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Chaptewr 5 Special Occupancies | 518.2(A) | Assembly occupancies shall include, but not be limited to, the following: ArmoriesAssembly hallsAuditoriumsBowling lanesCasinos and gaming facilitiesClub roomsConference roomsCourtroomsDance hallsDining and drinking facilitiesExhibition hallsGymnasiumsMortuary chapelsMultipurpose roomsMuseumsPlaces of awaiting transpor... | https://2023.antflix.net#518.2(A) |
Chaptewr 5 Special Occupancies | 518.2(B) | Where an assembly occupancy forms a portion of a building containing other occupancies, Article 518 applies only to that portion of the building considered an assembly occupancy. Occupancy of any room or space for assembly purposes by less than 100 persons in a building of other occupancy, and incidental to such other ... | https://2023.antflix.net#518.2(B) |
Chaptewr 5 Special Occupancies | 518.2(C) | Where any such building or structure, or portion of a building or structure, contains a projection booth or stage platform or area for the presentation of theatrical or musical productions, either fixed or portable, the wiring for that area, including associated audience seating areas, and all equipment that is used in... | https://2023.antflix.net#518.2(C) |
Chaptewr 5 Special Occupancies | 518.3 | In exhibition halls used for display booths, as in trade shows, the temporary wiring shall be permitted to be installed in accordance with Article 590. Flexible cables and cords approved for hard or extra-hard usage shall be permitted to be laid on floors where protected from contact by the general public. The ground-f... | https://2023.antflix.net#518.3 |
Chaptewr 5 Special Occupancies | 518.4(A) | The wiring method shall qualify as an equipment grounding conductor in accordance with 250.118 or shall contain an equipment grounding conductor sized in accordance with Table 250.122, and shall be any of the following: Metal racewaysFlexible metal racewaysNonmetallic raceways encased in not less than 50 mm (2 in.) of ... | https://2023.antflix.net#518.4(A) |
Chaptewr 5 Special Occupancies | 518.4(B) | Fixed wiring methods for specific installations shall be as follows:Audio signal processing, amplification, and reproduction equipment - 640.9Communications systems - Part IV of Article 805 and Part VI of Article 840Class 2 and Class 3 remote control and signaling circuits - Article 725, Part IIIClass 2 circuits that t... | https://2023.antflix.net#518.4(B) |
Chaptewr 5 Special Occupancies | 518.4(C) | In addition to the wiring methods permitted by 518.4(A), nonmetallic-sheathed cable, electrical nonmetallic tubing, and rigid nonmetallic conduit shall be permitted to be installed in those buildings or portions of those buildings that are not required to be of fire-rated construction by the applicable building code. I... | https://2023.antflix.net#518.4(C) |
Chaptewr 5 Special Occupancies | 518.4(D) | Electrical nonmetallic tubing and rigid nonmetallic conduit shall be permitted to be installed in club rooms, conference and meeting rooms in hotels or motels, courtrooms, dining facilities, restaurants, mortuary chapels, museums, libraries, and places of religious worship where the following apply: The tubing or condu... | https://2023.antflix.net#518.4(D) |
Chaptewr 5 Special Occupancies | 518.5 | Portable switchboards, portable power distribution equipment, and commercial appliance outlet centers shall be installed in accordance with 518.5(A) through (C). [518.5](https://2023.antflix.net#518.5) | https://2023.antflix.net#518.5 |
Chaptewr 5 Special Occupancies | 518.5(A)(1) | Power outlets and commercial appliance outlet centers shall provide overcurrent protection or shall be protected by overcurrent devices. [518.5(A)(1)](https://2023.antflix.net#518.5(A)(1)) | https://2023.antflix.net#518.5(A)(1) |
Chaptewr 5 Special Occupancies | 518.5(A)(2) | Overcurrent devices, power outlets, and commercial appliance outlet centers shall not be accessible to the general public. [518.5(A)(2)](https://2023.antflix.net#518.5(A)(2)) | https://2023.antflix.net#518.5(A)(2) |
Chaptewr 5 Special Occupancies | 518.5(A)(3) | Connecting means for an equipment grounding conductor shall be provided. [518.5(A)(3)](https://2023.antflix.net#518.5(A)(3)) | https://2023.antflix.net#518.5(A)(3) |
