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Chaptewr 5 Special Occupancies | 520.68(B) | The ampacity of conductors shall be as given in 400.5, except multiconductor, listed, extra-hard usage portable cords that are 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 the values in Table 520.44(C)(2)(1). Where the ampacity adjustment factors of Table 520.44(C)(2)(2) are applied for more than three current-carrying conductors in a portable cord, the load diversity shall be 50 percent or less. Exception: Where alternate conductors are allowed in 520.68(A)(5), their ampacity shall be as given in the appropriate table in this Code [or the types of conductors employed. [520.68(B)](https://2023.antflix.net#520.68(B)) | https://2023.antflix.net#520.68(B) |
Chaptewr 5 Special Occupancies | 520.68(C) | Overcurrent protection of conductors for portables shall comply with 240.5. [520.68(C)](https://2023.antflix.net#520.68(C)) | https://2023.antflix.net#520.68(C) |
Chaptewr 5 Special Occupancies | 520.68(D) | Special-purpose multicircuit cable systems shall comply with the following requirements: Branch circuits shall be rated at not more than 20 amperes and not more than 150 volts to ground.Trunk cable types shall be extra-hard usage (hard service) or hard usage (junior hard service).The ampacity of trunk cables shall be determined in accordance with Table 520.44(C)(2)(1).Trunk cables, breakout assemblies, and multicircuit enclosures shall be listed.Section 406.4(F) shall not apply to multicircuit, multipole plugs or receptacles that are part of a special-purpose multicircuit cable system.All multicircuit, multipole connectors shall be clearly marked with the voltage of the branch circuits serviced by the connector.Installation and operation shall be performed by qualified persons. [520.68(D)](https://2023.antflix.net#520.68(D)) | https://2023.antflix.net#520.68(D) |
Chaptewr 5 Special Occupancies | 520.69 | Adapters, two-fers, and other single- and multiple-circuit outlet devices shall comply with 520.69(A), (B), and (C). [520.69](https://2023.antflix.net#520.69) | https://2023.antflix.net#520.69 |
Chaptewr 5 Special Occupancies | 520.69(A) | Each receptacle and its corresponding cable shall have the same current and voltage rating as the plug supplying it. It shall not be utilized in a stage circuit with a greater current rating. [520.69(A)](https://2023.antflix.net#520.69(A)) | https://2023.antflix.net#520.69(A) |
Chaptewr 5 Special Occupancies | 520.69(B) | All connectors shall be wired in accordance with 520.67. [520.69(B)](https://2023.antflix.net#520.69(B)) | https://2023.antflix.net#520.69(B) |
Chaptewr 5 Special Occupancies | 520.69(C) | Conductors for adapters and two-fers shall be listed extra-hard usage or listed hard usage (junior hard service) cord. Hard usage (junior hard service) cord shall be restricted in overall length to 2.0 m (6.6 ft). [520.69(C)](https://2023.antflix.net#520.69(C)) | https://2023.antflix.net#520.69(C) |
Chaptewr 5 Special Occupancies | 520.71 | Pendant lampholders shall not be installed in dressing or makeup rooms. [520.71](https://2023.antflix.net#520.71) | https://2023.antflix.net#520.71 |
Chaptewr 5 Special Occupancies | 520.72 | All exposed lamps in dressing or makeup areas including rooms where they are less than 2.5 m (8 ft) from the floor shall be equipped with open-end guards riveted to the outlet box cover or otherwise sealed or locked in place. Recessed lamps shall not be required to be equipped with guards. [520.72](https://2023.antflix.net#520.72) | https://2023.antflix.net#520.72 |
Chaptewr 5 Special Occupancies | 520.73 | All luminaires, lampholders, and any receptacles adjacent to the mirror(s) and above the dressing or makeup counter(s) installed in dressing or makeup rooms shall be controlled by wall switches installed in the dressing or makeup room(s). Other outlets installed in the dressing or makeup rooms shall not be required to be switched. [520.73](https://2023.antflix.net#520.73) | https://2023.antflix.net#520.73 |
Chaptewr 5 Special Occupancies | 520.74 | Each switch required in 520.73 shall be provided with a pilot light located outside of and adjacent to the door of the room being controlled to indicate when the circuit is energized. Each pilot light shall be permanently identified indicating a description of the circuit controlled. Pilot lights shall be neon, LED, or other extended-life lamp. Pilot lights shall be recessed or provided with a mechanical guard. [520.74](https://2023.antflix.net#520.74) | https://2023.antflix.net#520.74 |
Chaptewr 5 Special Occupancies | 520.81 | All metal raceways and metal-sheathed cables shall be connected to an equipment grounding conductor. The metal frames and enclosures of all equipment, including border lights and portable luminaires, shall be connected to an equipment grounding conductor. [520.81](https://2023.antflix.net#520.81) | https://2023.antflix.net#520.81 |
