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Chapter 2 Wiring and Protection
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210.52
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This section provides requirements for 125-volt, 15- and 20-ampere receptacle outlets. The receptacles required by this section shall be in addition to any receptacle that is as follows: Part of a luminaire or appliance, orControlled by a listed wall-mounted control device in accordance with 210.70(A)(1), Exception No. 1, orLocated within cabinets or cupboards, orLocated more than 1.7 m (51/2 ft) above the floorPermanently installed electric baseboard heaters equipped with factory-installed receptacle outlets or outlets provided as a separate assembly by the manufacturer shall be permitted as the required outlet or outlets for the wall space utilized by such permanently installed heaters. Such receptacle outlets shall not be connected to the heater circuits.Informational Note: Listed baseboard heaters include instructions that may not permit their installation below receptacle outlets. [210.52](https://2023.antflix.net#210.52)
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https://2023.antflix.net#210.52
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Chapter 2 Wiring and Protection
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210.52(A)
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In every kitchen, family room, dining room, living room, parlor, library, den, sunroom, bedroom, recreation room, or similar room or area of dwelling units, receptacle outlets shall be installed in accordance with the general provisions specified in 210.52(A)(1) through (A)(4). [210.52(A)](https://2023.antflix.net#210.52(A))
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https://2023.antflix.net#210.52(A)
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Chapter 2 Wiring and Protection
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210.52(A)(1)
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Receptacles shall be installed such that no point measured horizontally along the floor line of any wall space is more than 1.8 m (6 ft) from a receptacle outlet. [210.52(A)(1)](https://2023.antflix.net#210.52(A)(1))
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https://2023.antflix.net#210.52(A)(1)
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Chapter 2 Wiring and Protection
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210.52(A)(2)
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As used in this section, a wall space shall include the following: 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 surfacesThe space occupied by fixed panels in walls, excluding sliding panelsThe space afforded by fixed room dividers, such as freestanding bar-type counters or railings [210.52(A)(2)](https://2023.antflix.net#210.52(A)(2))
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https://2023.antflix.net#210.52(A)(2)
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Chapter 2 Wiring and Protection
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210.52(A)(3)
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Receptacle outlets in or on floors shall not be counted as part of the required number of receptacle outlets unless located within 450 mm (18 in.) of the wall. [210.52(A)(3)](https://2023.antflix.net#210.52(A)(3))
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https://2023.antflix.net#210.52(A)(3)
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Chapter 2 Wiring and Protection
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210.52(A)(4)
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Receptacles installed for countertop and similar work surfaces as specified in 210.52(C) shall not be considered as the receptacle outlets required by 210.52(A). [210.52(A)(4)](https://2023.antflix.net#210.52(A)(4))
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https://2023.antflix.net#210.52(A)(4)
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Chapter 2 Wiring and Protection
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210.52(B)(1)
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In the kitchen, pantry, breakfast room, dining room, or similar area of a dwelling unit, the two or more 20-ampere small-appliance branch circuits required by 210.11(C)(1) shall serve all wall and floor receptacle outlets covered by 210.52(A), all countertop outlets covered by 210.52(C), and receptacle outlets for refrigeration equipment. Exception No. 1: In addition to the required receptacles specified by 210.52, switched receptacles supplied from a general-purpose 15- or 20-ampere branch circuit shall be permitted in accordance with 210.70(A)(1), Exception No. 1. Exception No. 2: In addition to the required receptacles specified by 210.52, a receptacle outlet to serve a specific appliance shall be permitted to be supplied from an individual branch circuit rated 15 amperes or greater. [210.52(B)(1)](https://2023.antflix.net#210.52(B)(1))
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https://2023.antflix.net#210.52(B)(1)
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Chapter 2 Wiring and Protection
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210.52(B)(2)
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The two or more small-appliance branch circuits specified in 210.52(B)(1) shall have no other outlets. Exception No. 1: A receptacle installed solely for the electrical supply to and support of an electric clock in any of the rooms specified in 210.52(B)(1) shall be permitted to be served by a small-appliance branch circuit. Exception No. 2: Receptacles installed to provide power for supplemental equipment and lighting on gas-fired ranges, ovens, or counter-mounted cooking units shall be permitted to be served by a small-appliance branch circuit. [210.52(B)(2)](https://2023.antflix.net#210.52(B)(2))
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https://2023.antflix.net#210.52(B)(2)
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Chapter 2 Wiring and Protection
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210.52(B)(3)
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Receptacles installed in a kitchen to serve countertop surfaces shall be supplied by not fewer than two small-appliance branch circuits, either or both of which shall also be permitted to supply receptacle outlets in the same kitchen and in other rooms specified in 210.52(B)(1). Additional small-appliance branch circuits shall be permitted to supply receptacle outlets in the kitchen and other rooms specified in 210.52(B)(1). No small-appliance branch circuit shall serve more than one kitchen. [210.52(B)(3)](https://2023.antflix.net#210.52(B)(3))
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https://2023.antflix.net#210.52(B)(3)
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Chapter 2 Wiring and Protection
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210.52(C)
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In kitchens, pantries, breakfast rooms, dining rooms, and similar areas of dwelling units, receptacle outlets for countertop and work surfaces that are 300 mm (12 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). For the purposes of this section, where using multioutlet assemblies, each 300 mm (12 in.) of multioutlet assembly containing two or more receptacles installed in individual or continuous lengths shall be considered to be one receptacle outlet. [210.52(C)](https://2023.antflix.net#210.52(C))
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https://2023.antflix.net#210.52(C)
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Chapter 2 Wiring and Protection
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210.52(C)(1)