Chaptewr 5 Special Occupancies | 518.5(A)(4) | Power outlets and commercial appliance outlet centers shall be marked as follows: FOR USE BY QUALIFIED PERSONS ONLY. RISK OF ELECTRIC SHOCK.Disconnect all power before servicing. Disconnecting means location: [518.5(A)(4)](https://2023.antflix.net#518.5(A)(4)) | https://2023.antflix.net#518.5(A)(4) |
Chaptewr 5 Special Occupancies | 518.5(A)(5) | A panelboard installed in a listed commercial appliance outlet center designed for in-floor mounting shall be permitted to be orientated in the face-up position, if such orientation is part of the listing, and 408.43 shall not apply. [518.5(A)(5)](https://2023.antflix.net#518.5(A)(5)) | https://2023.antflix.net#518.5(A)(5) |
Chaptewr 5 Special Occupancies | 518.5(B) | Portable switchboards and portable power distribution equipment shall be supplied only from listed power outlets or listed commercial appliance outlet centers, each having sufficient voltage and ampere ratings. [518.5(B)](https://2023.antflix.net#518.5(B)) | https://2023.antflix.net#518.5(B) |
Chaptewr 5 Special Occupancies | 518.5(C) | The neutral conductor of feeders supplying solid-state phase control, 3-phase, 4-wire dimmer systems shall be considered a current-carrying conductor for purposes of ampacity adjustment. The neutral conductor of feeders supplying solid-state sine wave, 3-phase, 4-wire dimming systems shall not be considered a current-c... | https://2023.antflix.net#518.5(C) |
Chaptewr 5 Special Occupancies | 518.6 | Illumination shall be provided for all working spaces about fixed service equipment, switchboards, switchgear, panelboards, or motor control centers installed outdoors that serve assembly occupancies. Control by automatic means only shall not be permitted. Additional lighting outlets shall not be required where the wor... | https://2023.antflix.net#518.6 |
Chaptewr 5 Special Occupancies | 520.1 | This article covers all buildings or that part of a building or structure, indoor or outdoor, designed or used for presentation, dramatic, musical, motion picture projection, or similar purposes and to specific audience seating areas within motion picture or television studios. [520.1](https://2023.antflix.net#520.1) | https://2023.antflix.net#520.1 |
Chaptewr 5 Special Occupancies | 520.5(A) | The fixed wiring method shall be any of the following: Metal racewaysNonmetallic raceways encased in at least 50 mm (2 in.) of concreteType MI cable, Type MC cable, or Type AC cable containing an insulated equipment grounding conductor sized in accordance with Table 250.122 [520.5(A)](https://2023.antflix.net#520.5(A)) | https://2023.antflix.net#520.5(A) |
Chaptewr 5 Special Occupancies | 520.5(B) | Fixed wiring methods for specific installations shall be as follows: Audio signal processing, amplification, and reproduction equipment - 640.9Communications systems - Parts I and IV of Article 800, Part IV of Article 805, and Part VI of Article 840Class 2 and Class 3 remote control and signaling circuits - Part III of... | https://2023.antflix.net#520.5(B) |
Chaptewr 5 Special Occupancies | 520.5(C) | The wiring for portable switchboards, stage set lighting, stage effects, and other wiring not fixed as to location shall be permitted with approved flexible cords and cables as provided elsewhere in Article 520. Fastening such cables and cords by uninsulated staples or nailing shall not be permitted. [520.5(C)](https:/... | https://2023.antflix.net#520.5(C) |
Chaptewr 5 Special Occupancies | 520.5(D) | Nonmetallic-sheathed cable, Type AC cable, electrical nonmetallic tubing, and rigid nonmetallic conduit shall be permitted to be installed in those buildings or portions of buildings that are not required to be of fire-rated construction by the applicable building code. [520.5(D)](https://2023.antflix.net#520.5(D)) | https://2023.antflix.net#520.5(D) |
Chaptewr 5 Special Occupancies | 520.6 | The number of conductors permitted in any metal conduit, rigid nonmetallic conduit as permitted in this article, or electrical metallic tubing for circuits or for remote-control conductors shall not exceed the percentage fill shown in Table 1 of Chapter 9. Where contained within an auxiliary gutter or a wireway, the su... | https://2023.antflix.net#520.6 |