Chaptewr 5 Special Occupancies | 522.1 | This article covers the installation of control circuit power sources and control circuit conductors for electrical equipment, including associated control wiring in or on all structures, that are an integral part of a permanent amusement attraction. [522.1](https://2023.antflix.net#522.1) | https://2023.antflix.net#522.1 |
Chaptewr 5 Special Occupancies | 522.5 | Control voltage shall be a maximum of 150 volts, nominal, ac to ground or 300 volts dc to ground. [522.5](https://2023.antflix.net#522.5) | https://2023.antflix.net#522.5 |
Chaptewr 5 Special Occupancies | 522.7 | The conditions of maintenance and supervision shall ensure that only qualified persons service the permanent amusement attraction. [522.7](https://2023.antflix.net#522.7) | https://2023.antflix.net#522.7 |
Chaptewr 5 Special Occupancies | 522.10(A) | Power-limited control circuits shall be supplied from a source that has a rated output of not more than 30 volts and 1000 volt-amperes. [522.10(A)](https://2023.antflix.net#522.10(A)) | https://2023.antflix.net#522.10(A) |
Chaptewr 5 Special Occupancies | 522.10(A)(1) | Transformers used to supply power-limited control circuits shall comply with the applicable sections within Parts I and II of Article 450. [522.10(A)(1)](https://2023.antflix.net#522.10(A)(1)) | https://2023.antflix.net#522.10(A)(1) |
Chaptewr 5 Special Occupancies | 522.10(A)(2) | Power-limited control power sources, other than transformers, shall be protected by overcurrent devices rated at not more than 167 percent of the volt-ampere rating of the source divided by the rated voltage. The fusible overcurrent devices shall not be interchangeable with fusible overcurrent devices of higher ratings. The overcurrent device shall be permitted to be an integral part of the power source. To comply with the 1000 volt-ampere limitation of 522.10(A), the maximum output of power sources, other than transformers, shall be limited to 2500 volt-amperes, and the product of the maximum current and maximum voltage shall not exceed 10,000 volt-amperes. These ratings shall be determined with any overcurrent-protective device bypassed. [522.10(A)(2)](https://2023.antflix.net#522.10(A)(2)) | https://2023.antflix.net#522.10(A)(2) |
Chaptewr 5 Special Occupancies | 522.10(B) | Non-power-limited control circuits shall not exceed 300 volts. The power output of the source shall not be required to be limited. [522.10(B)](https://2023.antflix.net#522.10(B)) | https://2023.antflix.net#522.10(B) |
Chaptewr 5 Special Occupancies | 522.10(B)(1) | Transformers used to supply non—power-limited control circuits shall comply with the applicable sections within Parts I and II of Article 450. [522.10(B)(1)](https://2023.antflix.net#522.10(B)(1)) | https://2023.antflix.net#522.10(B)(1) |
Chaptewr 5 Special Occupancies | 522.10(B)(2) | Non—power-limited control power sources, other than transformers, shall be protected by overcurrent devices rated at not more than 125 percent of the volt-ampere rating of the source divided by the rated voltage. The fusible overcurrent devices shall not be interchangeable with fusible overcurrent devices of higher ratings. The overcurrent device shall be permitted to be an integral part of the power source. [522.10(B)(2)](https://2023.antflix.net#522.10(B)(2)) | https://2023.antflix.net#522.10(B)(2) |
Chaptewr 5 Special Occupancies | 522.20 | Insulated control circuit conductors shall be copper and shall be permitted to be stranded or solid. Listed multiconductor cable assemblies shall be permitted. Exception No. 1: Busbars and slip rings shall be permitted to be materials other than copper. Exception No. 2: Conductors used as specific-purpose devices, such as thermocouples and resistive thermal devices, shall be permitted to be materials other than copper. [522.20](https://2023.antflix.net#522.20) | https://2023.antflix.net#522.20 |
Chaptewr 5 Special Occupancies | 522.21(A) | Conductors of size 30 AWG or larger shall be permitted within a listed component or as part of the wiring of a listed assembly. [522.21(A)](https://2023.antflix.net#522.21(A)) | https://2023.antflix.net#522.21(A) |
Chaptewr 5 Special Occupancies | 522.21(B) | Conductors of size 30 AWG or larger shall be permitted in a listed and jacketed multiconductor cable within an enclosure or operator station. Conductors in a non-jacketed multiconductor cable, such as ribbon cable, shall not be smaller than 26 AWG. Single conductors shall not be smaller than 24 AWG. Exception: Single conductors 30 AWG or larger shall be permitted for jumpers and special wiring applications. [522.21(B)](https://2023.antflix.net#522.21(B)) | https://2023.antflix.net#522.21(B) |
Chaptewr 5 Special Occupancies | 522.21(C) | The size of conductors in a listed and jacketed, multiconductor cable shall not be smaller than 26 AWG. Single conductors shall not be smaller than 18 AWG and shall be installed only where part of a recognized wiring method of Chapter 3. [522.21(C)](https://2023.antflix.net#522.21(C)) | https://2023.antflix.net#522.21(C) |
