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Chapter 2 Wiring and Protection | 250.94 | Communications system bonding conductor terminations shall be connected in accordance with 250.94(A) or (B). [250.94](https://2023.antflix.net#250.94) | https://2023.antflix.net#250.94 |
Chapter 2 Wiring and Protection | 250.94(A) | An intersystem bonding termination (IBT) for connecting intersystem bonding conductors shall be provided external to enclosures at the service equipment or metering equipment enclosure and at the disconnecting means for any buildings or structures that are supplied by a feeder or branch circuit. If an IBT is used, it s... | https://2023.antflix.net#250.94(A) |
Chapter 2 Wiring and Protection | 250.94(B) | Connections to an aluminum or copper busbar not less than 6 mm thick × 50 mm wide (1/4 in. thick × 2 in. wide) and of a length to accommodate at least three terminations for communication systems in addition to other connections. The busbar shall be securely fastened and shall be installed in an accessible location. Co... | https://2023.antflix.net#250.94(B) |
Chapter 2 Wiring and Protection | 250.96(A) | Metal raceways, cable trays, cable armor, cable sheath, enclosures, frames, fittings, and other metal noncurrent-carrying parts that are to serve as equipment grounding conductors, with or without the use of wire-type supplementary equipment grounding conductors, shall be bonded if necessary to ensure electrical contin... | https://2023.antflix.net#250.96(A) |
Chapter 2 Wiring and Protection | 250.96(B) | If installed for the reduction of electromagnetic interference on the grounding circuit, an equipment enclosure supplied by a branch circuit shall be permitted to be isolated from a raceway containing circuits supplying only that equipment by one or more listed nonmetallic raceway fittings located at the point of attac... | https://2023.antflix.net#250.96(B) |
Chapter 2 Wiring and Protection | 250.97 | For circuits of over 250 volts to ground, the electrical continuity of metal raceways and cables with metal sheaths that contain any conductor other than service conductors shall be ensured by one or more of the methods specified for services in 250.92(B), except for (B)(1). Exception: If oversized, concentric, or ecce... | https://2023.antflix.net#250.97 |
Chapter 2 Wiring and Protection | 250.98 | Expansion, expansion-deflection, or deflection fittings and telescoping sections of metal raceways shall be made electrically continuous by equipment bonding jumpers or other means. [250.98](https://2023.antflix.net#250.98) | https://2023.antflix.net#250.98 |
Chapter 2 Wiring and Protection | 250.100 | Regardless of the voltage of the electrical system, the electrical continuity of normally non-current-carrying metal parts of electrical equipment, raceways, metal-clad cable, and metal enclosures containing electrical equipment in any hazardous (classified) location, as defined in 500.5, 505.5, and 506.5, shall be ens... | https://2023.antflix.net#250.100 |
Chapter 2 Wiring and Protection | 250.102(A) | Bonding jumpers shall be of copper, aluminum, copper-clad aluminum, or other corrosion-resistant material. A bonding jumper shall be a wire, bus, screw, or similar suitable conductor. [250.102(A)](https://2023.antflix.net#250.102(A)) | https://2023.antflix.net#250.102(A) |
Chapter 2 Wiring and Protection | 250.102(B) | Bonding jumpers shall be attached in the manner specified in 250.8 for circuits and equipment and in 250.70 for grounding electrodes. [250.102(B)](https://2023.antflix.net#250.102(B)) | https://2023.antflix.net#250.102(B) |
Chapter 2 Wiring and Protection | 250.102(C)(1) | The supply-side bonding jumper shall not be smaller than specified in Table 250.102(C)(1).Table 250.102(C)(1) Grounded Conductor, Main Bonding Jumper, System Bonding Jumper, and Supply-Side Bonding Jumper for Alternating-Current Systems Size of Largest Ungrounded Conductor or Equivalent Area for Parallel Conductors ... | https://2023.antflix.net#250.102(C)(1) |
Chapter 2 Wiring and Protection | 250.102(C)(2) | If the ungrounded supply conductors are connected in parallel in two or more raceways or cables, the supply-side bonding jumper shall be sized in accordance with either of the following: An individual bonding jumper for each raceway or cable shall be selected from Table 250.102(C)(1) based on the size of the largest un... | https://2023.antflix.net#250.102(C)(2) |
