Part IV is titled Luminaire Supports. These luminaries are commonly worked on without the removal of power, thus creating a shock hazard to the person performing the work. One word of caution with IC rated cans: make sure the proper size lamp and the matching trim is used, as these are tested using specific lamp and trim combinations to insure they do not overheat. Tap conductors can run to a box at least 300 mm (1 ft.) from the fixture. The track conductors shall be a minimum 12 AWG or equal and shall be copper. 410.160 Listing of Decorative Lighting. This article continues to grow as new lighting technology is developed. However, Ive had inspectors try to apply the requirements for closets in 410 to other locations. with a cover suitable for use in wet locations to provide access to the supply terminations within the pole or pole base.Exception No. (C) Luminaire (Fixture) Types Not Permitted. Locations Not Permitted. nec article 410 contains requirements for installing. The free lead at the end of a group of showcases has a female fitting not extending beyond the case. (A) Wet and Damp Locations. Luminaires installed on dc circuits shall be equipped with auxiliary equipment and resistors designed for dc operation. This includes cables, conductors, wiring devices, and others. Luminaires installed in wet or damp locations shall be installed such that water cannot enter or accumulate in wiring compartments, lampholders, or other electrical parts. IAEI News Magazine. Pendant luminaires (fixtures) or lampholders and incandescent luminaires (fixtures) whose lamps are not totally enclosed. Lampholders of the screw shell type shall be of porcelain or other suitable insulating materials. Often we find shelves that hold cardboard boxes or garments that are easily ignited if in contact with a heat source. Lamp tie wires, mount ing screws, clips, and decorative bands on glass spaced at least 38 mm (112in.) Properly Secured. Incandescent luminaires with open or partially enclosed lamps and pendant luminaires or lampholders shall not be permitted. Wiring of cranes and hoists. He has been a master electrician since 1988. There are a couple of exceptions, so please review these. 2: No handhole shall be required in a pole 6.0 m (20 ft) or less in height abovegrade that is provided with a hinged base. Part III. Equipment that has an open- circuit voltage exceeding 1000 volts shall not be installed in or on dwelling occupancies. Luminaires shall be constructed such that adjacent combustible material is not subject to tempera tures in excess of 90C (194F). Stranding. Outdoor luminaires and associated equipment shall be permitted to be supported by trees. Therefore, these fixtures now require a disconnecting means. Stranded conductors shall be used for wiring on luminaire chains and on other movable or flexible parts. Luminaires shall be wired with conductors having insulation suitable for the environmental conditions, current, voltage, and temperature to which the conductors will be subjected. Luminaires shall be permitted to be connected to busways in accordance with 368.17(C). Electric-discharge luminaires provided with mogul-base, screw shell lampholders shall be permitted to be connected tobranch circuits of 50 amperes or less by cords complying with240.5. There are issues related to combustibles due to the heat that is generated by traditional lighting methods. Multiwire Branch Circuits. Replacement ballasts shall also have thermal protection integral with the ballast. General II. (c)Listed luminaires connected using listed assemblies. The line side terminals of the disconnecting means shall be guarded.Exception No. Exposed Components. Support. for a fluorescent luminaire (fixture). (12.7mm) from combustible materials. One note Id like to add regarding these inspections. Diffusers shall be resistant to thermal shock. For double end lamp luminaires, this disconnect shall be located so as to be accessible to the person before servicing the ballast, so generally these are being installed inside the luminaire. For some reason, these are not commonly purchased with an IC rating. Luminaire studs that are not a part of outlet boxes, hickeys, tripods, and crowfeet shall be made of steel, malleable iron, or other material suitable for the applica tion. Flexible cord shall be of the hard- service type, having conductors not smaller than the branch- circuit conductors, having ampacity at least equal to the branch-circuit overcurrent device, and having an equipment grounding conductor.Informational Note: See Table 250.122 for size of equipment grounding conductor. Open-Circuit Voltage Exceeding 300 Volts. Usually we found that the shelf depth in the tract homes we inspected was more than 12 inches, so we had to check the clearance of these closet fixtures during a final inspection. These are very commonly used in residential construction and are a very important part of the residential inspection process. Construction of Flush and Recessed Luminaires (Fixtures), XIII. Now we know the locations that we are allowed to install the luminaire related to the defined storage area. for an incandescent luminaire (fixture) and 150 mm (6 in.) (D) Location. of a ballast, LED driver, power supply, or transformer shall have an insulation temperature rating not lower than 90C (194F), unless supplying a luminaire marked as suitable for a different insulation temperature. 410.64 Luminaires as Raceways. One category that is a fairly new concern is indoor sports, mixed use and all-purpose facilities that may utilize mercury vapor or metal halide lamps. Installed in Poured Concrete. III. Five exceptions exist in the 2011 Code, so please review. 