NEC Article 410 contains requirements for installing recessed lighting fixtures which of the following contain ballasts that provide high voltage across the lamp's electrodes at startup, causing then to emit electrons? Snap switches shall comply with 404.14. Special bases or other devi ces shall be used for over 1500 watts. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. D2(b) Optional Calculation for One-Family Dwelling, Air Conditioning Larger than Heating [See 220.82(A) and 220.82(C)], Example No. For inspectors, this was an issue when this code first went into effect, since the luminaire manufacturers left it up to the makers of the ballast, and the ballast people thought it should be up to the luminaire maker. The last item I will cover in this article is Part XIV Lighting Track, or as it is more commonly called, track lighting. Normally, luminaires (fixtures) cannot be used as raceways. Busways. 110.2]. Raceway Fittings. In this case, the power to the ballast is disconnected when the lamp is removed. A recessed luminaire that is identified for contact with insulation, Type IC, shall be permitted to be in contact with combustible materials at recessed parts, points of support, and portions passing through or finishing off the opening in the building structure. nec article 410 contains requirements for installing. If you are tasked with doing inspections for parking lot lighting, you need to be familiar with a few items. Independent of the Outlet Box. Lampholders. Chapter 4 of the National Electrical Code (NEC), Equipment for General Use, contains 22 articles. 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. Additional Requirements. Space for Conductors. In Part III of 410, we cover mainly outlet boxes and canopies for luminaires. They must be installed so that any adjacent combustible material will not be subjected to a temperature higher than 90C (194F). Simple Reactance Ballasts. for surface-mounted incandescent or LED luminaires with a completely enclosed light source installed on the wall above the door or on the ceiling. Enterprise Application Integration: New Solutions for a Solved Problem or a Challenging Research Field? Remember that this is a minimum requirement, and the weight of some of the track luminaires with fluorescent (ballast) or LED drivers may be quite heavy. 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. The terminal of an electric-discharge lamp shall be considered as a live part. (c)Listed luminaires connected using listed assemblies. 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. 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. 410.59 Cord-Connected Showcases. Outlet Boxes to Be Covered. Requirements here also mention that adequate wiring space shall be provided for proper connections. You cannot support a fixture by the screw shell of a lampholder if it weighs more than 3 kg (6 lb.) Part V reviews the grounding requirements and basically states that if a luminaire or lighting equipment has metal parts, it shall be grounded. 410.40 General. 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. NEC Section 410.130(F)(5) Many times workers who are shocked dont die from the electrocution, but from the fall. General. The housing for the lighting track system shall be of substantial construction to maintain rigidity. Having been a contractor for several years, I was often exasperated at whoever designed a location for lighting to be installed that you physically could not get to in order to service it, especially some of the cove lighting in restrooms where the installed stalls and plumbing fixtures created great obstacles to work around. 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. 150 mm (6 in.) Another requirement is that track fittings are not to be equipped with general purpose receptacles, which would make them more like a branch circuit. long and not more than 1.8 m (6 ft.) long, be a suitable raceway or the tap conductor must be Type AC or MC cable. This presents a problem, and typically necessitates a field evaluation and listing. 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. Recepta cles, connectors, and attachment plugs shall be of a listed grounding type rated 15 or 20 amperes. Transformers shall be located so that adjacent combustible materials are not subjec ted to temperatures in excess of 90C (194F). Electric-discharge lighting systems with an open- circuit voltage exceeding 1000 volts shall be listed and installed in conformance with that listing. Special Provisions for Flush and Recessed Luminaires (Fixtures). Integral Thermal Protection. The second location to cover in detail is clothes closets, which is found in 410.16. The raceway used for the tap conductor must be at least 450 mm (18 in.) Protection Through Metal. Transformers of the Oil-Filled Type. 410.46 Equipment Grounding Conductor Attachment. The luminaire (fixture) construction must ensure that the combustible material will not be subjected to temperatures over 194F. 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.) Wet and Damp Locations. D2(a) Optional Calculation for One-Family Dwelling Heating Larger than Air Conditioning [See Section 220.82], Example No. Please read the locations where track lighting is not permitted; you will find nine locations listed in 410.151(C). 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. Such luminaires shall be permitted to have an additional guard. I should mention here that we use the term luminaires as a more international reference to lighting fixtures. In dwelling units and guest rooms or guest suites of hotels, motels, and similar occupancies, the voltage shall not exceed 120 volts, nominal, between conduc tors that supply the terminals of the following: Luminaires Cord-and-plug-connected loads 1440 volt-amperes, nomi nal, or less or less than 14 hp 120 Volts Between Conductors. Lumin aires with exposed metal parts shall be provided with a means for connecting an equipment grounding conductor for such luminaires. Support. You might ask why this requirement applies to double ended lamp units only. Raceway fittings used to support a luminaire(s) shall be capable of supporting the weight of the complete fixture assembly and lamp(s). Luminaire Stems. Properly Secured. Article 410 provides the requirements for installing luminaires, lampholders, lamps, and decorative lighting products on circuits greater than 30V. The code has a specific set of dimensions for storage space with an explanatory diagram. 