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Receptacle outlets shall be installed so that no point along the wall line is more than 600 mm (24 in.) measured horizontally from a receptacle outlet in that space. The location of the receptacles shall be in accordance with 210.52(C)(3). Exception No. 1: Receptacle outlets shall not be required directly behind a range, counter-mounted cooking unit, or sink in the installation described in Figure 210.52(C)(1). Exception No. 2: Where a required receptacle outlet cannot be installed in the wall areas shown in Figure 210.52(C)(1), 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). These outlets shall be located in accordance with 210.52(C)(3).FIGURE 210.52(C)(1) Determination of Area Behind a Range, Counter-Mounted Cooking Unit, or Sink. [210.52(C)(1)](https://2023.antflix.net#210.52(C)(1))
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https://2023.antflix.net#210.52(C)(1)
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Chapter 2 Wiring and Protection
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210.52(C)(2)
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Receptacle outlets, if installed to serve an island or peninsular countertop or work surface, shall be installed in accordance with 210.52(C)(3). If a receptacle outlet is not provided to serve an island or peninsular countertop or work surface, provisions shall be provided at the island or peninsula for future addition of a receptacle outlet to serve the island or peninsular countertop or work surface. [210.52(C)(2)](https://2023.antflix.net#210.52(C)(2))
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https://2023.antflix.net#210.52(C)(2)
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Chapter 2 Wiring and Protection
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210.52(C)(3)
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Receptacle outlets shall be located in one or more of the following: On or above, but not more than 500 mm (20 in.) above, a countertop or work surfaceIn a countertop using receptacle outlet assemblies listed for use in countertopsIn a work surface using receptacle outlet assemblies listed for use in work surfaces or listed for use in countertopsReceptacle outlets rendered not readily accessible by appliances fastened in place, appliance garages, sinks, or rangetops as covered in 210.52(C)(1), Exception No. 1, or appliances occupying assigned spaces shall not be considered as these required outlets.Informational Note No. 1: See 406.5(E) for installation of receptacles in countertops and 406.5(F) for installation of receptacles in work surfaces. See 380.10 for installation of multioutlet assemblies.Informational Note No. 2: See Informative Annex J and ANSI/ICC A117.1-2009, Standard on Accessible and Usable Buildings and Facilities, for additional information. [210.52(C)(3)](https://2023.antflix.net#210.52(C)(3))
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https://2023.antflix.net#210.52(C)(3)
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Chapter 2 Wiring and Protection
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210.52(D)
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At least one receptacle outlet shall be installed in bathrooms within 900 mm (3 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 300 mm (12 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. Informational Note: See 406.5(E) and 406.5(G) for requirements on installation of receptacles in countertops. [210.52(D)](https://2023.antflix.net#210.52(D))
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https://2023.antflix.net#210.52(D)
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Chapter 2 Wiring and Protection
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210.52(E)
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Outdoor receptacle outlets shall be installed in accordance with 210.52(E)(1) through (E)(3). [210.52(E)](https://2023.antflix.net#210.52(E))
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https://2023.antflix.net#210.52(E)
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Chapter 2 Wiring and Protection
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210.52(E)(1)
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For a one-family dwelling and each unit of a two-family dwelling that is at grade level, at least one receptacle outlet readily accessible from grade and not more than 2.0 m (61/2 ft) above grade level shall be installed at the front and back of the dwelling. [210.52(E)(1)](https://2023.antflix.net#210.52(E)(1))
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https://2023.antflix.net#210.52(E)(1)
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Chapter 2 Wiring and Protection
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210.52(E)(2)
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For each dwelling unit of a multifamily dwelling where the dwelling unit is located at grade level and provided with individual exterior entrance/egress, at least one receptacle outlet readily accessible from grade and not more than 2.0 m (61/2 ft) above grade level shall be installed. [210.52(E)(2)](https://2023.antflix.net#210.52(E)(2))
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https://2023.antflix.net#210.52(E)(2)
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Chapter 2 Wiring and Protection
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210.52(E)(3)
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Balconies, decks, and porches that are within 102 mm (4 in.) horizontally of the dwelling unit shall have at least one receptacle outlet accessible from the balcony, deck, or porch. The receptacle outlet shall not be located more than 2.0 m (61/2 ft) above the balcony, deck, or porch walking surface. [210.52(E)(3)](https://2023.antflix.net#210.52(E)(3))
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https://2023.antflix.net#210.52(E)(3)
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Chapter 2 Wiring and Protection
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210.52(F)
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In dwelling units, at least one receptacle outlet shall be installed in areas designated for the installation of laundry equipment. Exception No. 1: A receptacle for laundry equipment shall not be required in a dwelling unit of a multifamily building where laundry facilities are provided on the premises for use by all building occupants. Exception No. 2: A receptacle for laundry equipment shall not be required in other than one-family dwellings where laundry facilities are not to be installed or permitted. [210.52(F)](https://2023.antflix.net#210.52(F))
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https://2023.antflix.net#210.52(F)
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Chapter 2 Wiring and Protection
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210.52(G)
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For one- and two-family dwellings, and multifamily dwellings, at least one receptacle outlet shall be installed in the areas specified in 210.52(G)(1) through (G)(3). These receptacles shall be in addition to receptacles required for specific equipment. Receptacles supplying only a permanently installed premises security system shall not be considered as meeting these requirements. [210.52(G)](https://2023.antflix.net#210.52(G))
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https://2023.antflix.net#210.52(G)
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Chapter 2 Wiring and Protection
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210.52(G)(1)
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In each attached garage and in each detached garage with electric power, at least one receptacle outlet shall be installed in each vehicle bay and not more than 1.7 m (51/2 ft) above the floor. Exception: Garage spaces not attached to an individual dwelling unit of a multifamily dwelling shall not require a receptacle outlet in each vehicle bay. [210.52(G)(1)](https://2023.antflix.net#210.52(G)(1))
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https://2023.antflix.net#210.52(G)(1)
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Chapter 2 Wiring and Protection
