anthonymeo/NEC-csv · Datasets at Hugging Face

Chapter 3 Wiring Methods and Materials

314.23(A)

An enclosure mounted on a building or other surface shall be rigidly and securely fastened in place. If the surface does not provide rigid and secure support, additional support in accordance with this section shall be provided. [314.23(A)](https://2023.antflix.net#314.23(A))

https://2023.antflix.net#314.23(A)

Chapter 3 Wiring Methods and Materials

314.23(B)

An enclosure supported from a structural member or from grade shall be rigidly supported either directly or by using a metal, polymeric, or wood brace. [314.23(B)](https://2023.antflix.net#314.23(B))

https://2023.antflix.net#314.23(B)

Chapter 3 Wiring Methods and Materials

314.23(B)(1)

Nails and screws, where used as a fastening means, shall secure boxes by using brackets on the outside of the enclosure, or by using mounting holes in the back or in one or more sides of the enclosure, or they shall pass through the interior within 6 mm (1/4 in.) of the back or ends of the enclosure. Screws shall not be permitted to pass through the box unless exposed threads in the box are protected using approved means to avoid abrasion of conductor insulation. Mounting holes made in the field shall be approved. [314.23(B)(1)](https://2023.antflix.net#314.23(B)(1))

https://2023.antflix.net#314.23(B)(1)

Chapter 3 Wiring Methods and Materials

314.23(B)(2)

Metal braces shall be protected against corrosion and formed from metal that is not less than 0.51 mm (0.020 in.) thick uncoated. Wood braces shall have a cross section not less than nominal 25 mm × 50 mm (1 in. × 2 in.). Wood braces in wet locations shall be treated for the conditions. Polymeric braces shall be identified as being suitable for the use. [314.23(B)(2)](https://2023.antflix.net#314.23(B)(2))

https://2023.antflix.net#314.23(B)(2)

Chapter 3 Wiring Methods and Materials

314.23(C)

An enclosure mounted in a finished surface shall be rigidly secured thereto by clamps, anchors, or fittings identified for the application. [314.23(C)](https://2023.antflix.net#314.23(C))

https://2023.antflix.net#314.23(C)

Chapter 3 Wiring Methods and Materials

314.23(D)

An enclosure mounted to structural or supporting elements of a suspended ceiling shall be not more than 1650 cm3 (100 in.3) in size and shall be securely fastened in place in accordance with either 314.23(D)(1) or (D)(2). [314.23(D)](https://2023.antflix.net#314.23(D))

https://2023.antflix.net#314.23(D)

Chapter 3 Wiring Methods and Materials

314.23(D)(1)

An enclosure shall be fastened to the framing members by mechanical means such as bolts, screws, or rivets, or by the use of clips or other securing means identified for use with the type of ceiling framing member(s) and enclosure(s) employed. The framing members shall be supported in an approved manner and securely fastened to each other and to the building structure. [314.23(D)(1)](https://2023.antflix.net#314.23(D)(1))

https://2023.antflix.net#314.23(D)(1)

Chapter 3 Wiring Methods and Materials

314.23(D)(2)

The installation shall comply with 300.11(B). The enclosure shall be secured, using identified methods, to ceiling support wire(s), including any additional support wire(s) installed for ceiling support. Support wire(s) used for enclosure support shall be fastened at each end so as to be taut within the ceiling cavity. [314.23(D)(2)](https://2023.antflix.net#314.23(D)(2))

https://2023.antflix.net#314.23(D)(2)

Chapter 3 Wiring Methods and Materials

314.23(E)

An enclosure that does not contain a device(s), other than splicing devices, or supports a luminaire(s), a lampholder, or other equipment and is supported by entering raceways shall not exceed 1650 cm3 (100 in.3) in size. It shall have threaded entries or identified hubs. It shall be supported by two or more conduits threaded wrenchtight into the enclosure or hubs. Each conduit shall be secured within 900 mm (3 ft) of the enclosure, or within 450 mm (18 in.) of the enclosure if all conduit entries are on the same side. Exception: The following wiring methods shall be permitted to support a conduit body of any size, including a conduit body constructed with only one conduit entry, provided that the trade size of the conduit body is not larger than the largest trade size of the conduit or tubing: (1) Intermediate metal conduit, IMC (2) Rigid metal conduit, RMC (3) Rigid polyvinyl chloride conduit, PVC (4) Reinforced thermosetting resin conduit, RTRC (5) Electrical metallic tubing, EMT [314.23(E)](https://2023.antflix.net#314.23(E))

https://2023.antflix.net#314.23(E)

Chapter 3 Wiring Methods and Materials

314.23(F)

An enclosure that contains a device(s), other than splicing devices, or supports a luminaire(s), a lampholder, or other equipment and is supported by entering raceways shall not exceed 1650 cm3 (100 in.3) in size. It shall have threaded entries or identified hubs. It shall be supported by two or more conduits threaded wrenchtight into the enclosure or hubs. Each conduit shall be secured within 450 mm (18 in.) of the enclosure. Exception No. 1: Rigid metal or intermediate metal conduit shall be permitted to support a conduit body of any size, including a conduit body constructed with only one conduit entry, provided the trade size of the conduit body is not larger than the largest trade size of the conduit. Exception No. 2: An unbroken length(s) of rigid or intermediate metal conduit shall be permitted to support a box used for luminaire or lampholder support, or to support a wiring enclosure that is an integral part of a luminaire and used in lieu of a box in accordance with 300.15(B), where all of the following conditions are met: (1) The conduit is securely fastened at a point so that the length of conduit beyond the last point of conduit support does not exceed 900 mm (3 ft). (2) The unbroken conduit length before the last point of conduit support is 300 mm (12 in.) or greater, and that portion of the conduit is securely fastened at some point not less than 300 mm (12 in.) from its last point of support. (3) Where accessible to unqualified persons, the luminaire or lampholder, measured to its lowest point, is at least 2.5 m (8 ft) above grade or standing area and at least 900 mm (3 ft) measured horizontally to the 2.5 m (8 ft) elevation from windows, doors, porches, fire escapes, or similar locations. (4) A luminaire supported by a single conduit does not exceed 300 mm (12 in.) in any direction from the point of conduit entry. (5) The weight supported by any single conduit does not exceed 9 kg (20 lb). (6) At the luminaire or lampholder end, the conduit(s) is threaded wrenchtight into the box, conduit body, integral wiring enclosure, or identified hubs. Where, a box or conduit body is used for support, the luminaire shall be secured directly to the box or conduit body, or through a threaded conduit nipple not over 75 mm (3 in.) long. [314.23(F)](https://2023.antflix.net#314.23(F))

https://2023.antflix.net#314.23(F)