Chaptewr 5 Special Occupancies | 520.9 | A branch circuit of any size supplying one or more receptacles shall be permitted to supply stage set lighting. The voltage rating of the receptacles shall be not less than the circuit voltage. Receptacle ampere ratings and branch-circuit conductor ampacity shall be not less than the branch-circuit overcurrent device a... | https://2023.antflix.net#520.9 |
Chaptewr 5 Special Occupancies | 520.10 | Portable stage and studio lighting equipment and portable power distribution equipment not identified for outdoor use shall be permitted for temporary use outdoors if the equipment is supervised by qualified personnel while energized and barriered from the general public. Informational Note: See ANSI/ESTA E1.58-2017, E... | https://2023.antflix.net#520.10 |
Chaptewr 5 Special Occupancies | 520.21 | Fixed stage switchboards shall comply with the following: Fixed stage switchboards shall be listed.Fixed stage switchboards shall be readily accessible but shall not be required to be located on or adjacent to the stage. Multiple fixed stage switchboards shall be permitted at different locations.A fixed stage switchboa... | https://2023.antflix.net#520.21 |
Chaptewr 5 Special Occupancies | 520.25 | Dimmers shall comply with 520.25(A) through (C). [520.25](https://2023.antflix.net#520.25) | https://2023.antflix.net#520.25 |
Chaptewr 5 Special Occupancies | 520.25(A) | If dimmers are installed in ungrounded conductors, each dimmer shall have overcurrent protection not greater than 125 percent of the dimmer rating and shall be disconnected from all ungrounded conductors where the master or individual switch or circuit breaker supplying such dimmer is in the open position. [520.25(A)](... | https://2023.antflix.net#520.25(A) |
Chaptewr 5 Special Occupancies | 520.25(B) | The circuit supplying an autotransformer-type dimmer shall not exceed 150 volts between conductors. The grounded conductor shall be common to the input and output circuits. Informational Note: See 210.9 for circuits derived from auto-transformers. [520.25(B)](https://2023.antflix.net#520.25(B)) | https://2023.antflix.net#520.25(B) |
Chaptewr 5 Special Occupancies | 520.25(C) | The circuit supplying a solid-state dimmer shall not exceed 150 volts between conductors unless the dimmer is listed specifically for higher voltage operation. Where a grounded conductor supplies a dimmer, it shall be common to the input and output circuits. Dimmer chassis shall be connected to the equipment grounding ... | https://2023.antflix.net#520.25(C) |
Chaptewr 5 Special Occupancies | 520.26 | A stage switchboard shall be either one or a combination of the types specified in 520.26(A), (B), (C), and (D). [520.26](https://2023.antflix.net#520.26) | https://2023.antflix.net#520.26 |
Chaptewr 5 Special Occupancies | 520.26(A) | Dimmers and switches are operated by handles mechanically linked to the control devices. [520.26(A)](https://2023.antflix.net#520.26(A)) | https://2023.antflix.net#520.26(A) |
Chaptewr 5 Special Occupancies | 520.26(B) | Devices are operated electrically from a pilot-type control console or panel. Pilot control panels either shall be part of the switchboard or shall be permitted to be at another location. [520.26(B)](https://2023.antflix.net#520.26(B)) | https://2023.antflix.net#520.26(B) |
Chaptewr 5 Special Occupancies | 520.26(C) | A stage switchboard with circuit interconnections is a secondary switchboard (patch panel) or panelboard remote to the primary stage switchboard. It shall contain overcurrent protection. Where the required branch-circuit overcurrent protection is provided in the dimmer panel, it shall be permitted to be omitted from th... | https://2023.antflix.net#520.26(C) |
Chaptewr 5 Special Occupancies | 520.26(D) | A stage switchboard containing only over-current protective devices and no control elements. [520.26(D)](https://2023.antflix.net#520.26(D)) | https://2023.antflix.net#520.26(D) |
Chaptewr 5 Special Occupancies | 520.27(A) | Feeders supplying stage switchboards shall be one of the types in 520.27 (A)(1) through (A)(3). [520.27(A)](https://2023.antflix.net#520.27(A)) | https://2023.antflix.net#520.27(A) |
Chaptewr 5 Special Occupancies | 520.27(A)(1) | A single feeder disconnected by a single disconnect device. [520.27(A)(1)](https://2023.antflix.net#520.27(A)(1)) | https://2023.antflix.net#520.27(A)(1) |
