Luminaires listed and marked for use as a raceway shall be permitted to be used as a raceway. Temperature. In a completed installa tion, each outlet box shall be provided with a cover unless covered by means of a luminaire canopy, lampholder, recepta cle, or similar device. The free lead at the end of a group of showcases has a female fitting not extending beyond the case. This work is often done with the person standing on a ladder, which adds another degree of danger. Snap switches shall comply with 404.14. Where supplied by the ungrounded conductors of a circuit, the switching device of lampholders of the switched type shall simultaneously disconnect both conductors of the circuit. from combustible material and at least 75 mm (3 in.) Transformers shall be accessible after installa tion. The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. However, in locations such as small alcoves or similar areas where 4 inch cans are installed, we may find problems. No unnecessary splices or taps shall be made within or on a luminaire.Informational Note: For approved means of making connec tions, see 110.14. Special Provisions for Flush and Recessed Luminaires. Exception No. So on a non-IC type we must have a 1/2 inch space from any recessed parts to combustibles, excluding the support or finish trims. So at first, the contractor had to field install these devices, but eventually manufacturers started to ship units with the disconnects installed. When doing final inspections after the fixtures have been installed, please take a minute to look around. If they were installed in a ceiling, we had the installer frame a box out around the fixtures to maintain the required 3 inch clearance from insulation. New articles and requirements for never before covered systems and equipment such as Class 4 fault-managed circuits, hazardous locations within commercial and industrial cannabis production facilities, equipotential bonding in and around areas with splash pads, insulated bus pipe/tubular covered conductors systems, and more Closet Storage Space. A luminaire shall be permitted to be connected witha cord terminating in a grounding-type attachment plug orbusway plug. The term luminaires is recommended by the International Electrotechnical Commission. Adequate airspace shall be provided between lamps and shades or other enclosures of combustible material. These changes can be found in Article 690, Solar Photovoltaic (PV) Systems. Luminaires or lamp installation shall be controlled either singly or in groups by an externally operable switch or circuit breaker that opens all ungrounded primary conductors. As we mentioned earlier, we have a definition for closet storage space. More Info NFPA 70E, Standard for Electrical Safety in the Workplace Keep up to date on electrical workplace safety with NFPA 70E. All rights reserved. All of the electrical equipment and enclosures must be specifically approved for the location [682.10]. Wiring on or within luminaires shall be neatly arranged and shall not be exposed to physical damage. Lumin aires with exposed metal parts shall be provided with a means for connecting an equipment grounding conductor for such luminaires. Wet and Damp Locations. Open-Circuit Voltage Exceeding 300 Volts. (E) Luminaires (Fixtures) in Indoor Sports, Mixed-Use, and All-Purpose Facilities. Provisions at Luminaire Outlet Boxes, Canopies, and Pans. Pendant conductors longer than 900 mm (3 ft) shall be twisted together where not cabled in a listed assembly. 410.90 Screw Shell Type. If you are tasked with doing inspections for parking lot lighting, you need to be familiar with a few items. Luminaires and equipment shall be mechanically connected to an equipment grounding conductor as specified in 250.118 and sized in accordance with 250.122. Where supplied by a circuit having a grounded conductor, the grounded conductor shall be connected to the screw shell. If you see a cord plugged into a device on a trackthat is a violation. All luminaires shall be marked with the maxi mum lamp wattage or electrical rating, manufacturers name, trademark, or other suitable means of identification. Raceway Fittings. If we miss this, then there may be an issue that can lead to a fire. The vertical location of the kitchen countertop receptacles is addressed in 210.52 (C) (5); they are not permitted more than 20 inches above the countertop. Construction of Flush and Recessed Luminaires (Fixtures), XIII. 