III. Recessed. nec article 410 contains requirements for installing nec article 410 contains requirements for installing Equipment schedules are important, and one should ask for an equipment schedule during the plan review process, to make sure of what is taking place inside the extraction room and also the surrounding areas. If you see a cord plugged into a device on a trackthat is a violation. You probably guessedit is the last item in Article 410, and it states that holiday lighting shall be in accordance with Article 590.3(B). in any dimension shall not be suppor ted by the screw shell of a lampholder. For some reason, these are not commonly purchased with an IC rating. 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This restriction is not required if the luminaire (fixture) is installed in poured concrete and is approved for this use or when the luminaire (fixture) by construction design provides characterisitics that are equivalent to thermally protected characteristics, and are identified as such. Informational Note No. Lighting track shall not be installed in the following locations: Where likely to be subjected to physical damage, Where extended through walls or partitions, Less than 1.5 m (5 ft) above the finished floor except where protected from physical damage or track operating at less than 30 volts rms open-circuit voltage. 150 mm (6 in.) Outlet boxes or fittings installed as required by 314.23 and complying with the provisions of 314.27(A)(1) and 314.27(A)(2) shall be permitted to support luminaires. Exception No. (C) Luminaire (Fixture) Types Not Permitted. D8 Motor Circuit Conductors, Overload Protection, and Short-Circuit and Ground-Fault Protection, Example No. Lampholders Near Combustible Material. 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. a. 3: Where no equipment grounding conductor exists at the outlet, replacement luminaires that are GFCI protected shall not be required to be connected to an equipment grounding conductor. 2: Replacement luminaires shall be permitted to connect an equipment grounding conductor from the outlet in compliance with 250.130(C). Receptacles, Connectors, and Attachment Plugs. 410.10 (D) Bathtub and Shower Areas. 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. 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. However, I challenge you to always open your code book and follow along with the article to get the whole story. However, in locations such as small alcoves or similar areas where 4 inch cans are installed, we may find problems. 410.10 Luminaires in Specific Locations. Stranded conductors shall be used for wiring on luminaire chains and on other movable or flexible parts. The two that stand out are where subject to physical damage, which to date the NEC cant or wont define, and wet or damp locations. When inspecting the supports, please remember 410.154 Fastening, which states that it shall be securely mounted so that each support is suitable for the weight of the luminaires that can be installed. The luminaires shall be marked for dc operation. Portable Handlamps. Now we know the locations that we are allowed to install the luminaire related to the defined storage area. Parts of the luminaire exposed within the hood shall be corrosion resistant or protected against corrosion, and the surface shall be smooth so as not to collect deposits and to facilitate cleaning. Luminaires installed in corrosive locations shall be of a type suitable for such locations. 410.44 Methods of Grounding. However, the requirements within this article are important to know and enforce. C. Construction Specifications 330.104 Conductors The NEC specifies a few requirements for outlet boxes, inspection, suspended ceilings, luminaire (fixture) studs, insulating joints, raceway fittings, busways, and trees. 1: See 225.26 for restrictions for support of overhead conductors. 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. The NEC specifies a few requirements for outlet boxes, inspection, suspended ceilings, luminaire (fixture) studs, insulating joints, raceway fittings, busways, and trees. A pole with a hinged base shall have the equipment grounding terminal accessible within the base.Exception to (3): No grounding terminal shall be required in a pole2.5 m (8 ft) or less in height abovegrade where the supply wiring method continues without splice or pull, and where the interior of the pole and any splices are accessible by removing the luminaire. Wiring Supplying Luminaires (Fixtures) Connected Together, VII. Chapter 4 of the National Electrical Code (NEC), Equipment for General Use, contains 22 articles. Bases, Incandescent Lamps. (B) Metal or Nonmetallic Poles Supporting Luminaires (Lighting Fixtures). D2(a) Optional Calculation for One-Family Dwelling Heating Larger than Air Conditioning [See Section 220.82], Example No. He has been a master electrician since 1988. (A) Wet and Damp Locations. In addition to complying with the general requirements for luminaires, such equipment shall comply with Part XIII of this article. A lumin aire requiring supply wire rated higher than 60C (140F) shall be marked with the minimum supply wire temperature rating on the luminaire and shipping carton or equivalent. You may need to comply with more stringent requirements for lights than those contained in Article 410. Some of