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Chapter 2 Wiring and Protection | 230.72(A) | The two to six disconnects, if permitted in 230.71, shall be grouped. Each disconnect shall be marked to indicate the load served. Exception: One of the two to six service disconnecting means permitted in 230.71, where used only for a water pump also intended to provide fire protection, shall be permitted to be located... | https://2023.antflix.net#230.72(A) |
Chapter 2 Wiring and Protection | 230.72(B) | The one or more additional service disconnecting means for fire pumps, emergency systems, legally required standby, or optional standby services permitted by 230.2 shall be installed remote from the one to six service disconnecting means for normal service to minimize the possibility of simultaneous interruption of sup... | https://2023.antflix.net#230.72(B) |
Chapter 2 Wiring and Protection | 230.72(C) | In a multiple-occupancy building, each occupant shall have access to the occupant's service disconnecting means. Exception: In a multiple-occupancy building where electric service and electrical maintenance are provided by the building management and where these are under continuous building management supervision, the... | https://2023.antflix.net#230.72(C) |
Chapter 2 Wiring and Protection | 230.74 | Each service disconnect shall simultaneously disconnect all ungrounded service conductors that it controls from the premises wiring system. [230.74](https://2023.antflix.net#230.74) | https://2023.antflix.net#230.74 |
Chapter 2 Wiring and Protection | 230.75 | Where the service disconnecting means does not disconnect the grounded conductor from the premises wiring, other means shall be provided for this purpose in the service equipment. A terminal or bus to which all grounded conductors can be attached by means of pressure connectors shall be permitted for this purpose. In a... | https://2023.antflix.net#230.75 |
Chapter 2 Wiring and Protection | 230.76 | The service disconnecting means for ungrounded service conductors shall consist of one of the following: A manually operable switch or circuit breaker equipped with a handle or other suitable operating meansA power-operated switch or circuit breaker, provided the switch or circuit breaker can be opened by hand in the e... | https://2023.antflix.net#230.76 |
Chapter 2 Wiring and Protection | 230.77 | The service disconnecting means shall plainly indicate whether it is in the open (off) or closed (on) position. [230.77](https://2023.antflix.net#230.77) | https://2023.antflix.net#230.77 |
Chapter 2 Wiring and Protection | 230.79 | The service disconnecting means shall have a rating not less than the calculated load to be carried, determined in accordance with Part III, IV, or V of Article 220, as applicable. In no case shall the rating be lower than specified in 230.79(A), (B), (C), or (D). [230.79](https://2023.antflix.net#230.79) | https://2023.antflix.net#230.79 |
Chapter 2 Wiring and Protection | 230.79(A) | For installations to supply only limited loads of a single branch circuit, the service disconnecting means shall have a rating of not less than 15 amperes. [230.79(A)](https://2023.antflix.net#230.79(A)) | https://2023.antflix.net#230.79(A) |
Chapter 2 Wiring and Protection | 230.79(B) | For installations consisting of not more than two 2-wire branch circuits, the service disconnecting means shall have a rating of not less than 30 amperes. [230.79(B)](https://2023.antflix.net#230.79(B)) | https://2023.antflix.net#230.79(B) |
Chapter 2 Wiring and Protection | 230.79(C) | For a one-family dwelling, the service disconnecting means shall have a rating of not less than 100 amperes, 3-wire. [230.79(C)](https://2023.antflix.net#230.79(C)) | https://2023.antflix.net#230.79(C) |
Chapter 2 Wiring and Protection | 230.79(D) | For all other installations, the service disconnecting means shall have a rating of not less than 60 amperes. [230.79(D)](https://2023.antflix.net#230.79(D)) | https://2023.antflix.net#230.79(D) |
Chapter 2 Wiring and Protection | 230.80 | Where the service disconnecting means consists of more than one switch or circuit breaker, as permitted by 230.71, the combined ratings of all the switches or circuit breakers used shall not be less than the rating required by 230.79. [230.80](https://2023.antflix.net#230.80) | https://2023.antflix.net#230.80 |
Chapter 2 Wiring and Protection | 230.81 | The service conductors shall be connected to the service disconnecting means by pressure connectors, clamps, or other approved means. Connections that depend on solder shall not be used. [230.81](https://2023.antflix.net#230.81) | https://2023.antflix.net#230.81 |
