A
Tapped Conductors on Household Ranges & Cooking Appliance Branch Circuits Are conductors allowed to be tapped of circuits intended for cooking appliances?
210.19(C) Yes
Tapped Conductors on Household Ranges & Cooking Appliance Branch Circuits Conductors tapped from a branch circuit not exceeding ____ amperes supplying electric ranges, wall-mounted electric ovens, and counter-mounted electric cooking units shall have an ampacity of not less than ____ amperes and shall be sufficient for the load to be served. These tap conductors include any conductors that are a part of the leads supplied with the appliance that are smaller than the branch-circuit conductors. The taps shall not be longer than necessary for servicing the appliance.
210.19(C) Exception 1 50 & 20
Tapped Conductors on Household Ranges & Cooking Appliance Branch Circuits The neutral conductor of a 3-wire branch circuit supplying a household electric range, a wall-mounted oven, or a counter-mounted cooking unit shall be permitted to be smaller than the ungrounded conductors where the maximum demand of a range of 83⁄4 kW or more rating has been calculated according to Column C of Table 220.55, but such conductor shall have an ampacity of not less than ____ percent of the branch-circuit rating and shall not be smaller than ____ AWG.
210.19(C) Exception 2 70% 10AWG
Branch Circuit Conductors for other Loads Minimum size conductor for other loads on branch circuits is 14AWG. What are the two exceptions?
210.19(D) 1.) Tap conductors 2.) Fixture wires and flexible cords
Branch Circuit Conductors for other Loads Branch-circuit conductors that supply loads other than those specified in 210.3 and other than cooking appliances as covered in 210.19(C) shall have an ampacity sufficient for the loads served and shall not be smaller than ____ AWG.
210.19(D) 14AWG
Branch Circuit Conductors for other Loads Minimum size conductor for other loads on branch circuits is_____AWG.
210.19(D) 14AWG
Branch Circuit Tap Conductors for other Loads Individual lampholders or luminaires with taps extending not longer than ______in beyond any portion of the lampholder or luminaire are allowed to be smaller than 14AWG for tap conductors
210.19(D) 18in
Branch Circuit Tap Conductors for other Loads Infrared lamp industrial heating appliances are allowed to be less than 14AWG for tap conductors. True or False?
210.19(D) True
Overcurrent Protection of Branch Circuits For circuits not exceeding 1000Vac or 1500Vdc, OCPD shall have a rating or setting that complies with what? QTY4
210.20 1.) Continuous and non-continuous loads... non continuous plus 125% of continuous. If equipment is rated for 100% of rating then no need to take 125%. 2.) Conductor protection shall be in accordance with 240.4. Flexible cords and fixture wires shall be in accordance with 240.5 3.) Equipment OCPD shall not exceed that specified in table 240.3. 4.) Rating of OCPD shall not exceed that specified in 210.21.
Outlet (Receptacles/Lampholders) Devices on Branch Circuits Outlets shall have an ampere rating not less than the load to be served and shall comply with what other two provisions?
210.21 1.) If branch circuit has a rating greater than 20A, lampholders shall be of the heavy duty type. A heavy duty lampholder shall have a rating of not less than 660W if of the admedium type or not less than 750W for any other type. 2.) If only one receptacle is installed on a branch circuit, the rating of the receptacle shall not be less than that of the branch circuit unless on a welding circuit, however if more than one than there are exceptions or portable motor circuit. If more than one receptacle then it is permissible to use a 15A receptacle on a 20A in accordance with 210.21(B)(3). A branch circuit with two or more receptacles/outlets shall not supply a total plug and connect load that exceeds values in Table 210.21(B)(2). Two or more receptacles on a branch circuit shall not be rated less than values in Table 210.21(B)(3) or if greater than 50 A the receptacle rating shall not be less than the branch circuit rating. Lastly, range receptacles shall be rated based on a single range demand load in Table 220.55.
Outlet (Receptacles/Lampholders) Devices on Branch Circuits Where connected to a branch circuit having a rating in excess of 20 amperes, lampholders shall be of the heavy-duty type. A heavy-duty lampholder shall have a rating of not less than _____ watts if of the admedium type, or not less than _____ watts if of any other type.