the articles include provisions pertaining to switches, receptacles, switchboards and panelboards, industrial control panels, luminaires, appliances, air-conditioning and refrigeration equipment, and transformers. Luminaires that use a metal halide lamp other than a thick-glass parabolic reflector lamp (PAR) shall be provided with a containment barrier that encloses the lamp, or shall be provided with a physical means that only allows the use of a lamp that is Type O.Informational Note: See ANSI Standard C78.389, General. The means for providing illumination has gone through numerous changes over the centuries, from oil lamps to incandescent bulbs, to fluorescent tubes and LEDs. This article covers luminaires, portable lumin aires, lampholders, pendants, incandescent filament lamps, arc lamps, electric-discharge lamps, decorative lighting products, lighting accessories for temporary seasonal and holiday use, portable flexible lighting products, and the wiring and equip ment forming part of such products and lighting installations. Provisions at Luminaire Outlet Boxes, Canopies, and Pans. Also in part (B), the clearance to any insulation is required to be at least 3 inches. Secondary Circuit(s). Chapter 3: Wiring Methods and Materials. The canopyshall be permitted to include a section of raceway not over150 mm (6 in.) These are the 10 NEC Article 410 items we deem most important, based on the pervasiveness of confusion and the potential costs of same. Many of the items have been created directly as a result of disaster conditions through history. Open-Circuit Voltage of 1000 Volts or Less. Enclosures. 2014 Code Language: 410.130 (G) Disconnecting means. Metal Cabinets. 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. The 1999 National Electrical Code (NEC) Section 410-66 gives rules for non-Type-IC recessed luminaire clearance from combustible materials and thermal insulation: "A recessed fixture that is not identified for contact with insulation shall have all recessed parts spaced at least 1/2 in. Requirements here also mention that adequate wiring space shall be provided for proper connections. This becomes a challenge because insulation has the tendency to go everywhere if it is blown in; or if it is batt insulation, it may eventually fall onto a fixture. This is usually not an issue on 6 or 7 inch recessed cans, as they are typically IC rated and easily checked. 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. Incandescent luminaires with open or partially enclosed lamps and pendant luminaires or lampholders shall not be permitted. Portable luminaires shall be wired with flexible cord recognized by 400.4 and an attachment plug of the polar ized or grounding type. D9 Feeder Ampacity Determination for Generator Field Control, Example No. 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. Heres a question you might have heard: where in the code do we cover holiday lighting? Such luminaires shall be permitted to have an additional guard. Support. 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. Electric-discharge luminaires equipped with a flanged surface inlet shall be permitted to be supplied by cord pendants equipped with cord connectors. Like Ive mentioned before, be proactive when you are starting a new project and let the contractor know from the beginning (before the products show up on the jobsite) that you will be checking for this. All luminaires installed in wet locations shall be marked, Suitable for Wet Locations. All luminaires installed in damp locations shall be marked Suitable for Wet Locations or Suitable for Damp Locations.. D5(b) Optional Calculation for Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. 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. Secondary Connections. Adequate airspace shall be provided between lamps and shades or other enclosures of combustible material. 150 mm (6 in.) 4: A disconnecting means shall not be required in industrial establishments with restricted public access where conditions of maintenance and supervision ensure that only qualified persons service the installation by written procedures. Direct-Current Equipment. D2(b) Optional Calculation for One-Family Dwelling, Air Conditioning Larger than Heating [See 220.82(A) and 220.82(C)], Example No. The term luminaires is recommended by the International Electrotechnical Commission. Transformers of the oil-filled type shall not be used. Exposed Components. Trees. Luminaires and lighting equipment shall be grounded as required in Article 250 and Part V of this article. So at first, the contractor had to field install these devices, but eventually manufacturers started to ship units with the disconnects installed. 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. Since most poles are metallic, you absolutely have to make this inspection to insure they are grounded. All of the electrical equipment and enclosures must be specifically approved for the location [682.10]. Equipment other than showcases shall not be electrically connected to showcases. Temperature. Subject. A recessed remote ballast for a high-intensity discharge luminaire shall have thermal protec tion that is integral with the ballast and shall be identified as thermally protected. Dwelling Occupancies. Closet Storage Space. 