Chaptewr 5 Special Occupancies | 522.22 | Ampacities for conductors sized 16 AWG and smaller shall be as specified in Table 522.22. Table 522.22 Conductor Ampacity Based on Copper Conductors with 60°C and 75°C Insulation in an Ambient Temperature of 30°C Conductor Size(AWG) Ampacity 60°C 75°C 30 — 0.5 28 — 0.8 26 — 1 24 2 2 22 3 3 20 5 5 18 7 7 16 10 10 Notes:For ambient temperatures other than 30°C, temperature correction factors provided in 310.15(B)(1) shall be used.Ampacity for conductors with 90°C or greater insulation shall be based on ampacities in the 75°C column. [522.22](https://2023.antflix.net#522.22) | https://2023.antflix.net#522.22 |
Chaptewr 5 Special Occupancies | 522.23 | Conductors 30 AWG through 16 AWG shall have overcurrent protection in accordance with the appropriate conductor ampacity in Table 522.22. Conductors larger than 16 AWG shall have overcurrent protection in accordance with the appropriate conductor ampacity in Table 310.16. [522.23](https://2023.antflix.net#522.23) | https://2023.antflix.net#522.23 |
Chaptewr 5 Special Occupancies | 522.24 | Control circuits shall be permitted to be installed with other circuits as specified in 522.24(A) and (B). [522.24](https://2023.antflix.net#522.24) | https://2023.antflix.net#522.24 |
Chaptewr 5 Special Occupancies | 522.24(A) | Control circuits shall be permitted to occupy the same cable, cable tray, enclosure, or raceway without regard to whether the individual circuits are alternating current or direct current, provided all conductors are insulated for the maximum voltage of any conductor in the cable, cable tray, enclosure, or raceway. [522.24(A)](https://2023.antflix.net#522.24(A)) | https://2023.antflix.net#522.24(A) |
Chaptewr 5 Special Occupancies | 522.24(B) | Control circuits shall be permitted to be installed with power conductors as specified in 522.24(B)(1) through (B)(3). [522.24(B)](https://2023.antflix.net#522.24(B)) | https://2023.antflix.net#522.24(B) |
Chaptewr 5 Special Occupancies | 522.24(B)(1) | Control circuits and power circuits shall be permitted to occupy the same cable, enclosure, or raceway only where the equipment powered is functionally associated. [522.24(B)(1)](https://2023.antflix.net#522.24(B)(1)) | https://2023.antflix.net#522.24(B)(1) |
Chaptewr 5 Special Occupancies | 522.24(B)(2) | Control circuits and power circuits shall be permitted to be installed in factory- or field-assembled control centers. [522.24(B)(2)](https://2023.antflix.net#522.24(B)(2)) | https://2023.antflix.net#522.24(B)(2) |
Chaptewr 5 Special Occupancies | 522.24(B)(3) | Control circuits and power circuits shall be permitted to be installed as underground conductors in a manhole in accordance with one of the following: The power or control circuit conductors are in a metal-enclosed cable or Type UF cableThe conductors are permanently separated from the power conductors by a continuous fixed nonconductor, such as flexible tubing, in addition to the insulation on the wireThe conductors are permanently and effectively separated from the power conductors and securely fastened to racks, insulators, or other approved supportsIn cable trays, where the control circuit conductors and power conductors not functionally associated with them are separated by a solid fixed barrier of a material compatible with the cable tray, or where the power or control circuit conductors are in a metal-enclosed cable [522.24(B)(3)](https://2023.antflix.net#522.24(B)(3)) | https://2023.antflix.net#522.24(B)(3) |
Chaptewr 5 Special Occupancies | 522.25 | Separately derived ac circuits and systems 50 volts or greater and 2-wire dc circuits and systems 60 volts or greater shall be permitted to be ungrounded, provided that all the following conditions are met: Continuity of control power is required for orderly shutdown.Ground detectors are installed on the control system. [522.25](https://2023.antflix.net#522.25) | https://2023.antflix.net#522.25 |
Chaptewr 5 Special Occupancies | 522.28 | Where wet contact is likely to occur, ungrounded 2-wire direct-current control circuits shall be limited to 30 volts maximum for continuous dc or 12.4 volts peak for direct current that is interrupted at a rate of 10 to 200 Hz. [522.28](https://2023.antflix.net#522.28) | https://2023.antflix.net#522.28 |
Chaptewr 5 Special Occupancies | 525.1 | This article covers the installation of portable wiring and equipment for carnivals, circuses, fairs, and similar functions, including wiring in or on all structures. [525.1](https://2023.antflix.net#525.1) | https://2023.antflix.net#525.1 |
Chaptewr 5 Special Occupancies | 525.3(A) | Wherever the requirements of other articles of this Code and Article 525 differ, the requirements of Article 525 shall apply to the portable wiring and equipment. [525.3(A)](https://2023.antflix.net#525.3(A)) | https://2023.antflix.net#525.3(A) |
