Chapter stringclasses 6
values | Reference stringlengths 1 17 | Body stringlengths 62 23.1k | URL stringlengths 26 42 |
|---|---|---|---|
Chaptewr 5 Special Occupancies | 501.105(B)(2) | Switches, circuit breakers, and make-and-break contacts of pushbuttons, relays, alarm bells, and horns shall have enclosures identified for Class I, Division 1 locations in accordance with 501.105(A). Exception: General-purpose enclosures shall be permitted if current-interrupting contacts comply with one of the follow... | https://2023.antflix.net#501.105(B)(2) |
Chaptewr 5 Special Occupancies | 501.105(B)(3) | Resistors, resistance devices, thermionic tubes, rectifiers, and similar equipment that are used in or in connection with meters, instruments, and relays shall comply with 501.105(A). Exception: General-purpose-type enclosures shall be permitted if such equipment is without make-and-break or sliding contacts [other tha... | https://2023.antflix.net#501.105(B)(3) |
Chaptewr 5 Special Occupancies | 501.105(B)(4) | Transformer windings, impedance coils, solenoids, and other windings that do not incorporate sliding or make-or-break contacts shall be provided with enclosures. General-purpose-type enclosures shall be permitted. [501.105(B)(4)](https://2023.antflix.net#501.105(B)(4)) | https://2023.antflix.net#501.105(B)(4) |
Chaptewr 5 Special Occupancies | 501.105(B)(5) | Where general-purpose enclosures are permitted in 501.105(B)(2) through (B)(4), fuses for overcurrent protection of instrument circuits not subject to overloading in normal use shall be permitted to be mounted in general-purpose enclosures if each such fuse is preceded by a switch complying with 501.105(B)(2). [501.105... | https://2023.antflix.net#501.105(B)(5) |
Chaptewr 5 Special Occupancies | 501.105(B)(6) | To facilitate replacements, process control instruments shall be permitted to be connected through flexible cord and attachment plug and receptacle if all of the following conditions apply: The attachment plug and receptacle are listed for use in Class I, Division 2 locations and listed for use with flexible cords.Exce... | https://2023.antflix.net#501.105(B)(6) |
Chaptewr 5 Special Occupancies | 501.115(A) | In Class I, Division 1 locations, switches, circuit breakers, motor controllers, and fuses, including pushbuttons, relays, and similar devices, shall be provided with enclosures, and the enclosure in each case, together with the enclosed apparatus, shall be identified as a complete assembly for use in Class I locations... | https://2023.antflix.net#501.115(A) |
Chaptewr 5 Special Occupancies | 501.115(B) | Switches, circuit breakers, motor controllers, and fuses in Class I, Division 2 locations shall comply with 501.115(B)(1) through (B)(4). [501.115(B)](https://2023.antflix.net#501.115(B)) | https://2023.antflix.net#501.115(B) |
Chaptewr 5 Special Occupancies | 501.115(B)(1) | Circuit breakers, motor controllers, and switches intended to interrupt current in the normal performance of the function for which they are installed shall be provided with enclosures identified for Class I, Division 1 locations in accordance with 501.105(A), unless general-purpose enclosures are provided and any of t... | https://2023.antflix.net#501.115(B)(1) |
Chaptewr 5 Special Occupancies | 501.115(B)(2) | Fused or unfused disconnect and isolating switches for transformers or capacitor banks that are not intended to interrupt current in the normal performance of the function for which they are installed shall be permitted to be installed in general-purpose enclosures. [501.115(B)(2)](https://2023.antflix.net#501.115(B)(2... | https://2023.antflix.net#501.115(B)(2) |
Chaptewr 5 Special Occupancies | 501.115(B)(3) | For the protection of motors, appliances, and lamps, other than as provided in 501.115(B)(4), standard plug or cartridge fuses shall be permitted, provided they are placed within enclosures identified for the location; or fuses shall be permitted if they are within general-purpose enclosures, and if they are of a type ... | https://2023.antflix.net#501.115(B)(3) |