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. No other externally wired luminaires shall be used. (c)Listed luminaires connected using listed assemblies. The insulation used on conductors must be suitable for the temperatures that they will be subjected to. Total Cards. Exception No. best small portable charger for android; international conference on social sciences and humanities 2022; radiator stop leak tablets Outlet Boxes to Be Covered. Luminaires shall not be used as a raceway for circuit conductors unless they comply with 410.64(A), (B), or (C). The next important item is 410.6, which states that all luminaires and lamp holders shall be listed. One note Id like to add regarding these inspections. The 2020 NEC in Article 410 contains a new Part XVI entitled Special Provisions for Horticultural Lighting Equipment. Informational Note No. Thermal insulation shall not be installed above a recessed luminaire or within 75 mm (3 in.) Temperature Limit of Conductors in Outlet Boxes. Pendant conductors longer than 900 mm (3 ft) shall be twisted together where not cabled in a listed assembly. If they dont say IC Rated on the luminaire, then the inspector should make sure there is a definite method to prevent insulation ever coming into contact with the luminaire. 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. If you see some round insulation pieces with foil on one side laying on the ground in rooms that have surface-mounted fixtures, have the electrician drop the fixture and see if the remnants of some insulation are still glued to the top of the fixture. General. The connected load on lighting track shall not exceed the rating of the track. Location. Remember that the canopy will be included in the volume requirement, so the box and the canopy together provide the space. However, the only requirements for luminarie installations in closets appear in section 410.16, which specifically addresses luminaires in clothes closets. Part V reviews the grounding requirements and basically states that if a luminaire or lighting equipment has metal parts, it shall be grounded. 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. They must be installed so that any adjacent combustible material will not be subjected to a temperature higher than 90C (194F). Luminaires shall be constructed, installed, or equipped with shades or guards so that combustible material is not subjected to temper atures in excess of 90C (194F). Another issue when doing inspections is verifying that the required insulation clearances are present. D2(c) Optional Calculation for One-Family Dwelling with Heat Pump(Single-Phase, 240/120-Volt Service) (See 220.82), Example D3(a) Industrial Feeders in a Common Raceway, Example No. I should mention here that we use the term luminaires as a more international reference to lighting fixtures. Wiring of cranes and hoists. Space for Conductors. Live Parts. Combustible Material. Replacement ballasts shall also have thermal protection integral with the ballast. Lighting track must be permanently installed, permanently connected to the branch circuit, and use only track lighting fittings. First is the requirement for properly sized handholes, which allows the installer to make the circuit conductor connections and most importantlythe grounding connections. Electrical Rating. The installation shall comply with 410.59(A) through (E). 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. These luminaries are commonly worked on without the removal of power, thus creating a shock hazard to the person performing the work. Luminaires and lampholders shall be securely supported. Where supplied by a circuit having a grounded conductor, the grounded conductor shall be connected to the screw shell. 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. Title. (D) Bathtub and Shower Areas. 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. 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 for surface-mounted fluorescent lumin aires installed on the wall above the door or on the ceil ing. Stranding. Informational Note: For ampacity of fixture wire, maximum operating temperature, voltage limitations, minimum wire size, and other information, see Article 402. The ballast of a fluorescent luminaire installed indoors shall have integral thermal protec tion. Outlet Boxes. A ballast in a fluorescent exit luminaire shall not have thermal protection. Therefore, a requirement was added to include a lens to prevent this occurrence. Protection Through Metal. Pendant luminaires (fixtures) or lampholders and incandescent luminaires (fixtures) whose lamps are not totally enclosed. Metal Halide Lamp Containment. Informational Note: See Article 100 for the definition ofMulti wire Branch Circuit. 410.110 General. 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 The NEC Wiki|powered by theWikiWP theme andWordPress. Enterprise Application Integration: New Solutions for a Solved Problem or a Challenging Research Field? Lighting track cannot be used in the following locations: where it can be subject to physical damage; in damp or wet locations; in storage battery rooms; where subject to corrosive vapors; where concealed, in hazardous (classified) locations; where extended through walls or partitions; less than 1.5 m (5 ft.) above the finished floor unless it is protected from physical damage or operating at less than 30 volts rms open-circuit volts, and where prohibited by 410.4(D). 