Chapter 2 Wiring and Protection | 250.102(D) | The equipment bonding jumper on the load side of an overcurrent device(s) shall be sized in accordance with 250.122. A single common continuous equipment bonding jumper shall be permitted to connect two or more raceways or cables if the bonding jumper is sized in accordance with 250.122 for the largest overcurrent devi... | https://2023.antflix.net#250.102(D) |
Chapter 2 Wiring and Protection | 250.102(E) | Bonding jumpers or conductors and equipment bonding jumpers shall be permitted to be installed inside or outside of a raceway or an enclosure. [250.102(E)](https://2023.antflix.net#250.102(E)) | https://2023.antflix.net#250.102(E) |
Chapter 2 Wiring and Protection | 250.102(E)(1) | If installed inside a raceway, equipment bonding jumpers and bonding jumpers or conductors shall comply with the requirements of 250.119 and 250.148. [250.102(E)(1)](https://2023.antflix.net#250.102(E)(1)) | https://2023.antflix.net#250.102(E)(1) |
Chapter 2 Wiring and Protection | 250.102(E)(2) | If installed on the outside, the length of the bonding jumper or conductor or equipment bonding jumper shall not exceed 1.8 m (6 ft) and shall be routed with the raceway or enclosure. Exception: An equipment bonding jumper or supply-side bonding jumper longer than 1.8 m (6 ft) shall be permitted at outside pole locatio... | https://2023.antflix.net#250.102(E)(2) |
Chapter 2 Wiring and Protection | 250.102(E)(3) | Bonding jumpers or conductors and equipment bonding jumpers shall be installed in accordance with 250.64(A) and (B). [250.102(E)(3)](https://2023.antflix.net#250.102(E)(3)) | https://2023.antflix.net#250.102(E)(3) |
Chapter 2 Wiring and Protection | 250.104(A) | The metal water piping system shall be bonded as required in 250.104(A)(1), (A)(2), or (A)(3). [250.104(A)](https://2023.antflix.net#250.104(A)) | https://2023.antflix.net#250.104(A) |
Chapter 2 Wiring and Protection | 250.104(A)(1) | Metal water piping system(s) installed in or attached to a building or structure shall be bonded to any of the following: Service equipment enclosureGrounded conductor at the serviceGrounding electrode conductor, if of sufficient sizeOne or more grounding electrodes used, if the grounding electrode conductor or bonding... | https://2023.antflix.net#250.104(A)(1) |
Chapter 2 Wiring and Protection | 250.104(A)(2) | In buildings of multiple occupancy where the metal water piping system(s) installed in or attached to a building or structure for the individual occupancies is metallically isolated from all other occupancies by use of nonmetallic water piping, the metal water piping system(s) for each occupancy shall be permitted to b... | https://2023.antflix.net#250.104(A)(2) |
Chapter 2 Wiring and Protection | 250.104(A)(3) | The metal water piping system(s) installed in or attached to a building or structure shall be bonded to any of the following: Building or structure disconnecting means enclosure where located at the building or structureEquipment grounding conductor run with the supply conductorsOne or more grounding electrodes usedThe... | https://2023.antflix.net#250.104(A)(3) |
Chapter 2 Wiring and Protection | 250.104(B) | If installed in or attached to a building or structure, a metal piping system(s), including gas piping, that is likely to become energized shall be bonded to any of the following: Equipment grounding conductor for the circuit that is likely to energize the piping systemService equipment enclosureGrounded conductor at t... | https://2023.antflix.net#250.104(B) |
Chapter 2 Wiring and Protection | 250.104(C) | Exposed structural metal that is interconnected to form a metal building frame, is not intentionally grounded or bonded, and is likely to become energized shall be bonded to any of the following: Service equipment enclosureGrounded conductor at the serviceDisconnecting means for buildings or structures supplied by a fe... | https://2023.antflix.net#250.104(C) |
Chapter 2 Wiring and Protection | 250.104(D) | Metal water piping systems and structural metal that is interconnected to form a building frame shall be bonded to separately derived systems in accordance with 250.104(D)(1) through (D)(3). [250.104(D)](https://2023.antflix.net#250.104(D)) | https://2023.antflix.net#250.104(D) |