Chaptewr 5 Special Occupancies | 525.3(B) | This equipment shall be installed to comply with the applicable requirements of Parts I, II, III, and V of Article 680. [525.3(B)](https://2023.antflix.net#525.3(B)) | https://2023.antflix.net#525.3(B) |
Chaptewr 5 Special Occupancies | 525.5(A) | Conductors shall have a vertical clearance to ground in accordance with 225.18. These clearances shall apply only to wiring installed outside of tents and concessions. [525.5(A)](https://2023.antflix.net#525.5(A)) | https://2023.antflix.net#525.5(A) |
Chaptewr 5 Special Occupancies | 525.5(B)(1) | Portable structures shall be maintained not less than 4.5 m (15 ft) in any direction from overhead conductors operating at 600 volts or less, except for the conductors supplying the portable structure. Portable structures included in 525.3(B) shall comply with Table 680.9(A). [525.5(B)(1)](https://2023.antflix.net#525.5(B)(1)) | https://2023.antflix.net#525.5(B)(1) |
Chaptewr 5 Special Occupancies | 525.5(B)(2) | Portable structures shall not be located under or within a space that is located 4.5 m (15 ft) horizontally and extending vertically to grade of conductors operating in excess of 600 volts. [525.5(B)(2)](https://2023.antflix.net#525.5(B)(2)) | https://2023.antflix.net#525.5(B)(2) |
Chaptewr 5 Special Occupancies | 525.6 | Electrical equipment and wiring methods in or on portable structures shall be provided with mechanical protection where such equipment or wiring methods are subject to physical damage. [525.6](https://2023.antflix.net#525.6) | https://2023.antflix.net#525.6 |
Chaptewr 5 Special Occupancies | 525.10 | Services shall comply with 525.10(A) and (B). [525.10](https://2023.antflix.net#525.10) | https://2023.antflix.net#525.10 |
Chaptewr 5 Special Occupancies | 525.10(A) | Service equipment shall not be installed in a location that is accessible to unqualified persons, unless the equipment is lockable. [525.10(A)](https://2023.antflix.net#525.10(A)) | https://2023.antflix.net#525.10(A) |
Chaptewr 5 Special Occupancies | 525.10(B) | Service equipment shall be securely fastened to a solid backing and be installed so as to be protected from the weather, unless of weatherproof construction. [525.10(B)](https://2023.antflix.net#525.10(B)) | https://2023.antflix.net#525.10(B) |
Chaptewr 5 Special Occupancies | 525.11 | Where multiple services or separately derived systems, or both, supply portable structures, the equipment grounding conductors of all the sources of supply that serve such structures separated by less than 3.7 m (12 ft) shall be bonded together at the portable structures. The bonding conductor shall be copper and sized in accordance with Table 250.122 based on the largest overcurrent device supplying the portable structures, but not smaller than 6 AWG. [525.11](https://2023.antflix.net#525.11) | https://2023.antflix.net#525.11 |
Chaptewr 5 Special Occupancies | 525.20(A) | Where flexible cords or cables are used, they shall be listed for extra-hard usage. Where flexible cords or cables are used and are not subject to physical damage, they shall be permitted to be listed for hard usage. Where used outdoors, flexible cords and cables shall also be listed for wet locations and shall be sunlight resistant. Extra-hard usage flexible cords or cables shall be permitted for use as permanent wiring on portable amusement rides and attractions where not subject to physical damage. [525.20(A)](https://2023.antflix.net#525.20(A)) | https://2023.antflix.net#525.20(A) |
Chaptewr 5 Special Occupancies | 525.20(B) | Single-conductor cable shall be permitted only in sizes 2 AWG or larger. [525.20(B)](https://2023.antflix.net#525.20(B)) | https://2023.antflix.net#525.20(B) |
Chaptewr 5 Special Occupancies | 525.20(C) | Open conductors shall be prohibited except as part of a listed assembly or festoon lighting installed in accordance with Article 225. [525.20(C)](https://2023.antflix.net#525.20(C)) | https://2023.antflix.net#525.20(C) |
Chaptewr 5 Special Occupancies | 525.20(D) | Flexible cords or cables shall be continuous without splice or tap between boxes or fittings. [525.20(D)](https://2023.antflix.net#525.20(D)) | https://2023.antflix.net#525.20(D) |
Chaptewr 5 Special Occupancies | 525.20(E) | Cord connectors shall not be laid on the ground unless listed for wet locations. Connectors and cable connections shall not be placed in audience traffic paths or within areas accessible to the public unless guarded. [525.20(E)](https://2023.antflix.net#525.20(E)) | https://2023.antflix.net#525.20(E) |
Chaptewr 5 Special Occupancies | 525.20(F) | Wiring for an amusement ride, attraction, tent, or similar structure shall not be supported by any other ride or structure unless specifically designed for the purpose. [525.20(F)](https://2023.antflix.net#525.20(F)) | https://2023.antflix.net#525.20(F) |