Chaptewr 5 Special Occupancies | 501.115(B)(4) | Listed cartridge fuses shall be permitted as supplementary protection within luminaires. [501.115(B)(4)](https://2023.antflix.net#501.115(B)(4)) | https://2023.antflix.net#501.115(B)(4) |
Chaptewr 5 Special Occupancies | 501.120 | Transformers, impedance coils, and resistors used as, or in conjunction with, control equipment for motors, generators, and appliances shall comply with 501.120(A) and (B). [501.120](https://2023.antflix.net#501.120) | https://2023.antflix.net#501.120 |
Chaptewr 5 Special Occupancies | 501.120(A) | In Class I, Division 1 locations, transformers, impedance coils, and resistors, together with any switching mechanism associated with them, shall be provided with enclosures identified for Class I, Division 1 locations in accordance with 501.105(A). [501.120(A)](https://2023.antflix.net#501.120(A)) | https://2023.antflix.net#501.120(A) |
Chaptewr 5 Special Occupancies | 501.120(B) | In Class I, Division 2 locations, control transformers and resistors shall comply with 501.120(B)(1) through (B)(3). [501.120(B)](https://2023.antflix.net#501.120(B)) | https://2023.antflix.net#501.120(B) |
Chaptewr 5 Special Occupancies | 501.120(B)(1) | Switching mechanisms used in conjunction with transformers, impedance coils, and resistors shall comply with 501.115(B). [501.120(B)(1)](https://2023.antflix.net#501.120(B)(1)) | https://2023.antflix.net#501.120(B)(1) |
Chaptewr 5 Special Occupancies | 501.120(B)(2) | Enclosures for windings of transformers, solenoids, or impedance coils shall be permitted to be of the general-purpose type. [501.120(B)(2)](https://2023.antflix.net#501.120(B)(2)) | https://2023.antflix.net#501.120(B)(2) |
Chaptewr 5 Special Occupancies | 501.120(B)(3) | Resistors shall be provided with enclosures; and the assembly shall be identified for Class I locations, unless resistance is nonvariable and maximum operating temperature, in degrees Celsius, will not exceed 80 percent of the autoignition temperature of the gas or vapor involved or the resistor has been tested and fou... | https://2023.antflix.net#501.120(B)(3) |
Chaptewr 5 Special Occupancies | 501.125(A) | In Class I, Division 1 locations, motors, generators, and other rotating electrical machinery shall be one of the following: Identified for Class I, Division 1 locationsOf the totally enclosed type supplied with positive-pressure ventilation from a source of clean air with discharge to a safe area, so arranged to preve... | https://2023.antflix.net#501.125(A) |
Chaptewr 5 Special Occupancies | 501.125(B) | In Class I, Division 2 locations, motors, generators, and other rotating electrical machinery shall comply with (1), (2), or (3). They shall also comply with (4) and (5), if applicable. Be identified for Class I, Division 2 locations, orBe identified for Class I, Division 1 locations where sliding contacts, centrifugal... | https://2023.antflix.net#501.125(B) |
Chaptewr 5 Special Occupancies | 501.130 | Luminaires shall comply with 501.130(A) or (B). [501.130](https://2023.antflix.net#501.130) | https://2023.antflix.net#501.130 |
Chaptewr 5 Special Occupancies | 501.130(A) | In Class I, Division 1 locations, luminaires shall comply with 501.130(A)(1) through (A)(4). [501.130(A)](https://2023.antflix.net#501.130(A)) | https://2023.antflix.net#501.130(A) |
Chaptewr 5 Special Occupancies | 501.130(A)(1) | Each luminaire shall be identified as a complete assembly for the Class I, Division 1 location and shall be clearly marked to indicate the maximum wattage of lamps for which it is identified. Luminaires intended for portable use shall be specifically listed as a complete assembly for that use. [501.130(A)(1)](https://2... | https://2023.antflix.net#501.130(A)(1) |
Chaptewr 5 Special Occupancies | 501.130(A)(2) | Each luminaire shall be protected against physical damage by a suitable guard or by location. [501.130(A)(2)](https://2023.antflix.net#501.130(A)(2)) | https://2023.antflix.net#501.130(A)(2) |
Chaptewr 5 Special Occupancies | 501.130(A)(3) | Pendant luminaires shall be suspended by and supplied through threaded rigid metal conduit stems or threaded steel intermediate conduit stems, and threaded joints shall be provided with set-screws or other effective means to prevent loosening. For stems longer than 300 mm (12 in.), permanent and effective bracing again... | https://2023.antflix.net#501.130(A)(3) |