Chapter 2 Wiring and Protection | 250.104(D)(1) | The grounded conductor of each separately derived system shall be bonded to the nearest accessible point of the metal water piping system(s) in the area served by each separately derived system. This connection shall be made at the same point on the separately derived system where the grounding electrode conductor is c... | https://2023.antflix.net#250.104(D)(1) |
Chapter 2 Wiring and Protection | 250.104(D)(2) | If exposed structural metal that is interconnected to form the building frame exists in the area served by the separately derived system, it shall be bonded to the grounded conductor of each separately derived system. This connection shall be made at the same point on the separately derived system where the grounding e... | https://2023.antflix.net#250.104(D)(2) |
Chapter 2 Wiring and Protection | 250.104(D)(3) | If a common grounding electrode conductor is installed for multiple separately derived systems as permitted by 250.30(A)(6), and exposed structural metal that is interconnected to form the building frame or interior metal water piping exists in the area served by the separately derived system, the metal water piping an... | https://2023.antflix.net#250.104(D)(3) |
Chapter 2 Wiring and Protection | 250.106 | The lightning protection system ground terminals shall be bonded to the building or structure grounding electrode system. Informational Note No. 1: See 250.60 for use of strike termination devices. Informational Note No. 2: See NFPA 780, Standard for the Installation of Lightning Protection Systems, which contains deta... | https://2023.antflix.net#250.106 |
Chapter 2 Wiring and Protection | 250.109 | Metal enclosures shall be permitted to be used to connect bonding jumpers or equipment grounding conductors, or both, together to become a part of an effective ground-fault current path. If installed, metal covers, plaster rings, extension rings, and metal fittings shall be attached to these metal enclosures to ensure ... | https://2023.antflix.net#250.109 |
Chapter 2 Wiring and Protection | 250.110 | Exposed, normally non-current-carrying metal parts of fixed equipment supplied by or enclosing conductors or components that are likely to become energized shall be connected to an equipment grounding conductor under any of the following conditions: If within 2.5 m (8 ft) vertically or 1.5 m (5 ft) horizontally of grou... | https://2023.antflix.net#250.110 |
Chapter 2 Wiring and Protection | 250.112 | Except as permitted in 250.112(F) and (I), exposed, normally non-current-carrying metal parts of equipment described in 250.112(A) through (K), and normally non-current-carrying metal parts of equipment and enclosures described in 250.112(L) and (M), shall be connected to an equipment grounding conductor, regardless of... | https://2023.antflix.net#250.112 |
Chapter 2 Wiring and Protection | 250.112(A) | Switchgear or switchboard frames and structures supporting switching equipment, except frames of 2-wire dc switchgear or switchboards if effectively insulated from ground. [250.112(A)](https://2023.antflix.net#250.112(A)) | https://2023.antflix.net#250.112(A) |
Chapter 2 Wiring and Protection | 250.112(B) | Generator and motor frames in an electrically operated pipe organ, unless effectively insulated from ground and the motor driving it. [250.112(B)](https://2023.antflix.net#250.112(B)) | https://2023.antflix.net#250.112(B) |
Chapter 2 Wiring and Protection | 250.112(C) | Motor frames, as provided by 430.242. [250.112(C)](https://2023.antflix.net#250.112(C)) | https://2023.antflix.net#250.112(C) |
Chapter 2 Wiring and Protection | 250.112(D) | Enclosures for motor controllers unless attached to ungrounded portable equipment. [250.112(D)](https://2023.antflix.net#250.112(D)) | https://2023.antflix.net#250.112(D) |
Chapter 2 Wiring and Protection | 250.112(E) | Electrical equipment for elevators and cranes. [250.112(E)](https://2023.antflix.net#250.112(E)) | https://2023.antflix.net#250.112(E) |
Chapter 2 Wiring and Protection | 250.112(F) | Electrical equipment in commercial garages, theaters, and motion picture studios, except pendant lampholders supplied by circuits not over 150 volts to ground. [250.112(F)](https://2023.antflix.net#250.112(F)) | https://2023.antflix.net#250.112(F) |
Chapter 2 Wiring and Protection | 250.112(G) | Electric signs, outline lighting, and associated equipment as provided in 600.7. [250.112(G)](https://2023.antflix.net#250.112(G)) | https://2023.antflix.net#250.112(G) |
Chapter 2 Wiring and Protection | 250.112(H) | Motion picture projection equipment. [250.112(H)](https://2023.antflix.net#250.112(H)) | https://2023.antflix.net#250.112(H) |