Chapter 2 Wiring and Protection | 230.82 | Only the following equipment shall be permitted to be connected to the supply side of the service disconnecting means: Cable limiters.Meters and meter sockets nominally rated not in excess of 1000 volts, if all metal housings and service enclosures are grounded in accordance with Part VII and bonded in accordance with ... | https://2023.antflix.net#230.82 |
Chapter 2 Wiring and Protection | 230.85 | For one- and two-family dwelling units, an emergency disconnecting means shall be installed. [230.85](https://2023.antflix.net#230.85) | https://2023.antflix.net#230.85 |
Chapter 2 Wiring and Protection | 230.85(A)(1) | The disconnecting means shall be installed in a readily accessible outdoor location on or within sight of the dwelling unit. Exception: Where the requirements of 225.41 are met, this section shall not apply. [230.85(A)(1)](https://2023.antflix.net#230.85(A)(1)) | https://2023.antflix.net#230.85(A)(1) |
Chapter 2 Wiring and Protection | 230.85(A)(2) | The disconnecting means shall have a short-circuit current rating equal to or greater than the available fault current. [230.85(A)(2)](https://2023.antflix.net#230.85(A)(2)) | https://2023.antflix.net#230.85(A)(2) |
Chapter 2 Wiring and Protection | 230.85(A)(3) | If more than one disconnecting means is provided, they shall be grouped. [230.85(A)(3)](https://2023.antflix.net#230.85(A)(3)) | https://2023.antflix.net#230.85(A)(3) |
Chapter 2 Wiring and Protection | 230.85(B) | Each disconnect shall be one of the following: Service disconnectA meter disconnect integral to the meter mounting equipment not marked as suitable only for use as service equipment installed in accordance with 230.82Other listed disconnect switch or circuit breaker that is marked suitable for use as service equipment,... | https://2023.antflix.net#230.85(B) |
Chapter 2 Wiring and Protection | 230.85(C) | Where service equipment is replaced, all of the requirements of this section shall apply. Exception: Where only meter sockets, service entrance conductors, or related raceways and fittings are replaced, the requirements of this section shall not apply. [230.85(C)](https://2023.antflix.net#230.85(C)) | https://2023.antflix.net#230.85(C) |
Chapter 2 Wiring and Protection | 230.85(D) | Where equipment for isolation of other energy source systems is not located adjacent to the emergency disconnect required by this section, a plaque or directory identifying the location of all equipment for isolation of other energy sources shall be located adjacent to the disconnecting means required by this section. ... | https://2023.antflix.net#230.85(D) |
Chapter 2 Wiring and Protection | 230.85(E)(1) | The disconnecting means shall marked as follows: Service disconnectEMERGENCY DISCONNECT, SERVICE DISCONNECTMeter disconnects installed in accordance with 230.82(3) and marked as follows:EMERGENCY DISCONNECT, METER DISCONNECT, NOT SERVICE EQUIPMENTOther listed disconnect switches or circuit breakers on the supply side o... | https://2023.antflix.net#230.85(E)(1) |
Chapter 2 Wiring and Protection | 230.85(E)(2) | Markings shall comply with 110.21 (B) and both of the following: The marking or labels shall be located on the outside front of the disconnect enclosure with red background and white text.The letters shall be at least 13 mm (1/2 in.) high. [230.85(E)(2)](https://2023.antflix.net#230.85(E)(2)) | https://2023.antflix.net#230.85(E)(2) |
Chapter 2 Wiring and Protection | 230.90 | Each ungrounded service conductor shall have overload protection. [230.90](https://2023.antflix.net#230.90) | https://2023.antflix.net#230.90 |
Chapter 2 Wiring and Protection | 230.90(A) | Such protection shall be provided by an overcurrent device in series with each ungrounded service conductor that has a rating or setting not higher than the ampacity of the conductor. A set of fuses shall be considered all the fuses required to protect all the ungrounded conductors of a circuit. Single-pole circuit bre... | https://2023.antflix.net#230.90(A) |
Chapter 2 Wiring and Protection | 230.90(B) | No overcurrent device shall be inserted in a grounded service conductor except a circuit breaker that simultaneously opens all conductors of the circuit. [230.90(B)](https://2023.antflix.net#230.90(B)) | https://2023.antflix.net#230.90(B) |