Chaptewr 5 Special Occupancies | 501.130(A)(4) | Boxes, box assemblies, or fittings used for the support of luminaires shall be identified for Class I locations. [501.130(A)(4)](https://2023.antflix.net#501.130(A)(4)) | https://2023.antflix.net#501.130(A)(4) |
Chaptewr 5 Special Occupancies | 501.130(B) | In Class I, Division 2 locations, luminaires shall comply with 501.130(B)(1) through (B)(6). [501.130(B)](https://2023.antflix.net#501.130(B)) | https://2023.antflix.net#501.130(B) |
Chaptewr 5 Special Occupancies | 501.130(B)(1) | Where lamps are of a size or type that may, under normal operating conditions, reach surface temperatures exceeding 80 percent of the autoignition temperature in degrees Celsius of the gas or vapor involved, luminaires shall comply with 501.130(A)(1) or shall be of a type that has been tested in order to determine the ... | https://2023.antflix.net#501.130(B)(1) |
Chaptewr 5 Special Occupancies | 501.130(B)(2) | Luminaires shall be protected from physical damage by suitable guards or by location. Where there is danger that falling sparks or hot metal from lamps or luminaires might ignite localized concentrations of flammable vapors or gases, suitable enclosures or other effective protective means shall be provided. [501.130(B)... | https://2023.antflix.net#501.130(B)(2) |
Chaptewr 5 Special Occupancies | 501.130(B)(3) | Pendant luminaires shall be suspended by threaded rigid metal conduit stems, threaded steel intermediate metal conduit stems, or other approved means. For rigid stems longer than 300 mm (12 in.), permanent and effective bracing against lateral displacement shall be provided at a level not more than 300 mm (12 in.) abov... | https://2023.antflix.net#501.130(B)(3) |
Chaptewr 5 Special Occupancies | 501.130(B)(4) | Portable lighting equipment shall comply with 501.130(B)(4)(a) or (B)(4)(b). Portable lighting equipment shall comply with 501.130(B)(1).Portable lighting equipment mounted on movable stands and connected by flexible cords in accordance with 501.140 shall be permitted to comply with 501.130(B)(1), where mounted in any ... | https://2023.antflix.net#501.130(B)(4) |
Chaptewr 5 Special Occupancies | 501.130(B)(5) | Switches that are a part of a luminaire or of an individual lampholder shall comply with 501.115(B)(1). [501.130(B)(5)](https://2023.antflix.net#501.130(B)(5)) | https://2023.antflix.net#501.130(B)(5) |
Chaptewr 5 Special Occupancies | 501.130(B)(6) | Starting and control equipment for electric-discharge lamps shall comply with 501.120(B). Exception: A thermal protector potted into a thermally protected fluorescent lamp ballast if the luminaire is identified for the location. [501.130(B)(6)](https://2023.antflix.net#501.130(B)(6)) | https://2023.antflix.net#501.130(B)(6) |
Chaptewr 5 Special Occupancies | 501.135(A) | In Class I, Division 1 locations, all utilization equipment shall be identified for Class I, Division 1 locations. [501.135(A)](https://2023.antflix.net#501.135(A)) | https://2023.antflix.net#501.135(A) |
Chaptewr 5 Special Occupancies | 501.135(B) | 2. In Class I, Division 2 locations, all utilization equipment shall comply with 501.135(B)(1) through (B)(4). [501.135(B)](https://2023.antflix.net#501.135(B)) | https://2023.antflix.net#501.135(B) |
Chaptewr 5 Special Occupancies | 501.135(B)(1) | Electrically heated utilization equipment shall meet one of the following requirements: The heater shall not exceed 80 percent of the autoignition temperature in degrees Celsius of the gas or vapor involved on any surface that is exposed to the gas or vapor when continuously energized at the maximum rated ambient tempe... | https://2023.antflix.net#501.135(B)(1) |
Chaptewr 5 Special Occupancies | 501.135(B)(2) | Motors of motor-driven utilization equipment shall comply with 501.125(B). [501.135(B)(2)](https://2023.antflix.net#501.135(B)(2)) | https://2023.antflix.net#501.135(B)(2) |