Chaptewr 5 Special Occupancies | 525.20(G) | Flexible cords or cables accessible to the public shall be arranged to minimize the tripping hazard and shall be permitted to be covered with nonconductive matting secured to the walkway surface or protected with another approved cable protection method, provided that the matting or other protection method does not constitute a greater tripping hazard than the uncovered cables. Burying cables shall be permitted. The requirements of 300.5 shall not apply. [525.20(G)](https://2023.antflix.net#525.20(G)) | https://2023.antflix.net#525.20(G) |
Chaptewr 5 Special Occupancies | 525.20(H) | A box or fitting shall be installed at each connection point, outlet, switchpoint, or junction point. [525.20(H)](https://2023.antflix.net#525.20(H)) | https://2023.antflix.net#525.20(H) |
Chaptewr 5 Special Occupancies | 525.21(A) | A means to disconnect each portable structure from all ungrounded conductors shall be provided. The disconnecting means shall be located within sight of and within 1.8 m (6 ft) of the operator's station. The disconnecting means shall be readily accessible to the operator, including when the ride is in operation. If accessible to unqualified persons, the disconnecting means shall be lockable. A shunt trip device that opens the fused disconnect or circuit breaker if a switch located in the ride operator's console is closed shall be a permissible method of opening the circuit. [525.21(A)](https://2023.antflix.net#525.21(A)) | https://2023.antflix.net#525.21(A) |
Chaptewr 5 Special Occupancies | 525.21(B) | Electrical wiring for lighting, where installed inside of tents and concessions, shall be securely installed and, where subject to physical damage, shall be provided with mechanical protection. All lamps for general illumination shall be protected from accidental breakage by a luminaire or lampholder with a guard. [525.21(B)](https://2023.antflix.net#525.21(B)) | https://2023.antflix.net#525.21(B) |
Chaptewr 5 Special Occupancies | 525.22 | Portable distribution or termination boxes shall comply with 525.22(A) through (D). [525.22](https://2023.antflix.net#525.22) | https://2023.antflix.net#525.22 |
Chaptewr 5 Special Occupancies | 525.22(A) | Boxes shall be designed so that no live parts are exposed except where necessary for examination, adjustment, servicing, or maintenance by qualified persons. If installed outdoors, the box shall be of weatherproof construction and mounted so that the bottom of the enclosure is not less than 150 mm (6 in.) above the ground. [525.22(A)](https://2023.antflix.net#525.22(A)) | https://2023.antflix.net#525.22(A) |
Chaptewr 5 Special Occupancies | 525.22(B) | Busbars shall have an ampere rating not less than the overcurrent device supplying the feeder supplying the box. Where conductors terminate directly on busbars, busbar connectors shall be provided. [525.22(B)](https://2023.antflix.net#525.22(B)) | https://2023.antflix.net#525.22(B) |
Chaptewr 5 Special Occupancies | 525.22(C) | Receptacles shall have overcurrent protection installed within the box. The over-current protection shall not exceed the ampere rating of the receptacle, except as permitted in Article 430 for motor loads. [525.22(C)](https://2023.antflix.net#525.22(C)) | https://2023.antflix.net#525.22(C) |
Chaptewr 5 Special Occupancies | 525.22(D) | Where single-pole connectors are used, they shall comply with 530.10. [525.22(D)](https://2023.antflix.net#525.22(D)) | https://2023.antflix.net#525.22(D) |
Chaptewr 5 Special Occupancies | 525.23(A) | In addition to the requirements of 210.8(B), GFCI protection for personnel shall be provided for the following: All 125-volt, single-phase, 15- and 20-ampere non-locking-type receptacles used for disassembly and reassembly or readily accessible to the general publicEquipment that is readily accessible to the general public and supplied from a 125-volt, single-phase, 15- or 20-ampere branch circuitThe GFCI shall be permitted to be an integral part of the attachment plug or located in the power-supply cord within 300 mm (12 in.) of the attachment plug. Listed cord sets incorporating GFCI for personnel shall be permitted. [525.23(A)](https://2023.antflix.net#525.23(A)) | https://2023.antflix.net#525.23(A) |
Chaptewr 5 Special Occupancies | 525.23(B) | Receptacles that are not accessible from grade level and that only facilitate quick disconnecting and reconnecting of electrical equipment shall not be required to be provided with GFCI protection. These receptacles shall be of the locking type. [525.23(B)](https://2023.antflix.net#525.23(B)) | https://2023.antflix.net#525.23(B) |
Chaptewr 5 Special Occupancies | 525.23(C) | Egress lighting shall not be protected by a GFCI. [525.23(C)](https://2023.antflix.net#525.23(C)) | https://2023.antflix.net#525.23(C) |
Chaptewr 5 Special Occupancies | 525.23(D) | Where GFCI protection is provided through the use of GFCI receptacles, and the branch circuits supplying receptacles use flexible cord, the GFCI protection shall be listed, labeled, and identified for portable use. [525.23(D)](https://2023.antflix.net#525.23(D)) | https://2023.antflix.net#525.23(D) |