Chapter 2 Wiring and Protection | 230.91 | The service overcurrent device shall be an integral part of the service disconnecting means or shall be located immediately adjacent thereto. Where fuses are used as the service overcurrent device, the disconnecting means shall be located ahead of the supply side of the fuses. [230.91](https://2023.antflix.net#230.91) | https://2023.antflix.net#230.91 |
Chapter 2 Wiring and Protection | 230.92 | Where the service overcurrent devices are locked or sealed or are not readily accessible to the occupant, branch-circuit or feeder overcurrent devices shall be installed on the load side, shall be mounted in a readily accessible location, and shall be of lower ampere rating than the service overcurrent device. [230.92]... | https://2023.antflix.net#230.92 |
Chapter 2 Wiring and Protection | 230.93 | Where necessary to prevent tampering, an automatic overcurrent device that protects service conductors supplying only a specific load, such as a water heater, shall be permitted to be locked or sealed where located so as to be accessible. [230.93](https://2023.antflix.net#230.93) | https://2023.antflix.net#230.93 |
Chapter 2 Wiring and Protection | 230.94 | The overcurrent device shall protect all circuits and devices. Exception No. 1: The service switch shall be permitted on the supply side. Exception No. 2: High-impedance shunt circuits, surge arresters, Type 1 surge-protective devices, surge-protective capacitors, and instrument transformers (current and voltage) shall... | https://2023.antflix.net#230.94 |
Chapter 2 Wiring and Protection | 230.95 | Ground-fault protection of equipment shall be provided for solidly grounded wye electric services of more than 150 volts to ground but not exceeding 1000 volts phase-to-phase for each service disconnect rated 1000 amperes or more. The grounded conductor for the solidly grounded wye system shall be connected directly to... | https://2023.antflix.net#230.95 |
Chapter 2 Wiring and Protection | 230.95(A) | The ground-fault protection system shall operate to cause the service disconnect to open all ungrounded conductors of the faulted circuit. The maximum setting of the ground-fault protection shall be 1200 amperes, and the maximum time delay shall be one second for ground-fault currents equal to or greater than 3000 ampe... | https://2023.antflix.net#230.95(A) |
Chapter 2 Wiring and Protection | 230.95(B) | If a switch and fuse combination is used, the fuses employed shall be capable of interrupting any current higher than the interrupting capacity of the switch during a time that the ground-fault protective system will not cause the switch to open. [230.95(B)](https://2023.antflix.net#230.95(B)) | https://2023.antflix.net#230.95(B) |
Chapter 2 Wiring and Protection | 230.95(C) | The ground-fault protection system shall be performance tested when first installed on site. This testing shall be conducted by a qualified person(s) using a test process of primary current injection, in accordance with instructions that shall be provided with the equipment. A written record of this testing shall be ma... | https://2023.antflix.net#230.95(C) |
Chapter 2 Wiring and Protection | 235.1 | This article provides the general requirements for branch circuits, feeders, and services over 1000 volts ac or 1500 volts dc, nominal. Informational Note: See ANSI/IEEE C2-2017, National Electrical Safety Code, for additional information on wiring over 1000 volts, nominal. [235.1](https://2023.antflix.net#235.1) | https://2023.antflix.net#235.1 |
Chapter 2 Wiring and Protection | 235.3 | Table 235.3 lists references for specific equipment and applications not located in Chapters 5, 6, and 7 that amend or supplement the requirements of this article. Table 235.3 References for Specific Equipment and Applications Not Located in Chapters 5, 6, and 7 Equipment Article Section Air-conditioning and ref... | https://2023.antflix.net#235.3 |
Chapter 2 Wiring and Protection | 235.5(A) | The grounded conductor of a branch circuit shall be identified in accordance with 200.6. [235.5(A)](https://2023.antflix.net#235.5(A)) | https://2023.antflix.net#235.5(A) |
Chapter 2 Wiring and Protection | 235.5(B) | The equipment grounding conductor shall be identified in accordance with 250.119. [235.5(B)](https://2023.antflix.net#235.5(B)) | https://2023.antflix.net#235.5(B) |
Chapter 2 Wiring and Protection | 235.5(C) | Ungrounded conductors shall be identified in accordance with 235.5(C)(1) or (C)(2), as applicable. [235.5(C)](https://2023.antflix.net#235.5(C)) | https://2023.antflix.net#235.5(C) |