Chapter 3 Wiring Methods and Materials

314.23(G)

An enclosure supported by embedment shall be identified as suitably protected from corrosion and securely embedded in concrete or masonry. [314.23(G)](https://2023.antflix.net#314.23(G))

https://2023.antflix.net#314.23(G)

Chapter 3 Wiring Methods and Materials

314.23(H)

An enclosure supported by a pendant shall comply with 314.23(H)(1) or (H)(2). [314.23(H)](https://2023.antflix.net#314.23(H))

https://2023.antflix.net#314.23(H)

Chapter 3 Wiring Methods and Materials

314.23(H)(1)

A box shall be supported from a multiconductor cord or cable in an approved manner that protects the conductors against strain. A connection to a box equipped with a hub shall be made with a listed cord grip attachment fitting marked for use with a threaded hub. [314.23(H)(1)](https://2023.antflix.net#314.23(H)(1))

https://2023.antflix.net#314.23(H)(1)

Chapter 3 Wiring Methods and Materials

314.23(H)(2)

A box supporting lampholders or luminaires, or wiring enclosures within luminaires used in lieu of boxes in accordance with 300.15(B), shall be supported by rigid or intermediate metal conduit stems. For stems longer than 450 mm (18 in.), the stems shall be connected to the wiring system with listed swivel hangers suitable for the location. At the luminaire end, the conduit(s) shall be threaded wrenchtight into the box, wiring enclosure, or identified hubs. Where supported by only a single conduit, the threaded joints shall be prevented from loosening by the use of setscrews or other effective means, or the luminaire, at any point, shall be at least 2.5 m (8 ft) above grade or standing area and at least 900 mm (3 ft) measured horizontally to the 2.5 m (8 ft) elevation from windows, doors, porches, fire escapes, or similar locations. A luminaire supported by a single conduit shall not exceed 300 mm (12 in.) in any horizontal direction from the point of conduit entry. [314.23(H)(2)](https://2023.antflix.net#314.23(H)(2))

https://2023.antflix.net#314.23(H)(2)

Chapter 3 Wiring Methods and Materials

314.24

Outlet and device boxes shall have approved dimensions to allow equipment installed within them to be mounted properly and without likelihood of damage to conductors within the box. [314.24](https://2023.antflix.net#314.24)

https://2023.antflix.net#314.24

Chapter 3 Wiring Methods and Materials

314.24(A)

Outlet boxes that do not enclose devices or utilization equipment shall have a minimum internal depth of 12.7 mm (1/2 in.). [314.24(A)](https://2023.antflix.net#314.24(A))

https://2023.antflix.net#314.24(A)

Chapter 3 Wiring Methods and Materials

314.24(B)

Outlet and device boxes that enclose devices or utilization equipment shall have a minimum internal depth that accommodates the rearward projection of the equipment and the size of the conductors that supply the equipment. The internal depth shall include, where used, that of any extension boxes, plaster rings, or raised covers. The internal depth shall comply with 314.24(B)(1) through (B)(5) as applicable. [314.24(B)](https://2023.antflix.net#314.24(B))

https://2023.antflix.net#314.24(B)

Chapter 3 Wiring Methods and Materials

314.24(B)(1)

Boxes that enclose devices or utilization equipment that projects more than 48 mm (17/8 in.) rearward from the mounting plane of the box shall have a depth that is not less than the depth of the equipment plus 6 mm (1/4 in.). [314.24(B)(1)](https://2023.antflix.net#314.24(B)(1))

https://2023.antflix.net#314.24(B)(1)

Chapter 3 Wiring Methods and Materials

314.24(B)(2)

Boxes that enclose devices or utilization equipment supplied by conductors larger than 4 AWG shall be identified for their specific function. Exception: Devices or utilization equipment supplied by conductors larger than 4 AWG shall be permitted to be mounted on or in junction and pull boxes larger than 1650 cm3 (100 in.3) if the spacing at the terminals meets the requirements of 312.6. [314.24(B)(2)](https://2023.antflix.net#314.24(B)(2))

https://2023.antflix.net#314.24(B)(2)

Chapter 3 Wiring Methods and Materials

314.24(B)(3)

Boxes that enclose devices or utilization equipment supplied by 8, 6, or 4 AWG conductors shall have an internal depth that is not less than 52.4 mm (21/16 in.). [314.24(B)(3)](https://2023.antflix.net#314.24(B)(3))

https://2023.antflix.net#314.24(B)(3)

Chapter 3 Wiring Methods and Materials

314.24(B)(4)

Boxes that enclose devices or utilization equipment supplied by 12 or 10 AWG conductors shall have an internal depth that is not less than 30.2 mm (13/16 in.). Where the equipment projects rearward from the mounting plane of the box by more than 25 mm (1 in.), the box shall have a depth not less than that of the equipment plus 6 mm (1/4 in.). Where wiring enters the center portion of the rear of a box opposite to the equipment, the minimum clearance shall be increased to 13 mm (1/2 in.) [314.24(B)(4)](https://2023.antflix.net#314.24(B)(4))

https://2023.antflix.net#314.24(B)(4)

Chapter 3 Wiring Methods and Materials

314.24(B)(5)

Boxes that enclose devices or utilization equipment supplied by 14 AWG or smaller conductors shall have a depth that is not less than 23.8 mm (15/16 in.). Exception: Under any of the conditions specified in 314.24(B)(1) through (B)(5), devices or utilization equipment that is listed to be installed with specified boxes shall be permitted. [314.24(B)(5)](https://2023.antflix.net#314.24(B)(5))

https://2023.antflix.net#314.24(B)(5)

Chapter 3 Wiring Methods and Materials

314.24(C)

Where devices or equipment are mounted in boxes having side-wiring entries, the conductors entering from the side shall be protected as covered in (1) or (2), as follows. The term side applies to any wall of a box other than the one opposite to the opening. The rearward projection of the device or equipment shall not extend beyond the centerline of the wiring knockout or other entry.The clearance from the box wall to the installed device or equipment shall be not less than 13 mm (1/2 in.). [314.24(C)](https://2023.antflix.net#314.24(C))

https://2023.antflix.net#314.24(C)

