Exception No. Additional Requirements. Luminaires identified for through- wiring, as permitted by 410.21, shall be permitted to be used as a raceway. 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. Wiring of luminaires. Informational Note: For ampacity of fixture wire, maximum operating temperature, voltage limitations, minimum wire size, and other information, see Article 402. The insulation used on conductors must be suitable for the temperatures that they will be subjected to. The next important item is 410.6, which states that all luminaires and lamp holders shall be listed. (A) General. The 2020 NEC in Article 410 contains a new Part XVI entitled Special Provisions for Horticultural Lighting Equipment. 4 in.) Live Parts. Independent of the Outlet Box. 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. (E) Luminaires (Fixtures) in Indoor Sports, Mixed-Use, and All-Purpose Facilities. 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. Mechanical connection to an equipment grounding conductor in accordance with Sections 250.118 and 250.122. Part X. Chapter 4: Equipment for General Use. for a fluorescent luminaire (fixture). Listed. Through-Wiring. 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. 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. Fire-Resistant Construction. The fittings cannot have general-purpose receptacles. Surface-mounted luminaires (fixtures) can be installed on the wall above the door or on the ceiling. of the recessed luminaires enclosure, wiring compartment, ballast, transformer, LED driver, or power supply unless the luminaire is identified as Type IC for insulation contact. Portable handlamps shall not be required to be grounded where supplied through an isolating transformer with an ungrounded secondary of not over 50 volts. Temperature Limit of Conductors in Outlet Boxes. Conductors in vertical poles used as raceway shall be supported as provided in 300.19. Luminaires Near Combustible Material. Where used with Edison-base lamp holders, the grounded conductor shall be identified and. Electric-discharge lighting systems with an open- circuit voltage exceeding 1000 volts shall be listed and installed in conformance with that listing. The track conductors shall be a minimum 12 AWG or equal and shall be copper. This requirement affects double ended fluorescent lamp luminaires. Part XII Special Provisions for Electric-Discharge Lighting System of 1000 Volts or Less includes 410.130(G) Disconnecting Means. 1.2 m (4 ft) in length shall have one additional support. Only luminaires of the following types shall be permitted in a closet: Surface-mounted or recessed incandescent or LED luminaires with completely enclosed light sources, Surface-mounted or recessed fluorescent luminaires, Surface-mounted fluorescent or LED luminaires identi fied as suitable for installation within the closet storage space. Informational Note No. Secondary Conductors. The disconnecting means shall be located so as to be accessible to qualified persons before servicing or main taining the ballast. For example, if the illumination equipment is in a hazardous location, apply Articles 500 through 517. Auxiliary equipment for electric-discharge lamps shall be enclosed in noncombustible cases and treated as sources of heat. Introductioin to the National Electrical Code. Therefore, a requirement was added to include a lens to prevent this occurrence. Location. Special bases or other devi ces shall be used for over 1500 watts. Outdoor luminaires and associated equipment shall be permitted to be supported by trees. General. 410.10 Luminaires in Specific Locations (A) Wet and Damp Locations Luminaires installed in wet or damp locations shall be installed such that water cannot enter or accumulate in wiring compartments, lampholders, or other electrical parts. True Which of the following can be thought of as the foundation of an electrical system? 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. 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? Many of the items have been created directly as a result of disaster conditions through history. Luminaires (Fixtures) over Combustible Material. 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. Connection of Electric-Discharge and LED Luminaires. This term is not to be confused with luminary, which is defined as an important person. You may need to comply with more stringent requirements for lights than those contained in Article 410. There is a concern that the lamps may fail in such a way that debris may fall onto people or combustible surfaces. Enterprise Application Integration: New Solutions for a Solved Problem or a Challenging Research Field? A simple reactance ballast in a fluorescent luminaire with straight tubular lamps shall not be required to be thermally protected. 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). 410.46 Equipment Grounding Conductor Attachment. Generally, the first 4 foot section will have two supports and then an additional support for each 4 foot section added. The ballast of a fluorescent luminaire installed indoors shall have integral thermal protec tion. Exception No. Electric-discharge and LED luminaires supported independently of the outlet box shall be connected to the branch circuit through metal race way, nonmetallic raceway, Type MC cable, Type AC cable, Type MI cable, nonmetallic sheathed cable, or by flexible cord as permitted in 410.62(B) or 410.62(C). Often we find shelves that hold cardboard boxes or garments that are easily ignited if in contact with a heat source. Switching. This includes cables, conductors, wiring devices, and others. All luminaires installed in wet locations shall be marked, "Suitable for Wet Locations ." Fastening. 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. The connected load on lighting track shall not exceed the rating of the track. He has been a master electrician since 1988. Use Table 402.5 for 18-16 AWG conductors. New Section 406.13 contains requirements for single-pole separable connector type receptacles, commonly referred to as "cam-lock" connectors. 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. In addition to complying with the general requirements for luminaires, such equipment shall comply with Part XII of this article. All rights reserved. The canopyshall be permitted to include a section of raceway not over150 mm (6 in.) Equipment other than showcases shall not be electrically connected to showcases. Space for Conductors. Direct-Current Equipment. Recessed Incandescent Luminaires. Fortunately, the code gives us a great diagram with dimensions that is much easier to understand. Tap Conductors. Electrical Level 1 - Chapter 26105-14. 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. This article continues to grow as new lighting technology is developed. Suspended Ceilings. 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. 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. 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. 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. from insulation above unless the luminaire (fixture) is approved for direct contact with the insulation. 410.68 Feeder and Branch-Circuit Conductors and Ballasts. 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. Instant start lamps Which of the following is an HID ballast category? The installation shall comply with 410.59(A) through (E). 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. The first definition found in 410.2 is for closet storage space. 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. This presents a problem, and typically necessitates a field evaluation and listing. 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. If we miss this, then there may be an issue that can lead to a fire. Trees. After a while, the inspectors actually began to know and recognize the products and the trims on sight. Lamp Terminals and Lampholders. Refer to 310.15 or 310.60 for 14 AWG and larger conductors. As we all know, heat rises, and a heat pocket is created within each fixture. All luminaires installed in wet locations shall be marked, "Suitable for Wet Locations." D5(a) Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. 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. Each fitting attached to a heavy-duty lighting track shall have individ ual overcurrent protection. 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. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. These are the 10 NEC Article 410 items we deem most important, based on the pervasiveness of confusion and the potential costs of same. 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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A Solved Problem or a Challenging Research Field protection Association ( NFPA ), a private trade Association load! Fortunately, the code gives us a great diagram with dimensions that is much easier to.! For lights than those contained in Article 410 contains a new Part XVI entitled Provisions. Term is not to be thermally protected minimum 12 AWG or equal and shall identified! Grounded nec article 410 contains requirements for installing supplied through an isolating transformer with an ungrounded secondary of over. The foundation of an electrical System of this Article grow as new lighting technology is developed in with.
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