Chapter 2 Wiring and Protection | 235.5(C)(1) | Where the premises wiring system has branch circuits supplied from more than one nominal voltage system, each ungrounded conductor of a branch circuit shall be identified by phase or line and by nominal system voltage at all termination, connection, and splice points in accordance with 235.5(C)(1)(a) and (C)(1)(b). Dif... | https://2023.antflix.net#235.5(C)(1) |
Chapter 2 Wiring and Protection | 235.5(C)(2) | Where a branch circuit is supplied from a dc system operating at more than 1500 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 and each ungrounded conductor of 6 AWG or smaller shall ... | https://2023.antflix.net#235.5(C)(2) |
Chapter 2 Wiring and Protection | 235.6 | Circuits exceeding 1000 volts ac or 1500 volts dc, nominal, between conductors shall be permitted to supply utilization equipment in installations where conditions of maintenance and supervision ensure that only qualified persons service the installation. [235.6](https://2023.antflix.net#235.6) | https://2023.antflix.net#235.6 |
Chapter 2 Wiring and Protection | 235.9 | Branch circuits shall not be derived from autotransformers unless the circuit supplied has a grounded conductor that is electrically connected to a grounded conductor of the system supplying the autotransformer. [235.9](https://2023.antflix.net#235.9) | https://2023.antflix.net#235.9 |
Chapter 2 Wiring and Protection | 235.10 | 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 that have a grounded neutral conductor. Switching devices in each tapped circuit shall have a pole in each ungrounded conductor. All poles of multipole switching devices s... | https://2023.antflix.net#235.10 |
Chapter 2 Wiring and Protection | 235.11 | The minimum number of branch circuits shall be determined from the total calculated load and the size or rating of the circuits used. In all installations, the number of circuits shall be sufficient to supply the load served. [235.11](https://2023.antflix.net#235.11) | https://2023.antflix.net#235.11 |
Chapter 2 Wiring and Protection | 235.18 | Branch circuits recognized by this article shall be rated in accordance with the maximum permitted ampere rating or setting of the overcurrent device. Where conductors of higher ampacity are used for any reason, the ampere rating or setting of the specified overcurrent device shall determine the circuit rating. [235.18... | https://2023.antflix.net#235.18 |
Chapter 2 Wiring and Protection | 235.19 | The ampacity of conductors shall be in accordance with 310.14 and 315.60, as applicable. Branch-circuit conductors shall be sized in accordance with 235.19(A) or (B). [235.19](https://2023.antflix.net#235.19) | https://2023.antflix.net#235.19 |
Chapter 2 Wiring and Protection | 235.19(A) | The ampacity of branch-circuit conductors shall not be less than 125 percent of the designed potential load of utilization equipment that will be operated simultaneously. [235.19(A)](https://2023.antflix.net#235.19(A)) | https://2023.antflix.net#235.19(A) |
Chapter 2 Wiring and Protection | 235.19(B) | For supervised installations, branch-circuit conductor sizing shall be permitted to be determined by qualified persons under engineering supervision. Supervised installations are defined as those portions of a facility where both of the following conditions are met: Conditions of design and installation are provided un... | https://2023.antflix.net#235.19(B) |
Chapter 2 Wiring and Protection | 235.20 | Branch-circuit conductors and equipment shall be protected by overcurrent protective devices that have a rating or setting that complies with 235.20(A) through (C). [235.20](https://2023.antflix.net#235.20) | https://2023.antflix.net#235.20 |
Chapter 2 Wiring and Protection | 235.20(A) | Where a branch circuit 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 branch ci... | https://2023.antflix.net#235.20(A) |
Chapter 2 Wiring and Protection | 235.20(B) | Conductors shall be protected in accordance with the ampacities specified in 310.14 or 315.60, as applicable. [235.20(B)](https://2023.antflix.net#235.20(B)) | https://2023.antflix.net#235.20(B) |
Chapter 2 Wiring and Protection | 235.20(C) | The rating or setting of the overcurrent protective device shall not exceed that specified in the applicable articles referenced in Table 240.3 for equipment. [235.20(C)](https://2023.antflix.net#235.20(C)) | https://2023.antflix.net#235.20(C) |
Chapter 2 Wiring and Protection | 235.22 | An individual branch circuit shall be permitted to supply any load for which it is rated, but in no case shall the load exceed the branch-circuit ampere rating. [235.22](https://2023.antflix.net#235.22) | https://2023.antflix.net#235.22 |