4 in.) Parts VI through IX deal with items generally covered by the manufacturers of the luminaires. Lampholders of the screw shell type shall be installed for use as lampholders only. As we mentioned earlier, we have a definition for closet storage space. 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.) Lighting track shall be securely mounted so that each fastening is suitable for supporting the maximum weight of luminaires that can be installed. Tap Conductors. Disconnection. (A) Definition. Refer to 310.15 or 310.60 for 14 AWG and larger conductors. In this case, the power to the ballast is disconnected when the lamp is removed. Many times workers who are shocked dont die from the electrocution, but from the fall. D5(a) Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. Connection of utilization equipment to facilitate frequent interchange. 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. The grounding terminations within the poles are often difficult to install and also inspect. Fittings identified for use on lighting track shall be designed specifically for the track on which they are to be installed. in length and intended to facilitate the connection to an outlet box mounted above a suspended ceiling. The terminals of an electric- discharge lamp shall be considered as energized where any lamp terminal is connected to a circuit of over 300 volts. Special Provisions for Electric-Discharge Lighting Systems of More Than 1000 Volts. in any dimension. Another requirement is that track fittings are not to be equipped with general purpose receptacles, which would make them more like a branch circuit. I will not go into detail here, but the scope has a laundry list of items and you will find that it is pretty exclusively related to lighting products and devices. 410.42 Luminaire(s) with Exposed Conductive Parts. The first definition found in 410.2 is for closet storage space. 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. Professional. Luminaire Types Not Permitted. An autotransformer that is used to raise the voltage to more than 300 volts, as part of a ballast for supplying lighting units, shall be supplied only by a grounded system. Luminaires shall be wired so that the screw shells of lampholders are connected to the same luminaire or circuit conductor or terminal. Snap switches shall comply with 404.14. Auxiliary equipment for electric-discharge lamps shall be enclosed in noncombustible cases and treated as sources of heat. The incandescent fixture must have a completely enclosed lamp. While it may be possible to list them together, I havent seen a fixture that is listed for another manufacturers trims. GET YOUR CEUS TODAY, 1998-2021. Outdoor luminaires and associated equipment shall be permitted to be supported by trees. All luminaires installed in wet locations shall be marked, "Suitable for Wet Locations ." Insulating joints that are not designed to be mounted with screws or bolts shall have an exterior metal casing, insulated from both screw connections. Electric-Discharge Lamp Auxiliary Equipment. Inherently Protected. Professional. Special Provisions for Flush and Recessed Luminaires. Generally, the first 4 foot section will have two supports and then an additional support for each 4 foot section added. 410.50 Polarization of Luminaires. This month we will continue the series of articles covering basic electrical inspection items. Listed clips identified for use with the type of ceiling framing member(s) and lumin aire(s) shall also be permitted. 02/08/2017. Solder Prohibited. Surface-mounted or recessed incandescent or fluorescent fixtures are permitted. Equipment that has an open- circuit voltage exceeding 1000 volts shall not be installed in or on dwelling occupancies. NEC Article 410 contains requirements for installing _____. Diffusers shall be resistant to thermal shock. Adjacent to Combustible Materials. Considered as Energized. 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. Luminaires (Fixtures) in Specific Locations. 410.14 Luminaires in Show Windows. Such tap conductors shall be in suitable raceway or Type AC or MC cable of at least 450 mm (18 in.) Each fitting attached to a heavy-duty lighting track shall have individ ual overcurrent protection. 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. 400.10 Uses Permitted (A) Uses Flexible cords and flexible cables shall be used only for the following: Pendants. A metal pole shall be provided with an equipment grounding terminal as follows: A pole with a handhole shall have the equipment grounding terminal accessible from the handhole. Equipment for use with electric-discharge lighting systems and designed for an open-circuit voltage of 1000 volts or less shall be of a type identified for such service. A luminaire shall be permitted to be connected witha cord terminating in a grounding-type attachment plug orbusway plug. NFPA 70, National Electrical Code (NEC) Softbound Order the reorganized and updated NFPA 70 , National Electrical Code (NEC ), 2023 edition, today and get the latest requirements for electrical installations. Lampholders installed in damp locations shall be listed for damp locations or shall be listed for wet locations. Elevator cables. These must be unswitched lampholders. samsung dishwasher top rack falls down. between the first case and the supply receptacle. Mechanical connection to an equipment grounding conductor in accordance with Sections 250.118 and 250.122. Electrical Level 1 - Chapter 26105-14. Connection of Electric-Discharge and LED Luminaires. Recessed high-intensity luminaires designed to be installed in wall or ceiling cavities shall have thermal protec tion and be identified as thermally protected. Just another site Part II of Article 410 deals with locations of luminaires and some of the conditions related to certain locations due to the hazards that may be involved. Wiring on or within luminaires shall be neatly arranged and shall not be exposed to physical damage. Wet and Damp Locations. Independent of the Outlet Box. 38. 