210.21 660W & 750W
Permissible Loads, Individual Branch Circuits An individual branch circuit shall be permitted to supply any load for which it is rated, but in no case shall the load exceed the branch-circuit ampere rating. True or False
210.22 True
Permissible loads on multiple outlet branch circuits A 10A branch circuit shall be permitted to supply the following loads: -Lighting Outlets -Dwelling Unit exhaust fans -Receptacle Outlets -Fixed appliances, except as permitted for individual branch circuits -Garage door openers -Laundry equipment -Gas Fireplace unit supplied by an individual branch circuit
210.23 Allowed -Lighting Outlets -Dwelling Unit exhaust fans -Gas Fireplace unit supplied by an individual branch circuit Not Allowed -Receptacle Outlets -Fixed appliances, except as permitted for individual branch circuits -Garage door openers -Laundry equipment
Permissible loads on multiple outlet branch circuits A 15- or 20-Ampere branch circuit shall be permitted to supply lighting, outlets, lighting units or other utilization equipment, or any combination of them as long as they comply with 210.23(B)(1) & (2) which state what?
210.23(B)(1) & (2) 1. Cord & Plug Connected loads not fastened into place shall not exceed 80% of the branch circuit rating 2. Utilization equipment fastened into place, except luminaires, shall not exceed 50% of the branch circuit rating where, lighting units, cord & plug equipment not fastened into place, or both, are also supplied. (Does not apply to a branch only supplying fastened in place utilization equipment).
Permissible loads on multiple outlet branch circuits A ____-ampere branch circuit shall be permitted to supply fixed lighting units with heavy-duty lampholders in other than a dwelling unit(s) or utilization equipment in any occupancy. The rating of any one cord-and-plug-connected utilization equipment shall not exceed ____ percent of the branch-circuit ampere rating.
210.23(C) 30A & 80%
Permissible loads on multiple outlet branch circuits A 40A or 50A Branch Circuit is permitted to supply what time of equipment listed in 210.23(D)?
210.23(D) -Cooking appliances that are fastened into place in any occupancy. -In other than dwellings, fixed lighting units with heavy duty lampholders, infrared heating units, or other utilization equipment.
Permissible loads on multiple outlet branch circuits Branch circuits larger than ____A shall supply only nonlighting outlet loads.
210.23(E) 50A for outlets where maintenance/supervision is carried out by qualified persons (industrial facilities)
Branch Circuit Requirements- Summary Which article provides a table summarizing the general requirements for branch circuits?
210.24
Branch Circuits in Buildings with more than one Occupancy Branch circuits in each dwelling unit shall supply only loads within that dwelling unit or loads associated only with that dwelling unit. True or False
210.25 True
Common Area Branch Circuits Branch circuits installed for lighting, central alarm, signal, communications, or other purposes for public or common areas of a two-family dwelling, a multifamily dwelling, or a multi-occupancy building shall not be supplied from equipment that supplies an individual dwelling unit or tenant space. True or False
210.25 True A dedicated panel shall be installed for common areas.
List the 9 specific-purpose branch circuits in Table 3 of 210.3 that amend or supplement the requirements in Article 210.
210.3 -Air-conditioning and refrigerating equipment 440.6, 440.31, and 440.32 -Busways 368.17 -Central heating equipment other than fixed electric space-heating equipment 422.12 -Fixed electric heating equipment for pipelines and vessels 427.4 -Fixed electric space-heating equipment 424.4 -Fixed outdoor electrical deicing and snow-melting equipment 426.4 -Infrared lamp industrial heating equipment 422.48 and 424.3 -Motors, motor circuits, and controllers 430 -Switchboards and panelboards 408.52
Article 210 of the NEC covers the general requirements for branch circuits, however Chapter ___ also covers specific-purpose branch requirements that amend or supplement the requirements of this article.