Chapter 2 Wiring and Protection | 235.23 | A branch circuit supplying two or more outlets or receptacles shall supply only the loads specified according to its size in accordance with 210.23(A) through (E) and as summarized in 210.24, and in no case shall the load exceed the branch-circuit ampere rating. [235.23](https://2023.antflix.net#235.23) | https://2023.antflix.net#235.23 |
Chapter 2 Wiring and Protection | 235.23(A) | A 15- or 20-ampere branch circuit shall be permitted to supply lighting outlets, lighting units, or other utilization equipment, or any combination of them, and shall comply with 235.23(A)(1) and (A)(2). [235.23(A)](https://2023.antflix.net#235.23(A)) | https://2023.antflix.net#235.23(A) |
Chapter 2 Wiring and Protection | 235.23(A)(1) | The rating of any one cord-and-plug-connected utilization equipment not fastened in place shall not exceed 80 percent of the branch-circuit ampere rating. [235.23(A)(1)](https://2023.antflix.net#235.23(A)(1)) | https://2023.antflix.net#235.23(A)(1) |
Chapter 2 Wiring and Protection | 235.23(A)(2) | The total rating of utilization equipment fastened in place, other than luminaires, shall not exceed 50 percent of the branch-circuit ampere rating where lighting units, cord-and-plug-connected utilization equipment not fastened in place, or both, are also supplied. [235.23(A)(2)](https://2023.antflix.net#235.23(A)(2)) | https://2023.antflix.net#235.23(A)(2) |
Chapter 2 Wiring and Protection | 235.23(B) | A 30-ampere branch circuit shall be permitted to supply fixed lighting units with heavy-duty lampholders in other than a dwelling unit(s) or utilization equipment in any occupancy. The rating of any one cord-and-plug-connected utilization equipment shall not exceed 80 percent of the branch-circuit ampere rating. [235.2... | https://2023.antflix.net#235.23(B) |
Chapter 2 Wiring and Protection | 235.23(C) | A 40- or 50-ampere branch circuit shall be permitted to supply cooking appliances that are fastened in place in any occupancy. In other than dwelling units, such circuits shall be permitted to supply fixed lighting units with heavy-duty lampholders, infrared heating units, or other utilization equipment. [235.23(C)](ht... | https://2023.antflix.net#235.23(C) |
Chapter 2 Wiring and Protection | 235.23(D) | Branch circuits larger than 50 amperes shall supply only nonlighting outlet loads. [235.23(D)](https://2023.antflix.net#235.23(D)) | https://2023.antflix.net#235.23(D) |
Chapter 2 Wiring and Protection | 235.63 | 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. [235.63](https://2023.antflix.net#235.63) | https://2023.antflix.net#235.63 |
Chapter 2 Wiring and Protection | 235.63(A) | 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-famil... | https://2023.antflix.net#235.63(A) |
Chapter 2 Wiring and Protection | 235.63(B) | In other than one- and two-family dwellings, a receptacle outlet shall be located as specified in 210.63(B)(1) and (B)(2). [235.63(B)](https://2023.antflix.net#235.63(B)) | https://2023.antflix.net#235.63(B) |
Chapter 2 Wiring and Protection | 235.63(B)(1) | The required receptacle outlet shall be located within the same room or area as the service equipment. [235.63(B)(1)](https://2023.antflix.net#235.63(B)(1)) | https://2023.antflix.net#235.63(B)(1) |
Chapter 2 Wiring and Protection | 235.63(B)(2) | 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. [235.63(B)(2)](https:/... | https://2023.antflix.net#235.63(B)(2) |
Chapter 2 Wiring and Protection | 235.201 | Part III covers the installation requirements, overcurrent protection requirements, minimum size, and ampacity of conductors for feeders over 1000 volts ac or 1500 volts dc, nominal. [235.201](https://2023.antflix.net#235.201) | https://2023.antflix.net#235.201 |
Chapter 2 Wiring and Protection | 235.202 | The ampacity of conductors shall be in accordance with 310.14 and 315.60 as applicable. Where installed, the size of the feeder-circuit grounded conductor shall not be smaller than that required by 250.122, except that 250.122(F) shall not apply where grounded conductors are run in parallel. Feeder conductors over 1000... | https://2023.antflix.net#235.202 |
Chapter 2 Wiring and Protection | 235.202(A) | The ampacity of feeder conductors shall not be less than the sum of the nameplate ratings of the transformers supplied when only transformers are supplied. [235.202(A)](https://2023.antflix.net#235.202(A)) | https://2023.antflix.net#235.202(A) |