Chapter 3 Wiring Methods and Materials

314.25

In completed installations, each box shall have a cover, faceplate, lampholder, or luminaire canopy, except where the installation complies with 410.24(B). Conduit body enclosures shall be installed with a cover, lampholder, or device. Screws used for the purpose of attaching covers, or other equipment, to the box shall be either machine screws matching the thread gauge and size that is integral to the box or shall be in accordance with the manufacturer's instructions. [314.25](https://2023.antflix.net#314.25)

https://2023.antflix.net#314.25

Chapter 3 Wiring Methods and Materials

314.25(A)

Nonmetallic or metal covers and plates shall be permitted. Where metal covers or plates are used, they shall be connected to the equipment grounding conductor in accordance with 250.110. Informational Note: See 410.42 for metal luminaire canopies and 404.12 and 406.6(B) for metal faceplates for additional grounding requirements. [314.25(A)](https://2023.antflix.net#314.25(A))

https://2023.antflix.net#314.25(A)

Chapter 3 Wiring Methods and Materials

314.25(B)

Where a luminaire canopy or pan is used, any combustible wall or ceiling finish exposed between the edge of the canopy or pan and the outlet box shall be covered with noncombustible material if required by 410.23. [314.25(B)](https://2023.antflix.net#314.25(B))

https://2023.antflix.net#314.25(B)

Chapter 3 Wiring Methods and Materials

314.25(C)

Covers of outlet boxes and conduit bodies having holes through which flexible cord pendants pass shall be provided with identified bushings or shall have smooth, well-rounded surfaces on which the cords can bear. So-called hard rubber or composition bushings shall not be used. [314.25(C)](https://2023.antflix.net#314.25(C))

https://2023.antflix.net#314.25(C)

Chapter 3 Wiring Methods and Materials

314.27(A)

Outlet boxes or fittings designed for the support of luminaires and lampholders, and installed as required by 314.23, shall be permitted to support a luminaire or lampholder. [314.27(A)](https://2023.antflix.net#314.27(A))

https://2023.antflix.net#314.27(A)

Chapter 3 Wiring Methods and Materials

314.27(A)(1)

Boxes used at luminaire or lampholder outlets in or on a vertical surface shall be identified and marked on the interior of the box to indicate the maximum weight of the luminaire that is permitted to be supported by the box if other than 23 kg (50 lb). Exception: A vertically mounted luminaire or lampholder weighing not more than 3 kg (6 lb) shall be permitted to be supported on other boxes or plaster rings that are secured to other boxes, provided that the luminaire or its supporting yoke, or the lampholder, is secured to the box with no fewer than two No. 6 or larger screws. [314.27(A)(1)](https://2023.antflix.net#314.27(A)(1))

https://2023.antflix.net#314.27(A)(1)

Chapter 3 Wiring Methods and Materials

314.27(A)(2)

At every outlet used exclusively for lighting, the box shall be designed or installed so that a luminaire or lampholder can be attached. Boxes shall be required to support a luminaire weighing a minimum of 23 kg (50 lb). A luminaire that weighs more than 23 kg (50 lb) shall be supported independently of the outlet box, unless the outlet box is listed for not less than the weight to be supported. The interior of the box shall be marked by the manufacturer to indicate the maximum weight the box shall be permitted to support. [314.27(A)(2)](https://2023.antflix.net#314.27(A)(2))

https://2023.antflix.net#314.27(A)(2)

Chapter 3 Wiring Methods and Materials

314.27(B)

Boxes listed specifically for this application shall be used for receptacles located in the floor. Exception: Where the authority having jurisdiction judges them free from likely exposure to physical damage, moisture, and dirt, boxes located in elevated floors of show windows and similar locations shall be permitted to be other than those listed for floor applications. Receptacles and covers shall be listed as an assembly for this type of location. [314.27(B)](https://2023.antflix.net#314.27(B))

https://2023.antflix.net#314.27(B)

Chapter 3 Wiring Methods and Materials

314.27(C)

Outlet boxes or outlet box systems used as the sole support of a ceiling-suspended (paddle) fan shall be listed, shall be marked by their manufacturer on the interior of the box as suitable for this purpose, and shall not support ceiling-suspended (paddle) fans that weigh more than 32 kg (70 lb). For outlet boxes or outlet box systems designed to support ceiling-suspended (paddle) fans that weigh more than 16 kg (35 lb), the required marking shall include the maximum weight to be supported. Outlet boxes mounted in the ceilings of habitable rooms of dwelling occupancies in a location acceptable for the installation of a ceiling-suspended (paddle) fan shall comply with one of the following:Listed for the sole support of ceiling-suspended (paddle) fansInstalled so as to allow direct access through the box to structural framing capable of supporting a ceiling-suspended (paddle) fan without removing the box [314.27(C)](https://2023.antflix.net#314.27(C))

https://2023.antflix.net#314.27(C)

Chapter 3 Wiring Methods and Materials

314.27(D)

Boxes used for the support of utilization equipment other than ceiling-suspended (paddle) fans shall meet the requirements of 314.27(A) for the support of a luminaire that is the same size and weight. Exception: Utilization equipment weighing not more than 3 kg (6 lb) shall be permitted to be supported on other boxes or plaster rings that are secured to other boxes, provided the equipment or its supporting yoke is secured to the box with no fewer than two No. 6 or larger screws. [314.27(D)](https://2023.antflix.net#314.27(D))

https://2023.antflix.net#314.27(D)

Chapter 3 Wiring Methods and Materials

314.27(E)

Outlet boxes required in 314.27 shall be permitted to support listed weight-supporting ceiling receptacles (WSCR). A WSCR shall be used in combination with compatible weight-supporting attachment fittings (WSAF) that are identified for the support of equipment within the weight and mounting orientation limits of the listing. Where the WSCR is installed, it shall be included in the box fill calculation covered in 314.16(B)(4). Listed WSCR used in combination with compatible WSAF shall be permitted to be installed in outlet boxes for the sole support of ceiling-suspended (paddle) fans, in accordance with 314.27(C). Informational Note: See ANSI/NEMA WD-6, American National Standard for Wiring Devices—Dimensional Specifications, for standard configurations of weight-supporting ceiling receptacles and weight-supporting attachment fittings. [314.27(E)](https://2023.antflix.net#314.27(E))

https://2023.antflix.net#314.27(E)

Chapter 3 Wiring Methods and Materials

314.28

Boxes and conduit bodies used as pull or junction boxes shall comply with 314.28(A) through (E). Exception: Terminal housings supplied with motors shall comply with the provisions of 430.12. [314.28](https://2023.antflix.net#314.28)

https://2023.antflix.net#314.28

Chapter 3 Wiring Methods and Materials

314.28(A)