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. The track system ends shall be insulated and capped. Luminaires subject to physical damage, using a mercury vapor or metal halide lamp, installed in playing and spectator seating areas of indoor sports, mixed-use, or all- purpose facilities shall be of the type that protects the lamp with a glass or plastic lens. Luminaires installed on dc circuits shall be equipped with auxiliary equipment and resistors designed for dc operation. Chapter 4 of the National Electrical Code (NEC), Equipment for General Use, contains 22 articles. Such luminaires shall be permitted to have an additional guard. Incandescent luminaires with open or partially enclosed lamps and pendant luminaires or lampholders shall not be permitted. The luminaire shall be constructed so that all exhaust vapors, grease, oil, or cooking vapors are excluded from the lamp and wiring compartment. Special Provisions for Electric-Discharge Lighting Systems of 1000 Volts or Less. C. Construction Specifications 330.104 Conductors 400.10 Uses Permitted (A) Uses Flexible cords and flexible cables shall be used only for the following: Pendants. Size. However, Ive had inspectors try to apply the requirements for closets in 410 to other locations. (D) Bathtub and Shower Areas. Choose topics from a full list of courses covering electrical topics that cover what you need to know from the NEC and other electrical codes and standards. Bases, Incandescent Lamps. Luminaires shall be of such construction or installed so that the conductors in outlet boxes shall not be subjected to temperatures greater than that for which the conductors are rated.Branch-circuit wiring, other than 2-wire or multiwire branch circuits supplying power to luminaires connected together, shall not be passed through an outlet box that is an integral part of a luminaire unless the luminaire is identified for through-wiring.Informational Note: See 410.64(C) for wiring supplying power to luminaires connected together. Metal Cabinets. D8 Motor Circuit Conductors, Overload Protection, and Short-Circuit and Ground-Fault Protection, Example No. Please take time to read the scope of this article in 410.1. Support. Listed clips identified for use with the type of ceiling framing member(s) and lumin aire(s) shall also be permitted. General. Electric-discharge luminaires equipped with a flanged surface inlet shall be permitted to be supplied by cord pendants equipped with cord connectors. 110.2]. Another issue when doing inspections is verifying that the required insulation clearances are present. This change happened several code cycles ago, and at the time it caused confusion for those in the electrical industry. Luminaires shall be permitted to be connected to busways in accordance with 368.17(C). Receptacles, Connectors, and Attachment Plugs. No parts of cord-connected luminaires, chain-, cable, or cord-suspended luminaires, lighting track, pendants, or ceiling-suspended (paddle) fans shall be located within a zone measured 900 mm (3 ft) horizontally and 2.5 m (8 ft) vertically from the top of the bathtub rim or shower stall threshold. (A) Definition. nec article 410 contains requirements for installing nec article 410 contains requirements for installing or exceeds 400 mm (16 in.) In other words, the lamp is the disconnect. Luminaire Studs. The fittings cannot have general-purpose receptacles. Im not going to cover every one of these items in detail, but please be aware that units installed in wet or damp locations have to be listed for the appropriate location and should prevent water from entering a wiring compartment. Integral Thermal Protection. Enterprise Application Integration: New Solutions for a Solved Problem or a Challenging Research Field? The housing for the lighting track system shall be of substantial construction to maintain rigidity. The installation shall comply with 410.59(A) through (E). Pendant Conductors for Incandescent Filament Lamps, Cord-Connected Lampholders and Luminaires (Fixtures). We have two types of recessed cans (as they are commonly called): the non-IC type and the IC type; and IC stands for Insulation Contact. Recessed. Recessed luminaires (fixtures) can be installed in the wall or ceiling. 410.14 Luminaires in Show Windows. In Part III of 410, we cover mainly outlet boxes and canopies for luminaires. For example, if we install an 8-inch diameter drum type fixture that uses incandescent lamps, we find that the fixture must have a 12-inch clearance to the storage location. Each fitting attached to a heavy-duty lighting track shall have individ ual overcurrent protection. He holds ten inspections certifications from IAEI and ICC. The track conductors shall be a minimum 12 AWG or equal and shall be copper. In 410.16, Clearance and Installation, the requirements are covered depending on the type of luminaire. They look the same in size and design, especially during construction. You may need to comply with more stringent requirements for lights than those contained in Article 410. Fixtures and lampholders must be securely supported. The NEC Wiki|powered by theWikiWP theme andWordPress. Lampholders. 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. Auxiliary equipment, including reactors, capacitors, resistors, and similar equipment, where not instal led as part of a luminaire assembly, shall be enclosed in accessi ble, permanently installed metal cabinets. In addition to complying with the general requirements for luminaires, such equipment shall comply with Part XIII of this article. with a cover suitable for use in wet locations to provide access to the supply terminations within the pole or pole base.Exception No. . 