Chaptewr 5 Special Occupancies | 501.135(B)(3) | Switches, circuit breakers, and fuses shall comply with 501.115(B). [501.135(B)(3)](https://2023.antflix.net#501.135(B)(3)) | https://2023.antflix.net#501.135(B)(3) |
Chaptewr 5 Special Occupancies | 501.135(B)(4) | Luminaires shall comply with 501.130(B). [501.135(B)(4)](https://2023.antflix.net#501.135(B)(4)) | https://2023.antflix.net#501.135(B)(4) |
Chaptewr 5 Special Occupancies | 501.140(A) | Flexible cord shall be permitted as follows: For connection between portable lighting equipment or other portable utilization equipment and the fixed portion of their supply circuit. The flexible cord shall be attached to the utilization equipment with a cord connector listed for the protection technique of the equipme... | https://2023.antflix.net#501.140(A) |
Chaptewr 5 Special Occupancies | 501.140(B) | Where flexible cords are used, the cords shall comply with all of the following: Be of a type listed for extra-hard usageContain, in addition to the conductors of the circuit, an equipment grounding conductor complying with 400.23Be supported by clamps or by other suitable means in such a manner that there is no tensio... | https://2023.antflix.net#501.140(B) |
Chaptewr 5 Special Occupancies | 501.141 | Flexible cables installed in Class I, Division 2 locations shall comply with 501.141 (A) and (B). [501.141](https://2023.antflix.net#501.141) | https://2023.antflix.net#501.141 |
Chaptewr 5 Special Occupancies | 501.141(A) | Flexible cables shall be permitted to be installed in accordance with 501.141(A)(1) and (A)(2). [501.141(A)](https://2023.antflix.net#501.141(A)) | https://2023.antflix.net#501.141(A) |
Chaptewr 5 Special Occupancies | 501.141(A)(1) | Flexible cables in other than nonincendive field wiring applications shall be permitted in accordance with the following: Flexible cables shall be permitted to connect two pieces of electrical equipment by means of a cable assembly installed in accordance with 501.141(B)(2)(a) or (B)(2)(b).Flexible cables shall be perm... | https://2023.antflix.net#501.141(A)(1) |
Chaptewr 5 Special Occupancies | 501.141(A)(2) | Flexible cables in nonincendive field wiring applications shall be permitted to be used in accordance with 501.10(B)(3). [501.141(A)(2)](https://2023.antflix.net#501.141(A)(2)) | https://2023.antflix.net#501.141(A)(2) |
Chaptewr 5 Special Occupancies | 501.141(B) | If flexible cables are used as permitted in 501.141(A), the associated cable assemblies shall comply with 501.141(B)(1) through (B)(3). [501.141(B)](https://2023.antflix.net#501.141(B)) | https://2023.antflix.net#501.141(B) |
Chaptewr 5 Special Occupancies | 501.141(B)(1) | Listed Type P cables shall comply with 501.141(A)(1) and shall be installed as required in Part II of Article 337. The associated cable assemblies shall comply with the requirements of 501.141 (B)(2). [501.141(B)(1)](https://2023.antflix.net#501.141(B)(1)) | https://2023.antflix.net#501.141(B)(1) |
Chaptewr 5 Special Occupancies | 501.141(B)(2) | Terminations shall comply with 501.141(B)(2)(a), (B)(2)(b), or (B)(2)(c). Connecting Two Devices or Pieces of Electrical Utilization Equipment Together. The cable connectors on each end of the cable shall be listed for use in Class I, Division 2 locations and listed for the type of cable being used.Connecting Two Devic... | https://2023.antflix.net#501.141(B)(2) |
Chaptewr 5 Special Occupancies | 501.141(B)(3) | Flexible cable shall be installed in accordance with 501.141(B)(3)(a) through (B)(3)(c) to protect against the disconnection of the cable connectors when energized. Switch. A switch complying with the requirements of 501.105(B)(2) shall be provided to disconnect power so that cable connectors are not depended on as a d... | https://2023.antflix.net#501.141(B)(3) |
Chaptewr 5 Special Occupancies | 501.145 | Receptacles and attachment plugs shall be listed for the location, except as permitted by 501.105(B)(6). [501.145](https://2023.antflix.net#501.145) | https://2023.antflix.net#501.145 |
Chaptewr 5 Special Occupancies | 501.145(A) | Receptacles shall be part of the premises wiring, except as permitted by 501.140(A). [501.145(A)](https://2023.antflix.net#501.145(A)) | https://2023.antflix.net#501.145(A) |