410.59 Cord-Connected Showcases. Also, locations such as those that are corrosive or within ducts or hoods each have limitations you will want to review within 410.10 if inspecting these areas. No Other Equipment. GET YOUR CEUS TODAY, 1998-2021. Coves shall have adequate space and shall be located so that lamps and equipment can be properly installed and maintained. Use Table 402.5 for 18-16 AWG conductors. 410.50 Polarization of Luminaires. Lampholders installed over highly combustible material shall be of the unswitched type. NEC Article 410 contains requirements for installing recessed lighting fixtures causing them to emit electrons? Adjacent to Combustible Materials. Solder Prohibited. Luminaires installed in wet or damp locations shall be installed such that water cannot enter or accumulate in wiring compartments, lampholders, or other electrical parts. Equip ment having an open-circuit voltage exceeding 300 volts shall not be installed in dwelling occupancies unless such equipment is designed so that there will be no exposed live parts when lamps are being inserted, are in place, or are being removed. Instant start lamps Which of the following is an HID ballast category? Luminaires in Indoor Sports, Mixed-Use, and All-Purpose Facilities. Along with making sure they have used lamps that are not larger than the luminaire allows per its listing and labeling, these little foil-covered insulation pieces are part of the fixture and are there to ensure we dont have heat transfer from the lamp to the wire terminations. As a matter of fact, it is harder to find luminaires in these sizes that are not IC rated. Secondary Connections. A simple reactance ballast in a fluorescent luminaire with straight tubular lamps shall not be required to be thermally protected. D8 Motor Circuit Conductors, Overload Protection, and Short-Circuit and Ground-Fault Protection, Example No. This may create inspection issues, as Ive seen these cord- and plug-connected and hung in various ways that I didnt consider permanent. General. Provisions at Luminaire (Fixture) Outlet Boxes, Canopies, and Pans, Temperature Limit of Conductors in Outlet Boxes, Covering of Combustible Material at Outlet Boxes, Connection of Electric-Discharge Luminaires (Lighting Fixtures). Inherently Protected. Since the closet doors are generally closed, if the fixture is left on and overheats items in the closet, the resulting fire could go unnoticed for quite some time. Remember that the canopy will be included in the volume requirement, so the box and the canopy together provide the space. Thermal insulation shall not be installed above a recessed luminaire or within 75 mm (3 in.) There is an exception for replacement luminaires (fixtures) and a second one. As we mentioned earlier, we have a definition for closet storage space. I have seen the insulation pieces laying around numerous times and the way our jurisdiction stopped the practice is that we made them buy new fixtures. Several codes regulate the use of artificial lighting. 410.10 Luminaires in Specific Locations (A) Wet and Damp Locations Luminaires installed in wet or damp locations shall be installed such that water cannot enter or accumulate in wiring compartments, lampholders, or other electrical parts. Surface-mounted luminaires (fixtures) can be installed on the wall above the door or on the ceiling. Luminaires, portable luminaires, lamphold ers, and lamps shall have no live parts normally exposed to contact. Listed. However, in locations such as small alcoves or similar areas where 4 inch cans are installed, we may find problems. The issue here is that these luminaires have the possibility of generating a lot of heat, and the lamp is designed to be installed inside a metallic housing, which is then installed at the top of a room in the ceiling. The idea with this code requirement is that we dont want a heat source, the luminaire, to be in contact with anything that may be stored there. Such luminaires shall be permitted to have an additional guard. The Grounding and Bonding and the NEC Section 250 Specific Grounding Problems, Installations And the National Electrical Code Requirements Testing Procedures For Industrial, Commercial And Institutional Electric Power Grounding Systems Practical Solutions To Grounding Problems After Attending, You Will Work More Safely And Efficiently According to the NEC 410.16(A), the following is defined as acceptable for installation in clothing closets: Surface or recessed incandescent or LED luminaires with an enclosed light source. from the sides and back of the closet walls, respectively, and continuing vertically to the closet ceiling parallel to the walls at a horizontal distance of 300 mm (12 in.) Decorative Lighting and Similar Accessories, Annex C. Conduit and Tubing Fill Tables for Conductors and Fixture Wires of the Same Size, Pocket Guide to the National Electrical Code(R), 2005 Edition (8th Edition), Article 410 Luminaires (Lighting Fixtures), Lampholders, and Lamps, Article 110 Requirements for Electrical Installations, Article 200 Use and Identification of Grounded Conductors, Article 220 Branch-Circuit, Feeder, and Service Calculations, Article 225 Outside Branch Circuits and Feeders, Article 285 Transient Voltage Surge Suppressors (TVSSs), Article 310 Conductors for General Wiring, Article 312 Cabinets, Cutout Boxes, and Meter Socket Enclosures, Article 314 Outlet, Device, Pull, and Junction Boxes; Conduit Bodies; Fittings; and Handhole Enclosures, Article 322 Flat Cable Assemblies Type FC, Article 324 Flat Conductor Cable Type FCC, Article 326 Integrated Gas Spacer Cable Type IGS, Article 332 Mineral-Insulated, Metal-Sheathed Cable Type MI, Article 334 Nonmetallic-Sheathed Cable Types NM, NMC, and NMS, Article 336 Power and Control Tray Cable Type TC, Article 338 Service-Entrance Cable Types SE and USE, Article 340 Underground Feeder and Branch-Circuit Cable Type UF, Article 342 Intermediate Metal Conduit Type IMC, Article 348 Flexible Metal Conduit Type FMC, Article 350 Liquidtight Flexible Metal Conduit Type LFMC, Article 352 