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. The lampholder must be at least 2.5 m (8 ft.) above the floor unless an individual switch is installed for each fixture. Auxiliary equipment for electric-discharge lamps shall be enclosed in noncombustible cases and treated as sources of heat. When connected to multiwire branch circuits, the disconnecting means shall simultaneously break all the supply conductors to the ballast, including the grounded conductor. You cannot support a fixture by the screw shell of a lampholder if it weighs more than 3 kg (6 lb.) Please read the locations where track lighting is not permitted; you will find nine locations listed in 410.151(C). 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. Total Cards. Article 410 is another example of an article in Chapter 4 of the NEC that often doesnt get a lot of emphasis from multi-trade inspectors. Connected Load. The terminal of an electric-discharge lamp shall be considered as a live part. Heavy-Duty Lighting Track. The reason for the no-luminaire zone is pretty obvious, we dont want them to be within reach of an occupant of the tub or shower during use. It is permitted, however, if the luminaire (fixture) is listed for that use. Part XII Special Provisions for Electric-Discharge Lighting System of 1000 Volts or Less includes 410.130(G) Disconnecting Means. Remember that the canopy will be included in the volume requirement, so the box and the canopy together provide the space. After a while, the inspectors actually began to know and recognize the products and the trims on sight. The clearance between the luminaire (fixture) and nearest point of storage must be 150 mm (6 in.). 1: A disconnecting means shall not be required for luminaires installed in hazardous. 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. 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 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. There are issues related to combustibles due to the heat that is generated by traditional lighting methods. Raceway fittings used to support a luminaire(s) shall be capable of supporting the weight of the complete fixture assembly and lamp(s). Support. Electric-discharge and LED luminaires surface mounted over concealed outlet, pull, or junction boxes and designed not to be supported solely by the outlet box shall be provided with suitable openings in the back of the luminaire to provide access to the wiring in the box. 410.44 Methods of Grounding. They had basically destroyed a manufactured product, and the manufacturer would no longer warranty that luminaire. Luminaires installed in corrosive locations shall be of a type suitable for such locations. The last thing we want is to have a heat source that may ignite some material within the ceiling and cause an attic fire. 1.2 m (4 ft) in length shall have one additional support. Equipment that has an open- circuit voltage exceeding 1000 volts shall not be installed in or on dwelling occupancies. Metal or nonmetallic poles shall be permitted to be used to support luminaires and as a raceway to enclose supply conductors, provided the following conditions are met: A pole shall have a handhole not less than 50 mm 100 mm (2 in. This was an inspection item which often resulted in a rejected final, due to luminaire substitutions, the wrong luminaire being used for that location, or modifications to the closet that changed the shelf location. Then, if you see something that just doesnt look right during an inspection, you will know where to go to verify the code requirements. A ballast in a fluorescent exit luminaire shall not have thermal protection. 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. If you install any electrical wiring or equipment in, or adjacent to, bodies of water not covered by other Articles in the NEC, the installation must conform to Article 682 [682.1]. Excess wiring shall be avoided. Tap conductors can run to a box at least 300 mm (1 ft.) from the fixture. Electric-discharge lighting systems with an open- circuit voltage exceeding 1000 volts shall be listed and installed in conformance with that listing. However, the requirements within this article are important to know and enforce. Type. The switch or circuit breaker shall be located within sight from the luminaires or lamps, or it shall be permitted to be located elsewhere if it is lockable in accordance with 110.25. There are two specific locations I want to cover in this article. This is usually not an issue on 6 or 7 inch recessed cans, as they are typically IC rated and easily checked. A means to connect an equipment ground must be provided for a metal luminaire (fixture). 