For raceways containing conductors of 4 AWG or larger that are required to be insulated, and for cables containing conductors of 4 AWG or larger, the minimum dimensions of pull or junction boxes installed in a raceway or cable run shall comply with 314.28(A)(1) through (A)(3). Where an enclosure dimension is to be calculated based on the diameter of entering raceways, the diameter shall be the metric designator (trade size) expressed in the units of measurement employed. [314.28(A)](https://2023.antflix.net#314.28(A))

https://2023.antflix.net#314.28(A)

Chapter 3 Wiring Methods and Materials

314.28(A)(1)

In straight pulls, the length of the box or conduit body shall not be less than eight times the metric designator (trade size) of the largest raceway. [314.28(A)(1)](https://2023.antflix.net#314.28(A)(1))

https://2023.antflix.net#314.28(A)(1)

Chapter 3 Wiring Methods and Materials

314.28(A)(2)

Where splices or where angle or U pulls are made, the distance between each raceway entry inside the box or conduit body and the opposite wall of the box or conduit body shall not be less than six times the metric designator (trade size) of the largest raceway in a row. This distance shall be increased for additional entries by the amount of the sum of the diameters of all other raceway entries in the same row on the same wall of the box. Each row shall be calculated individually, and the single row that provides the maximum distance shall be used. Exception: Where a raceway or cable entry is in the wall of a box or conduit body opposite a removable cover, the distance from that wall to the cover shall be permitted to comply with the distance required for one wire per terminal in Table 312.6(A). The distance between raceway entries enclosing the same conductor shall not be less than six times the metric designator (trade size) of the larger raceway. When transposing cable size into raceway size in 314.28(A)(1) and (A)(2), the minimum metric designator (trade size) raceway required for the number and size of conductors in the cable shall be used. [314.28(A)(2)](https://2023.antflix.net#314.28(A)(2))

https://2023.antflix.net#314.28(A)(2)

Chapter 3 Wiring Methods and Materials

314.28(A)(3)

Listed boxes or listed conduit bodies of dimensions less than those required in 314.28(A)(1) and (A)(2) shall be permitted for installations of combinations of conductors that are less than the maximum conduit or tubing fill (of conduits or tubing being used) permitted by Table 1 of Chapter 9. Listed conduit bodies of dimensions less than those required in 314.28(A)(2), and having a radius of the curve to the centerline not less than that indicated in Table 2 of Chapter 9 for one-shot and full-shoe benders, shall be permitted for installations of combinations of conductors permitted by Table 1 of Chapter 9. These conduit bodies shall be marked to show they have been specifically evaluated in accordance with this provision. Where the permitted combinations of conductors for which the box or conduit body has been listed are less than the maximum conduit or tubing fill permitted by Table 1 of Chapter 9, the box or conduit body shall be permanently marked with the maximum number and maximum size of conductors permitted. For other conductor sizes and combinations, the total cross-sectional area of the fill shall not exceed the cross-sectional area of the conductors specified in the marking, based on the type of conductor identified as part of the product listing. Informational Note: Unless otherwise specified, the applicable product standards evaluate the fill markings covered here based on conductors with Type XHHW insulation. [314.28(A)(3)](https://2023.antflix.net#314.28(A)(3))

https://2023.antflix.net#314.28(A)(3)

Chapter 3 Wiring Methods and Materials

314.28(B)

In pull boxes or junction boxes having any dimension over 1.8 m (6 ft), all conductors shall be cabled or racked up in an approved manner. [314.28(B)](https://2023.antflix.net#314.28(B))

https://2023.antflix.net#314.28(B)

Chapter 3 Wiring Methods and Materials

314.28(C)

All pull boxes, junction boxes, and conduit bodies shall be provided with covers compatible with the box or conduit body construction and suitable for the conditions of use. Where used, metal covers shall comply with the grounding requirements of 250.110. [314.28(C)](https://2023.antflix.net#314.28(C))

https://2023.antflix.net#314.28(C)

Chapter 3 Wiring Methods and Materials

314.28(D)

Where permanent barriers are installed in a box, each section shall be considered as a separate box. [314.28(D)](https://2023.antflix.net#314.28(D))

https://2023.antflix.net#314.28(D)

Chapter 3 Wiring Methods and Materials

314.28(E)

Power distribution blocks shall be permitted in pull and junction boxes over 1650 cm3 (100 in.3) for connections of conductors where installed in boxes and where the installation complies with 314.28(E)(1) through (E)(5). Exception: Equipment grounding terminal bars shall be permitted in smaller enclosures. [314.28(E)](https://2023.antflix.net#314.28(E))

https://2023.antflix.net#314.28(E)

Chapter 3 Wiring Methods and Materials

314.28(E)(1)

Power distribution blocks installed in boxes shall be listed. [314.28(E)(1)](https://2023.antflix.net#314.28(E)(1))

https://2023.antflix.net#314.28(E)(1)

Chapter 3 Wiring Methods and Materials

314.28(E)(2)

In addition to the overall size requirement in the first sentence of 314.28(A)(2), the power distribution block shall be installed in a box with dimensions not smaller than specified in the installation instructions of the power distribution block. [314.28(E)(2)](https://2023.antflix.net#314.28(E)(2))

https://2023.antflix.net#314.28(E)(2)

Chapter 3 Wiring Methods and Materials

314.28(E)(3)

Wire bending space at the terminals of power distribution blocks shall comply with 312.6. [314.28(E)(3)](https://2023.antflix.net#314.28(E)(3))

https://2023.antflix.net#314.28(E)(3)

Chapter 3 Wiring Methods and Materials

314.28(E)(4)

Power distribution blocks shall not have uninsulated live parts exposed within a box, whether or not the box cover is installed. [314.28(E)(4)](https://2023.antflix.net#314.28(E)(4))

https://2023.antflix.net#314.28(E)(4)

Chapter 3 Wiring Methods and Materials

314.28(E)(5)

Where the pull or junction boxes are used for conductors that do not terminate on the power distribution block(s), the through conductors shall be arranged so the power distribution block terminals are unobstructed following installation. [314.28(E)(5)](https://2023.antflix.net#314.28(E)(5))

https://2023.antflix.net#314.28(E)(5)