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210.52(G)(2)
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In each accessory building with electric power. [210.52(G)(2)](https://2023.antflix.net#210.52(G)(2))
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https://2023.antflix.net#210.52(G)(2)
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Chapter 2 Wiring and Protection
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210.52(G)(3)
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In each separate unfinished portion of a basement. [210.52(G)(3)](https://2023.antflix.net#210.52(G)(3))
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https://2023.antflix.net#210.52(G)(3)
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Chapter 2 Wiring and Protection
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210.52(H)
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In dwelling units, hallways of 3.0 m (10 ft) or more in length shall have at least one receptacle outlet. As used in this subsection, the hallway length shall be considered the length along the centerline of the hallway without passing through a doorway. [210.52(H)](https://2023.antflix.net#210.52(H))
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https://2023.antflix.net#210.52(H)
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Chapter 2 Wiring and Protection
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210.52(I)
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Foyers that are not part of a hallway in accordance with 210.52(H) and that have an area that is greater than 5.6 m2 (60 ft2) shall have a receptacle(s) located in each wall space 900 mm (3 ft) or more in width. Doorways, door-side windows that extend to the floor, and similar openings shall not be considered wall space. [210.52(I)](https://2023.antflix.net#210.52(I))
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https://2023.antflix.net#210.52(I)
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Chapter 2 Wiring and Protection
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210.60(A)
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Guest rooms or guest suites in hotels or motels, sleeping rooms in dormitory units, and similar occupancies shall have receptacle outlets installed in accordance with 210.52(A) and (D). Guest rooms or guest suites provided with permanent provisions for cooking shall have receptacle outlets installed in accordance with all of the applicable rules in 210.52. [210.60(A)](https://2023.antflix.net#210.60(A))
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https://2023.antflix.net#210.60(A)
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Chapter 2 Wiring and Protection
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210.60(B)
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The total number of receptacle outlets shall not be less than required in 210.52(A). These receptacle outlets shall be permitted to be located conveniently for permanent furniture layout. At least two receptacle outlets shall be readily accessible. Where receptacles are installed behind the bed, the receptacle shall be located to prevent the bed from contacting any attachment plug that may be installed or the receptacle shall be provided with a suitable guard. [210.60(B)](https://2023.antflix.net#210.60(B))
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https://2023.antflix.net#210.60(B)
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Chapter 2 Wiring and Protection
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210.62
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At least one 125-volt, single-phase, 15- or 20-ampere-rated receptacle outlet shall be installed within 450 mm (18 in.) of the top of each show window. No point along the top of the window shall be farther than 1.8 m (6 ft) from a receptacle outlet. [210.62](https://2023.antflix.net#210.62)
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https://2023.antflix.net#210.62
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Chapter 2 Wiring and Protection
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210.63
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A 125-volt, single-phase, 15- or 20-ampere-rated receptacle outlet shall be installed at an accessible location within 7.5 m (25 ft) of the equipment as specified in 210.63(A) and (B). Informational Note: See 210.8(E) for requirements on GFCI protection. [210.63](https://2023.antflix.net#210.63)
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https://2023.antflix.net#210.63
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Chapter 2 Wiring and Protection
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210.63(A)
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The required receptacle outlet shall be located on the same level as the heating, air-conditioning, and refrigeration equipment. The receptacle outlet shall not be connected to the load side of the equipment's branch-circuit disconnecting means. Exception: A receptacle outlet shall not be required at one- and two-family dwellings for the service of evaporative coolers. [210.63(A)](https://2023.antflix.net#210.63(A))
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https://2023.antflix.net#210.63(A)
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Chapter 2 Wiring and Protection
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210.63(B)
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In other than one- and two-family dwellings, a receptacle outlet shall be located as specified in 210.63(B)(1) and (B)(2). [210.63(B)](https://2023.antflix.net#210.63(B))
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https://2023.antflix.net#210.63(B)
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Chapter 2 Wiring and Protection
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210.63(B)(1)
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The required receptacle outlet shall be located within the same room or area as the service equipment. [210.63(B)(1)](https://2023.antflix.net#210.63(B)(1))
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https://2023.antflix.net#210.63(B)(1)
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Chapter 2 Wiring and Protection
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210.63(B)(2)
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Where equipment, other than service equipment, requires dedicated equipment space as specified in 110.26(E), the required receptacle outlet shall be located within the same room or area as the electrical equipment and shall not be connected to the load side of the equipment's disconnecting means. [210.63(B)(2)](https://2023.antflix.net#210.63(B)(2))
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https://2023.antflix.net#210.63(B)(2)
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Chapter 2 Wiring and Protection
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210.65(A)
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Each meeting room of not more than 93 m2 (1000 ft2) in other than dwelling units shall have outlets for nonlocking-type, 125-volt, 15- or 20-ampere receptacles. The outlets shall be installed in accordance with 210.65(B). Where a room or space is provided with movable partition(s), each room size shall be determined with the partition in the position that results in the smallest size meeting room. Informational Note No. 1: For the purposes of this section, meeting rooms are typically designed or intended for the gathering of seated occupants for such purposes as conferences, deliberations, or similar purposes, where portable electronic equipment such as computers, projectors, or similar equipment is likely to be used. Informational Note No. 2: Examples of rooms that are not meeting rooms include auditoriums, schoolrooms, and coffee shops. [210.65(A)](https://2023.antflix.net#210.65(A))
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https://2023.antflix.net#210.65(A)
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Chapter 2 Wiring and Protection