Chaptewr 5 Special Occupancies | 501.145(B) | Attachment plugs shall be of the type that provides connection to the equipment grounding conductor of a permitted flexible cord. [501.145(B)](https://2023.antflix.net#501.145(B)) | https://2023.antflix.net#501.145(B) |
Chaptewr 5 Special Occupancies | 501.150(A) | In Class I, Division 1 locations, all apparatus and equipment of signaling, alarm, remote-control, and communications systems, regardless of voltage, shall be identified for Class I, Division 1 locations, and all wiring shall comply with 501.10(A), 501.15(A), and 501.15(C). [501.150(A)](https://2023.antflix.net#501.150... | https://2023.antflix.net#501.150(A) |
Chaptewr 5 Special Occupancies | 501.150(B) | In Class I, Division 2 locations, signaling, alarm, remote-control, and communications systems shall comply with 501.150(B)(1) through (B)(4). [501.150(B)](https://2023.antflix.net#501.150(B)) | https://2023.antflix.net#501.150(B) |
Chaptewr 5 Special Occupancies | 501.150(B)(1) | Switches, circuit breakers, and make-and-break contacts of pushbuttons, relays, alarm bells, and horns shall have enclosures identified for Class I, Division 1 locations in accordance with 501.105(A). Exception: General-purpose enclosures shall be permitted if current-interrupting contacts are one of the following: (1)... | https://2023.antflix.net#501.150(B)(1) |
Chaptewr 5 Special Occupancies | 501.150(B)(2) | Resistors, resistance devices, thermionic tubes, rectifiers, and similar equipment shall comply with 501.105(B)(3). [501.150(B)(2)](https://2023.antflix.net#501.150(B)(2)) | https://2023.antflix.net#501.150(B)(2) |
Chaptewr 5 Special Occupancies | 501.150(B)(3) | Enclosures shall be provided for lightning protective devices and for fuses. Such enclosures shall be permitted to be of the general-purpose type. [501.150(B)(3)](https://2023.antflix.net#501.150(B)(3)) | https://2023.antflix.net#501.150(B)(3) |
Chaptewr 5 Special Occupancies | 501.150(B)(4) | All wiring shall comply with 501.10(B), 501.15(B), and 501.15(C). [501.150(B)(4)](https://2023.antflix.net#501.150(B)(4)) | https://2023.antflix.net#501.150(B)(4) |
Chaptewr 5 Special Occupancies | 502.1 | This article covers the requirements for electrical and electronic equipment and wiring for all voltages in Class II, Division 1 and 2 locations where fire or explosion hazards may exist due to combustible dust. [502.1](https://2023.antflix.net#502.1) | https://2023.antflix.net#502.1 |
Chaptewr 5 Special Occupancies | 502.5 | Explosionproof equipment and wiring shall not be required and shall not be acceptable in Class II locations unless also identified for such locations. [502.5](https://2023.antflix.net#502.5) | https://2023.antflix.net#502.5 |
Chaptewr 5 Special Occupancies | 502.6 | Equipment listed and marked in accordance with 506.9(C)(2) for Zone 20 locations shall be permitted in Class II, Division 1 locations for the same dust atmosphere; and with a suitable temperature class. Equipment listed and marked in accordance with 506.9(C)(2) for Zone 20, 21, or 22 locations shall be permitted in Cla... | https://2023.antflix.net#502.6 |
Chaptewr 5 Special Occupancies | 502.10 | Wiring methods shall comply with 502.10(A) or (B). Informational Note: See Article 100 for the definition of restricted industrial establishment [as applied to hazardous (classified) locations]. [502.10](https://2023.antflix.net#502.10) | https://2023.antflix.net#502.10 |
Chaptewr 5 Special Occupancies | 502.10(A)(1) | In Class II, Division 1 locations, the following wiring methods shall be permitted: Threaded rigid metal conduit (RMC) or threaded intermediate metal conduit (IMC), including conduit systems with supplemental corrosion protection coatings.Type MI cable with termination fittings listed for the location. Type MI cable sh... | https://2023.antflix.net#502.10(A)(1) |
Chaptewr 5 Special Occupancies | 502.10(A)(2) | Where flexible connections are necessary, one or more of the following shall also be permitted: Dusttight flexible connectors.Liquidtight flexible metal conduit (LFMC) with listed fittings and bonded in accordance with 502.30(B).Liquidtight flexible nonmetallic conduit (LFNC) with listed fittings.Interlocked armor Type... | https://2023.antflix.net#502.10(A)(2) |