Chapter 2 Wiring and Protection | 250.112(I) | Equipment supplied by Class 1 circuits shall be grounded unless operating at less than 50 volts. Equipment supplied by Class 1 power-limited circuits, by Class 2 and Class 3 remote-control and signaling circuits, and by fire alarm circuits shall be grounded if system grounding is required by Part II or Part VIII of thi... | https://2023.antflix.net#250.112(I) |
Chapter 2 Wiring and Protection | 250.112(J) | Luminaires as provided in Part V of Article 410. [250.112(J)](https://2023.antflix.net#250.112(J)) | https://2023.antflix.net#250.112(J) |
Chapter 2 Wiring and Protection | 250.112(K) | Permanently mounted electrical equipment and skids shall be connected to the equipment grounding conductor. Wire-type equipment grounding conductors shall be sized as required by 250.122. [250.112(K)](https://2023.antflix.net#250.112(K)) | https://2023.antflix.net#250.112(K) |
Chapter 2 Wiring and Protection | 250.112(L) | Motor-operated water pumps, including the submersible type. [250.112(L)](https://2023.antflix.net#250.112(L)) | https://2023.antflix.net#250.112(L) |
Chapter 2 Wiring and Protection | 250.112(M) | If a submersible pump is used in a metal well casing, the well casing shall be connected to the pump circuit equipment grounding conductor. [250.112(M)](https://2023.antflix.net#250.112(M)) | https://2023.antflix.net#250.112(M) |
Chapter 2 Wiring and Protection | 250.114 | Exposed, normally non-current-carrying metal parts of cord-and-plug-connected equipment shall be connected to the equipment grounding conductor under any of the following conditions: Exception: Listed tools, listed appliances, and listed equipment covered in 250.114, list items 2 through 4, shall not be required to be ... | https://2023.antflix.net#250.114 |
Chapter 2 Wiring and Protection | 250.116 | The metal parts of the following nonelectrical equipment described in this section shall be connected to the equipment grounding conductor: Frames and tracks of electrically operated cranes and hoistsFrames of nonelectrically driven elevator cars to which electrical conductors are attachedHand-operated metal shifting r... | https://2023.antflix.net#250.116 |
Chapter 2 Wiring and Protection | 250.118(A) | Each equipment grounding conductor run with or enclosing the circuit conductors shall be one or more or a combination of the following: A copper, aluminum, or copper-clad aluminum conductor. This conductor shall be solid or stranded; insulated, covered, or bare; and in the form of a wire or a busbar of any shape.Rigid ... | https://2023.antflix.net#250.118(A) |
Chapter 2 Wiring and Protection | 250.118(B) | The following shall not be used as equipment grounding conductors. Grounding electrode conductorsException: A wire-type equipment grounding conductor installed in compliance with 250.6(A) and the applicable requirements for both the equipment grounding conductor and the grounding electrode conductor in Parts II. III, a... | https://2023.antflix.net#250.118(B) |
Chapter 2 Wiring and Protection | 250.119(A) | Unless required elsewhere in this Code, equipment grounding conductors shall be permitted to be bare, covered, or insulated. Individually covered or insulated equipment grounding conductors of the wire type shall have a continuous outer finish that is either green or green with one or more yellow stripes except as perm... | https://2023.antflix.net#250.119(A) |
Chapter 2 Wiring and Protection | 250.119(B) | Equipment grounding conductors 4 AWG and larger shall comply with the following: At the time of installation, if the insulation does not comply with 250.119(A), it shall be permanently identified as an equipment grounding conductor at each end and at every point where the conductor is accessible.Exception: Conductors 4... | https://2023.antflix.net#250.119(B) |
Chapter 2 Wiring and Protection | 250.119(C) | One or more insulated conductors in a multiconductor cable, at the time of installation, shall be permitted to be permanently identified as equipment grounding conductors at each end and at every point where the conductors are accessible by one of the following means: Stripping the insulation from the entire exposed le... | https://2023.antflix.net#250.119(C) |
Chapter 2 Wiring and Protection | 250.119(D) | Equipment grounding conductors in flexible cords shall be insulated and shall have a continuous outer finish that is either green or green with one or more yellow stripes. [250.119(D)](https://2023.antflix.net#250.119(D)) | https://2023.antflix.net#250.119(D) |