Rigid Nonmetallic Conduit Type RNC, Article 353 High Density Polyethylene Conduit Type HDPE Conduit, Article 354 Nonmetallic Underground Conduit with Conductors Type NUCC, Article 356 Liquidtight Flexible Nonmetallic Conduit Type LFNC, Article 358 Electrical Metallic Tubing Type EMT, Article 360 Flexible Metallic Tubing Type FMT, Article 362 Electrical Nonmetallic Tubing Type ENT, Article 374 Cellular Metal Floor Raceways, Article 394 Concealed Knob-and-Tube Wiring, Article 406: Receptacles, Cord Connectors, and Attachment Plugs (Caps), Article 408: Switchboards and Panelboards, Article 410: Luminaires (Lighting Fixtures), Lampholders, and Lamps, Article 411: Lighting Systems Operating at 30 Volts or Less, Article 424: Fixed Electric Space Heating Equipment, Article 426: Fixed Outdoor Electric De-Icing and Snow-Melting Equipment, Article 427: Fixed Electric Heating Equipment for Pipelines and Vessels, Article 430: Motors, Motor Circuits, and Controllers, Article 440: Air Conditioning and Refrigerating Equipment, Article 500 Hazardous (Classified) Locations, Classes I, II, and III, Divisions 1 and 2, Article 645 Information Technology Equipment, Article 701 Legally Required Standby Systems, Annex C. Conduit and Tubing Fill Tables for Conductors and Fixture Wires of the Same Size, Example No. Transformers shall be accessible after installa tion. of the recessed luminaires enclosure, wiring compartment, ballast, transformer, LED driver, or power supply unless the luminaire is identified as Type IC for insulation contact. A means to connect an equipment ground must be provided for a metal luminaire (fixture). I will not cover each of these here, please review them on your own so that you will be aware of what is in this part of the code. Fittings identified for use on lighting track shall be designed specifically for the track on which they are to be installed. What about single pin lamps? Lighting track must be permanently installed, permanently connected to the branch circuit, and use only track lighting fittings. Chapter 4 of the National Electrical Code (NEC), Equipment for General Use, contains 22 articles. A ballast in a fluorescent luminaire that is used for egress lighting and energized only during a fail ure of the normal supply shall not have thermal protection. Part XII. IAEIs Online Training allows you to learn at your own pace or live with an expert instructor, from the comfort of your laptop or PC. 4 in.) Lighting track shall be securely mounted so that each fastening is suitable for supporting the maximum weight of luminaires that can be installed. This often leads to problems, such as when we have special luminaires used inside casinos, hotels and other large facilities where the units are actually a piece of artwork with lights attached. 410.70 Combustible Shades and Enclosures. Receptacles and attachment plugs shall be permitted to be of a lower ampere rating than the branch circuit but not less than 125 percent of the luminaire full-load current. Exposed accessible terminals in lampholders and switches shall not be installed in metal luminaire canopies or in open bases of portable table or floor luminaires.Exception: Cleat-type lampholders located at least 2.5 m (8 ft) above the. Heavy-duty lighting track is lighting track identified for use exceeding 20 amperes. The load and the branch-circuit rating cannot exceed the rating of the track. The 2020 NEC in Article 410 contains a new Part XVI entitled Special Provisions for Horticultural Lighting Equipment. A luminaire that weighs more than 3 kg (6 lb) or exceeds 400 mm (16 in.) Generally, the first 4 foot section will have two supports and then an additional support for each 4 foot section added. Separately mounted ballasts, trans formers, LED drivers, or power supplies that are listed for direct connection to a wiring system shall not be required to be additionally enclosed. If you are tasked with doing inspections for parking lot lighting, you need to be familiar with a few items. Exposed metal parts shall be connected to an equipment grounding conductor or insulated from the equipment grounding conductor and other conducting surfaces or be inaccessible to unqualified personnel. Individual showcases, other than fixed, shall be permitted to be connected by flexible cord to permanently installed receptacles, and groups of not more than six such showcases shall be permitted to be coupled together by flexible cord and separable locking-type connec tors with one of the group connected by flexible cord to a permanently installed receptacle. Flexible cords shall be secured to the under sides of showcases such that all of the following conditions are ensured: The wiring is not exposed to physical damage. 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Space and shall be located so that each fastening is suitable for use exceeding 20 amperes branch-circuit can... Protection integral with the ballast for replacement luminaires ( fixtures ), equipment General... Horticultural lighting equipment wiring on luminaire chains and on other movable or parts... The free lead at the end of a group of showcases has a fitting. The line side terminals of the unswitched type clips, and use only track lighting fittings an equipment must... Of porcelain or other suitable insulating materials and equipment can be properly installed and maintained the end a... We find shelves that hold cardboard boxes or garments that are easily ignited if in contact with a cover for! Lampholders installed over highly combustible material shall be constructed such that adjacent combustible material is not subject to tempera in. Provide access to the branch circuit, and lamps shall not be required be... Other locations be provided for a metal luminaire ( fixture ) Types not permitted shall also have thermal integral!
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