Chaptewr 5 Special Occupancies | 520.27(A)(2) | Multiple feeders of unlimited quantity shall be permitted, provided that all multiple feeders are part of a single system. Where combined, neutral conductors in a given raceway shall be of sufficient ampacity to carry the maximum unbalanced current supplied by multiple feeder conductors in the same raceway, but they ne... | https://2023.antflix.net#520.27(A)(2) |
Chaptewr 5 Special Occupancies | 520.27(A)(3) | Installations with separate feeders to a single primary stage switchboard shall have a disconnecting means for each feeder. The primary stage switchboard shall have a permanent and obvious label stating the number and location of disconnecting means. If the disconnecting means are located in more than one distribution ... | https://2023.antflix.net#520.27(A)(3) |
Chaptewr 5 Special Occupancies | 520.27(B) | the purpose of ampacity adjustment, the following shall apply: The neutral conductor of feeders supplying solid-state, phase-control 3-phase, 4-wire dimming systems shall be considered a current-carrying conductor.The neutral conductor of feeders supplying solid-state, sine wave 3-phase, 4-wire dimming systems shall no... | https://2023.antflix.net#520.27(B) |
Chaptewr 5 Special Occupancies | 520.27(C) | For the purposes of calculating supply capacity to switchboards, considering the maximum load that the switchboard is intended to control in a given installation shall be permitted if the following apply: All feeders supplying the switchboard shall be protected by an overcurrent device with a rating not greater than th... | https://2023.antflix.net#520.27(C) |
Chaptewr 5 Special Occupancies | 520.40 | Where a stage lighting hoist is listed as a complete assembly and contains an integral cable-handling system and cable to connect a moving wiring device to a fixed junction box for connection to permanent wiring, the extra-hard usage requirement of 520.44(C)(1) shall not apply. [520.40](https://2023.antflix.net#520.40) | https://2023.antflix.net#520.40 |
Chaptewr 5 Special Occupancies | 520.41(A) | Footlights, border lights, and proscenium sidelights shall be arranged so that no branch circuit supplying such equipment carries a load exceeding 20 amperes. [520.41(A)](https://2023.antflix.net#520.41(A)) | https://2023.antflix.net#520.41(A) |
Chaptewr 5 Special Occupancies | 520.41(B) | Where only heavy-duty lampholders are used, such circuits shall be permitted to comply with Article 210 for circuits supplying heavy-duty lampholders. [520.41(B)](https://2023.antflix.net#520.41(B)) | https://2023.antflix.net#520.41(B) |
Chaptewr 5 Special Occupancies | 520.42 | Foot, border, proscenium, or portable strip lights and connector strips shall be wired with conductors that have insulation suitable for the temperature at which the conductors are operated, but not less than 125°C (257°F). The ampacity of the 125°C (257°F) conductors shall be that of 60°C (140°F) conductors. All drops... | https://2023.antflix.net#520.42 |
Chaptewr 5 Special Occupancies | 520.43(A) | Where metal trough construction is employed for footlights, the trough containing the circuit conductors shall be made of sheet metal not lighter than 0.81 mm (0.032 in.) and treated to prevent oxidation. Lampholder terminals shall be kept at least 13 mm (1/2 in.) from the metal of the trough. The circuit conductors sh... | https://2023.antflix.net#520.43(A) |
Chaptewr 5 Special Occupancies | 520.43(B) | Where the metal trough construction specified in 520.43(A) is not used, footlights shall consist of individual outlets with lampholders wired with rigid metal conduit, intermediate metal conduit, or flexible metal conduit, Type MC cable, or mineral-insulated, metal-sheathed cable. The circuit conductors shall be solder... | https://2023.antflix.net#520.43(B) |
Chaptewr 5 Special Occupancies | 520.43(C) | Disappearing footlights shall be arranged so that the current supply is automatically disconnected when the footlights are replaced in the storage recesses designed for them. [520.43(C)](https://2023.antflix.net#520.43(C)) | https://2023.antflix.net#520.43(C) |
Chaptewr 5 Special Occupancies | 520.44(A) | Borders and proscenium sidelights shall be as follows: Constructed as specified in 520.43Suitably stayed and supportedDesigned so that the flanges of the reflectors or other guards protect the lamps from mechanical damage and from accidental contact with scenery or other combustible material [520.44(A)](https://2023.an... | https://2023.antflix.net#520.44(A) |