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210.65(B)
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The total number of receptacle outlets, including floor outlets and receptacle outlets in fixed furniture, shall not be less than as determined in 210.65(B)(1) and (B)(2). [210.65(B)](https://2023.antflix.net#210.65(B))
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https://2023.antflix.net#210.65(B)
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Chapter 2 Wiring and Protection
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210.65(B)(1)
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The required number of receptacle outlets shall be determined in accordance with 210.52(A)(1) through (A)(4). These receptacle outlets shall be permitted to be located as determined by the installer, designer, or building owner. [210.65(B)(1)](https://2023.antflix.net#210.65(B)(1))
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https://2023.antflix.net#210.65(B)(1)
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Chapter 2 Wiring and Protection
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210.65(B)(2)
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A meeting room with any floor dimension that is 3.7 m (12 ft) or greater in any direction and that has a floor area of at least 20 m2 (215 ft2) shall have at least one floor receptacle outlet, or at least one floor outlet to serve a receptacle(s), located at a distance not less than 1.8 m (6 ft) from any fixed wall for each 20 m2 (215 ft2) or fraction thereof. Informational Note No. 1: See 314.27(B) for requirements on floor boxes used for receptacles located in the floor. Informational Note No. 2: See 518.1 for requirements on assembly occupancies designed for 100 or more persons. [210.65(B)(2)](https://2023.antflix.net#210.65(B)(2))
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https://2023.antflix.net#210.65(B)(2)
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Chapter 2 Wiring and Protection
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210.70
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Lighting outlets shall be installed where specified in 210.70(A), (B), and (C). The switch or wall-mounted control device shall not rely exclusively on a battery unless a means is provided for automatically energizing the lighting outlets upon battery failure. [210.70](https://2023.antflix.net#210.70)
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https://2023.antflix.net#210.70
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Chapter 2 Wiring and Protection
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210.70(A)
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In dwelling units, lighting outlets shall be installed in accordance with 210.70(A)(1) and (A)(2). [210.70(A)](https://2023.antflix.net#210.70(A))
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https://2023.antflix.net#210.70(A)
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Chapter 2 Wiring and Protection
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210.70(A)(1)
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At least one lighting outlet controlled by a listed wall-mounted control device shall be installed in every habitable room, kitchen, laundry area, and bathroom. The wall-mounted control device shall be located near an entrance to the room on a wall. Exception No. 1: In other than kitchens, laundry areas, and bathrooms, one or more receptacles controlled by a listed wall-mounted control device shall be permitted in lieu of lighting outlets. Exception No. 2: Lighting outlets shall be permitted to be controlled by occupancy sensors that are (1) in addition to listed wall-mounted control devices or (2) located at a customary wall switch location and equipped with a manual override that will allow the sensor to function as a wall switch. [210.70(A)(1)](https://2023.antflix.net#210.70(A)(1))
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https://2023.antflix.net#210.70(A)(1)
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Chapter 2 Wiring and Protection
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210.70(A)(2)
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Additional lighting outlets shall be installed in accordance with the following: At least one lighting outlet controlled by a listed wall-mounted control device shall be installed in hallways, stairways, attached garages, detached garages, and accessory buildings with electric power.For dwelling units, attached garages, and detached garages with electric power, at least one exterior lighting outlet controlled by a listed wall-mounted control device shall be installed to provide illumination on the exterior side of outdoor entrances or exits with grade-level access. A vehicle door in a garage shall not be considered as an outdoor entrance or exit.Exception to (2): For an outdoor, grade-level bulkhead door with stairway access to a sub-grade-level basement, the required lighting outlet that provides illumination on the stairway steps shall be permitted to be located in the basement interior within 1.5 m (5 ft) horizontally of the bottommost stairway riser. This interior lighting outlet shall be permitted to be controlled by a listed wall-mounted control device or by a unit switch of the interior luminaire or interior lampholder.Where lighting outlets are installed for an interior stairway with six or more risers between floor levels, there shall be a listed wall-mounted control device at each floor level and at each landing level that includes a stairway entry to control the lighting outlets.Exception to (1), (2), and (3): Remote, central, or automatic control of lighting shall be permitted in hallways, in stairways, and at outdoor entrances.Dimmer control of lighting outlets installed in accordance with 210.70(A)(2)(3) shall not be permitted unless the listed control devices can provide dimming control to maximum brightness at each control location for the interior stairway illumination. [210.70(A)(2)](https://2023.antflix.net#210.70(A)(2))
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https://2023.antflix.net#210.70(A)(2)
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Chapter 2 Wiring and Protection
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210.70(B)
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In hotels, motels, or similar occupancies, guest rooms or guest suites shall have at least one lighting outlet controlled by a listed wall-mounted control device installed in every habitable room and bathroom. Exception No. 1: In other than bathrooms and kitchens where provided, one or more receptacles controlled by a listed wall-mounted control device shall be permitted in lieu of lighting outlets. Exception No. 2: Lighting outlets shall be permitted to be controlled by occupancy sensors that are (1) in addition to listed wall-mounted control devices or (2) located at a customary wall switch location and equipped with a manual override that allows the sensor to function as a wall switch. [210.70(B)](https://2023.antflix.net#210.70(B))
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https://2023.antflix.net#210.70(B)
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Chapter 2 Wiring and Protection
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210.70(C)
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For attics and underfloor spaces, utility rooms, and basements, at least one lighting outlet containing a switch or controlled by a wall switch or listed wall-mounted control device shall be installed where these spaces are used for storage or contain equipment requiring servicing. A point of control shall be at each entry that permits access to the attic and underfloor space, utility room, or basement. Where a lighting outlet is installed for equipment requiring service, the lighting outlet shall be installed at or near the equipment. [210.70(C)](https://2023.antflix.net#210.70(C))
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https://2023.antflix.net#210.70(C)