Chaptewr 5 Special Occupancies | 502.10(A)(3) | Boxes and fittings shall be provided with threaded bosses for connection to conduit or cable terminations and shall be dusttight. Boxes and fittings in which taps, joints, or terminal connections are made, or that are used in Group E locations, shall be identified for Class II locations. Informational Note: See ANSI/UL... | https://2023.antflix.net#502.10(A)(3) |
Chaptewr 5 Special Occupancies | 502.10(B) | Wiring methods installed in Class II, Division 2 locations shall be in accordance with 502.10(B)(1) through (B)(4). [502.10(B)](https://2023.antflix.net#502.10(B)) | https://2023.antflix.net#502.10(B) |
Chaptewr 5 Special Occupancies | 502.10(B)(1) | In Class II, Division 2 locations, the following wiring methods shall be permitted: All wiring methods permitted in 502.10(A).Rigid metal conduit (RMC) or intermediate metal conduit (IMC) with listed threaded or threadless fittings, including conduit systems with supplemental corrosion protection coatings.Dusttight wir... | https://2023.antflix.net#502.10(B)(1) |
Chaptewr 5 Special Occupancies | 502.10(B)(2) | If flexibility is necessary, 502.10(A)(2) shall apply. [502.10(B)(2)](https://2023.antflix.net#502.10(B)(2)) | https://2023.antflix.net#502.10(B)(2) |
Chaptewr 5 Special Occupancies | 502.10(B)(3) | Nonincendive field wiring shall be permitted using any of the wiring methods permitted for unclassified locations. Nonincendive field wiring systems shall be installed in accordance with the control drawing(s). Simple apparatus, not shown on the control drawing, shall be permitted in a nonincendive field wiring circuit... | https://2023.antflix.net#502.10(B)(3) |
Chaptewr 5 Special Occupancies | 502.10(B)(4) | All boxes and fittings shall be dust-tight. [502.10(B)(4)](https://2023.antflix.net#502.10(B)(4)) | https://2023.antflix.net#502.10(B)(4) |
Chaptewr 5 Special Occupancies | 502.15 | If a raceway provides communication between an enclosure that is required to be dust-ignitionproof and one that is not, suitable means shall be provided to prevent the entrance of dust into the dust-ignitionproof enclosure through the raceway. One of the following means shall be permitted: A permanent and effective sea... | https://2023.antflix.net#502.15 |
Chaptewr 5 Special Occupancies | 502.25 | There shall be no uninsulated exposed parts, such as electrical conductors, buses, terminals, or components, that operate at more than 30 volts (15 volts in wet locations). These parts shall additionally be protected by a protection technique according to 500.7(E), (F), or (G) that is suitable for the location. [502.25... | https://2023.antflix.net#502.25 |
Chaptewr 5 Special Occupancies | 502.30 | Regardless of the voltage of the electrical system, wiring systems and equipment shall comply with 502.30(A) and (B). [502.30](https://2023.antflix.net#502.30) | https://2023.antflix.net#502.30 |
Chaptewr 5 Special Occupancies | 502.30(A) | Wiring systems and equipment shall be grounded in accordance with Part I and Part VI of Article 250, as applicable. [502.30(A)](https://2023.antflix.net#502.30(A)) | https://2023.antflix.net#502.30(A) |
Chaptewr 5 Special Occupancies | 502.30(B) | Bonding shall comply with Part I and Part V of Article 250, as applicable, and 502.30(B)(1) and (B)(2). [502.30(B)](https://2023.antflix.net#502.30(B)) | https://2023.antflix.net#502.30(B) |
Chaptewr 5 Special Occupancies | 502.30(B)(1) | Bonding shall comply with 502.30(B)(1)(a) and (B)(1)(b). The locknut-bushing and double-locknut types of contacts shall not be depended on for bonding purposes, but bonding jumpers with identified fittings or other approved means of bonding shall be used. These bonding means shall apply to all metal raceways, fittings,... | https://2023.antflix.net#502.30(B)(1) |