Chapter 2 Wiring and Protection | 250.120 | An equipment grounding conductor shall be installed in accordance with 250.120(A), (B), and (C). [250.120](https://2023.antflix.net#250.120) | https://2023.antflix.net#250.120 |
Chapter 2 Wiring and Protection | 250.120(A) | If it consists of a raceway, cable tray, cable armor, cablebus framework, or cable sheath or if it is a wire within a raceway or cable, it shall be installed in accordance with the applicable provisions in this Code using fittings for joints and terminations approved for use with the type of raceway or cable used. All ... | https://2023.antflix.net#250.120(A) |
Chapter 2 Wiring and Protection | 250.120(B) | Equipment grounding conductors of bare, covered, or insulated aluminum or copper-clad aluminum shall comply with the following: Unless part of an applicable cable wiring method, bare or covered conductors shall not be installed if subject to corrosive conditions or be installed in direct contact with concrete, masonry,... | https://2023.antflix.net#250.120(B) |
Chapter 2 Wiring and Protection | 250.120(C) | If not routed with circuit conductors as permitted in 250.130(C) and 250.134, Exception No. 2, equipment grounding conductors smaller than 6 AWG shall be protected from physical damage by an identified raceway or cable armor unless installed within hollow spaces of the framing members of buildings or structures and if ... | https://2023.antflix.net#250.120(C) |
Chapter 2 Wiring and Protection | 250.122 | Table 250.122 Minimum Size Equipment Grounding Conductors for Grounding Raceway and Equipment Rating or Setting of Automatic Overcurrent Device in Circuit Ahead of Equipment, Conduit, etc., Not Exceeding (Amperes) Size (AWG or kcmil) Copper Aluminum or Copper-Clad Aluminum* 15 14 12 20 12 10 60 10 8 100 ... | https://2023.antflix.net#250.122 |
Chapter 2 Wiring and Protection | 250.122(A) | Copper, aluminum, or copper-clad aluminum equipment grounding conductors of the wire type shall not be smaller than shown in Table 250.122. The equipment grounding conductor shall not be required to be larger than the circuit conductors supplying the equipment. If a cable tray, a raceway, or a cable armor or sheath is ... | https://2023.antflix.net#250.122(A) |
Chapter 2 Wiring and Protection | 250.122(B) | If ungrounded conductors are increased in size for any reason other than as required in 310.15(B) or 310.15(C), wire-type equipment grounding conductors, if installed, shall be increased in size proportionately to the increase in circular mil area of the ungrounded conductors. Exception: Equipment grounding conductors ... | https://2023.antflix.net#250.122(B) |
Chapter 2 Wiring and Protection | 250.122(C) | A single equipment grounding conductor shall be permitted to be installed for multiple circuits that are installed in the same raceway, cable, trench, or cable tray. It shall be sized from Table 250.122 for the largest overcurrent device protecting circuit conductors in the raceway, cable, trench, or cable tray. Equipm... | https://2023.antflix.net#250.122(C) |
Chapter 2 Wiring and Protection | 250.122(D) | Equipment grounding conductors for motor circuits shall be sized in accordance with 250.122(D)(1) or (D)(2). [250.122(D)](https://2023.antflix.net#250.122(D)) | https://2023.antflix.net#250.122(D) |
Chapter 2 Wiring and Protection | 250.122(D)(1) | The equipment grounding conductor size shall not be smaller than determined by 250.122(A) based on the rating of the branch-circuit short-circuit and ground-fault protective device. [250.122(D)(1)](https://2023.antflix.net#250.122(D)(1)) | https://2023.antflix.net#250.122(D)(1) |
Chapter 2 Wiring and Protection | 250.122(D)(2) | If the overcurrent device is an instantaneous-trip circuit breaker or a motor short-circuit protector, the equipment grounding conductor shall be sized not smaller than that given by 250.122(A) using the maximum permitted rating of a dual element time-delay fuse selected for branch-circuit short-circuit and ground-faul... | https://2023.antflix.net#250.122(D)(2) |
Chapter 2 Wiring and Protection | 250.122(E) | The equipment grounding conductor in a flexible cord with the largest circuit conductor 10 AWG or smaller, and the equipment grounding conductor used with fixture wires of any size in accordance with 240.5, shall not be smaller than 18 AWG copper and shall not be smaller than the circuit conductors. The equipment groun... | https://2023.antflix.net#250.122(E) |