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Chapter 2 Wiring and Protection
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215.1
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This article covers the installation requirements, overcurrent protection requirements, minimum size, and ampacity of conductors for feeders not over 1000 volts ac or 1500 volts dc, nominal. Informational Note: See Part III of Article 235 for feeders over 1000 volts ac or 1500 volts dc. [215.1](https://2023.antflix.net#215.1)
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https://2023.antflix.net#215.1
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Chapter 2 Wiring and Protection
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215.2(A)
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Feeder conductors shall have an ampacity not less than the larger of 215.2(A)(1) or (A)(2) and shall comply with 110.14(C). [215.2(A)](https://2023.antflix.net#215.2(A))
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https://2023.antflix.net#215.2(A)
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Chapter 2 Wiring and Protection
|
215.2(A)(1)
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Where a feeder supplies continuous loads or any combination of continuous and noncontinuous loads, the minimum feeder conductor size shall have an ampacity not less than the noncontinuous load plus 125 percent of the continuous load. Exception No. 1: If the assembly, including the overcurrent devices protecting the feeder(s), is listed for operation at 100 percent of its rating, the ampacity of the feeder conductors shall be permitted to be not less than the sum of the continuous load plus the noncontinuous load. Exception No. 2: Where a portion of a feeder is connected at both its supply and load ends to separately installed pressure connections as covered in 110.14(C)(2), it shall be permitted to have an ampacity not less than the sum of the continuous load plus the noncontinuous load. No portion of a feeder installed under this exception shall extend into an enclosure containing either the feeder supply or the feeder load terminations, as covered in 110.14(C)(1). Exception No. 3: Grounded conductors that are not connected to an overcurrent device shall be permitted to be sized at 100 percent of the continuous and noncontinuous load. [215.2(A)(1)](https://2023.antflix.net#215.2(A)(1))
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https://2023.antflix.net#215.2(A)(1)
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Chapter 2 Wiring and Protection
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215.2(A)(2)
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The minimum feeder conductor size shall have an ampacity not less than the maximum load to be served after the application of any adjustment or correction factors in accordance with 310.14. Informational Note No. 1: See Informative Annex D for Examples D1 through D11. Informational Note No. 2: Conductors for feeders, as defined in Article 100, sized to prevent a voltage drop exceeding 3 percent at the farthest outlet of power, heating, and lighting loads, or combinations of such loads, and where the maximum total voltage drop on both feeders and branch circuits to the farthest outlet does not exceed 5 percent, will provide reasonable efficiency of operation. Informational Note No. 3: See 210.19, Informational Note for voltage drop for branch circuits. [215.2(A)(2)](https://2023.antflix.net#215.2(A)(2))
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https://2023.antflix.net#215.2(A)(2)
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Chapter 2 Wiring and Protection
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215.2(B)
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The size of the feeder circuit grounded conductor shall not be smaller than the equipment grounding conductor size required by 250.122, except that 250.122(F) shall not apply where grounded conductors are run in parallel. Additional minimum sizes shall be as specified in 215.2(C) under the conditions stipulated. [215.2(B)](https://2023.antflix.net#215.2(B))
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https://2023.antflix.net#215.2(B)
|
Chapter 2 Wiring and Protection
|
215.2(C)
|
The feeder conductor ampacity shall not be less than that of the service conductors where the feeder conductors carry the total load supplied by service conductors with an ampacity of 55 amperes or less. [215.2(C)](https://2023.antflix.net#215.2(C))
|
https://2023.antflix.net#215.2(C)
|
Chapter 2 Wiring and Protection
|
215.3
|
Feeders shall be protected against overcurrent in accordance with Part I of Article 240. Where a feeder supplies continuous loads or any combination of continuous and noncontinuous loads, the rating of the overcurrent device shall not be less than the noncontinuous load plus 125 percent of the continuous load. Exception: Where the assembly, including the overcurrent devices protecting the feeder(s), is listed for operation at 100 percent of its rating, the ampere rating of the overcurrent device shall be permitted to be not less than the sum of the continuous load plus the noncontinuous load. [215.3](https://2023.antflix.net#215.3)
|
https://2023.antflix.net#215.3
|
Chapter 2 Wiring and Protection
|
215.4(A)
|
Up to three sets of 3-wire feeders or two sets of 4-wire or 5-wire feeders shall be permitted to utilize a common neutral. [215.4(A)](https://2023.antflix.net#215.4(A))
|
https://2023.antflix.net#215.4(A)
|
Chapter 2 Wiring and Protection
|
215.4(B)
|
Where installed in a metal raceway or other metal enclosure, all conductors of all feeders using a common neutral conductor shall be enclosed within the same raceway or other enclosure as required in 300.20. [215.4(B)](https://2023.antflix.net#215.4(B))
|
https://2023.antflix.net#215.4(B)
|
Chapter 2 Wiring and Protection
|
215.5
|
If required by the authority having jurisdiction, a diagram showing feeder details shall be provided prior to the installation of the feeders. Such a diagram shall show the area in square feet of the building or other structure supplied by each feeder, the total calculated load before applying demand factors, the demand factors used, the calculated load after applying demand factors, and the size and type of conductors to be used. [215.5](https://2023.antflix.net#215.5)
|
https://2023.antflix.net#215.5
|
Chapter 2 Wiring and Protection
|
215.6
|
Where a feeder supplies branch circuits in which equipment grounding conductors are required, the feeder shall include or provide an equipment grounding conductor, to which the equipment grounding conductors of the branch circuits shall be connected. Where the feeder supplies a separate building or structure, the requirements of 250.32 shall apply. [215.6](https://2023.antflix.net#215.6)
|
https://2023.antflix.net#215.6
|
Chapter 2 Wiring and Protection
|
215.7
|
Two-wire dc circuits and ac circuits of two or more ungrounded conductors shall be permitted to be tapped from the ungrounded conductors of circuits having a grounded neutral conductor. Switching devices in each tapped circuit shall have a pole in each ungrounded conductor. [215.7](https://2023.antflix.net#215.7)
|
https://2023.antflix.net#215.7
|
Chapter 2 Wiring and Protection
|
215.9
|
Feeders shall be permitted to be protected by a listed ground-fault circuit interrupter installed in a readily accessible location in lieu of the provisions for such interrupters as specified in 210.8 and 590.6(A). [215.9](https://2023.antflix.net#215.9)
|
https://2023.antflix.net#215.9
|
Chapter 2 Wiring and Protection
|
215.10
|