Chaptewr 5 Special Occupancies | 502.30(B)(2) | Liquidtight flexible metal conduit shall comply with 502.30(B)(2)(a) and (B)(2)(b). Liquidtight flexible metal conduit shall include an equipment bonding jumper of the wire type in accordance with 250.102.In Class II, Division 2 locations, the bonding jumper shall not be required where all of the following conditions a... | https://2023.antflix.net#502.30(B)(2) |
Chaptewr 5 Special Occupancies | 502.35 | Surge arresters and surge-protective devices installed in a Class II, Division 1 location shall be in suitable enclosures. Surge-protective capacitors shall be of a type designed for specific duty. [502.35](https://2023.antflix.net#502.35) | https://2023.antflix.net#502.35 |
Chaptewr 5 Special Occupancies | 502.100(A) | In Class II, Division 1 locations, transformers and capacitors shall comply with 502.100(A)(1) through (A)(3). [502.100(A)](https://2023.antflix.net#502.100(A)) | https://2023.antflix.net#502.100(A) |
Chaptewr 5 Special Occupancies | 502.100(A)(1) | Transformers and capacitors containing a liquid that will burn shall be installed only in vaults complying with 450.41 through 450.48, and, in addition, (1), (2), and (3) shall apply. Doors or other openings communicating with the Division 1 location shall have self-closing fire doors on both sides of the wall, and the... | https://2023.antflix.net#502.100(A)(1) |
Chaptewr 5 Special Occupancies | 502.100(A)(2) | Transformers and capacitors that do not contain a liquid that will burn shall be installed in vaults complying with 450.41 through 450.48 or be identified as a complete assembly, including terminal connections. [502.100(A)(2)](https://2023.antflix.net#502.100(A)(2)) | https://2023.antflix.net#502.100(A)(2) |
Chaptewr 5 Special Occupancies | 502.100(A)(3) | No transformer or capacitor shall be installed in a Class II, Division 1, Group E location. [502.100(A)(3)](https://2023.antflix.net#502.100(A)(3)) | https://2023.antflix.net#502.100(A)(3) |
Chaptewr 5 Special Occupancies | 502.100(B) | In Class II, Division 2 locations, transformers and capacitors shall comply with 502.100(B)(1) through (B)(3). [502.100(B)](https://2023.antflix.net#502.100(B)) | https://2023.antflix.net#502.100(B) |
Chaptewr 5 Special Occupancies | 502.100(B)(1) | Transformers and capacitors containing a liquid that will burn shall be installed in vaults that comply with 450.41 through 450.48. [502.100(B)(1)](https://2023.antflix.net#502.100(B)(1)) | https://2023.antflix.net#502.100(B)(1) |
Chaptewr 5 Special Occupancies | 502.100(B)(2) | Transformers containing askarel and rated in excess of 25 kVA shall be as follows: Provided with pressure-relief ventsProvided with a means for absorbing any gases generated by arcing inside the case, or the pressure-relief vents shall be connected to a chimney or flue that will carry such gases outside the buildingHav... | https://2023.antflix.net#502.100(B)(2) |
Chaptewr 5 Special Occupancies | 502.100(B)(3) | Dry-type transformers shall be installed in vaults or shall have their windings and terminal connections enclosed in tight metal housings without ventilating or other openings and shall operate at not over 600 volts, nominal. [502.100(B)(3)](https://2023.antflix.net#502.100(B)(3)) | https://2023.antflix.net#502.100(B)(3) |
Chaptewr 5 Special Occupancies | 502.115(A) | In Class II, Division 1 locations, switches, circuit breakers, motor controllers, fuses, pushbuttons, relays, and similar devices shall be provided with enclosures identified for the location. [502.115(A)](https://2023.antflix.net#502.115(A)) | https://2023.antflix.net#502.115(A) |
Chaptewr 5 Special Occupancies | 502.115(B) | In Class IL Division 2 locations, enclosures for fuses, switches, circuit breakers, and motor controllers, including push buttons, relays, and similar devices, shall be dusttight or otherwise identified for the location. [502.115(B)](https://2023.antflix.net#502.115(B)) | https://2023.antflix.net#502.115(B) |
Chaptewr 5 Special Occupancies | 502.120(A) | In Class II Division 1 locations, control transformers, solenoids, impedance coils, resistors, and any overcurrent devices or switching mechanisms associated with them shall be provided with enclosures identified for the location. [502.120(A)](https://2023.antflix.net#502.120(A)) | https://2023.antflix.net#502.120(A) |