Chaptewr 5 Special Occupancies | 520.44(B) | Connector strips and drop boxes shall be as follows: Suitably stayed and supportedListed as stage and studio wiring devices [520.44(B)](https://2023.antflix.net#520.44(B)) | https://2023.antflix.net#520.44(B) |
Chaptewr 5 Special Occupancies | 520.44(C)(1) | Cords and cables for supply to border lights, drop boxes, and connector strips shall be listed for extra-hard usage. The cords and cables shall be suitably supported. Such cords and cables shall be employed only where flexible conductors are necessary. Ampacity of the conductors shall be as provided in 400.5. [520.44(C... | https://2023.antflix.net#520.44(C)(1) |
Chaptewr 5 Special Occupancies | 520.44(C)(2) | Listed multiconductor extra-hard usage type cords and cables not in direct contact with equipment containing heat-producing elements shall be permitted to have their ampacity determined by Table 520.44(C)(2)(1). Maximum load current in any conductor with an ampacity determined by Table 520.44(C)(2)(1) shall not exceed ... | https://2023.antflix.net#520.44(C)(2) |
Chaptewr 5 Special Occupancies | 520.44(C)(3) | Neutral conductors shall be white without stripe or shall be identified by a distinctive white marking at their terminations. Equipment grounding conductors shall be green with or without yellow stripe or shall be identified by a distinctive green marking at their terminations. [520.44(C)(3)](https://2023.antflix.net#5... | https://2023.antflix.net#520.44(C)(3) |
Chaptewr 5 Special Occupancies | 520.45 | Receptacles for electrical equipment on stages shall be rated in amperes. Conductors supplying receptacles shall be in accordance with Articles 310 and 400. [520.45](https://2023.antflix.net#520.45) | https://2023.antflix.net#520.45 |
Chaptewr 5 Special Occupancies | 520.46 | Receptacles for the connection of portable stage-lighting equipment shall be pendant or mounted in pockets or enclosures and shall comply with 520.45. Supply cables for connector strips and drop boxes shall be as specified in 520.44(C). [520.46](https://2023.antflix.net#520.46) | https://2023.antflix.net#520.46 |
Chaptewr 5 Special Occupancies | 520.47 | Lamps (bare bulbs) installed in backstage and ancillary areas where they can come in contact with scenery shall be located and guarded so as to be free from physical damage and shall provide an air space of not less than 50 mm (2 in.) between such lamps and any combustible material. Exception: Decorative lamps installe... | https://2023.antflix.net#520.47 |
Chaptewr 5 Special Occupancies | 520.48 | Curtain machines shall be listed. [520.48](https://2023.antflix.net#520.48) | https://2023.antflix.net#520.48 |
Chaptewr 5 Special Occupancies | 520.49 | Where stage smoke ventilators are released by an electrical device, the circuit operating the device shall be normally closed and shall be controlled by at least two externally operable switches, one switch being placed at a readily accessible location on stage and the other where designated by the authority having jur... | https://2023.antflix.net#520.49 |
Chaptewr 5 Special Occupancies | 520.50 | A panel designed to allow for road show connection of portable stage switchboards to fixed lighting outlets by means of permanently installed supplementary circuits. The panel, supplementary circuits, and outlets shall comply with 520.50(A) through (D). [520.50](https://2023.antflix.net#520.50) | https://2023.antflix.net#520.50 |
Chaptewr 5 Special Occupancies | 520.50(A) | Circuits shall originate from grounding-type polarized inlets of current and voltage rating that match the fixed-load receptacle. [520.50(A)](https://2023.antflix.net#520.50(A)) | https://2023.antflix.net#520.50(A) |
Chaptewr 5 Special Occupancies | 520.50(B) | Circuits that are transferred between fixed and portable switchboards shall have all circuit conductors transferred simultaneously. [520.50(B)](https://2023.antflix.net#520.50(B)) | https://2023.antflix.net#520.50(B) |
Chaptewr 5 Special Occupancies | 520.50(C) | The supply devices of these supplementary circuits shall be protected by branch-circuit overcurrent protective devices. Each supplementary circuit, within the road show connection panel and theater, shall be protected by branch-circuit overcurrent protective devices installed within the road show connection panel. [520... | https://2023.antflix.net#520.50(C) |