210.3 Mostly Chapter 4 Equipment for general use and busways in Chapter 3
Multiwire Branch Circuits Multiple circuits can be fed on one multiwire conductor but what are the requirements of doing so? qt4
210.4(A) 1.) Fed from the same equipment (panel) that contains the overcurrent protection devices except permitted in 300.3(B)(4) 2.) Each circuit shall be provided by a means that simultaneously disconnects all ungrounded conductors at the point where the branch circuit originates. 210.4(B) 3.) Shall supply only line to neutral loads. 210.4(C) 4.) Ungrounded and grounded circuit conductors shall be grouped in accordance to 200.4(B). 210.4(D)
Identification of Branch Circuits The grounded conductor of a branch circuit 6AWG or smaller shall be identified in accordance with 200.6. What are the 8 different ways of identifying?
210.5(A) (1) A continuous white outer finish. (2) A continuous gray outer finish. (3) Three continuous white or gray stripes along the conductor's entire length on other than green insulation. (4) Conductors with white or gray insulation and colored tracer threads in the braid identifying the source of manufacture. (5) A single-conductor, sunlight-resistant, outdoor-rated cable used as a solidly grounded conductor in photovoltaic power systems, as permitted by 690.31(C)(1), shall be identified at the time of installation by markings at terminations in accordance with 200.6(A)(1) through (A)(4). (6) The grounded conductor of a mineral-insulated, metal-sheathed cable (Type MI) shall be identified at the time of installation by a distinctive white or gray marking at its terminations The marking shall encircle the conductor insulation. (7) Fixture wire shall comply with the requirements for grounded conductor identification in accordance with 402.8. (8) For aerial cable, the identification shall comply with one of the methods in 200.6(A)(1) through (A)(5), or by means of a ridge located on the exterior of the cable so as to identify it.
Branch Circuits from different voltage systems i.e. 120/208V, 277/480V must be identified and properly labeled at each terminal, connection and splice points in accordance with 210.5(C)(1)(a) and (C)(1)(b). What is the one exception?
210.5(C) If voltage system already exists we only need to label the new system at every terminal, connection and splice point. Also need the label to include "other unidentified systems exist on the premises."
Branch Circuits Supplied from DC Systems The negative polarity conductor fed from a DC system operating at more than 60V and has conductors 6AWG or smaller must be identified how? QTY 4
210.5(C)(2) (1) A continuous black outer finish (2) A continuous black stripe durably marked along the conductor's entire length on insulation of a color other than green, white, gray, or red (3) Imprinted minus signs (-) or the word NEGATIVE or NEG durably marked on insulation of a color other than green, white, gray, or red and repeated at intervals not exceeding 610 mm (24 in.) in accordance with 310.8(B) (4) An approved permanent marking means such as sleeving or shrink-tubing that is suitable for the conductor size, at all termination, connection, and splice points, with imprinted minus signs (-) or the word NEGATIVE or NEG durably marked on insulation of a color other than green, white, gray, or red
Branch Circuits Supplied from DC Systems Branch circuits operating at ____Vdc or higher with ungrounded conductors of _____AWG and smaller must comply with 210.5(C)(2)(a) & (b).
210.5(C)(2) 60Vdc 6AWG
Branch Circuits Supplied from DC Systems A branch circuit operating at 24VDC must comply with 210.5(C)(2)? True or False?
210.5(C)(2) False
Required Outlets A cord connector that is supplied by a permanently connected cord pendant shall not be considered a receptacle outlet in Article 210.50(A). Ture or False
210.50(A) False
Required Outlets Appliance receptacle outlets installed in a dwelling unit for specific appliances, such as laundry equipment, shall be installed within ____ft of the intended location of the appliance.
210.50(C) 6ft
Dwelling Unit Receptacle Outlets Section 210.52 provides requirements for 125-volt, 15- and 20-ampere receptacle outlets. The receptacles required by this section shall be in addition to any of the 4 listed receptacles. What are these 4 receptacles?
210.52 (1) Part of a luminaire or appliance, or (2) Controlled by a listed wall-mounted control device in accordance with 210.70(A)(1), Exception No. 1, or (3) Located within cabinets or cupboards, or (4) Located more than 1.7 m (5.5 ft) above the floor
Dwelling Unit Receptacle Outlets A receptacle mounted ____ft above the floor does not count as a receptacle to be counted for 6ft of wall spacing.
210.52 5.5ft
Dwelling Unit Receptacle Outlets Receptacles mounted inside cabinets count as a receptacle to be counted for 6ft of wall spacing. True or False
210.52 Fale
Dwelling Unit Receptacle Outlets Is a receptacle outlet with both halves wired to a switch count as the required outlet for wall space?