Chaptewr 5 Special Occupancies | 525.30 | The following equipment connected to the same source shall be bonded: Metal raceways and metal-sheathed cableMetal enclosures of electrical equipmentMetal frames and metal parts of portable structures, trailers, trucks, or other equipment that contain or support electrical equipmentWhere the metal frames or parts of the equipment in 525.30(1), (2), or (3) are likely to become energized in the event of a fault, the equipment grounding conductor of the supply circuit shall be permitted to serve as the bonding means. [525.30](https://2023.antflix.net#525.30) | https://2023.antflix.net#525.30 |
Chaptewr 5 Special Occupancies | 525.31 | The equipment grounding conductor shall be connected to the system grounded conductor at the service disconnecting means or, in the case of a separately derived system such as a generator, at the generator or first disconnecting means supplied by the generator. [525.31](https://2023.antflix.net#525.31) | https://2023.antflix.net#525.31 |
Chaptewr 5 Special Occupancies | 525.32 | The continuity of the equipment grounding conductors shall be verified each time that portable electrical equipment is connected. [525.32](https://2023.antflix.net#525.32) | https://2023.antflix.net#525.32 |
Chaptewr 5 Special Occupancies | 530.1 | The requirements of this article shall apply to motion picture and television studios in facilities and locations staffed by qualified persons, except as provided in 520.1. Such occupancies shall include those using either electronic or film cameras for image capture. Informational Note: See NFPA 40-2019, Standard for the Storage and Handling of Cellulose Nitrate Film, for methods of protecting against cellulose nitrate film hazards. [530.1](https://2023.antflix.net#530.1) | https://2023.antflix.net#530.1 |
Chaptewr 5 Special Occupancies | 530.3(A) | The electrical equipment covered in this article shall be used in motion picture or television studios with restricted public access. [530.3(A)](https://2023.antflix.net#530.3(A)) | https://2023.antflix.net#530.3(A) |
Chaptewr 5 Special Occupancies | 530.3(B) | Where the equipment is deployed on remote locations, restricted public access shall be provided in the form of physical barriers or other access control measures. [530.3(B)](https://2023.antflix.net#530.3(B)) | https://2023.antflix.net#530.3(B) |
Chaptewr 5 Special Occupancies | 530.4 | Portable electrical equipment, including distribution systems, generators, battery systems, and other power sources, shall be deployed, energized, and, while energized, operated and continuously supervised by trained, qualified, and employer-authorized personnel. [530.4](https://2023.antflix.net#530.4) | https://2023.antflix.net#530.4 |
Chaptewr 5 Special Occupancies | 530.5 | Wiring methods for permanent installations shall be in accordance with 530.5(A) or (B). [530.5](https://2023.antflix.net#530.5) | https://2023.antflix.net#530.5 |
Chaptewr 5 Special Occupancies | 530.5(A) | The permanent wiring shall be permitted to be any of the following: Metal racewaysNonmetallic raceways encased in not less than 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 [530.5(A)](https://2023.antflix.net#530.5(A)) | https://2023.antflix.net#530.5(A) |
Chaptewr 5 Special Occupancies | 530.5(B) | Permanent wiring methods for communications, signaling, data, fire alarm systems, and systems operating at less than 120 volts, nominal, shall be in accordance with the following: Audio signal processing, amplification, and reproduction equipment - 640.9Communications systems - Parts I and IV of Article 800; Part IV of Article 805: and Part IV of Article 840Class 2 and Class 3 remote control and signaling circuits - Part III of Article 725Class 2 circuits that transmit power, data or both to a powered deviceInformational Note: See ANSI/NEMA C137.3-2017, American National Standard for Lighting Systems - Minimum Requirements for Installation of Energy Efficient Power over Ethernet (PoE) Lighting Systems, for information on installation of cables for PoE lighting systems. See Part III of Article 760 for information on fire alarm circuits. [530.5(B)](https://2023.antflix.net#530.5(B)) | https://2023.antflix.net#530.5(B) |
Chaptewr 5 Special Occupancies | 530.7 | Applying the demand factors listed in Table 530.7 to the portion of the maximum possible connected load for studio or stage set lighting for all permanently installed feeders between substations and stages and to all permanently installed feeders between the main stage switchboard and stage distribution centers shall be permitted. Table 530.7 Demand Factors for Stage Set Lighting Portion of Stage Set Lighting Load to Which Demand Factor Applied (volt-amperes) Feeder Demand Factor (percent) First 50,000 or less at 100 From 50,001 to 100,000 at 75 From 100,001 to 200,000 at 60 Remaining over 200,000 at 50 [530.7](https://2023.antflix.net#530.7) | https://2023.antflix.net#530.7 |