Chapter 2 Wiring and Protection | 235.202(B) | The ampacity of feeders supplying a combination of transformers and utilization equipment shall not be less than the sum of the nameplate ratings of the transformers and 125 percent of the designed potential load of the utilization equipment that will be operated simultaneously. [235.202(B)](https://2023.antflix.net#23... | https://2023.antflix.net#235.202(B) |
Chapter 2 Wiring and Protection | 235.202(C) | For supervised installations, feeder conductor sizing shall be permitted to be determined by qualified persons under engineering supervision in accordance with 310.14(B) or 315.60(B). Supervised installations are defined as those portions of a facility where all of the following conditions are met: Conditions of design... | https://2023.antflix.net#235.202(C) |
Chapter 2 Wiring and Protection | 235.203 | Feeders shall be protected against overcurrent. [235.203](https://2023.antflix.net#235.203) | https://2023.antflix.net#235.203 |
Chapter 2 Wiring and Protection | 235.205 | 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 deman... | https://2023.antflix.net#235.205 |
Chapter 2 Wiring and Protection | 235.206 | 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 requi... | https://2023.antflix.net#235.206 |
Chapter 2 Wiring and Protection | 235.212(A) | The grounded conductor of a feeder, if insulated, shall be identified in accordance with 200.6. [235.212(A)](https://2023.antflix.net#235.212(A)) | https://2023.antflix.net#235.212(A) |
Chapter 2 Wiring and Protection | 235.212(B) | The equipment grounding conductor shall be identified in accordance with 250.119. [235.212(B)](https://2023.antflix.net#235.212(B)) | https://2023.antflix.net#235.212(B) |
Chapter 2 Wiring and Protection | 235.212(C) | Ungrounded conductors shall be identified in accordance with 235.212(C)(1) or (C)(2), as applicable. [235.212(C)](https://2023.antflix.net#235.212(C)) | https://2023.antflix.net#235.212(C) |
Chapter 2 Wiring and Protection | 235.212(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 235.212(C)(1)(a) and (C)(1)(b). Means of Identification. The means o... | https://2023.antflix.net#235.212(C)(1) |
Chapter 2 Wiring and Protection | 235.212(C)(2) | Where a feeder is supplied from a dc system operating at more than 1500 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 identifi... | https://2023.antflix.net#235.212(C)(2) |
Chapter 2 Wiring and Protection | 235.301 | Part IV covers requirements for outside branch circuits and feeders over 1000 volts ac or 1500 volts dc, nominal, that are run on or between buildings, structures, or poles on the premises; and electrical equipment and wiring for the supply of utilization equipment that is located on or attached to the outside of build... | https://2023.antflix.net#235.301 |
Chapter 2 Wiring and Protection | 235.306 | For overhead spans, open individual conductors shall not be smaller than 6 AWG copper or 4 AWG aluminum where open individual conductors and 8 AWG copper or 6 AWG aluminum where in cable. [235.306](https://2023.antflix.net#235.306) | https://2023.antflix.net#235.306 |
Chapter 2 Wiring and Protection | 235.310 | The installation of outside wiring on surfaces of buildings (or other structures) shall be installed as provided in 305.3. [235.310](https://2023.antflix.net#235.310) | https://2023.antflix.net#235.310 |
Chapter 2 Wiring and Protection | 235.314 | Conductors shall comply with the spacings provided in 110.36 and 495.24. [235.314](https://2023.antflix.net#235.314) | https://2023.antflix.net#235.314 |
Chapter 2 Wiring and Protection | 235.339 | The feeder or branch-circuit disconnecting means shall have a rating of not less than the calculated load to be supplied, determined in accordance with Parts I and II of Article 220 for branch circuits, Part III or IV of Article 220 for feeders, or Part V of Article 220 for farm loads. [235.339](https://2023.antflix.ne... | https://2023.antflix.net#235.339 |
Chapter 2 Wiring and Protection | 235.350 | The sizing of conductors over 1000 volts shall be in accordance with 235.19(A) for branch circuits and 235.19(B) for feeders. [235.350](https://2023.antflix.net#235.350) | https://2023.antflix.net#235.350 |
Chapter 2 Wiring and Protection | 235.351 | Where oil switches or air, oil, vacuum, or sulfur hexafluoride circuit breakers constitute a building disconnecting means, an isolating switch with visible break contacts and meeting the requirements of 235.404(B), (C), and (D) shall be installed on the supply side of the disconnecting means and all associated equipmen... | https://2023.antflix.net#235.351 |