Chaptewr 5 Special Occupancies | 520.50(D) | Panel construction shall be in accordance with Article 408. [520.50(D)](https://2023.antflix.net#520.50(D)) | https://2023.antflix.net#520.50(D) |
Chaptewr 5 Special Occupancies | 520.51 | Portable switchboards shall be supplied only from power outlets of sufficient voltage and ampere rating. Such power outlets shall include only externally operable, enclosed fused switches or circuit breakers mounted on stage or at the permanent switchboard in locations readily accessible from the stage floor. Provision... | https://2023.antflix.net#520.51 |
Chaptewr 5 Special Occupancies | 520.52 | Portable switchboards shall contain overcurrent protection for branch circuits. The requirements of 210.23 shall not apply. [520.52](https://2023.antflix.net#520.52) | https://2023.antflix.net#520.52 |
Chaptewr 5 Special Occupancies | 520.53 | Portable stage switchboards shall be listed and shall comply with 520.53(A) through (E). The load terminal location requirements in 408.18(C)(1), (C)(2), and (C)(3) shall not apply to portable stage switchboards. [520.53](https://2023.antflix.net#520.53) | https://2023.antflix.net#520.53 |
Chaptewr 5 Special Occupancies | 520.53(A) | A pilot light shall be provided for each ungrounded conductor feeding the switchboard. The pilot light(s) shall be connected to the incoming feeder so that operation of the main overcurrent protective device or master switch shall not affect the operation of the pilot light(s). [520.53(A)](https://2023.antflix.net#520.... | https://2023.antflix.net#520.53(A) |
Chaptewr 5 Special Occupancies | 520.53(B) | In portable switchboard equipment designed for use with 3-phase, 4-wire with ground supply, the current rating of the supply neutral terminal, and the ampacity of its associated busbar or wiring, or both, shall have an ampacity equal to at least twice the ampacity of the largest ungrounded supply terminal. Exception: W... | https://2023.antflix.net#520.53(B) |
Chaptewr 5 Special Occupancies | 520.53(C) | Single-pole separable connectors shall comply with 406.13. Sections 400.14, 406.7, and 406.8 shall not apply to listed single-pole separable connectors and single-conductor cable assemblies utilizing listed single-pole separable connectors. Where paralleled sets of current-carrying, single-pole separable connectors are... | https://2023.antflix.net#520.53(C) |
Chaptewr 5 Special Occupancies | 520.53(D) | Where a portable stage switchboard contains a feed-through outlet of the same rating as its supply inlet, the feed-through outlet shall not require overcurrent protection in the switchboard. [520.53(D)](https://2023.antflix.net#520.53(D)) | https://2023.antflix.net#520.53(D) |
Chaptewr 5 Special Occupancies | 520.53(E) | All conductors other than busbars within the switchboard enclosure shall be stranded. [520.53(E)](https://2023.antflix.net#520.53(E)) | https://2023.antflix.net#520.53(E) |
Chaptewr 5 Special Occupancies | 520.54(A) | The supply to a portable stage switchboard shall be by means of listed extra-hard usage cords or cables. The supply cords or cables shall terminate within the switchboard enclosure in an externally operable fused master switch or circuit breaker or in an identified connector assembly. The supply cords or cable (and con... | https://2023.antflix.net#520.54(A) |
Chaptewr 5 Special Occupancies | 520.54(B) | The power supply conductors for portable stage switchboards utilizing solid-state phase control dimmers shall be sized considering the neutral conductor as a current-carrying conductor for ampacity adjustment purposes. The power supply conductors for portable stage switchboards utilizing only solid-state sine wave dimm... | https://2023.antflix.net#520.54(B) |
Chaptewr 5 Special Occupancies | 520.54(C) | Single-conductor portable supply cable sets shall be not smaller than 2 AWG conductors. The equipment grounding conductor shall not be smaller than 6 AWG conductor. Single-conductor grounded neutral cables for a supply shall be sized in accordance with 520.54(J). Where single conductors are paralleled for increased amp... | https://2023.antflix.net#520.54(C) |
Chaptewr 5 Special Occupancies | 520.54(D) | Where supply conductors do not exceed 3 m (10 ft) in length between supply and switchboard or supply and a subsequent overcurrent device, the supply conductors shall be permitted to be reduced in size where all of the following conditions are met: The ampacity of the supply conductors shall be at least one-quarter of t... | https://2023.antflix.net#520.54(D) |
