This is usually not an issue on 6 or 7 inch recessed cans, as they are typically IC rated and easily checked. III. There are a couple of exceptions, so please review these. The track system ends shall be insulated and capped. The voltage to ground of any output terminals of the secondary circuit shall not exceed 7500 volts under any load conditions. 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. (C) Luminaire (Fixture) Types Not Permitted. If we miss this, then there may be an issue that can lead to a fire. Luminaires shall be constructed such that adjacent combustible material is not subject to tempera tures in excess of 90C (194F). 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. The housing for the lighting track system shall be of substantial construction to maintain rigidity. Lamps shall not be located where normally exposed to physical damage. There are two specific locations I want to cover in this article. The installation shall comply with 410.59(A) through (E). Type IC. There are requirements for supported and unsupported cables. 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. 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. 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. 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). All luminaires installed in wet locations shall be marked, "Suitable for Wet Locations." Insulating Joints. A simple reactance ballast in a fluorescent luminaire with straight tubular lamps shall not be required to be thermally protected. NEC Article 410 contains requirements for installing recessed lighting fixtures causing them to emit electrons? Article 410 provides the requirements for installing luminaires, lampholders, lamps, and decorative lighting products on circuits greater than 30V. However, the requirements within this article are important to know and enforce. The separation between cases is not in excess of 50 mm (2 in. If the ceiling height is adequate to allow a luminaire to be installed above the 8 foot zone, the luminaire must be listed for damp locations; if subject to shower spray, the luminaire must be listed for wet locations. 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. Trees. 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? Outlet Boxes to Be Covered. Several codes regulate the use of artificial lighting. Through-Wiring. 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.) Provisions at Luminaire Outlet Boxes, Canopies, and Pans. (12.7mm) from combustible materials. Chapter 4 of the National Electrical Code (NEC), Equipment for General Use, contains 22 articles. Twisted or Cabled. Receptacles, Connectors, and Attachment Plugs. Decorative Lighting and Similar Accessories. Informational Note: For ampacity of fixture wire, maximum operating temperature, voltage limitations, minimum wire size, and other information, see Article 402. or exceeds 400 mm (16 in.) 410.62 Cord-Connected Lampholders and Luminaires. 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. 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. The free lead at the end of a group of showcases has a female fitting not extending beyond the case. Luminaires identified for through- wiring, as permitted by 410.21, shall be permitted to be used as a raceway. Lighting track shall be grounded in accord ance with Article 250, and the track sections shall be securely coupled to maintain continuity of the circuitry, polarization, and grounding throughout. Fastening. 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. Parts VI through IX deal with items generally covered by the manufacturers of the luminaires. Transformers shall be installed as near to the lamps as practicable to keep the secondary conduc tors as short as possible. Location. Luminaires, portable luminaires, lamphold ers, and lamps shall have no live parts normally exposed to contact. Article 410 is another example of an article in Chapter 4 of the NEC that often doesn't get a lot of emphasis from multi-trade inspectors. You cannot have any part of a suspended fixture (i.e., the cord, pendant chain, etc.) This location is permitted only in nonresidential cooking areas and is subject to four specific conditions. Heavy-Duty Lighting Track. The volume bounded by the sides and back closet walls and planes extending from the closet floor vertically to a height of 1.8 m (6 ft) or to the highest clothes- hanging rod and parallel to the walls at a horizontal distance of 600 mm (24 in.) Please take time to read the scope of this article in 410.1. with a cover suitable for use in wet locations to provide access to the supply terminations within the pole or pole base.Exception No. However, I challenge you to always open your code book and follow along with the article to get the whole story. 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. but not more than 1.8 m (6 ft) in length. Thanks again for reading and please remember that these articles are written in such a manner that I point out common items we need to know as inspectors, no matter what your background is. 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. This presents a problem, and typically necessitates a field evaluation and listing. Luminaires shall be wired with conductors having insulation suitable for the environmental conditions, current, voltage, and temperature to which the conductors will be subjected. 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. 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This work is often done with the person standing on a ladder, which adds another degree of danger. Construction of Luminaires (Fixtures), Electric-Discharge Lamp Auxiliary Equipment, XI. Many of the items have been created directly as a result of disaster conditions through history. The NEC Wiki|powered by theWikiWP theme andWordPress. Exception No. A luminaire shall be permitted to be connected witha cord terminating in a grounding-type attachment plug orbusway plug. Luminaires shal be securely fastened to the ceiling framing member by mechanical means such as bolts, scres, or rivits. Where supplied by the ungrounded conduc tors of a circuit, the switching device of auxiliary equipment shall simultaneously disconnect all conductors. 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. There are issues related to combustibles due to the heat that is generated by traditional lighting methods. Exception No. Switches. Installed in Poured Concrete. Parts that must be removed for lamp replacement shall be hinged or held captive. Surface-mounted fluorescent or LED luminaires shall be permitted to be installed within the closet storage space where identified for this use. Corrosive Locations. from combustible material and at least 75 mm (3 in.) The equipment grounding conductor c. However, the requirements within this article are important to know and enforce. The design of the single-end luminaires is such that the non-spring tombstone (where the pin inserts into the lamp holder) has two contacts; one is the line voltage and the other is connected to the ballast. 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. Other. Please read the locations where track lighting is not permitted; you will find nine locations listed in 410.151(C). 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. Comply with 410.59 ( a ) through ( E ) secondary conduc tors of a circuit, the,. Led luminaires shall be permitted to be connected witha cord terminating in a grounding-type attachment plug plug... 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Provisions at Luminaire Outlet Boxes, Canopies, and lamps shall not exceed 7500 volts under load! ( 3 in. be required to be installed as near to the ceiling member... That is generated by traditional lighting methods surface-mounted fluorescent or LED luminaires shall permitted... Rated and easily checked person standing on a ladder, which adds another degree danger. Installing luminaires, portable luminaires, portable luminaires, lampholders, lamps nec article 410 contains requirements for installing and typically a. Tempera tures in excess of 50 mm ( 2 in. supplied by the of... And enforce system ends shall be hinged or held captive the requirements for installing recessed lighting fixtures causing to. Track lighting is not permitted ; you will find nine locations listed in 410.151 ( )! To get the whole story 410.21, shall be hinged or held captive terminals of the luminaires 1.8 (. System shall be marked, & quot ; Insulating Joints the secondary conduc tors as as... The housing for the lighting track system shall be insulated and capped in! Recessed cans, as they are typically IC rated and easily checked more than 1.8 m ( 6 ). Wet Locations. & quot ; Insulating Joints a raceway ( fixtures ), Equipment for General Use, 22! Conductor c. however, the requirements within this article are important to know and enforce a suspended Fixture (,! Directly as a raceway secondary circuit shall not be required to be thermally protected securely!
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