Chapter 3 Wiring Methods and Materials

314.29

Boxes, conduit bodies, and handhole enclosures shall be installed so that wiring and devices contained in the boxes, conduit bodies, or handhole enclosures can be rendered accessible in accordance with 314.29(A) and (B). [314.29](https://2023.antflix.net#314.29)

https://2023.antflix.net#314.29

Chapter 3 Wiring Methods and Materials

314.29(A)

Boxes and conduit bodies shall be installed so the contained wiring and devices are accessible. [314.29(A)](https://2023.antflix.net#314.29(A))

https://2023.antflix.net#314.29(A)

Chapter 3 Wiring Methods and Materials

314.29(B)

Underground boxes and handhole enclosures shall be installed so they are accessible without excavating sidewalks, paving, earth, or other substance that is to be used to establish the finished grade. Exception: Listed boxes and handhole enclosures shall be permitted where covered by gravel, light aggregate, or noncohesive granulated soil if their location is effectively described and accessible for excavation. The location description shall be available to those authorized to access, maintain, or inspect the wiring. [314.29(B)](https://2023.antflix.net#314.29(B))

https://2023.antflix.net#314.29(B)

Chapter 3 Wiring Methods and Materials

314.30

Handhole enclosures shall be designed and installed to withstand all loads likely to be imposed on them. They shall be identified for use in underground systems. Informational Note: See ANSI/SCTE 77-2013, Specification for Underground Enclosure Integrity, for additional information on deliberate and nondeliberate traffic loading that can be expected to bear on underground enclosures. [314.30](https://2023.antflix.net#314.30)

https://2023.antflix.net#314.30

Chapter 3 Wiring Methods and Materials

314.30(A)

Handhole enclosures shall be sized in accordance with 314.28(A) for conductors operating at 1000 volts or below, and in accordance with 314.71 for conductors operating at over 1000 volts. For handhole enclosures without bottoms where the provisions of 314.28(A)(2), Exception, or 314.71(B)(1), Exception No. 1, apply, the measurement to the removable cover shall be taken from the end of the conduit or cable assembly. [314.30(A)](https://2023.antflix.net#314.30(A))

https://2023.antflix.net#314.30(A)

Chapter 3 Wiring Methods and Materials

314.30(B)

Underground raceways and cable assemblies entering a handhole enclosure shall extend into the enclosure, but they shall not be required to be mechanically connected to the enclosure. [314.30(B)](https://2023.antflix.net#314.30(B))

https://2023.antflix.net#314.30(B)

Chapter 3 Wiring Methods and Materials

314.30(C)

All enclosed conductors and any splices or terminations, if present, shall be listed as suitable for wet locations. [314.30(C)](https://2023.antflix.net#314.30(C))

https://2023.antflix.net#314.30(C)

Chapter 3 Wiring Methods and Materials

314.30(D)

Handhole enclosure covers shall have an identifying mark or logo that prominently identifies the function of the enclosure, such as "electric." Handhole enclosure covers shall require the use of tools to open, or they shall weigh over 45 kg (100 lb). Metal covers and other exposed conductive surfaces shall be bonded in accordance with 250.92 if the conductors in the handhole are service conductors, or in accordance with 250.96(A) if the conductors in the handhole are feeder or branch-circuit conductors. [314.30(D)](https://2023.antflix.net#314.30(D))

https://2023.antflix.net#314.30(D)

Chapter 3 Wiring Methods and Materials

314.70(A)

Where pull and junction boxes are used on systems over 1000 volts, the installation shall comply with Part III and with the following general provisions of this article: Part I, 314.2, 314.3, 314.4, and 314.5Part II, 314.15; 314.17; 314.20; 314.23(A), (B), or (G); 314.28(B); and 314.29Part III, 314.100(A) and (C); and 314.101 [314.70(A)](https://2023.antflix.net#314.70(A))

https://2023.antflix.net#314.70(A)

Chapter 3 Wiring Methods and Materials

314.70(B)

Where conduit bodies are used on systems over 1000 volts, the installation shall comply with Part III and with the following general provisions of this article: Part I, 314.4, and 314.5Part II, 314.15; 314.17; 314.23(A), (E), or (G); 314.28(A)(3); and 314.29Part III, 314.100(A) and 314.101 [314.70(B)](https://2023.antflix.net#314.70(B))

https://2023.antflix.net#314.70(B)

Chapter 3 Wiring Methods and Materials

314.70(C)

Where handhole enclosures are used on systems over 1000 volts, the installation shall comply with Part III and with the following general provisions of this article: Part I, 314.3, 314.4, and 314.5Part II, 314.15, 314.17, 314.23(G), 314.28(B), 314.29, and 314.30 [314.70(C)](https://2023.antflix.net#314.70(C))

https://2023.antflix.net#314.70(C)

Chapter 3 Wiring Methods and Materials

314.71

Pull and junction boxes and handhole enclosures shall provide approved space and dimensions for the installation of conductors, and they shall comply with the specific requirements of this section. Conduit bodies shall be permitted if they meet the dimensional requirements for boxes. [314.71](https://2023.antflix.net#314.71)

https://2023.antflix.net#314.71

Chapter 3 Wiring Methods and Materials

314.71(A)

The length of the box shall not be less than 48 times the outside diameter, over sheath, of the largest shielded or lead-covered conductor or cable entering the box. The length shall not be less than 32 times the outside diameter of the largest nonshielded conductor or cable. [314.71(A)](https://2023.antflix.net#314.71(A))

https://2023.antflix.net#314.71(A)

Chapter 3 Wiring Methods and Materials

314.71(B)(1)

The distance between each cable or conductor entry inside the box and the opposite wall of the box shall not be less than 36 times the outside diameter, over sheath, of the largest cable or conductor. This distance shall be increased for additional entries by the amount of the sum of the outside diameters, over sheath, of all other cables or conductor entries through the same wall of the box. Exception No. 1: Where a conductor or cable entry is in the wall of a box opposite a removable cover, the distance from that wall to the cover shall be permitted to be not less than the bending radius for the conductors as provided in 305.5. Exception No. 2: Where cables are nonshielded and not lead covered, the distance of 36 times the outside diameter shall be permitted to be reduced to 24 times the outside diameter. [314.71(B)(1)](https://2023.antflix.net#314.71(B)(1))

https://2023.antflix.net#314.71(B)(1)

Chapter 3 Wiring Methods and Materials

314.71(B)(2)

