nec article 410 contains requirements for installing

Pendant Conductors for Incandescent Filament Lamps, Cord-Connected Lampholders and Luminaires (Fixtures). 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. See ANSI/ASTM E842015a,StandardTest Method for Surface Burning Characteristics of Building Materialsor ANSI/UL 7232013,Standard for Test for Surface Burning Characteristics of Building Materials. from lamp terminals shall not be required to be grounded. Part XII. Wiring methods and materials supplying the luminaire(s) shall not be exposed within the cooking hood. Fastening. Bases, Incandescent Lamps. The canopyshall be permitted to include a section of raceway not over150 mm (6 in.) Simple Reactance Ballasts. 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. Informational Note: Combustible low-density cellulose fiber board includes sheets, panels, and tiles that have a density of 320 kg/m3(20 lb/ft3) or less and that are formed of bonded plant fiber material but does not include solid or laminated wood or fiberboard that has a density in excess of 320 kg/m3(20 lb/ft3) or is a material that has been integrally treated with fire-retarding chemicals to the degree that the flame spread index in any plane of the material will not exceed 25, deter mined in accordance with tests for surface burning characteris tics of building materials. Dwelling Occupancies. The connected load on lighting track shall not exceed the rating of the track. Tension. Where raceway risers or cable is not installed within the pole, a threaded fitting or nipple shall be brazed, welded, or attached to the pole opposite the handhole for the supply connection. Luminaires Near Combustible Material. What about single pin lamps? XVI. 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. The main item I want to cover here is the poles used to mount area lighting. This may create inspection issues, as Ive seen these cord- and plug-connected and hung in various ways that I didnt consider permanent. for surface-mounted fluorescent lumin aires installed on the wall above the door or on the ceil ing. Metallic guards shall be grounded by means of an equip ment grounding conductor run with circuit conductors within the power-supply cord. The luminaires shall be marked for dc operation. Recepta cles, connectors, and attachment plugs shall be of a listed grounding type rated 15 or 20 amperes. 38. 410.8 Inspection. Multiwire Branch Circuits. 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. Accessible. For the AHJ, this is once again one of those judgment calls. 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 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. 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. Lamps shall not be located where normally exposed to physical damage. 110.2]. 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. The fixtures must be installed in a manner so that water will not enter or collect in the lampholder, wireway, etc. Pendant luminaires (fixtures) or lampholders and incandescent luminaires (fixtures) whose lamps are not totally enclosed. Unless identified for supports at greater intervals, a single section 1.2 m (4 ft) or shorter in length shall have two supports, and, where installed in a continuous row, each individual section of not more than. Part IV is titled Luminaire Supports. 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. 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 General. There are additional requirements for cable installed in cable tray and cable grouped together supported by messenger cable. Adequate airspace shall be provided between lamps and shades or other enclosures of combustible material. Outlet Boxes. | 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. The track system ends shall be insulated and capped. The electrical rating shall include the voltage and frequency and shall indicate the current rating of the unit, including the ballast, transformer, LED driver, power supply, or autotransformer. Egress Luminaires. Marking. Exception No. Recessed high-intensity luminaires designed to be installed in wall or ceiling cavities shall have thermal protec tion and be identified as thermally protected. 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. Where used with Edison-base lamp holders, the grounded conductor shall be identified and. Equipped with Flanged Surface Inlet. So at first, the contractor had to field install these devices, but eventually manufacturers started to ship units with the disconnects installed. 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. Making this call once or twice, pretty well solved the problem in our area. between the first case and the supply receptacle. Conductors shall be arranged so that they are not subjected to tempera tures above those for which they are rated. Don't let this Article's length and degree of detail throw you. The details are found in 410.10(D), where we describe a zone in which no luminaire may be installed. Support. Insulating Joints. Open-Circuit Voltage of 1000 Volts or Less. Part III. 410.18 Space for Cove Lighting. The clearance between the luminaire (fixture) and nearest point of storage must be 300 mm (12 in.) Conductors shall be secured in a manner that does not tend to cut or abrade the insulation. Thermal protection shall not be required in a recessed high-intensity discharge lumin aire identified for use and installed in poured concrete. 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. Luminaires over Combustible Material. 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. Connection of Electric-Discharge and LED Luminaires. Article 430 contains the specific rules for conductor sizing, overcurrent protection, control circuit conductors, motor controllers, and disconnecting means. Lighting track shall be securely mounted so that each fastening is suitable for supporting the maximum weight of luminaires that can be installed. A ballast in a fluorescent exit luminaire shall not have thermal protection. 