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. Luminaires in Indoor Sports, Mixed-Use, and All-Purpose Facilities. Type IC. tion of any part of the wiring unless the luminaires are connec ted by attachment plugs and receptacles. 410.68 Feeder and Branch-Circuit Conductors and Ballasts. 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). nec article 410 contains requirements for installing nec article 410 contains requirements for installing Equipped with Flanged Surface Inlet. This location is permitted only in nonresidential cooking areas and is subject to four specific conditions. Transformers shall have a secondary short-circuit current rating of not more than 150 mA if the open-circuit volt age is over 7500 volts, and not more than 300 mA if the open- circuit voltage rating is 7500 volts or less. Fixtures and lampholders must be securely supported. best small portable charger for android; international conference on social sciences and humanities 2022; radiator stop leak tablets 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. Metallic guards shall be grounded by means of an equip ment grounding conductor run with circuit conductors within the power-supply cord. Luminaires shall be installed such that the connections between the luminaire conductors and the circuit conductors can be inspected without requiring the disconnec. 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. 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. This requirement provides a safe method to service the ballast, and continues to be extended in its enforcement, adding that in existing installations the disconnecting means shall be added when ballast replacement is performed. Another issue when doing inspections is verifying that the required insulation clearances are present. 02/08/2017. 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. Outdoor luminaires and associated equipment shall be permitted to be supported by trees. 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. So, we have to picture the cube directly over the tub or shower, extending 3 feet out from the edge and 8 foot above the unit. 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. The load and the branch-circuit rating cannot exceed the rating of the track. Heres a question you might have heard: where in the code do we cover holiday lighting? 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. The first is related to locations in and near bathtub and shower areas. Remember that the canopy will be included in the volume requirement, so the box and the canopy together provide the space. Fire-Resistant Construction. Where supplied by a circuit having a grounded conductor, the grounded conductor shall be connected to the screw shell. General. Support. Marking. Splices and taps shall not be located within luminaire arms or stems. Replacement ballasts shall also have thermal protection integral with the ballast. Lighting track shall be supplied by a branch circuit having a rating not more than that of the track. Transformers shall be installed as near to the lamps as practicable to keep the secondary conduc tors as short as possible. Luminaires (Fixtures) in Specific Locations. 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. 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. Electric-Discharge Lamp Auxiliary Equipment. The last thing we want is to have a heat source that may ignite some material within the ceiling and cause an attic fire. If no provision for grounding is available, they must be insulated. 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. Through-Wiring. Pendant Conductors for Incandescent Filament Lamps, Cord-Connected Lampholders and Luminaires (Fixtures). Lamp tie wires, mount ing screws, clips, and decorative bands on glass spaced at least 38 mm (112in.) . General-purpose electrical equipment includes heaters, switches, receptacles, and cords. Recessed luminaires (fixtures) can be installed in the wall or ceiling. Luminaires Near Combustible Material. 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. in length and intended to facilitate the connection to an outlet box mounted above a suspended ceiling. Listing. 410.44 Methods of Grounding. Making this call once or twice, pretty well solved the problem in our area. Chapter 5: Special Occupancies. 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 2020 NEC in Article 410 contains a new Part XVI entitled Special Provisions for Horticultural Lighting Equipment. (A) General. A means to connect an equipment ground must be provided for a metal luminaire (fixture). Size. Items such as marking for electrical ratings and warnings for combustibles, conductor and cord usage, and connections are covered. 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. Switching. 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. Luminaire Studs. Construction. However, in locations such as small alcoves or similar areas where 4 inch cans are installed, we may find problems. Chapter 4: Equipment for General Use. 2: See 300.5(D) for protection of conductors. Pendant lampholders with permanently attached leads, where used for other than festoon wiring, shall be hung from separate stranded rubber-covered conductors that are soldered directly to the circuit conductors but suppor ted independently thereof. Run with circuit conductors can be installed in conformance with that listing and attachment plugs shall of. Remember that the required insulation clearances are present and the circuit conductors the! Permitted ; you will find nine locations listed in 410.151 ( c ) listed luminaires connected using listed.... 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Inspections for parking lot lighting, nec article 410 contains requirements for installing need to be familiar with a means for connecting an grounding...
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