110.2]. However, Ive had inspectors try to apply the requirements for closets in 410 to other locations. Conductors that have insulation suitable for the temperature encountered shall be used. That zone is 3 feet horizontally and 8 feet vertically from the tub rim or the shower threshold. If you try to read the definition, it might be a little confusing trying to imagine the shape from the language. If the wiring system provides a means of grounding, exposed conductive parts must be grounded. In Article 100 we find the definition for a clothes closet, which is a non-habitable room or space intended primarily for the storage of garments and apparel. The fixtures must be installed in a manner so that water will not enter or collect in the lampholder, wireway, etc. Marking. These poles are likely to be touched by the general public, and if a fault occurs a person could be seriously injured or killed. 410.59 Cord-Connected Showcases. Construction. Use Table 402.5 for 18-16 AWG conductors. Please read the locations where track lighting is not permitted; you will find nine locations listed in 410.151(C). NEC Article 410 contains requirements for installing recessed lighting fixtures causing them to emit electrons? An incandescent lamp for general use on lighting branch circuits shall not be equip ped with a medium base if rated over 300 watts, or with a mogul base if rated over 1500 watts. Five exceptions exist in the 2011 Code, so please review. 410.130 (G) Disconnecting means. Surface-mounted luminaires (fixtures) can be installed on the wall above the door or on the ceiling. Scope. There is an exception for replacement luminaires (fixtures) and a second one. 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. Where supplied by the ungrounded conduc tors of a circuit, the switching device of auxiliary equipment shall simultaneously disconnect all conductors. 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. . for a fluorescent luminaire (fixture). 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. In other words, the lamp is the disconnect. If the luminaire (fixture) is recessed in fire-resistant construction in a fire-resistant building, the temperature restriction is increased to 150C (302F) if the luminaire (fixture) is approved for this service. Other. This requirement affects double ended fluorescent lamp luminaires. The load and the branch-circuit rating cannot exceed the rating of the track. a disconnecting means either internal or external to each luminaire (fixture), to disconnect simultaneously from the source of supply all conductors of the ballast, including the grounded conductor if any. When doing final inspections after the fixtures have been installed, please take a minute to look around. 410.64 Luminaires as Raceways. A toggle bolt pushed through a lay-in ceiling tile will likely not be adequate. Recessed Remote Ballasts. The electrical service equipment b. Lamps or lampholders shall be designed so that there are no exposed live parts when lamps are being inserted or removed. The luminaire shall then comply with 410.42. Voltage. The conductors shall be installed within the track housing, permit ting insertion of a luminaire, and designed to prevent tamper ing and accidental contact with live parts. Framing members of suspended ceil ing systems used to support luminaires shall be securely fastened to each other and shall be securely attached to the building structure at appropriate intervals. Locations Not Permitted. Luminaires and equipment shall be mechanically connected to an equipment grounding conductor as specified in 250.118 and sized in accordance with 250.122. for recessed fluorescent luminaires instal led in the wall or the ceiling. Article 410 provides the requirements for installing luminaires, lampholders, lamps, and decorative lighting products on circuits greater than 30V. A brief note regarding 410.18 Space for Cove Lighting: the code states that cove lighting shall have adequate space so that lamps and equipment can be properly installed and serviced. In addition to complying with the general requirements for luminaires, such equipment shall comply with Part XII of this article. The basic rule here is that a pole shall have a handhole that is 2 inches by 4 inches with a suitable cover for wet locations. Once the job is complete, it is not unusual for all kinds of inventive wiring methods to start, but those are well beyond our control. The clearance between the luminaire (fixture) and nearest point of storage must be 150 mm (6 in.). 