Chaptewr 5 Special Occupancies | 520.54(E) | Where supply conductors do not exceed 6 m (20 ft) in length between supply and switchboard or supply and a subsequent overcurrent protection device, the supply conductors shall be permitted to be reduced in size where all of the following conditions are met: The ampacity of the supply conductors shall be at least one-h... | https://2023.antflix.net#520.54(E) |
Chaptewr 5 Special Occupancies | 520.54(F) | Supply conductors not reduced in size under 520.54(D) or (E) shall be permitted to pass through holes in walls specifically designed for the purpose. If penetration is through the fire-resistant—rated wall, it shall be in accordance with 300.21. [520.54(F)](https://2023.antflix.net#520.54(F)) | https://2023.antflix.net#520.54(F) |
Chaptewr 5 Special Occupancies | 520.54(G) | All supply conductors and connectors shall be protected against physical damage by an approved means. This protection shall not be required to be raceways. [520.54(G)](https://2023.antflix.net#520.54(G)) | https://2023.antflix.net#520.54(G) |
Chaptewr 5 Special Occupancies | 520.54(H) | Where connectors are used in a supply conductor, there shall be a maximum number of three interconnections (mated connector pairs) where the total length from supply to switchboard does not exceed 30 m (100 ft). In cases where the total length from supply to switchboard exceeds 30 m (100 ft), one additional interconnec... | https://2023.antflix.net#520.54(H) |
Chaptewr 5 Special Occupancies | 520.54(I) | Where single-pole portable cable connectors are used, they shall be listed and of the locking type. Sections 406.7 and 406.8 shall not apply to listed single-pole separable connectors and single-conductor cable assemblies utilizing listed single-pole separable connectors. [520.54(I)](https://2023.antflix.net#520.54(I)) | https://2023.antflix.net#520.54(I) |
Chaptewr 5 Special Occupancies | 520.54(J) | Supply neutral conductors shall comply with 520.54(J)(1) and (J)(2). [520.54(J)](https://2023.antflix.net#520.54(J)) | https://2023.antflix.net#520.54(J) |
Chaptewr 5 Special Occupancies | 520.54(J)(1) | Grounded neutral conductors shall be permitted to be identified by marking at least the first 150 mm (6 in.) from both ends of each length of conductor with white or gray. [520.54(J)(1)](https://2023.antflix.net#520.54(J)(1)) | https://2023.antflix.net#520.54(J)(1) |
Chaptewr 5 Special Occupancies | 520.54(J)(2) | Where single-conductor feeder cables not installed in raceways are used on multiphase circuits feeding portable stage switchboards containing solid-state phase-control dimmers, the grounded neutral conductor shall have an ampacity of at least 130 percent of the ungrounded circuit conductors feeding the portable stage s... | https://2023.antflix.net#520.54(J)(2) |
Chaptewr 5 Special Occupancies | 520.54(K) | The routing of portable supply conductors, the making and breaking of supply connectors and other supply connections, and the energization and de-energization of supply services shall be performed by qualified persons, and portable switchboards shall be so marked, indicating this requirement in a permanent and conspicu... | https://2023.antflix.net#520.54(K) |
Chaptewr 5 Special Occupancies | 520.61 | Arc lamps, including enclosed arc lamps and associated ballasts, shall be listed. Interconnecting cord sets and interconnecting cords and cables shall be extra-hard usage type and listed. [520.61](https://2023.antflix.net#520.61) | https://2023.antflix.net#520.61 |
Chaptewr 5 Special Occupancies | 520.62 | Portable power distribution units shall comply with the requirements of 520.62(A) and (B). [520.62](https://2023.antflix.net#520.62) | https://2023.antflix.net#520.62 |
Chaptewr 5 Special Occupancies | 520.62(A) | Portable power distribution units shall be listed. [520.62(A)](https://2023.antflix.net#520.62(A)) | https://2023.antflix.net#520.62(A) |
Chaptewr 5 Special Occupancies | 520.62(B) | Portable power distribution equipment fed by single-conductor feeder systems shall comply with the requirements of 520.53(C) and (D) and 520.54. [520.62(B)](https://2023.antflix.net#520.62(B)) | https://2023.antflix.net#520.62(B) |