Chaptewr 5 Special Occupancies | 530.8 | Permanent wiring systems shall include an equipment grounding conductor of a type in accordance with 250.118 installed with the supply conductors and connected to the building or structure disconnecting means and the grounding electrode(s). The grounding electrode(s) shall also be connected to the building or structure disconnecting means. Equipment grounding conductors shall be sized in accordance with 250.122. This shall not apply to pendant and portable stage lighting, stage sound equipment, or other special stage equipment operating at not over 150 volts dc to ground. [530.8](https://2023.antflix.net#530.8) | https://2023.antflix.net#530.8 |
Chaptewr 5 Special Occupancies | 530.9 | Plugs and receptacles shall be in accordance with 530.9(A), (B) and (C). [530.9](https://2023.antflix.net#530.9) | https://2023.antflix.net#530.9 |
Chaptewr 5 Special Occupancies | 530.9(A) | Plugs and receptacles, including cord connectors and flanged surface devices, shall be rated in amperes. The voltage rating of the plugs and receptacles shall not be less than the nominal circuit voltage. Plug and receptacle ampere ratings for ac circuits shall not be less than the feeder or branch-circuit overcurrent device ampere rating. Table 210.21(B)(2) shall not apply. [530.9(A)](https://2023.antflix.net#530.9(A)) | https://2023.antflix.net#530.9(A) |
Chaptewr 5 Special Occupancies | 530.9(B) | Plugs and receptacles shall be constructed so that differently rated devices cannot be connected together. Alternating-current multipole connectors shall be polarized and comply with the requirements of 406.7 and 406.10. Exception: 125-volt, 20-ampere, nonlocking (T-slot) receptacles shall be permitted to accept a 15-ampere attachment plug of the same voltage rating. [530.9(B)](https://2023.antflix.net#530.9(B)) | https://2023.antflix.net#530.9(B) |
Chaptewr 5 Special Occupancies | 530.9(C) | Plugs and receptacles used in portable professional motion picture and television equipment shall be permitted to be interchangeable for ac or dc use if they are on the same premises, listed for ac and dc use, and clearly marked to identify the system to which they are connected. [530.9(C)](https://2023.antflix.net#530.9(C)) | https://2023.antflix.net#530.9(C) |
Chaptewr 5 Special Occupancies | 530.10(A) | Single-pole separable connectors shall comply with the requirements of 406.13. Sections 400.14, 406.7, and 406.8 shall not apply to listed single-pole separable connectors. [530.10(A)](https://2023.antflix.net#530.10(A)) | https://2023.antflix.net#530.10(A) |
Chaptewr 5 Special Occupancies | 530.10(B) | Where paralleled sets of current-carrying single-pole separable connectors are provided as input devices, they shall be prominently labeled with a warning indicating the presence of internal parallel connections. All paralleled input devices other than primary input devices shall be guarded against accidental contact. [530.10(B)](https://2023.antflix.net#530.10(B)) | https://2023.antflix.net#530.10(B) |
Chaptewr 5 Special Occupancies | 530.10(C) | Where portable equipment contains a feed-through outlet of the same rating as its supply inlet, the feed-through outlet shall not require overcurrent protection in the equipment. [530.10(C)](https://2023.antflix.net#530.10(C)) | https://2023.antflix.net#530.10(C) |
Chaptewr 5 Special Occupancies | 530.11 | A branch circuit of any size supplying one or more receptacles shall be permitted to supply stage set lighting loads. The GFCI requirements of 210.8(B), excluding 210.8(B)(6), shall apply. Branch circuits supplying egress lighting, life-critical stunts, life-critical special effects, or any other condition where a nonorderly shutdown might introduce additional or increased hazards shall not be protected by GFCIs. [530.11](https://2023.antflix.net#530.11) | https://2023.antflix.net#530.11 |
Chaptewr 5 Special Occupancies | 530.12(A) | Parts of electrical equipment that are live or are likely to become energized shall be enclosed, guarded, or located so persons cannot accidentally come in contact with them or bring conductive material into contact with them. [530.12(A)](https://2023.antflix.net#530.12(A)) | https://2023.antflix.net#530.12(A) |
Chaptewr 5 Special Occupancies | 530.12(B) | All switches shall be of the externally operable type. [530.12(B)](https://2023.antflix.net#530.12(B)) | https://2023.antflix.net#530.12(B) |
Chaptewr 5 Special Occupancies | 530.21(A) | Portable stage and studio electrical equipment shall be listed or approved. Field-assembled extension cords and multiconductor cable assemblies consisting of listed connectors and cable shall be permitted in production areas. [530.21(A)](https://2023.antflix.net#530.21(A)) | https://2023.antflix.net#530.21(A) |