Chapter 2 Wiring and Protection | 235.352(A) | A building or structure disconnecting means shall be located in accordance with 225.31 (B), or, if not readily accessible, it shall be operable by mechanical linkage from a readily accessible point. For multibuilding industrial installations under single management, it shall be permitted to be electrically operated by ... | https://2023.antflix.net#235.352(A) |
Chapter 2 Wiring and Protection | 235.352(B) | Each building or structure disconnect shall simultaneously disconnect all ungrounded supply conductors it controls and shall have a fault-closing rating not less than the available fault current at its supply terminals. Exception: Where the individual disconnecting means consists of fused cutouts, the simultaneous disc... | https://2023.antflix.net#235.352(B) |
Chapter 2 Wiring and Protection | 235.352(C) | Disconnecting means shall be lockable open in accordance with 110.25. Exception: Where an individual disconnecting means consists of fused cutouts, a suitable enclosure capable of being locked and sized to contain all cutout fuse holders shall be installed at a convenient location to the fused cutouts. [235.352(C)](htt... | https://2023.antflix.net#235.352(C) |
Chapter 2 Wiring and Protection | 235.352(D) | Disconnecting means shall clearly indicate whether they are in the open "off" or closed "on" position. [235.352(D)](https://2023.antflix.net#235.352(D)) | https://2023.antflix.net#235.352(D) |
Chapter 2 Wiring and Protection | 235.352(E) | Where disconnecting means handles are operated vertically, the "up" position of the handle shall be the "on" position. Exception: A switching device having more than one "on" position, such as a double throw switch, shall not be required to comply with this requirement. [235.352(E)](https://2023.antflix.net#235.352(E)) | https://2023.antflix.net#235.352(E) |
Chapter 2 Wiring and Protection | 235.352(F) | Where a building or structure has any combination of feeders, branch circuits, or services passing through or supplying it, a permanent plaque or directory shall be installed at each feeder and branch-circuit disconnect location that denotes all other services, feeders, or branch circuits supplying that building or str... | https://2023.antflix.net#235.352(F) |
Chapter 2 Wiring and Protection | 235.356(A) | The complete electrical system design, including settings for protective, switching, and control circuits, shall be prepared in advance and made available on request to the authority having jurisdiction and shall be performance tested when first installed on-site. Each protective, switching, and control circuit shall b... | https://2023.antflix.net#235.356(A) |
Chapter 2 Wiring and Protection | 235.356(A)(1) | All instrument transformers shall be tested to verify correct polarity and burden. [235.356(A)(1)](https://2023.antflix.net#235.356(A)(1)) | https://2023.antflix.net#235.356(A)(1) |
Chapter 2 Wiring and Protection | 235.356(A)(2) | Each protective relay shall be demonstrated to operate by injecting current or voltage, or both, at the associated instrument transformer output terminal and observing that the associated switching and signaling functions occur correctly and in proper time and sequence to accomplish the protective function intended. [2... | https://2023.antflix.net#235.356(A)(2) |
Chapter 2 Wiring and Protection | 235.356(A)(3) | Each switching circuit shall be observed to operate the associated equipment being switched. [235.356(A)(3)](https://2023.antflix.net#235.356(A)(3)) | https://2023.antflix.net#235.356(A)(3) |
Chapter 2 Wiring and Protection | 235.356(A)(4) | Each control or signal circuit shall be observed to perform its proper control function or produce a correct signal output. [235.356(A)(4)](https://2023.antflix.net#235.356(A)(4)) | https://2023.antflix.net#235.356(A)(4) |
Chapter 2 Wiring and Protection | 235.356(A)(5) | All metering circuits shall be verified to operate correctly from voltage and current sources in a similar manner to protective relay circuits. [235.356(A)(5)](https://2023.antflix.net#235.356(A)(5)) | https://2023.antflix.net#235.356(A)(5) |
Chapter 2 Wiring and Protection | 235.356(A)(6) | Complete acceptance tests shall be performed, after the substation installation is completed, on all assemblies, equipment, conductors, and control and protective systems, as applicable, to verify the integrity of all the systems. [235.356(A)(6)](https://2023.antflix.net#235.356(A)(6)) | https://2023.antflix.net#235.356(A)(6) |
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