The distance between a cable or conductor entry and its exit from the box shall not be less than 36 times the outside diameter, over sheath, of that cable or conductor. Exception: Where cables are nonshielded and not lead covered, the distance of 36 times the outside diameter shall be permitted to be reduced to 24 times the outside diameter. [314.71(B)(2)](https://2023.antflix.net#314.71(B)(2))

https://2023.antflix.net#314.71(B)(2)

Chapter 3 Wiring Methods and Materials

314.71(C)

One or more sides of any pull box shall be removable. [314.71(C)](https://2023.antflix.net#314.71(C))

https://2023.antflix.net#314.71(C)

Chapter 3 Wiring Methods and Materials

314.72(A)

Boxes shall be made of material inherently resistant to corrosion or shall be suitably protected, both internally and externally, by enameling, galvanizing, plating, or other means. [314.72(A)](https://2023.antflix.net#314.72(A))

https://2023.antflix.net#314.72(A)

Chapter 3 Wiring Methods and Materials

314.72(B)

Suitable bushings, shields, or fittings having smooth, rounded edges shall be provided where conductors or cables pass through partitions and at other locations where necessary. [314.72(B)](https://2023.antflix.net#314.72(B))

https://2023.antflix.net#314.72(B)

Chapter 3 Wiring Methods and Materials

314.72(C)

Boxes shall provide a complete enclosure for the contained conductors or cables. [314.72(C)](https://2023.antflix.net#314.72(C))

https://2023.antflix.net#314.72(C)

Chapter 3 Wiring Methods and Materials

314.72(D)

Boxes and conduit bodies shall be installed so that the conductors are accessible without removing any fixed part of the building or structure. Working space shall be provided in accordance with 110.34. [314.72(D)](https://2023.antflix.net#314.72(D))

https://2023.antflix.net#314.72(D)

Chapter 3 Wiring Methods and Materials

314.72(E)

Boxes shall be closed by suitable covers securely fastened in place. Underground box covers that weigh over 45 kg (100 lb) shall be considered meeting this requirement. Covers for boxes shall be permanently marked "DANGER - HIGH VOLTAGE - KEEP OUT." The marking shall be on the outside of the box cover and shall be readily visible. Letters shall be block type and at least 13 mm (1/2 in.) in height. [314.72(E)](https://2023.antflix.net#314.72(E))

https://2023.antflix.net#314.72(E)

Chapter 3 Wiring Methods and Materials

314.72(F)

Boxes and their covers shall be capable of withstanding the handling to which they are likely to be subjected. [314.72(F)](https://2023.antflix.net#314.72(F))

https://2023.antflix.net#314.72(F)

Chapter 3 Wiring Methods and Materials

314.100(A)

Metal boxes, conduit bodies, and fittings shall be corrosion resistant or shall be well-galvanized, enameled, or otherwise properly coated inside and out to prevent corrosion. Informational Note: See 300.6 for limitation in the use of boxes and fittings protected from corrosion solely by enamel. [314.100(A)](https://2023.antflix.net#314.100(A))

https://2023.antflix.net#314.100(A)

Chapter 3 Wiring Methods and Materials

314.100(B)

Sheet steel boxes not over 1650 cm3 (100 in.3) in size shall be made from steel not less than 1.59 mm (0.0625 in.) thick. The wall of a malleable iron box or conduit body and a die-cast or permanent-mold cast aluminum, brass, bronze, or zinc box or conduit body shall not be less than 2.38 mm (3/32 in.) thick. Other cast metal boxes or conduit bodies shall have a wall thickness not less than 3.17 mm (1/8 in.). Exception No. 1: Listed boxes and conduit bodies shown to have equivalent strength and characteristics shall be permitted to be made of thinner or other metals. Exception No. 2: The walls of listed short radius conduit bodies, as covered in 314.16(C)(2), shall be permitted to be made of thinner metal. [314.100(B)](https://2023.antflix.net#314.100(B))

https://2023.antflix.net#314.100(B)

Chapter 3 Wiring Methods and Materials

314.100(C)

Metal boxes over 1650 cm3 (100 in.3) in size shall be constructed so as to be of ample strength and rigidity. If of sheet steel, the metal thickness shall not be less than 1.35 mm (0.053 in.) uncoated. [314.100(C)](https://2023.antflix.net#314.100(C))

https://2023.antflix.net#314.100(C)

Chapter 3 Wiring Methods and Materials

314.100(D)

A means shall be provided in each metal box for the connection of an equipment grounding conductor. The means shall be permitted to be a tapped hole or equivalent. [314.100(D)](https://2023.antflix.net#314.100(D))

https://2023.antflix.net#314.100(D)

Chapter 3 Wiring Methods and Materials

314.101

Metal covers shall be of the same material as the box or conduit body with which they are used, or they shall be lined with firmly attached insulating material that is not less than 0.79 mm (1/32 in.) thick, or they shall be listed for the purpose. Metal covers shall be the same thickness as the boxes or conduit body for which they are used, or they shall be listed for the purpose. Covers of porcelain or other approved insulating materials shall be permitted if of such form and thickness as to afford the required protection and strength. [314.101](https://2023.antflix.net#314.101)

https://2023.antflix.net#314.101

Chapter 3 Wiring Methods and Materials

314.102

Covers of outlet boxes and conduit bodies having holes through which flexible cord pendants pass shall be provided with approved bushings or shall have smooth, well-rounded surfaces on which the cord will bear. Where individual conductors pass through a metal cover, a separate hole equipped with a bushing of suitable insulating material shall be provided for each conductor. Such separate holes shall be connected by a slot as required by 300.20. [314.102](https://2023.antflix.net#314.102)

https://2023.antflix.net#314.102

Chapter 3 Wiring Methods and Materials

314.103

Provisions for supports or other mounting means for nonmetallic boxes shall be outside of the box, or the box shall be constructed so as to prevent contact between the conductors in the box and the supporting screws. [314.103](https://2023.antflix.net#314.103)

https://2023.antflix.net#314.103

Chapter 3 Wiring Methods and Materials

314.104

All boxes and conduit bodies, covers, extension rings, plaster rings, and the like shall be durably and legibly marked with the manufacturer's name or trademark. [314.104](https://2023.antflix.net#314.104)

https://2023.antflix.net#314.104

Chapter 3 Wiring Methods and Materials

315.1

This article covers the use, installation, construction specifications, and ampacities for Type MV medium voltage conductors, cable, cable joints, and cable terminations. This article includes voltages from 2001 volts to 35,000 volts ac, nominal and 2001 volts to 2500 volts dc, nominal. [315.1](https://2023.antflix.net#315.1)

https://2023.antflix.net#315.1

Chapter 3 Wiring Methods and Materials

315.6

Type MV cables, type MV cable joints, type MV cable terminations, connectors, and associated fittings shall be listed. The listing requirement for Type MV cable joints, cable terminations, and connectors shall be effective January 1, 2026. [315.6](https://2023.antflix.net#315.6)

https://2023.antflix.net#315.6

Chapter 3 Wiring Methods and Materials

315.10

Type MV cables shall comply with the applicable provisions in 315.10(A) through (C). [315.10](https://2023.antflix.net#315.10)

https://2023.antflix.net#315.10

Chapter 3 Wiring Methods and Materials

315.10(A)