210.52 No if both halves are connected to a switch, another receptacle has to be installed. You can wire half the receptacle to a switch and the other right to the panel. This counts as a receptacle when doing the wall spacing.
Dwelling Unit Receptacle Outlets Electric Baseboard heaters with factory-installed receptacles shall be permitted as the required outlet or outlets for the wall space. The heater shall or shall not be connected to the receptacles?
210.52 Shall not
Dwelling Unit Receptacle Outlets Receptacles installed in every kitchen, family room, dining room, living room, parlor, library, den, sunroom, bedroom, recreation room, or similar room or area of dwelling units shall be installed such that no point measured horizontally along the floor line of any wall space is more than ____ft from a receptacle outlet.
210.52(A)(1) 6ft
Dwelling Unit Receptacle Outlets When determining required receptacles, a wall space shall include the following: qty
210.52(A)(2) (1) Any space 600 mm (2 ft) or more in width (including space measured around corners) and unbroken along the floor line by doorways and similar openings, fireplaces, stationary appliances, and fixed cabinets that do not have countertops or similar work surfaces (2) The space occupied by fixed panels in walls, excluding sliding panels (3) The space afforded by fixed room dividers, such as freestanding bar-type counters or railings
Dwelling Unit Receptacle Outlets Receptacle outlets in or on floors shall not be counted as part of the required number of receptacle outlets unless located within 450 mm ____in of the wall.
210.52(A)(3) 18in
Dwelling Unit Receptacle Outlets Receptacles installed in countertops and similar workplaces count as required outlets along wall spaces? True or False
210.52(A)(4) False
Dwelling Unit Receptacle Outlets Receptacles installed in the kitchen, pantry, breakfast room, dining room or similar areas utilized for all wall and floor receptacles, all countertop outlets and receptacles for refrigerators shall all be fed from what circuit(s)?
210.52(B)(1) 2 or more small appliance circuits. These shall not serve any other receptacles
Dwelling Unit Receptacle Outlets No other receptacles are permitted on the 2 or more small appliance circuits except what two pieces of equipment?
210.52(B)(2) 1.) Electric Clock in any of the rooms listed in 210.52 2.) Igniter for gas fired appliances
Dwelling Unit Receptacle Outlets A small appliance branch circuit is permitted to supply more than one kitchen. True or False?
210.52(B)(3) False
Dwelling Unit Receptacle Outlets In kitchens, pantries, breakfast rooms, dining rooms, and similar areas of dwelling units, receptacle outlets for countertop and work surfaces that are _____in or wider shall be installed in accordance with 210.52(C)(1) through (C)(3) and shall not be considered as the receptacle outlets required by 210.52(A).
210.52(C) 12in
Dwelling Unit Receptacle Outlets Receptacle outlets shall be installed so that no point along the wall line is more than ___in measured horizontally from a receptacle outlet in that space. The location of the receptacles shall be in accordance with 210.52(C)(3). And what are the two exceptions?
210.52(C)(1) 24in Exception 1- Receptacles not required directly behind a range, counter-mounted cooking unit, or sink. Exception 2- Where a required receptacle outlet cannot be installed in behind a counter-mounted cooking unit, range or sink (less than 12&18 inches behind unit and wall), the receptacle outlet shall be permitted to be installed as close as practicable to the countertop area to be served. The total number of receptacle outlets serving the countertop shall not be less than the number needed to satisfy 210.52(C)(1)
Dwelling Unit Receptacle Outlets Receptacle outlets for countertops or similar work spaces shall be located to comply with which requirements? QTY3
210.52(C)(3) (1) On or above, but not more than 500 mm (20 in.) above, a countertop or work surface (2) In a countertop using receptacle outlet assemblies listed for use in countertops (3) In a work surface using receptacle outlet assemblies listed for use in work surfaces or listed for use in countertops
Dwelling Unit Receptacle Outlets Do islands follow the same rules as countertops when selecting outlet locations?