Chaptewr 5 Special Occupancies | 502.120(B) | In Class II, Division 2 locations, transformers and resistors shall comply with 502.120(B)(1) through (B)(3). [502.120(B)](https://2023.antflix.net#502.120(B)) | https://2023.antflix.net#502.120(B) |
Chaptewr 5 Special Occupancies | 502.120(B)(1) | Switching mechanisms (including overcurrent devices) associated with control transformers, solenoids, impedance coils, and resistors shall be provided with enclosures that are dusttight or otherwise identified for the location. [502.120(B)(1)](https://2023.antflix.net#502.120(B)(1)) | https://2023.antflix.net#502.120(B)(1) |
Chaptewr 5 Special Occupancies | 502.120(B)(2) | Where not located in the same enclosure with switching mechanisms, control transformers, solenoids, and impedance coils shall be provided with enclosures that are dusttight or otherwise identified for the location. [502.120(B)(2)](https://2023.antflix.net#502.120(B)(2)) | https://2023.antflix.net#502.120(B)(2) |
Chaptewr 5 Special Occupancies | 502.120(B)(3) | Resistors and resistance devices shall have dust-ignitionproof enclosures that are dusttight or otherwise identified for the location. [502.120(B)(3)](https://2023.antflix.net#502.120(B)(3)) | https://2023.antflix.net#502.120(B)(3) |
Chaptewr 5 Special Occupancies | 502.125(A) | In Class II, Division 1 locations, motors, generators, and other rotating electrical machinery shall be in conformance with either of the following: Identified for the locationTotally enclosed pipe-ventilated [502.125(A)](https://2023.antflix.net#502.125(A)) | https://2023.antflix.net#502.125(A) |
Chaptewr 5 Special Occupancies | 502.125(B) | In Class II, Division 2 locations, motors, generators, and other rotating electrical equipment shall be totally enclosed nonventilated, totally enclosed pipe-ventilated, totally enclosed water-air-cooled, totally enclosed fan-cooled, or dust-ignitionproof, for which maximum full-load external temperature shall be in ac... | https://2023.antflix.net#502.125(B) |
Chaptewr 5 Special Occupancies | 502.128 | Ventilating pipes for motors, generators, or other rotating electrical machinery, or for enclosures for electrical equipment, shall be of metal not less than 0.53 mm (0.021 in.) in thickness or of equally substantial noncombustible material and shall comply with all of the following: Lead directly to a source of clean ... | https://2023.antflix.net#502.128 |
Chaptewr 5 Special Occupancies | 502.128(A) | In Class II, Division 1 locations, ventilating pipes, including their connections to motors or to the dust-ignitionproof enclosures for other equipment, shall be dusttight throughout their length. For metal pipes, seams and joints shall comply with one of the following: Be riveted and solderedBe bolted and solderedBe w... | https://2023.antflix.net#502.128(A) |
Chaptewr 5 Special Occupancies | 502.128(B) | In Class II, Division 2 locations, ventilating pipes and their connections shall be sufficiently tight to prevent the entrance of appreciable quantities of dust into the ventilated equipment or enclosure and to prevent the escape of sparks, flame, or burning material that might ignite dust accumulations or combustible ... | https://2023.antflix.net#502.128(B) |
Chaptewr 5 Special Occupancies | 502.130(A) | In Class II, Division 1 locations, luminaires for fixed and portable lighting shall comply with 502.130(A)(1) through (A)(4). [502.130(A)](https://2023.antflix.net#502.130(A)) | https://2023.antflix.net#502.130(A) |
Chaptewr 5 Special Occupancies | 502.130(A)(1) | Each luminaire shall be identified for the location and shall be clearly marked to indicate the type and maximum wattage of the lamp for which it is designed. [502.130(A)(1)](https://2023.antflix.net#502.130(A)(1)) | https://2023.antflix.net#502.130(A)(1) |
Chaptewr 5 Special Occupancies | 502.130(A)(2) | Each luminaire shall be protected against physical damage by a suitable guard or by location. [502.130(A)(2)](https://2023.antflix.net#502.130(A)(2)) | https://2023.antflix.net#502.130(A)(2) |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.