Conductor application and insulation shall comply with Table 315.10(A). Table 315.10(A) Conductor Application and Insulation Rated 2001 Volts and Higher Trade Name Type Letter Maximum Operating Temperature Application Provision Insulation Outer Covering Medium voltage solid dielectric MV-90 MV-105* 90°C 105°C Dry or wet locations Thermoplastic or thermosetting Jacket, sheath, or armor *Where design conditions require maximum conductor temperatures above 90°C. [315.10(A)](https://2023.antflix.net#315.10(A))

https://2023.antflix.net#315.10(A)

Chapter 3 Wiring Methods and Materials

315.10(B)

Thickness of insulation and jacket for nonshielded solid dielectric insulated conductors rated 2001 volts to 5000 volts shall comply with Table 315.10(B).Table 315.10(B) Thickness of Insulation and Jacket for Nonshielded Solid Dielectric Insulated Conductors Rated 2001 Volts to 5000 Volts Conductor Size (AWG or kcmil) Dry Locations, Single Conductor Wet or Dry Locations Without Jacket Insulation With Jacket Single Conductor Multiconductor Insulation* Insulation Jacket Insulation Jacket mm mils mm mils mm mils mm mils mm mils mm mils 8 2.79 110 2.29 90 0.76 30 3.18 125 2.03 80 2.29 90 6 2.79 110 2.29 90 0.76 30 3.18 125 2.03 80 2.29 90 4—2 2.79 110 2.29 90 1.14 45 3.18 125 2.03 80 2.29 90 1—2/0 2.79 110 2.29 90 1.14 45 3.18 125 2.03 80 2.29 90 3/0—4/0 2.79 110 2.29 90 1.65 65 3.18 125 2.41 95 2.29 90 213—500 3.05 120 2.29 90 1.65 65 3.56 140 2.79 110 2.29 90 501—750 3.30 130 2.29 90 1.65 65 3.94 155 3.18 125 2.29 90 751—1000 3.30 130 2.29 90 1.65 65 3.94 155 3.18 125 2.29 90 1001—1250 3.56 140 2.92 115 1.65 65 4.32 170 3.56 140 2.92 115 1251—1500 3.56 140 2.92 115 2.03 80 4.32 170 3.56 140 2.92 115 1501—2000 3.56 140 2.92 115 2.03 80 4.32 170 3.94 155 3.56 140 *Under a common overall covering such as a jacket, sheath, or armor. [315.10(B)](https://2023.antflix.net#315.10(B))

https://2023.antflix.net#315.10(B)

Chapter 3 Wiring Methods and Materials

315.10(C)

Thickness of insulation for shielded solid dielectric insulated conductors rated 2001 volts to 35,000 volts shall comply with Table 315.10(C) and 315.10(C)(1) through (C)(3).Table 315.10(C) Thickness of Insulation for Shielded Solid Dielectric Insulated Conductors Rated 2001 Volts to 35,000 Volts Conductor Size (AWG or kcmil) 2001—5000 Volts 5001—8000 Volts 8001—15,000 Volts 15,001—25,000 Volts 100 Percent Insulation Level 100 Percent Insulation Level 133 Percent Insulation Level 173 Percent Insulation Level 100 Percent Insulation Level 133 Percent Insulation Level 173 Percent Insulation Level 100 Percent Insulation Level 133 Percent Insulation Level 173 Percent Insulation Level mm mils mm mils mm mils mm mils mm mils mm mils mm mils mm mils mm mils mm mils 8 2.29 90 - - - - - - - - - - - - - - - - - - 6—4 2.29 90 2.92 115 3.56 140 4.45 175 - - - - - - - - - - - - 2 2.29 90 2.92 115 3.56 140 4.45 175 445 175 5.59 220 6.60 260 - - - - - - 1 2.29 90 2.92 115 3.56 140 4.45 175 4.45 175 5.59 220 6.60 260 6.60 260 8.13 320 10.67 420 1/0—2000 2.29 90 2.92 115 3.56 140 4.45 175 4.45 175 5.59 220 6.60 260 6.60 260 8.13 320 10.67 420 Conductor Size (AWG or kcmil) 25,001—28,000 Volts 28,001—35,000 Volts 100 Percent Insulation Level 133 Percent Insulation Level 173 Percent Insulation Level 100 Percent Insulation Level 133 Percent Insulation Level 173 Percent Insulation Level mm mils mm mils mm mils mm mils mm mils mm mils 1 7.11 280 8.76 345 11.30 445 - - - - - - 1/0—2000 7.11 280 8.76 345 11.30 445 8.76 345 10.67 420 14.73 580 [315.10(C)](https://2023.antflix.net#315.10(C))

https://2023.antflix.net#315.10(C)

Chapter 3 Wiring Methods and Materials

315.10(C)(1)

Cables shall be permitted to be applied where the system is provided with relay protection such that ground faults will be cleared as rapidly as possible but, in any case, within 1 minute. These cables are applicable to cable installations that are on grounded systems and shall be permitted to be used on other systems provided the above clearing requirements are met in completely de-energizing the faulted section. [315.10(C)(1)](https://2023.antflix.net#315.10(C)(1))

https://2023.antflix.net#315.10(C)(1)

Chapter 3 Wiring Methods and Materials

315.10(C)(2)

Cables shall be permitted to be applied in situations where the clearing time requirements of the 100 percent level category cannot be met and the faulted section will be de-energized in a time not exceeding 1 hour. Cable shall be permitted to be used in 100 percent insulation level applications where the installation requires additional insulation. [315.10(C)(2)](https://2023.antflix.net#315.10(C)(2))

https://2023.antflix.net#315.10(C)(2)

Chapter 3 Wiring Methods and Materials

315.10(C)(3)