Each feeder disconnect rated 1000 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. Informational Note: See 517.17 for buildings that contain health care occupancies. Exception No. 1: This section shall not apply to a disconnecting means for a continuous industrial process where a nonorderly shutdown will introduce additional or increased hazards. Exception No. 2: This section shall not apply if ground-fault protection of equipment is provided on the supply side of the feeder and on the load side of any transformer supplying the feeder. Exception No. 3: If temporary feeder conductors are used to connect a generator to a facility for repair, maintenance, or emergencies, ground-fault protection of equipment shall not be required. Temporary feeders without ground-fault protection shall be permitted for the time period necessary but shall not exceed 90 days. [215.10](https://2023.antflix.net#215.10)
|
https://2023.antflix.net#215.10
|
Chapter 2 Wiring and Protection
|
215.11
|
Feeders shall not be derived from autotransformers unless the system supplied has a grounded conductor that is electrically connected to a grounded conductor of the system supplying the autotransformer. 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. [215.11](https://2023.antflix.net#215.11)
|
https://2023.antflix.net#215.11
|
Chapter 2 Wiring and Protection
|
215.12(A)
|
The grounded conductor of a feeder, if insulated, shall be identified in accordance with 200.6. [215.12(A)](https://2023.antflix.net#215.12(A))
|
https://2023.antflix.net#215.12(A)
|
Chapter 2 Wiring and Protection
|
215.12(B)
|
The equipment grounding conductor shall be identified in accordance with 250.119. [215.12(B)](https://2023.antflix.net#215.12(B))
|
https://2023.antflix.net#215.12(B)
|
Chapter 2 Wiring and Protection
|
215.12(C)
|
Ungrounded conductors shall be identified in accordance with 215.12(C)(1) or (C)(2), as applicable. [215.12(C)](https://2023.antflix.net#215.12(C))
|
https://2023.antflix.net#215.12(C)
|
Chapter 2 Wiring and Protection
|
215.12(C)(1)
|
Where the premises wiring system has feeders supplied from more than one nominal voltage system, each ungrounded conductor of a feeder shall be identified by phase or line and system at all termination, connection, and splice points in compliance with 215.12(C)(1)(a) and (C)(1)(b). Means of Identification. The means of identification shall be permitted to be by separate color coding, marking tape, tagging, or other approved means.Posting of Identification Means. The method utilized for conductors originating within each feeder panelboard or similar feeder distribution equipment shall be documented in a manner that is readily available or shall be permanently posted at each feeder panelboard or similar feeder distribution equipment. [215.12(C)(1)](https://2023.antflix.net#215.12(C)(1))
|
https://2023.antflix.net#215.12(C)(1)
|
Chapter 2 Wiring and Protection
|
215.12(C)(2)
|
Where a feeder is supplied from a dc system operating at more than 60 volts, each ungrounded conductor of 4 AWG or larger shall be identified by polarity at all termination, connection, and splice points by marking tape, tagging, or other approved means; each ungrounded conductor of 6 AWG or smaller shall be identified by polarity at all termination, connection, and splice points in compliance with 215.12(C)(2)(a) and (C)(2)(b). The identification methods utilized for conductors originating within each feeder panelboard or similar feeder distribution equipment shall be documented in a manner that is readily available or shall be permanently posted at each feeder panelboard or similar feeder distribution equipment. Positive Polarity, Sizes 6 AWG or Smaller. Where the positive polarity of a dc system does not serve as the connection for the grounded conductor, each positive ungrounded conductor shall be identified by one of the following means:A continuous red outer finishA continuous red stripe durably marked along the conductor's entire length on insulation of a color other than green, white, gray, or blackImprinted plus signs (+) or the word POSITIVE or POS durably marked on insulation of a color other than green, white, gray, or black, and repeated at intervals not exceeding 610 mm (24 in.) in accordance with 310.8(B)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 plus signs (+) or the word POSITIVE or POS durably marked on insulation of a color other than green, white, gray, or blackNegative Polarity, Sizes 6 AWG or Smaller. Where the negative polarity of a dc system does not serve as the connection for the grounded conductor, each negative ungrounded conductor shall be identified by one of the following means:A continuous black outer finishA continuous black stripe durably marked along the conductor's entire length on insulation of a color other than green, white, gray, or redImprinted 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)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 [215.12(C)(2)](https://2023.antflix.net#215.12(C)(2))
|
https://2023.antflix.net#215.12(C)(2)
|
Chapter 2 Wiring and Protection
|
215.15
|
Barriers shall be placed such that no energized, uninsulated, ungrounded busbar or terminal is exposed to inadvertent contact by persons or maintenance equipment while servicing load terminations in panelboards, switchboards, switchgear, or motor control centers supplied by feeder taps in 240.21(B) or transformer secondary conductors in 240.21(C) when the disconnecting device, to which the tap conductors are terminated, is in the open position. [215.15](https://2023.antflix.net#215.15)
|
https://2023.antflix.net#215.15
|
Chapter 2 Wiring and Protection
|
215.18(A)
|
Where a feeder supplies any of the following, a surge-protective device (SPD) shall be installed: Dwelling unitsDormitory unitsGuest rooms and guest suites of hotels and motelsAreas of nursing homes and limited-care facilities used exclusively as patient sleeping rooms [215.18(A)](https://2023.antflix.net#215.18(A))
|
https://2023.antflix.net#215.18(A)
|
Chapter 2 Wiring and Protection
|
215.18(B)
|
The SPD shall be installed in or adjacent to distribution equipment, connected to the load side of the feeder, that contains branch circuit overcurrent protective device(s) that supply the locations specified in 215.18(A). Informational Note: Surge protection is most effective when closest to the branch circuit. Surges can be generated from multiple sources including, but not limited to, lightning, the electric utility, or utilization equipment. [215.18(B)](https://2023.antflix.net#215.18(B))
|
https://2023.antflix.net#215.18(B)
|
Chapter 2 Wiring and Protection
|
215.18(C)
|
The SPD shall be a Type 1 or Type 2 SPD. [215.18(C)](https://2023.antflix.net#215.18(C))
|
https://2023.antflix.net#215.18(C)
|
Chapter 2 Wiring and Protection
|
215.18(D)
|
Where the distribution equipment supplied by the feeder is replaced, all of the requirements of this section shall apply. [215.18(D)](https://2023.antflix.net#215.18(D))
|
https://2023.antflix.net#215.18(D)
|
Chapter 2 Wiring and Protection
|
215.18(E)
|
SPDs shall have a nominal discharge current rating (In) of not less than 10kA. [215.18(E)](https://2023.antflix.net#215.18(E))
|
https://2023.antflix.net#215.18(E)
|
Chapter 2 Wiring and Protection
|
220.1
|
This article provides requirements for calculating branch-circuit, feeder, and service loads. Part I provides general requirements for calculation methods. Part II provides calculation methods for branch-circuit loads. Part III and Part IV provide calculation methods for feeder and service loads. Part V provides calculation methods for farm loads. Part VI provides calculation methods for health care facilities. Part VII provides calculation methods for marinas, boatyards, floating buildings, and commercial and noncommercial docking facilities. Informational Note No. 1: See Informative Annex D for examples. Informational Note No. 2: See Informational Note Figure 220.1 for information on the organization of this article. Informational Note Figure 220.1 Branch-Circuit, Feeder, and Service Load Calculation Methods. [220.1](https://2023.antflix.net#220.1)
|
https://2023.antflix.net#220.1
|
Chapter 2 Wiring and Protection
|
220.3
|