Chapter 2 Wiring and Protection | 250.122(F) | For circuits of parallel conductors as permitted in 310.10(G), the equipment grounding conductor shall be installed in accordance with 250.122(F)(1) or (F)(2). [250.122(F)](https://2023.antflix.net#250.122(F)) | https://2023.antflix.net#250.122(F) |
Chapter 2 Wiring and Protection | 250.122(F)(1) | Single Raceway or Cable Tray, Auxiliary Gutter, or Cable Tray. If circuit conductors are connected in parallel in the same raceway, auxiliary gutter, or cable tray, a single wire-type conductor shall be permitted as the equipment grounding conductor. The wire-type equipment grounding conductor shall be sized in accorda... | https://2023.antflix.net#250.122(F)(1) |
Chapter 2 Wiring and Protection | 250.122(F)(2) | Except as provided in 250.122(F)(2)(c) for raceway or cable tray installations, the equipment grounding conductor in each multiconductor cable shall be sized in accordance with 250.122 based on the overcurrent protective device for the feeder or branch circuit.If circuit conductors of multiconductor cables are connecte... | https://2023.antflix.net#250.122(F)(2) |
Chapter 2 Wiring and Protection | 250.122(G) | Equipment grounding conductors installed with feeder taps shall not be smaller than shown in Table 250.122 based on the rating of the overcurrent device ahead of the feeder on the supply side ahead of the tap but shall not be required to be larger than the tap conductors. [250.122(G)](https://2023.antflix.net#250.122(G... | https://2023.antflix.net#250.122(G) |
Chapter 2 Wiring and Protection | 250.124(A) | Separable connections such as those provided in drawout equipment or attachment plugs and mating connectors and receptacles shall provide for first-make, last-break of the equipment grounding conductor. First-make, last-break shall not be required if interlocked equipment, plugs, receptacles, and connectors preclude en... | https://2023.antflix.net#250.124(A) |
Chapter 2 Wiring and Protection | 250.124(B) | No automatic cutout or switch shall be placed in the equipment grounding conductor of a premises wiring system unless the opening of the cutout or switch disconnects all sources of energy. [250.124(B)](https://2023.antflix.net#250.124(B)) | https://2023.antflix.net#250.124(B) |
Chapter 2 Wiring and Protection | 250.126 | The terminal for the connection of the equipment grounding conductor shall be identified by one of the following: A green, not readily removable terminal screw with a hexagonal head.A green, hexagonal, not readily removable terminal nut.A green pressure wire connector. If the terminal for the equipment grounding conduc... | https://2023.antflix.net#250.126 |
Chapter 2 Wiring and Protection | 250.130 | Equipment grounding conductor connections at the source of separately derived systems shall be made in accordance with 250.30(A)(1). Equipment grounding conductor connections at service equipment shall be made as indicated in 250.130(A) or (B). For replacement of non-grounding-type receptacles with grounding-type recep... | https://2023.antflix.net#250.130 |
Chapter 2 Wiring and Protection | 250.130(A) | The connection shall be made by bonding the equipment grounding conductor to the grounded service conductor and the grounding electrode conductor. [250.130(A)](https://2023.antflix.net#250.130(A)) | https://2023.antflix.net#250.130(A) |
Chapter 2 Wiring and Protection | 250.130(B) | The connection shall be made by bonding the equipment grounding conductor to the grounding electrode conductor. [250.130(B)](https://2023.antflix.net#250.130(B)) | https://2023.antflix.net#250.130(B) |
Chapter 2 Wiring and Protection | 250.130(C) | The equipment grounding conductor that is connected to a grounding-type receptacle, a snap switch with an equipment grounding terminal, or a branch-circuit extension shall be permitted to be connected to any of the following: Any accessible point on the grounding electrode system as described in 250.50Any accessible po... | https://2023.antflix.net#250.130(C) |
Chapter 2 Wiring and Protection | 250.132 | Isolated sections of metal raceway or cable armor, if required to be connected to an equipment grounding conductor, shall be connected in accordance with 250.134. [250.132](https://2023.antflix.net#250.132) | https://2023.antflix.net#250.132 |