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. When these 4 inch units are IC rated, they look like a can within a box design, and they are typically more expensive when compared to the non-IC rated units. Another requirement is that track fittings are not to be equipped with general purpose receptacles, which would make them more like a branch circuit. Exposed Components. Temperature Limit of Conductors in Outlet Boxes. Article 410 provides the requirements for installing luminaires, lampholders, lamps, and decorative lighting products on circuits greater than 30V. Where supplied by a circuit having a grounded conductor, the grounded conductor shall be connected to the screw shell. Transformers shall be enclosed, identified for the use, and listed. 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. XII. All luminaires installed in wet locations shall be marked, "Suitable for Wet Locations ." NEC Article 410 contains requirements for installing recessed lighting fixtures causing them to emit electrons? The equipment grounding conductor c. Another issue when doing inspections is verifying that the required insulation clearances are present. (A) Definition. Equipment that has an open- circuit voltage exceeding 1000 volts shall not be installed in or on dwelling occupancies. instant-start lamps which of the following is an HD ballast category? There is an exception for replacement luminaires (fixtures) and a second one. 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. Thermal protection shall not be required in a recessed high-intensity luminaire whose design, construction, and thermal performance characteristics are equivalent to a thermally protected luminaire and are identi fied as inherently protected. Lets examine the requirements of the NEC, IES, and other standards. A common problem here is that a contractor will use a particular brand of recessed can, and then trim them out with a different brand of trim; since those items were not tested together, this is a violation of the IC listing of the recessed can. The groun ded conductor, where connected to a screw shell lampholder, shall be connected to the screw shell. Raceway fittings used to support a luminaire(s) shall be capable of supporting the weight of the complete fixture assembly and lamp(s). The fittings cannot have general-purpose receptacles. for recessed fluorescent luminaires instal led in the wall or the ceiling. They must be installed so that any adjacent combustible material will not be subjected to a temperature higher than 90C (194F). Wet and Damp Locations. 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. 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). Then, if you see something that just doesnt look right during an inspection, you will know where to go to verify the code requirements. This month we will continue the series of articles covering basic electrical inspection items. 410.62 Cord-Connected Lampholders and Luminaires. Lampholders of the screw shell type shall be of porcelain or other suitable insulating materials. As we all know, heat rises, and a heat pocket is created within each fixture. with a cover suitable for use in wet locations to provide access to the supply terminations within the pole or pole base.Exception No. 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. 410.48 Luminaire Wiring General. The lampholder must be at least 2.5 m (8 ft.) above the floor unless an individual switch is installed for each fixture. 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. Each fitting attached to a heavy-duty lighting track shall have individ ual overcurrent protection. Since the housing is concealed within the ceiling, we dont necessarily know what is close to or in contact with the luminaire housing. The NEC Wiki|powered by theWikiWP theme andWordPress. The last item I will cover in this article is Part XIV Lighting Track, or as it is more commonly called, track lighting. You might ask why this requirement applies to double ended lamp units only. 410.56 Protection of Conductors and Insulation. (B) Metal or Nonmetallic Poles Supporting Luminaires (Lighting Fixtures). D5(a) Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. 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. 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. The disconnecting means shall be located so as to be accessible to qualified persons before servicing or main taining the ballast. Electrical Level 1 - Chapter 26105-14. Enterprise Application Integration: New Solutions for a Solved Problem or a Challenging Research Field? within 900 mm (3 ft.) horizontally and 2.5 m (8 ft.) vertically from the top of the bathtub rim or shower stall threshold. Chapter 5: Special Occupancies. NEC Section 410.130(F)(5) Location. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. Lamps or lampholders shall be designed so that there are no exposed live parts when lamps are being inserted or removed. 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. 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. All luminaires shall be marked with the maxi mum lamp wattage or electrical rating, manufacturers name, trademark, or other suitable means of identification. Unless an individual switch is provided for each luminaire, lampholders shall be located at least 2.5 m (8 ft) above the floor or shall be located or guarded so that the lamps cannot be readily removed or damaged. All luminaires, lampholders, and retrofit kits shall be listed. Part XV. 410.36 (B) Suspended ceilings Framing members of suspended ceiling systems used to support luminaires shall be securely fastened to each other and shal be securely attached to the building structure at appropriate intervals.