2: See 300.5(D) for protection of conductors. The solution we found was to have the carpenter install fire blocking above the luminaire to prevent insulation from coming down into any architectural area where the luminaires were installed. 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. Luminaires Near Combustible Material. Some of the "quick" requirements include: The authority having jurisdiction (AHJ) must approve all electrical conductors and equipment [Sec. from lamp terminals shall not be required to be grounded. D10 Feeder Ampacity Determination for Adjustable-Speed Drive Control [See 215.2, 430.24, 620.13, 620.14, 620.61, Tables 430.22(E), and 620.14], Example No. 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. Parts that must be removed for lamp replacement shall be hinged or held captive. D6 Maximum Demand for Range Loads, Example No. Then, if you see something that just doesnt look right during an inspection, you will know where to go to verify the code requirements. Construction of Luminaires (Fixtures), Electric-Discharge Lamp Auxiliary Equipment, XI. 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. Installed in Poured Concrete. Constant wattage autotransformer Light enters the eye through a transparent layer called the c./cornea Which of the following materials absorbs the most light? All luminaires, lampholders, and retrofit kits shall be listed. Luminaires in Indoor Sports, Mixed-Use, and All-Purpose Facilities. Which section of the NEC requires that at least 6" of free conductor length be left at each outlet box when cutting the branch circuit wires in preparation for connecting a light fixture? The raceway used for the tap conductor must be at least 450 mm (18 in.) Luminaires shal be securely fastened to the ceiling framing member by mechanical means such as bolts, scres, or rivits. 1: Luminaires made of insulating material that is directly wired or attached to outlets supplied by a wiring method that does not provide a ready means for grounding attachment to an equip ment grounding conductor shall be made of insulating material and shall have no exposed conductive parts. from insulation above unless the luminaire (fixture) is approved for direct contact with the insulation. Tap conductors of a type suitable for the temperature encountered shall be permitted to run from the luminaire terminal connection to an outlet box placed at least 300 mm (1 ft) from the luminaire. Luminaires shall be installed such that the connections between the luminaire conductors and the circuit conductors can be inspected without requiring the disconnec. NEC Section 410.130(F)(5) The voltage to ground of any output terminals of the secondary circuit shall not exceed 7500 volts under any load conditions. The bushing shall be of insulating material unless a jacketed type of cord is used. They shall be securely fastened to the track, shall maintain polarization and connections to the equipment grounding conductor, and shall be designed to be suspended directly from the track. Prescriptive steps for connecting and disconnecting are provided and must be provided on the equipment. These buildings concern unique environments that pose a high risk to multiple people. For common inspections, it is important to verify that the outlet boxes are covered; this is usually done by the fixture and/or the canopy. New Section 406.13 contains requirements for single-pole separable connector type receptacles, commonly referred to as "cam-lock" connectors. 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. Chapter 5: Special Occupancies. The first requirement is that it is to be installed permanently and permanently connected to a branch circuit. Conductor insulation shall be protected from abrasion where it passes through metal. Decorative Lighting and Similar Accessories. Inlets and connectors shall be permitted to be of a lower ampere rating than the branch circuit but not less than 125 percent of the luminaire load current. 410.70 Combustible Shades and Enclosures. If no provision for grounding is available, they must be insulated. Autotransformers. You might ask why this requirement applies to double ended lamp units only. It is also possible that the lamp socket bracket may have been pushed up too far, thereby causing a heating problem that has the thermal device shutting off the light. 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. 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. Accessible. Luminaires shall be installed so that adjacent combustible material will not be subjected to temperatures in excess of 90C (194F). Depending on the type of lighting used, whether incandescent, fluorescent, or LED, surface-mounted or flush-mounted, this section lists clearances to the nearest storage space. Provided with Mogul-Base, Screw Shell Lampholders. Recessed parts of a luminaire (fixture) that is not identified for contact with insulation must be at least 13 mm ( in.) Open-Circuit Voltage Exceeding 300 Volts. 1: A disconnecting means shall not be required for luminaires installed in hazardous. Exception No. There is a concern that the lamps may fail in such a way that debris may fall onto people or combustible surfaces. 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. A luminaire assembly equipped with a strain reliefand canopy shall be permitted to use a cord connectionbetween the luminaire assembly and the canopy. Access to Boxes. Lampholders in Wet or Damp Locations. The details are found in 410.10(D), where we describe a zone in which no luminaire may be installed. 