Chaptewr 5 Special Occupancies | 520.63(A) | Brackets for use on scenery shall be wired internally, and the fixture stem shall be carried through to the back of the scenery where a bushing shall be placed on the end of the stem. Externally wired brackets or other fixtures shall be permitted where wired with cords designed for hard usage that extend through scener... | https://2023.antflix.net#520.63(A) |
Chaptewr 5 Special Occupancies | 520.63(B) | Fixtures shall be securely fastened in place. [520.63(B)](https://2023.antflix.net#520.63(B)) | https://2023.antflix.net#520.63(B) |
Chaptewr 5 Special Occupancies | 520.64 | Portable strips shall be constructed in accordance with the requirements for border lights and proscenium sidelights in 520.44(A). The supply cable shall be protected by bushings where it passes through metal and shall be arranged so that tension on the cable will not be transmitted to the connections. Informational No... | https://2023.antflix.net#520.64 |
Chaptewr 5 Special Occupancies | 520.65 | Joints in festoon wiring shall be staggered. Where such lampholders have terminals of a type that puncture the insulation and make contact with the conductors, they shall be attached only to conductors of the stranded type. Lamps enclosed in lanterns or similar devices of combustible material shall be equipped with gua... | https://2023.antflix.net#520.65 |
Chaptewr 5 Special Occupancies | 520.66 | Electrical devices used for simulating lightning, waterfalls, and the like shall be constructed and located so that flames, sparks, or hot particles cannot come in contact with combustible material. [520.66](https://2023.antflix.net#520.66) | https://2023.antflix.net#520.66 |
Chaptewr 5 Special Occupancies | 520.67 | Multipole branch-circuit cable connectors, male and female, for flexible conductors shall be constructed so that tension on the cord or cable is not transmitted to the connections. The female half shall be attached to the load end of the power supply cord or cable. The connector shall be rated in amperes and designed s... | https://2023.antflix.net#520.67 |
Chaptewr 5 Special Occupancies | 520.68(A)(1) | Flexible conductors, including cable extensions, used to supply portable stage equipment shall be listed extra-hard usage cords or cables. [520.68(A)(1)](https://2023.antflix.net#520.68(A)(1)) | https://2023.antflix.net#520.68(A)(1) |
Chaptewr 5 Special Occupancies | 520.68(A)(2) | Listed, hard usage (junior hard service) cord or cable shall be permitted where all of the following conditions are met: The cord or cable is protected from physical damage by attachment over its entire length to a pipe, tower, truss, scaffold, or other substantial support structure, or installed in a location that inh... | https://2023.antflix.net#520.68(A)(2) |
Chaptewr 5 Special Occupancies | 520.68(A)(3) | Listed, hard usage cord shall be permitted to supply stand lamps where the cord is not subject to physical damage and is protected by an overcurrent device rated at not over 20 amperes. [520.68(A)(3)](https://2023.antflix.net#520.68(A)(3)) | https://2023.antflix.net#520.68(A)(3) |
Chaptewr 5 Special Occupancies | 520.68(A)(4) | Listed hard usage supply cords shall be permitted to supply luminaires if all of the following conditions are met: The supply cord is not longer than 2.0 m (6.6 ft).The supply cord is attached at one end to the luminaire or a luminaire-specific listed connector that mates with a panel-mounted inlet on the body of the l... | https://2023.antflix.net#520.68(A)(4) |
Chaptewr 5 Special Occupancies | 520.68(A)(5) | A special assembly of conductors in sleeving not longer than 1.0 m (3.3 ft) shall be permitted to be employed in lieu of flexible cord if the individual wires are stranded and rated not less than 125°C (257°F) and the outer sleeve is glass fiber with a wall thickness of at least 0.635 mm (0.025 in.). Portable stage equ... | https://2023.antflix.net#520.68(A)(5) |
Chaptewr 5 Special Occupancies | 520.68(A)(6) | Listed, hard usage (junior hard service) cords shall be permitted in breakout assemblies where all of the following conditions are met: The cords are utilized to connect between a single multi-pole connector containing two or more branch circuits and multiple 2-pole, 3-wire connectors.The longest cord in the breakout a... | https://2023.antflix.net#520.68(A)(6) |
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