410.54 Pendant Conductors for Incandescent Filament Lamps. Part IV is titled Luminaire Supports. Egress Luminaires. These are very commonly used in residential construction and are a very important part of the residential inspection process. Handlamps shall be equipped with a substantial guard attached to the lampholder or handle. Corrosive Locations. There are requirements for supported and unsupported cables. The first is related to locations in and near bathtub and shower areas. The incandescent fixture must have a completely enclosed lamp. 02/08/2017. Special Provisions for Electric-Discharge Lighting Systems of 1000 Volts or Less, Equipment Not Integral with Luminaire (Fixture), XIV. Elevator cables. 410.84 Cord Bushings. Metal or Nonmetallic Poles Supporting Luminaires. The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. The canopyshall be permitted to include a section of raceway not over150 mm (6 in.) 410.18 Space for Cove Lighting. The voltage to ground of any output terminals of the secondary circuit shall not exceed 7500 volts under any load conditions. Special Provisions for Electric-Discharge Lighting Systems of More Than 1000 Volts. Voltage. Luminaires (Fixtures) over Combustible Material. Conductors shall be arranged so that the weight of the luminaire or movable parts does not put tension on the conductors. You cannot have any part of a suspended fixture (i.e., the cord, pendant chain, etc.) Part XV. constant wattage autotransformer Lamp Terminals and Lampholders. 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. Where a luminaire is recessed in fire-resistant material in a building of fire-resistant construction, a temperature higher than 90C (194F) but not higher than 150C (302F) shall be considered acceptable if the luminaire is plainly marked for that service. Within Sight or Locked Type. The next important item is 410.6, which states that all luminaires and lamp holders shall be listed. Luminaires shall be installed such that the connections between the luminaire conductors and the circuit conductors can be inspected without requiring the disconnec. While my inspectors did not check every single can light, we would inspect a number of the installed luminaires and check to see if the contractor had installed the right combinations. The last item I will cover in this article is Part XIV Lighting Track, or as it is more commonly called, track lighting. Prescriptive steps for connecting and disconnecting are provided and must be provided on the equipment. One of the requirements is that these units must have a thermal protection device that will disconnect the lamp if the temperature limit is exceeded. Constant wattage autotransformer Light enters the eye through a transparent layer called the c./cornea Which of the following materials absorbs the most light? The first definition found in 410.2 is for closet storage space. Another requirement is that track fittings are not to be equipped with general purpose receptacles, which would make them more like a branch circuit. or the width of the shelf, whichever is greater; for a closet that permits access to both sides of a hanging rod, this space includes the volume below the highest rod extending 300 mm (12 in.) | RSS, Annex J ADA Standards for Accessible Design, Annex I Recommended Tightening Torque Tables from UL Standard 486A-B, Informative Annex G Supervisory Control and Data Acquisition (SCADA), Annex F Availability and Reliability for Critical Operations Power Systems; and Development and Implementation of Functional Performance Tests (FPTs) for Critical Operations Power Systems, Informative Annex B Application Information for Ampacity Calculation. D6 Maximum Demand for Range Loads, Example No. Luminaires Near Combustible Material. Luminaires (Fixtures) Near Combustible Material. The purpose of the NEC is to provide electrical installation requirements that protect persons and property from electrical hazards arising from the use of electricity. Lamp tie wires, mount ing screws, clips, and decorative bands on glass spaced at least 38 mm (112in.) Title. Metal raceways or other equipment grounding conduc tors shall be bonded to the metal pole with an equipment grounding conductor recognized by 250.118 and sized in accordance with 250.122. 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. 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. 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Which adds another degree of danger trims on sight is generated by traditional lighting methods 75 mm 1... Lampholder if it weighs more than 1000 Volts or Less includes 410.130 ( G ) disconnecting means adequate shall. Be inspected without requiring the disconnec you see a cord plugged into a device on trackthat., contains 22 articles be enclosed in noncombustible cases and treated as of! To look around and treated as sources of heat first is related combustibles! Part XIII of this article are important to know and enforce a live part grounding conductor as specified 250.118! They had basically destroyed a manufactured product, and Short-Circuit and Ground-Fault Protection and... Pole base.Exception No, and Pans an equipment grounding conductor run with circuit conductors, Overload Protection, and Facilities! 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