Chaptewr 5 Special Occupancies | 530.21(B) | Portable stage and studio equipment and portable power distribution equipment not identified for outdoor use shall be permitted for temporary use if the equipment is supervised by qualified personnel while energized and barriered from the general public. Informational Note No. 1: See ANSI/ESTA E1.58, Electrical Safety Standard for Portable Stage and Studio Equipment Used Outdoors, for requirements covering temporary outdoor use of equipment not identified for outdoor use. Informational Note No. 2: See ANSI/ESTA E1.19-2015, Recommended Practice for the use of Class A Ground-Fault Circuit Interrupters (GFCIs) intended for personnel protection in the Entertainment Industry, for guidance on the use of GFCIs in wet locations. [530.21(B)](https://2023.antflix.net#530.21(B)) | https://2023.antflix.net#530.21(B) |
Chaptewr 5 Special Occupancies | 530.22(A) | The wiring for stage set lighting and other supply wiring not fixed in place shall use listed hard usage flexible cords and cables. Where subject to physical damage, such wiring shall use listed extra-hard usage flexible cords and cables. Splices and taps in cables shall be permitted if the total connected load does not exceed the maximum ampacity of the cable. [530.22(A)](https://2023.antflix.net#530.22(A)) | https://2023.antflix.net#530.22(A) |
Chaptewr 5 Special Occupancies | 530.22(B) | The wiring for stage effects and electrical equipment used as stage properties shall be permitted to be wired with single- or multi-conductor listed flexible cords or cables if the conductors are protected from physical damage and secured to the scenery by approved cable ties or insulated staples. Splices or taps shall be permitted where such are made with listed devices and the circuit is protected at not more than 20 amperes. [530.22(B)](https://2023.antflix.net#530.22(B)) | https://2023.antflix.net#530.22(B) |
Chaptewr 5 Special Occupancies | 530.22(C) | Cords and cables other than extra-hard usage, where supplied as a part of a listed assembly, shall be permitted. [530.22(C)](https://2023.antflix.net#530.22(C)) | https://2023.antflix.net#530.22(C) |
Chaptewr 5 Special Occupancies | 530.22(D) | Portable feeder cables shall be permitted to temporarily penetrate fire-rated walls, floors, or ceilings where all of the following apply: The opening is of noncombustible material.When in use, the penetration is sealed with a temporary seal of a listed firestop material.When not in use, the opening shall be capped with a material of equivalent fire rating. [530.22(D)](https://2023.antflix.net#530.22(D)) | https://2023.antflix.net#530.22(D) |
Chaptewr 5 Special Occupancies | 530.22(E) | Cables shall be protected by bushings where they pass through enclosures and shall be arranged so that tension on the cable is not transmitted to the connections. Where power conductors pass through metal, the requirements of 300.20 shall apply. [530.22(E)](https://2023.antflix.net#530.22(E)) | https://2023.antflix.net#530.22(E) |
Chaptewr 5 Special Occupancies | 530.22(F) | Special-purpose multicircuit cable systems shall comply with 520.68(D). [530.22(F)](https://2023.antflix.net#530.22(F)) | https://2023.antflix.net#530.22(F) |
Chaptewr 5 Special Occupancies | 530.23 | Overcurrent protective devices in production areas shall comply with 530.23(A) through (D). [530.23](https://2023.antflix.net#530.23) | https://2023.antflix.net#530.23 |
Chaptewr 5 Special Occupancies | 530.23(A) | Overcurrent protection for portable stage cables shall comply with the requirements of 240.5. [530.23(A)](https://2023.antflix.net#530.23(A)) | https://2023.antflix.net#530.23(A) |
Chaptewr 5 Special Occupancies | 530.23(B) | Portable feeder cables in production areas shall be protected by means of overcurrent devices set at not more than 400 percent of the ampacity of the cable listed in Table 400.5(A)(2). The maximum load on a single conductor portable feeder cable shall not exceed the cable ampacity in Table 400.5(A)(2). [530.23(B)](https://2023.antflix.net#530.23(B)) | https://2023.antflix.net#530.23(B) |
Chaptewr 5 Special Occupancies | 530.23(C) | Cables and cords supplied through plugging boxes shall include only copper conductors. Cables and cords smaller than 8 AWG shall be attached to a plugging box by means of a plug containing two cartridge fuses or a 2-pole circuit breaker. Plugging boxes shall not be permitted on ac systems. Receptacles in dc plugging boxes shall be rated at not less than 30 amperes. [530.23(C)](https://2023.antflix.net#530.23(C)) | https://2023.antflix.net#530.23(C) |
Chaptewr 5 Special Occupancies | 530.23(D) | Alternating-current power distribution boxes used in production areas shall contain receptacles of a polarized, grounding type. A feed-through outlet of the same rating as its supply inlet shall not require overcurrent protection in the equipment. Alternating-current power distribution boxes shall be listed. Informational Note: See ANSI/UL 1640-2016, Standard for Portable Power-Distribution Equipment, for information on alternating-current power distribution boxes. [530.23(D)](https://2023.antflix.net#530.23(D)) | https://2023.antflix.net#530.23(D) |
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