Chapter 2 Wiring and Protection | 250.134 | Unless connected to the grounded circuit conductor as permitted by 250.32, 250.140, and 250.142, non-current-carrying metal parts of equipment, raceways, and other enclosures, if grounded, shall be connected to an equipment grounding conductor by one of the following methods: By connecting to any of the equipment groun... | https://2023.antflix.net#250.134 |
Chapter 2 Wiring and Protection | 250.136 | If a metal rack or structure is connected to an equipment grounding conductor in accordance with 250.134, it shall be permitted to serve as the equipment grounding conductor for electrical equipment secured to and in electrical contact with the metal rack or structure. [250.136](https://2023.antflix.net#250.136) | https://2023.antflix.net#250.136 |
Chapter 2 Wiring and Protection | 250.138 | Non-current-carrying metal parts of cord-and-plug-connected equipment, if required to be connected to an equipment grounding conductor, shall be connected by one of the methods in 250.138(A) or (B). [250.138](https://2023.antflix.net#250.138) | https://2023.antflix.net#250.138 |
Chapter 2 Wiring and Protection | 250.138(A) | By means of an equipment grounding conductor run with the power supply conductors in a cable assembly or flexible cord properly terminated in a grounding-type attachment plug with one fixed grounding contact. Exception: The grounding contacting pole of grounding-type plug-in ground-fault circuit interrupters shall be p... | https://2023.antflix.net#250.138(A) |
Chapter 2 Wiring and Protection | 250.138(B) | By means of a separate flexible wire or strap, insulated or bare, connected to an equipment grounding conductor, and protected as well as practicable against physical damage, if part of equipment. [250.138(B)](https://2023.antflix.net#250.138(B)) | https://2023.antflix.net#250.138(B) |
Chapter 2 Wiring and Protection | 250.140 | Frames of electric ranges, wall-mounted ovens, counter-mounted cooking units, clothes dryers, and outlet or junction boxes that are part of the circuit shall be connected to the equipment grounding conductor in accordance with 250.140(A) or the grounded conductor in accordance with 250.140(B). [250.140](https://2023.an... | https://2023.antflix.net#250.140 |
Chapter 2 Wiring and Protection | 250.140(A) | The circuit supplying the appliance shall include an equipment grounding conductor. The frame of the appliance shall be connected to the equipment grounding conductor in the manner specified by 250.134 or 250.138. [250.140(A)](https://2023.antflix.net#250.140(A)) | https://2023.antflix.net#250.140(A) |
Chapter 2 Wiring and Protection | 250.140(B) | For existing branch-circuit installations only, if an equipment grounding conductor is not present in the outlet or junction box the frame of the appliance shall be permitted to be connected to the grounded conductor if all the conditions in the following list items (1), (2), and (3) are met and the grounded conductor ... | https://2023.antflix.net#250.140(B) |
Chapter 2 Wiring and Protection | 250.142(A) | A grounded circuit conductor shall be permitted to be connected to non-current-carrying metal parts of equipment, raceways, and other enclosures at any of the following locations: On the supply side or within the enclosure of the ac service disconnecting meansOn the supply side or within the enclosure of the main disco... | https://2023.antflix.net#250.142(A) |
Chapter 2 Wiring and Protection | 250.142(B) | Except as permitted in 250.30(A)(1), 250.32(B)(1), Exception No. 1, and Part X of Article 250, a grounded circuit conductor shall not be connected to noncurrent-carrying metal parts of equipment on the load side of the service disconnecting means or on the load side of a separately derived system disconnecting means or... | https://2023.antflix.net#250.142(B) |
Chapter 2 Wiring and Protection | 250.144 | If equipment is required to be grounded and is supplied by more than one circuit containing an equipment grounding conductor, a means to terminate each equipment grounding conductor meeting the requirements of 250.8 shall be provided as specified in 250.134 and 250.138. [250.144](https://2023.antflix.net#250.144) | https://2023.antflix.net#250.144 |
Chapter 2 Wiring and Protection | 250.146 | An equipment bonding jumper shall be used to connect the grounding terminal of a grounding-type receptacle to a metal box that is connected to an equipment grounding conductor, except as permitted in 250.146(A) through (D). The equipment bonding jumper shall be sized in accordance with Table 250.122. [250.146](https://... | https://2023.antflix.net#250.146 |