Table 220.3 shall provide references for specific-purpose calculation requirements not located in Chapters 5, 6, or 7 that amend or supplement the requirements of this article. Table 220.3 Specific-Purpose Calculation References Calculation Article Section (or Part) Air-conditioning and refrigerating equipment, branch-circuit conductor sizing 440 Part IV Capacitors 460 460.8 Fixed electric heating equipment for pipelines and vessels, branch-circuit sizing 427 427.4 Fixed electric space-heating equipment, branch-circuit sizing 424 424.3 Fixed outdoor electric deicing and snow-melting equipment, branch-circuit sizing 426 426.4 Fixed resistance and electrode industrial process heating equipment 425 425.4 Motors, feeder demand factor 430 430.26 Motors, multimotor and combination-load equipment 430 430.25 Motors, several motors or a motor(s) and other load(s) 430 430.24 Over 1000-volt ac and 1500-volt dc branch-circuit calculations 235 235.19 Over 1000-volt feeder calculations 215 215.2(B) Phase converters, conductors 455 455.6 Storage-type water heaters 422 422.11 [220.3](https://2023.antflix.net#220.3)
|
https://2023.antflix.net#220.3
|
Chapter 2 Wiring and Protection
|
220.5(A)
|
Unless other voltages are specified, for purposes of calculating branch-circuit and feeder loads, nominal system voltages of 120, 120/240, 208Y/120, 240, 347, 480Y/277, 480, 600Y/347, and 600 volts shall be used. [220.5(A)](https://2023.antflix.net#220.5(A))
|
https://2023.antflix.net#220.5(A)
|
Chapter 2 Wiring and Protection
|
220.5(B)
|
Calculations shall be permitted to be rounded to the nearest whole ampere, with decimal fractions smaller than 0.5 dropped. [220.5(B)](https://2023.antflix.net#220.5(B))
|
https://2023.antflix.net#220.5(B)
|
Chapter 2 Wiring and Protection
|
220.5(C)
|
The floor area for each floor shall be calculated from the outside dimensions of the building, dwelling unit, or other area involved. For dwelling units, the calculated floor area shall not include open porches or unfinished areas not adaptable for future use as a habitable room or occupiable space. [220.5(C)](https://2023.antflix.net#220.5(C))
|
https://2023.antflix.net#220.5(C)
|
Chapter 2 Wiring and Protection
|
220.10
|
Branch-circuit loads shall be calculated in accordance with the following sections: 220.14 for other loads - all occupancies220.16 for additions to existing installations220.41 for dwelling units220.42 for lighting loads for non-dwelling occupancies220.44 for hotel and motel occupancies [220.10](https://2023.antflix.net#220.10)
|
https://2023.antflix.net#220.10
|
Chapter 2 Wiring and Protection
|
220.11
|
The total load on a branch circuit shall not exceed the rating of the branch circuit nor the maximum loads specified in 220.11(A) through (C) under the conditions specified therein. [220.11](https://2023.antflix.net#220.11)
|
https://2023.antflix.net#220.11
|
Chapter 2 Wiring and Protection
|
220.11(A)
|
Where a circuit supplies only motor-operated loads, the conductor sizing requirement specified in 430.22 shall apply. Where a circuit supplies only air-conditioning equipment, refrigerating equipment, or both, the requirements of 440.6 shall apply. For circuits supplying loads consisting of motor-operated utilization equipment that is fastened in place and has a motor larger than 1/8 hp in combination with other loads, the total calculated load shall be based on 125 percent of the largest motor load plus the sum of the other loads in accordance with 430.24. [220.11(A)](https://2023.antflix.net#220.11(A))
|
https://2023.antflix.net#220.11(A)
|
Chapter 2 Wiring and Protection
|
220.11(B)
|
For circuits supplying lighting units that have ballasts, transformers, autotransformers, or LED drivers, the calculated load shall be based on the total ampere ratings of such units and not on the total watts of the lamps. [220.11(B)](https://2023.antflix.net#220.11(B))
|
https://2023.antflix.net#220.11(B)
|
Chapter 2 Wiring and Protection
|
220.11(C)
|
Applying demand factors for ranges, wall-mounted ovens, counter-mounted cooking units, and other household cooking appliance loads in excess of 13/4 kW shall be permitted in accordance with Table 220.55, including Notes 4, 5, and 6. [220.11(C)](https://2023.antflix.net#220.11(C))
|
https://2023.antflix.net#220.11(C)
|
Chapter 2 Wiring and Protection
|
220.14
|
Branch-circuit load calculations shall include calculation of a minimum load on each outlet as calculated in 220.14(A) through (K) and then summed to establish the load on the branch circuit. In all occupancies, the minimum load for each outlet for general-use receptacles and outlets not used for general illumination shall not be less than that calculated in 220.14(A) through (K), with the loads shown being based on nominal branch-circuit voltages. Exception: The loads of outlets serving switchboards and switching frames in telephone exchanges shall be waived from the calculations. [220.14](https://2023.antflix.net#220.14)
|
https://2023.antflix.net#220.14
|
Chapter 2 Wiring and Protection
|
220.14(A)
|
An outlet for a specific appliance or other load not covered in 220.14(B) through (K) shall be calculated based on the ampere rating of the appliance or load served. [220.14(A)](https://2023.antflix.net#220.14(A))
|
https://2023.antflix.net#220.14(A)
|
Chapter 2 Wiring and Protection
|
220.14(B)
|
Load calculations shall be permitted as specified in 220.54 for electric dryers and in 220.55 for electric ranges and other cooking appliances. [220.14(B)](https://2023.antflix.net#220.14(B))
|
https://2023.antflix.net#220.14(B)
|
Chapter 2 Wiring and Protection
|
220.14(C)
|
The conductor sizing requirements specified in 430.22, 430.24, and 440.6 shall be used to determine the loads for motor outlets. [220.14(C)](https://2023.antflix.net#220.14(C))
|
https://2023.antflix.net#220.14(C)
|
Chapter 2 Wiring and Protection
|
220.14(D)
|
An outlet supplying a luminaire(s) shall be calculated based on the maximum volt-ampere rating of the equipment and lamps for which the luminaire(s) is rated. [220.14(D)](https://2023.antflix.net#220.14(D))
|
https://2023.antflix.net#220.14(D)
|
Chapter 2 Wiring and Protection
|
220.14(E)
|
Outlets for heavy-duty lampholders shall be calculated at a minimum of 600 volt-amperes. [220.14(E)](https://2023.antflix.net#220.14(E))
|
https://2023.antflix.net#220.14(E)
|
Chapter 2 Wiring and Protection
|
220.14(F)
|
Sign and outline lighting outlets shall be calculated at a minimum of 1200 volt-amperes for each required branch circuit specified in 600.5(A). [220.14(F)](https://2023.antflix.net#220.14(F))
|
https://2023.antflix.net#220.14(F)
|
Chapter 2 Wiring and Protection
|
220.14(G)
|
Show windows shall be calculated in accordance with either of the following: The unit load per outlet as required in other provisions of this sectionAt 200 volt-amperes per linear 300 mm (1 ft) of show window [220.14(G)](https://2023.antflix.net#220.14(G))
|
https://2023.antflix.net#220.14(G)
|
Chapter 2 Wiring and Protection
|
220.14(H)
|
Fixed multioutlet assemblies used in other than dwelling units or the guest rooms or guest suites of hotels or motels shall be calculated in accordance with the following: Where appliances are unlikely to be used simultaneously, each 1.5 m (5 ft) or fraction thereof of each separate and continuous length shall be considered as one outlet of not less than 180 volt-amperes.Where appliances are likely to be used simultaneously, each 300 mm (1 ft) or fraction thereof shall be considered as an outlet of not less than 180 volt-amperes.For the purposes of this section, the calculation shall be permitted to be based on the portion that contains receptacles. [220.14(H)](https://2023.antflix.net#220.14(H))
|
https://2023.antflix.net#220.14(H)
|
Chapter 2 Wiring and Protection
|
220.14(I)
|
Except as covered in 220.41 and 220.14(J), receptacle outlets shall be calculated at not less than 180 volt-amperes for each single or for each multiple receptacle on one yoke. A single piece of equipment consisting of a multiple receptacle comprised of four or more receptacles shall be calculated at not less than 90 volt-amperes per receptacle. This provision shall not be applicable to the receptacle outlets specified in 210.11(C)(1) and (C)(2). [220.14(I)](https://2023.antflix.net#220.14(I))
|
https://2023.antflix.net#220.14(I)
|
Chapter 2 Wiring and Protection