210.52(C)(3) Yes
Dwelling Unit Receptacle Outlets At least one receptacle outlet shall be installed in bathrooms within _____ft of the outside edge of each sink. The receptacle outlet shall be located on a wall or partition that is adjacent to the sink or sink countertop, located on the countertop, or installed on the side or face of the sink cabinet. In no case shall the receptacle be located more than _____in below the top of the sink or sink countertop. Receptacle outlet assemblies listed for use in countertops shall be permitted to be installed in the countertop.
210.52(D) 3ft 12in
Dwelling Unit Receptacle Outlets What is the requirement for installing a receptacle outlet when there are two basins in a bathroom?
210.52(D) If there is more than one basin, a receptacle outlet is required adjacent to each basin location. One receptacle outlet within 36 inches off both basins can be used to satisfy this requirement.
Branch Circuit Voltage Limitations Luminaires in occupancies shall not exceed ____V nominal.
210.6(A) 120V
Branch Circuit Voltage Limitations Cord-and-plug-connected loads rated _____ volt-amperes, nominal, or less or less than ______ hp shall not exceed a supply of 120 volts in occupancies.
210.6(A) 1440 volt-amperes 1/4 hp
Multiple Branch Circuits If two or more branch circuits supply devices or equipment on the same yoke or mounting strap, a means to simultaneously disconnect the ungrounded supply conductors shall not be required at the point at which the branch circuits originate. True or False?
210.7 False
Dwelling Units. All 125-volt through 250-volt receptacles installed in the following locations and supplied by single-phase branch circuits rated 150 volts or less to ground shall have ground-fault circuit-interrupter protection for personnel: QTY12
210.8(A) (1) Bathrooms (2) Garages and also accessory buildings that have a floor located at or below grade level not intended as habitable rooms and limited to storage areas, work areas, and areas of similar use (3) Outdoors (4) Crawl spaces — at or below grade level (5) Basements (6) Kitchens (7) Areas with sinks and permanent provisions for food preparation, beverage preparation, or cooking (8) Sinks — where receptacles are installed within 1.8 m (6 ft) from the top inside edge of the bowl of the sink (9) Boathouses (10) Bathtubs or shower stalls — where receptacles are installed within 1.8 m (6 ft) of the outside edge of the bathtub or shower stall (11) Laundry areas (12) Indoor damp and wet locations
Other Than Dwelling Units. All 125-volt through 250-volt receptacles supplied by single-phase branch circuits rated 150 volts or less to ground, 50 amperes or less, and all receptacles supplied by three-phase branch circuits rated 150 volts or less to ground, 100 amperes or less, require GFCI if installed in which locations: QTY15
210.8(B) (1) Bathrooms (2) Kitchens (3) Areas with sinks and permanent provisions for food preparation, beverage preparation, or cooking (4) Buffet serving areas with permanent provisions for food serving, beverage serving, or cooking (5) Rooftops (6) Outdoors (7) Sinks where receptacles or cord-and-plug-connected fixed or stationary appliances are installed within 1.8 m (6 ft) from the top inside edge of the bowl of the sink (8) Indoor damp or wet locations (9) Locker rooms with associated showering facilities (10) Garages, accessory buildings, service bays, and similar areas other than vehicle exhibition halls and showrooms (11) Crawl spaces at or below grade level (12) Unfinished areas of basements (13) Aquariums, bait wells, and similar open aquatic vessels or containers, such as tanks or bowls, where receptacles are installed within 1.8 m (6 ft.) from the top inside edge or rim or from the conductive support framing of the vessel or container (14) Laundry areas (15) Bathtubs and shower stalls where receptacles are installed within 1.8 m (6 ft) of the outside edge of the bathtub or shower stall
GFCI Other Than Dwelling Units Receptacles that are not readily accessible and are supplied by a branch circuit dedicated to electric snow-melting, deicing or pipeline and vessel heating equipment, shall be permitted to be installed without a GFCI. True or False?
210.8(B)Exception1 True, but needs to be installed in accordance with 426.28 or 427.22 as applicable.
GFCI Other Than Dwelling Units Receptacles on rooftops shall not be required to be readily accessible other than from the rooftop. True or False?
210.8(B)Exception2 True
GFCI Other Than Dwelling Units Receptacles or cord-and-plug-connected fixed and stationary appliances installed within 1.8 m (6 ft) from the top inside edge of a bowl of a sink shall be required to be GFCI protected in industrial establishments. True or False?