Cables shall be permitted to be applied under all of the following conditions: In industrial establishments where the conditions of maintenance and supervision ensure only qualified persons service the installationWhere the fault clearing time requirements of the 133 percent level category cannot be metWhere an orderly shutdown is required to protect equipment and personnelWhere the faulted section will be de-energized in an orderly shutdownCables shall be permitted to be used in 100 percent or 133 percent insulation level applications where the installation requires additional insulation.Informational Note: See UL 1072, Medium-Voltage Power Cable, ANSI/ICEA S-93-639, American National Standard for 5-46kV Shielded Power Cable for Use in the Transmission and Distribution of Electric Energy, and ICEA S-94-649 2013, Standard for Concentric Neutral Cables Rated 5 through 46 kV for Medium Voltage Cables. [315.10(C)(3)](https://2023.antflix.net#315.10(C)(3))

https://2023.antflix.net#315.10(C)(3)

Chapter 3 Wiring Methods and Materials

315.12(A)

The minimum size of conductors shall be as shown in Table 315.12(A), except as permitted elsewhere in this Code. Table 315.12(A) Minimum Size of Conductors Conductor Voltage Rating (Volts) Minimum Conductor Size (AWG) Copper, Aluminum, or Copper-Clad Aluminum 2001-5000 8 5001—8000 6 8001—15,000 2 15,001—28,000 1 28,001—35,000 1/0 [315.12(A)](https://2023.antflix.net#315.12(A))

https://2023.antflix.net#315.12(A)

Chapter 3 Wiring Methods and Materials

315.12(B)

Conductors shall be of aluminum, copper-clad aluminum, or copper unless otherwise specified. [315.12(B)](https://2023.antflix.net#315.12(B))

https://2023.antflix.net#315.12(B)

Chapter 3 Wiring Methods and Materials

315.12(C)

Where installed in raceways, conductors not specifically permitted or required elsewhere in this Code to be solid shall be stranded. [315.12(C)](https://2023.antflix.net#315.12(C))

https://2023.antflix.net#315.12(C)

Chapter 3 Wiring Methods and Materials

315.14

Conductors that are intended for use as ungrounded conductors, whether used as a single conductor or in multiconductor cables, shall be finished to be clearly distinguishable from grounded and grounding conductors. Distinguishing markings shall not conflict in any manner with the surface markings required by 315.16(B)(1). Branch-circuit ungrounded conductors shall be identified in accordance with 210.5(C). Feeders shall be identified in accordance with 215.12. [315.14](https://2023.antflix.net#315.14)

https://2023.antflix.net#315.14

Chapter 3 Wiring Methods and Materials

315.16(A)

All conductors and cables shall be marked to indicate the following information, using the applicable method described in 315.16(B): The maximum rated voltageThe proper type letter or letters for the type of wire or cable as specified elsewhere in this CodeThe manufacturer's name, trademark, or other distinctive marking by which the organization responsible for the product can be readily identifiedThe AWG size or circular mil areaInformational Note: See Chapter 9, Table 8, Conductor Properties, for conductor area expressed in SI units for conductor sizes specified in AWG or circular mil area. [315.16(A)](https://2023.antflix.net#315.16(A))

https://2023.antflix.net#315.16(A)

Chapter 3 Wiring Methods and Materials

315.16(B)

One or more of the methods in 315.16(B)(1) through (B)(4) shall be used for marking of cable. [315.16(B)](https://2023.antflix.net#315.16(B))

https://2023.antflix.net#315.16(B)

Chapter 3 Wiring Methods and Materials

315.16(B)(1)

Cables shall be durably marked on the surface. The AWG size or circular mil area shall be repeated at intervals not exceeding 610 mm (24 in.). All other markings shall be repeated at intervals not exceeding 1.0 m (40 in.). [315.16(B)(1)](https://2023.antflix.net#315.16(B)(1))

https://2023.antflix.net#315.16(B)(1)

Chapter 3 Wiring Methods and Materials

315.16(B)(2)

Metal-covered multiconductor cables shall employ a marker tape located within the cable and along its complete length. [315.16(B)(2)](https://2023.antflix.net#315.16(B)(2))

https://2023.antflix.net#315.16(B)(2)

Chapter 3 Wiring Methods and Materials

315.16(B)(3)

Metal-covered, single-conductor cables shall be marked by means of a printed tag attached to the reel. [315.16(B)(3)](https://2023.antflix.net#315.16(B)(3))

https://2023.antflix.net#315.16(B)(3)

Chapter 3 Wiring Methods and Materials

315.16(B)(4)

The information required in 315.16(A)(4) shall be permitted to be marked on the surface of the individual insulated conductors for multiconductor Type MC cable. [315.16(B)(4)](https://2023.antflix.net#315.16(B)(4))

https://2023.antflix.net#315.16(B)(4)

Chapter 3 Wiring Methods and Materials

315.16(C)

Cables shall be permitted to be marked to indicate special characteristics of the cable materials, such as limited smoke and sunlight resistance. [315.16(C)](https://2023.antflix.net#315.16(C))

https://2023.antflix.net#315.16(C)

Chapter 3 Wiring Methods and Materials

315.17(A)

All Type MV cable joints, cable terminations, and connectors shall be marked to indicate the following information, using one or more of the methods described in 315.17(B)(l) or (B)(2), and shall be permitted to be optionally marked as described in 315.17(C): The maximum rated voltage.The proper type letter or letters for the type of wire or cable as specified elsewhere in this Code that the cable joint or cable terminations is listed for use with.The manufacturer's name, trademark, or other distinctive marking by which the organizations responsible for the product can be readily identified.The conductor AWG size or circular mil area size, or range of sizes, that the cable joint or cable terminations is listed for use with.The cable outer diameter size, or size range, that the cable joint or cable termination is listed for use with.Connectors shall be marked with the following information; the marking shall also be on the unit container (the smallest container in which the connector is packaged):The manufacturer's name, trademark, or other distinctive marking by which the organization responsible for the product can be readily identifiedThe manufacturer's catalog numberThe conductor AWG size or circular mil use range, and die number if applicableThe type of conductor material(s) the connector is for use with [315.17(A)](https://2023.antflix.net#315.17(A))

https://2023.antflix.net#315.17(A)

Chapter 3 Wiring Methods and Materials

315.17(B)

One or both of the methods in 315.17(B)(1) or (B)(2) shall be used for the marking of cable joints, terminations, or connectors. [315.17(B)](https://2023.antflix.net#315.17(B))

https://2023.antflix.net#315.17(B)