|
220.14(J)
|
In office buildings, the receptacle loads shall be calculated to be the larger of the following: The calculated load from 220.14(I)11 volt-amperes/m2 (1 volt-ampere/ft2) [220.14(J)](https://2023.antflix.net#220.14(J))
|
https://2023.antflix.net#220.14(J)
|
Chapter 2 Wiring and Protection
|
220.14(K)
|
Other outlets not covered in 220.14(A) through (J) shall be calculated based on 180 volt-amperes per outlet. [220.14(K)](https://2023.antflix.net#220.14(K))
|
https://2023.antflix.net#220.14(K)
|
Chapter 2 Wiring and Protection
|
220.16(A)
|
Loads added to an existing dwelling unit(s) shall comply with the following as applicable: Loads for structural additions to an existing dwelling unit or for a previously unwired portion of an existing dwelling unit shall be calculated in accordance with 220.14.Loads for new circuits or extended circuits in previously wired dwelling units shall be calculated in accordance with 220.14. [220.16(A)](https://2023.antflix.net#220.16(A))
|
https://2023.antflix.net#220.16(A)
|
Chapter 2 Wiring and Protection
|
220.16(B)
|
Loads for new circuits or extended circuits in other than dwelling units shall be calculated in accordance with either 220.42 or 220.14, as applicable. [220.16(B)](https://2023.antflix.net#220.16(B))
|
https://2023.antflix.net#220.16(B)
|
Chapter 2 Wiring and Protection
|
220.40
|
The calculated load of a feeder or service shall not be less than the sum of the loads on the branch circuits supplied, as determined by Part II of this article, after any applicable demand factors permitted or required by Part III, IV, V, VI, or VII have been applied. Informational Note No. 1: See Informative Annex D, Examples D1(a) through D10, for examples of feeder and service load calculations. Informational Note No. 2: See 220.11(B) for the maximum load in amperes permitted for lighting units operating at less than 100 percent power factor. [220.40](https://2023.antflix.net#220.40)
|
https://2023.antflix.net#220.40
|
Chapter 2 Wiring and Protection
|
220.41
|
In one-family, two-family, and multifamily dwellings, the minimum unit load shall be not less than 33 volt-amperes/m2 (3 volt-amperes/ft2). Unit loads include the following lighting and receptacle outlets, and no additional load calculations shall be required:All general-use receptacle outlets of 20-ampere rating or less, including receptacles connected to the circuits specified in 210.11(C)(3) and (C)(4)The receptacle outlets specified in 210.52(E) and (G)The lighting outlets specified in 210.70The minimum lighting load shall be determined using the minimum unit load and the floor area as determined in 220.5(C) for dwelling occupancies. Motors rated less than 1/8 hp and connected to a lighting circuit shall be considered part of the minimum lighting load. [220.41](https://2023.antflix.net#220.41)
|
https://2023.antflix.net#220.41
|
Chapter 2 Wiring and Protection
|
220.42(A)
|
A unit load of not less than that specified in Table 220.42(A) for non-dwelling occupancies and the floor area determined in 220.5(C) shall be used to calculate the minimum lighting load. Motors rated less than 1/8 HP and connected to a lighting circuit shall be considered general lighting load. Informational Note: The unit values of Table 220.42(A) are based on minimum load conditions and 80 percent power factor and might not provide sufficient capacity for the installation contemplated.
Table 220.42(A) General Lighting Loads by Non-Dwelling Occupancy Type of Occupancy Unit Load Volt-amperes/m2 Volt-amperes/ft2 Automotive facility 16 1.5 Convention center 15 1.4 Courthouse 15 1.4 Dormitory 16 1.5 Exercise center 15 1.4 Fire station 14 1.3 Gymnasium1 18 1.7 Health care clinic 17 1.6 Hospital 17 1.6 Hotel or motel, or apartment house without provisions for cooking by tenants2 18 1.7 Library 16 1.5 Manufacturing facility3 24 2.2 Motion picture theater 17 1.6 Museum 17 1.6 Office4 14 1.3 Parking garage5 3 0.3 Penitentiary 13 1.2 Performing arts theater 16 1.5 Police station 14 1.3 Post office 17 1.6 Religious facility 24 2.2 Restaurant6 16 1.5 Retail7,8 20 1.9 School/university 16 1.5 Sports arena 16 1.5 Town hall 15 1.4 Transportation 13 1.2 Warehouse 13 1.2 Workshop 18 1.7 Note: The 125 percent multiplier for a continuous load as specified in 210.20(A) is included, therefore no additional multiplier shall be required when using the unit loads in this table for calculating the minimum lighting load for a specified occupancy.1Armories and auditoriums are considered gymnasium-type occupancies.2Lodge rooms are similar to hotels and motels.3Industrial commercial loft buildings are considered manufacturing-type occupancies.4Banks are office-type occupancies.5Commercial (storage) garages are considered parking garage occupancies.6Clubs are considered restaurant occupancies.7Barber shops and beauty parlors are considered retail occupancies.8Stores are considered retail occupancies. [220.42(A)](https://2023.antflix.net#220.42(A))
|
https://2023.antflix.net#220.42(A)
|
Chapter 2 Wiring and Protection
|
220.42(B)
|
Where the building is designed and constructed to comply with an energy code adopted by the local authority, the lighting load shall be permitted to be calculated using the unit values specified in the energy code where the following conditions are met: A power monitoring system is installed that will provide continuous information regarding the total general lighting load of the building.The power monitoring system will be set with alarm values to alert the building owner or manager if the lighting load exceeds the values set by the energy code. Automatic means to take action to reduce the connected load shall be permitted.The demand factors specified in 220.45 are not applied to the general lighting load.The continuous load multiplier of 125 percent shall be applied. [220.42(B)](https://2023.antflix.net#220.42(B))
|
https://2023.antflix.net#220.42(B)
|
Chapter 2 Wiring and Protection
|
220.43
|
In office buildings, the receptacle loads shall be calculated to be the larger of the following: The calculated load from 220.14(1) after Table 220.47 demand factors have been applied11 volt-amperes/m2 or 1 volt-ampere/ft2 [220.43](https://2023.antflix.net#220.43)
|
https://2023.antflix.net#220.43
|
Chapter 2 Wiring and Protection
|
220.44
|
In guest rooms or guest suites of hotels and motels, the following lighting and receptacle outlets are included in the minimum unit load in Table 220.42(A), and no additional load calculations shall be required for such outlets: All general-use receptacle outlets of 20-ampere rating or less, including receptacles connected to the circuits in 210.11(C)(3) and (C)(4)The receptacle outlets specified in 210.52(E)(3)The lighting outlets specified in 210.70 [220.44](https://2023.antflix.net#220.44)
|
https://2023.antflix.net#220.44
|
Chapter 2 Wiring and Protection
|
220.45
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The demand factors specified in Table 220.45 shall apply to that portion of the total branch-circuit load calculated for general illumination. They shall not be applied in determining the number of branch circuits for general illumination. Table 220.45 Lighting Load Demand Factors Type of Occupancy Portion of Lighting Load to Which Demand Factor Applies (Volt-Amperes) Demand Factor (%) Dwelling units First 3000 at 100 From 3001 to 120,000 at 35 Remainder over 120,000 at 25 Hotels and motels, including apartment houses without provision for cooking by tenants* First 20,000 or less at 60 From 20,001 to 100,000 at 50 Remainder over 100,000 at 35 Warehouses (storage) First 12,500 or less at 100 Remainder over 12,500 at 50 All others Total volt-amperes 100 *The demand factors of this table shall not apply to the calculated load of feeders or services supplying areas in hotels and motels where the entire lighting is likely to be used at one time, as in ballrooms or dining rooms. [220.45](https://2023.antflix.net#220.45)
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https://2023.antflix.net#220.45
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