210.8(B)Exception3 False
GFCI Other Than Dwelling Units Receptacles or cord-and-plug-connected fixed and stationary appliances installed within (_____ft) from the top inside edge of a bowl of a sink shall not be required to be GFCI protected in industrial laboratories where the receptacles are used to supply equipment if removal of power would introduce a greater hazard.
210.8(B)Exception4 6ft
GFCI Other Than Dwelling Units Receptacles located in patient bed locations of category ___ or category___ spaces of health care shall be permitted to comply with 517.21 and not require GFCI.
210.8(B)Exception5 Category 1 (critical care) Category 2 (general care)
GFCI Other Than Dwelling Units Listed weight-supporting ceiling receptacles (WSCR) utilized in combination with compatible weight-supporting attachment fittings (WSAF) installed for the purpose of serving a ceiling luminaire or ceiling-suspended a GFCI shall be provided.
210.8(B)Exception6 False However, if a general-purpose convenience receptacle is integral to the ceiling luminaire or ceiling-suspended fan, GFCI protection shall be provided.
GFCI Crawl Space Lighting Outlets Is GFCI protection required in crawl spaces less than 120V?
210.8(C) Yes, for outlets not exceeding 120V
GFCI Specific Appliances GFCI protection shall be provided for the branch circuit or outlet supplying the following appliances rated 150 volts or less to ground and 60 amperes or less, single- or 3-phase: QTY12
210.8(D) (1) Automotive vacuum machines (2) Drinking water coolers and bottle fill stations (3) High-pressure spray washing machines (4) Tire inflation machines (5) Vending machines (6) Sump pumps (7) Dishwashers (8) Electric ranges (9) Wall-mounted ovens (10) Counter-mounted cooking units (11) Clothes dryers (12) Microwave ovens
GFCI Specific Appliances GFCI protection shall be provided for the branch circuit or outlet supplying a dishwasher with the circuit rated 150 volts or less to ground and _____ amperes or less, single- or 3-phase: 20 60 100 10
210.8(D) 60 A
GFCI protection shall be provided for branch circuits rated less than 150V or less to ground and 60 A or less for which of the following appliances: Television Vending Machine Clothes Dryer Microwave Refrigerator
210.8(D) Specific Appliances Vending Machine Clothes Dryer Microwave
GFCI Outdoor Receptacles All outdoor receptacles other than what is covered in 210.8(A) must have GFCI protection except for what two applications?
210.8(F) Besides snowmelting/de-icing from 210.8(A) 1.) Outdoor lighting besides crawl spaces (210.8(c)) 2.) Listed HVAC equipment but expires in September 1, 2026
GFCI Outdoor Receptacles If an equipment is replaced in a garage, boathouse or accessory building, the outlet supplying the equipment does not need to be replaced with GFCI as it is grandfathered. True or False
210.8(F) False
Outdoor Receptacles Boat houses, garages at or below grade and accessory buildings are all required to have what type of protection?
210.8(F) GFCI
Branch Circuits Derived from Autotransformers Branch circuits shall not be derived from autotransformers if the grounds from the supply to the load are not connected except for which two exceptions?
210.9 Exception No. 1: An autotransformer shall be permitted without the connection to a grounded conductor where transforming from a nominal 208 volts to a nominal 240-volt supply or similarly from 240 volts to 208 volts Exception No. 2: In industrial occupancies, where conditions of maintenance and supervision ensure that only qualified persons service the installation, autotransformers shall be permitted to supply nominal 600-volt loads from nominal 480-volt systems, and 480-volt loads from nominal 600-volt systems, without the connection to a similar grounded conductor.
Branch Circuits Derived from Autotransformers Branch circuits shall not be derived from autotransformers unless the circuit supplied has a grounded conductor that is electrically connected to a grounded conductor of the system supplying the autotransformer. True or False?
210.9 True
Which article covers the general requirements for branch circuits over 1000Vac & 1500Vdc?
Article 235
Required Outlets Have questions about required outlets for dwelling units. Where would you find the requirements in the NEC?
PartIII 210.52