410.56 Protection of Conductors and Insulation. D12 Park Trailer (See 552.47), ERP and Data Warehousing in Organizations: Issues and Challenges, ERP System Acquisition: A Process Model and Results From an Austrian Survey. One important requirement to note is that a fixture can be supported from an outlet box if the outlet box is required by 314.23 and complies with 314.27 (A) and 314.27 (B). There are a couple of exceptions, so please review these. 410.160 Listing of Decorative Lighting. (A) General. 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. A simple reactance ballast in a fluorescent luminaire with straight tubular lamps shall not be required to be thermally protected. Additional Requirements. The last item I will cover in this article is Part XIV Lighting Track, or as it is more commonly called, track lighting. Luminaires shall be constructed such that adjacent combustible material is not subject to tempera tures in excess of 90C (194F). 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. The installation requirements for motor control centers are covered in 110.26 (F), and air-conditioning and refrigerating equipment are covered in Article 440. Randy Hunter is an instructor and consultant specializing in electrical code and installations, and co-owner of Hunter Technical Services. Luminaires over Combustible Material. Professional. The second location to cover in detail is clothes closets, which is found in 410.16. In Part III of 410, we cover mainly outlet boxes and canopies for luminaires. constant wattage autotransformer Recessed Incandescent Luminaires. The equipment grounding conductor c. Lamp Terminals and Lampholders. Bathtub and Shower Areas. Type IC. Exit Luminaires. You cannot have any part of a suspended fixture (i.e., the cord, pendant chain, etc.) Special bases or other devi ces shall be used for over 1500 watts. (12.7mm) from combustible materials. 410.8 Inspection. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. However, the requirements within this article are important to know and enforce. Where the disconnecting means is external to the luminaire, it shall be a single device, and shall be attached to the luminaire or the luminaire shall be located within sight of the disconnecting means. Luminaires shall be permitted to be installed in commercial cooking hoods where all of the follow ing conditions are met: The luminaire shall be identified for use within commer cial cooking hoods and installed such that the tempera ture limits of the materials used are not exceeded. The groun ded conductor, where connected to a screw shell lampholder, shall be connected to the screw shell. 410.48 Luminaire Wiring General. Is a small pantry with a door in your kitchen considered a closet? The next key item to address is the use of flush and recessed luminaires, and Part X has special provisions for these. Connection of portable luminaires, portable and mobile signs, or appliances. 410.73 (G) Handbook Commentary Section 410.73 (G) was added to the 2005 Code with an effective date of January 1, 2008. . The load calculation in 220.43(B) shall not be required to limit the length of track on a single branch circuit, and it shall not be required to limit the number of luminaires on a single track. All recessed incandescent luminaires (fixtures) must have thermal protection. nec article 410 contains requirements for installing That is how is was permitted as well. Now lets review the definition in 410.2, which further defines what closet storage space is within a clothes closet. Luminaires shall be permitted to be connected to busways in accordance with 368.17(C). Suspended Ceilings. within 900 mm (3 ft.) horizontally and 2.5 m (8 ft.) vertically from the top of the bathtub rim or shower stall threshold. When connected to multiwire branch circuits, the disconnecting means shall simultaneously break all the supply conductors to the ballast, including the grounded conductor. Lets examine the requirements of the NEC, IES, and other standards. Wiring methods and materials supplying the luminaire(s) shall not be exposed within the cooking hood. Defines what closet storage space a couple of exceptions, so please these. The lamps may fail in such a way that debris may fall onto people or combustible.... Volts shall not be permitted to be supplied by a circuit having a grounded conductor shall permitted... 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Tubular lamps shall be installed for use on lighting track shall not be permitted to a... Disconnecting means shall not be installed in a manner so that adjacent material... So that each fastening is suitable for Supporting the maximum weight of luminaires fixtures. With the ballast is disconnected when the lamp is removed fluorescent luminaire installed indoors shall have ual! And 250.122 that they will be included in the volume requirement, so box! See article 100 for the track device on a trackthat is a that. Within 75 mm ( 18 in. ) enclosed lamp the clearance to any insulation is required to connected. Or fluorescent fixtures are permitted 410.151 ( C ) luminaire ( s ) shall be used for on...
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