Chapter 2 Wiring and Protection | 250.146(A) | If a metal box is mounted on the surface, the direct metal-to-metal contact between the device yoke or strap to the box shall be permitted to provide the required effective ground-fault current path. At least one of the insulating washers shall be removed from receptacles that do not have a contact yoke or device to en... | https://2023.antflix.net#250.146(A) |
Chapter 2 Wiring and Protection | 250.146(B) | Contact devices or yokes designed and listed as self-grounding shall be permitted in conjunction with the supporting screws to establish equipment bonding between the device yoke and flush-type boxes. [250.146(B)](https://2023.antflix.net#250.146(B)) | https://2023.antflix.net#250.146(B) |
Chapter 2 Wiring and Protection | 250.146(C) | Floor boxes designed for and listed as providing continuity between the box and the device shall be permitted. [250.146(C)](https://2023.antflix.net#250.146(C)) | https://2023.antflix.net#250.146(C) |
Chapter 2 Wiring and Protection | 250.146(D) | If installed for the reduction of electromagnetic interference on the equipment grounding conductor, a receptacle in which the grounding terminal is purposely insulated from the receptacle mounting means shall be permitted. The receptacle grounding terminal shall be connected to an insulated equipment grounding conduct... | https://2023.antflix.net#250.146(D) |
Chapter 2 Wiring and Protection | 250.148 | If circuit conductors are spliced within a box or terminated on equipment within or supported by a box, the installation shall comply with 250.148(A) through (D). Exception: The equipment grounding conductor permitted in 250.146(D) shall not be required to be connected to the other equipment grounding conductors or to ... | https://2023.antflix.net#250.148 |
Chapter 2 Wiring and Protection | 250.148(A) | All equipment grounding conductors that are spliced or terminated within the box shall be connected together. Connections and splices shall be made in accordance with 110.14(B) and 250.8 except that insulation shall not be required. [250.148(A)](https://2023.antflix.net#250.148(A)) | https://2023.antflix.net#250.148(A) |
Chapter 2 Wiring and Protection | 250.148(B) | The arrangement of grounding connections shall be such that the disconnection or the removal of a luminaire, receptacle, or other device fed from the box does not interrupt the electrical continuity of the equipment grounding conductor(s) providing an effective ground-fault current path. [250.148(B)](https://2023.antfl... | https://2023.antflix.net#250.148(B) |
Chapter 2 Wiring and Protection | 250.148(C) | A connection used for no other purpose shall be made between the metal box and the equipment grounding conductor(s). The equipment bonding jumper or equipment grounding conductor shall be sized from Table 250.122 based on the largest overcurrent device protecting circuit conductors in the box. [250.148(C)](https://2023... | https://2023.antflix.net#250.148(C) |
Chapter 2 Wiring and Protection | 250.148(D) | One or more equipment grounding conductors brought into a nonmetallic outlet box shall be arranged to provide a connection to any fitting or device in that box requiring connection to an equipment grounding conductor. [250.148(D)](https://2023.antflix.net#250.148(D)) | https://2023.antflix.net#250.148(D) |
Chapter 2 Wiring and Protection | 250.160 | Direct-current systems shall comply with Part VIII and other sections of Article 250 not specifically intended for ac systems. [250.160](https://2023.antflix.net#250.160) | https://2023.antflix.net#250.160 |
Chapter 2 Wiring and Protection | 250.162 | Direct-current circuits and systems shall be grounded as provided for in 250.162(A) and (B). [250.162](https://2023.antflix.net#250.162) | https://2023.antflix.net#250.162 |
Chapter 2 Wiring and Protection | 250.162(A) | A 2-wire, dc system supplying premises wiring and operating at greater than 60 volts but not greater than 300 volts shall be grounded. Exception No. 1: A system equipped with a ground detector and supplying only industrial equipment in limited areas shall not be required to be grounded if installed immediately adjacent... | https://2023.antflix.net#250.162(A) |
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