for recessed incandescent or LED lumin aires with a completely enclosed light source installed in the wall or the ceiling. Egress Luminaires. of a ballast, LED driver, power supply, or transformer shall have an insulation temperature rating not lower than 90C (194F), unless supplying a luminaire marked as suitable for a different insulation temperature. If the wiring system provides a means of grounding, exposed conductive parts must be grounded. The luminaire (fixture) construction must ensure that the combustible material will not be subjected to temperatures over 194F. 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. 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. Equip ment having an open-circuit voltage exceeding 300 volts shall not be installed in dwelling occupancies unless such equipment is designed so that there will be no exposed live parts when lamps are being inserted, are in place, or are being removed. Electrical Level 1 - Chapter 26105-14. best small portable charger for android; international conference on social sciences and humanities 2022; radiator stop leak tablets 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. However, Ive had inspectors try to apply the requirements for closets in 410 to other locations. Luminaires that have exposed ballasts, transformers, LED drivers, or power supplies shall be installed such that ballasts, transformers, LED drivers, or power supplies shall not be in contact with combustible material unless listed for such condition. 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. 410.130 (G) Disconnecting means. Protection Through Metal. Stranding. The incandescent fixture must have a completely enclosed lamp. Part V reviews the grounding requirements and basically states that if a luminaire or lighting equipment has metal parts, it shall be grounded. Generally, the first 4 foot section will have two supports and then an additional support for each 4 foot section added. Heres a question you might have heard: where in the code do we cover holiday lighting? 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. 410.110 General. IAEIs Online Training allows you to learn at your own pace or live with an expert instructor, from the comfort of your laptop or PC. Electric-Discharge Lamp Auxiliary Equipment. 410.70 Combustible Shades and Enclosures. The clearance between the luminaire (fixture) and nearest point of storage must be 300 mm (12 in.) In addition to complying with the general requirements for luminaires, such equipment shall comply with Part XII of this article. These buildings concern unique environments that pose a high risk to multiple people. Voltage. There are additional requirements for cable installed in cable tray and cable grouped together supported by messenger cable. This change happened several code cycles ago, and at the time it caused confusion for those in the electrical industry. Recessed Remote Ballasts. from lamp terminals shall not be required to be grounded. Outdoor luminaires and associated equipment shall be permitted to be supported by trees. 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. Secondary circuit outputs shall not be connected in parallel or in series. Circuit breakers Circuit breakers must be capable of being opened and closed by hand. If you see a cord plugged into a device on a trackthat is a violation. Recessed Incandescent Luminaires. but not more than 1.8 m (6 ft) in length. Fire-Resistant Construction. 410.160 Listing of Decorative Lighting. Switches. Total Cards. Recessed parts of a luminaire (fixture) that is not identified for contact with insulation must be at least 13 mm ( in.) Transformers shall be enclosed, identified for the use, and listed. 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. Lampholders of the screw shell type shall be of porcelain or other suitable insulating materials. Don't let this Article's length and degree of detail throw you. for surface-mounted fluorescent lumin aires installed on the wall above the door or on the ceil ing. 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. These luminaries are commonly worked on without the removal of power, thus creating a shock hazard to the person performing the work. 410.50 Polarization of Luminaires. 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. 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. The luminaire shall then comply with 410.42. 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. Conductors that have insulation suitable for the temperature encountered shall be used. 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. Tap conductors can run to a box at least 300 mm (1 ft.) from the fixture. Snap switches shall comply with 404.14. Lamps shall not be located where normally exposed to physical damage. 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. NEC Article 410 contains requirements for installing _____. (C) In Ducts or Hoods. 410.8 Inspection. Autotransformers. 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. Usually we found that the shelf depth in the tract homes we inspected was more than 12 inches, so we had to check the clearance of these closet fixtures during a final inspection. 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. (D) Location. Electrical Rating. Grounding. Each fitting attached to a heavy-duty lighting track shall have individ ual overcurrent protection. 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 first is related to locations in and near bathtub and shower areas. Many times workers who are shocked dont die from the electrocution, but from the fall. 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. 150 mm (6 in.) in length and intended to facilitate the connection to an outlet box mounted above a suspended ceiling. Thermal protection shall not be required in a recessed high-intensity discharge lumin aire identified for use and installed in poured concrete. For example, if the illumination equipment is in a hazardous location, apply Articles 500 through 517. 1: A disconnecting means shall not be required for luminaires installed in hazardous. Such tap conductors shall be in suitable raceway or Type AC or MC cable of at least 450 mm (18 in.) Listing Required. Tap Conductors. General. Insulating joints that are not designed to be mounted with screws or bolts shall have an exterior metal casing, insulated from both screw connections. 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. Secondary Conductors. 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. As we all know, heat rises, and a heat pocket is created within each fixture. 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. General II. 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. Luminaires shall be wired with conductors having insulation suitable for the environmental conditions, current, voltage, and temperature to which the conductors will be subjected. Many of the items have been created directly as a result of disaster conditions through history. Special Provisions for Electric-Discharge Lighting Systems of 1000 Volts or Less, Equipment Not Integral with Luminaire (Fixture), XIV. Article 430 contains the specific rules for conductor sizing, overcurrent protection, control circuit conductors, motor controllers, and disconnecting means. Luminaire Types Not Permitted. 4 in.) The first definition found in 410.2 is for closet storage space. Lampholders in Wet or Damp Locations. Conductors in vertical poles used as raceway shall be supported as provided in 300.19. 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.) These are very commonly used in residential construction and are a very important part of the residential inspection process. When connected to multiwire branch circuits, the disconnecting means shall simultaneously break all the supply conductors to the ballast, including the grounded conductor. For existing installed lumin aires without disconnecting means, at the time a ballast is replaced, a disconnecting means shall be installed. The track conductors shall be a minimum 12 AWG or equal and shall be copper. for a fluorescent luminaire (fixture). Connection of portable luminaires, portable and mobile signs, or appliances. A luminaire shall be permitted to be connected witha cord terminating in a grounding-type attachment plug orbusway plug. It is permitted, however, if the luminaire (fixture) is listed for that use. Luminaires shall be of such construction or installed so that the conductors in outlet boxes shall not be subjected to temperatures greater than that for which the conductors are rated.Branch-circuit wiring, other than 2-wire or multiwire branch circuits supplying power to luminaires connected together, shall not be passed through an outlet box that is an integral part of a luminaire unless the luminaire is identified for through-wiring.Informational Note: See 410.64(C) for wiring supplying power to luminaires connected together. There are requirements and exceptions listed in the Code for these supports. The voltage to ground of any output terminals of the secondary circuit shall not exceed 7500 volts under any load conditions. Equipped with Flanged Surface Inlet. 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. Temperature Limit of Conductors in Outlet Boxes. Since most poles are metallic, you absolutely have to make this inspection to insure they are grounded. Luminaire Types Permitted. Lighting track shall be supplied by a branch circuit having a rating not more than that of the track. 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. 410.18 Space for Cove Lighting. In this case, the power to the ballast is disconnected when the lamp is removed. 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. 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. 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. External wiring is not permitted except chain-supported luminaires (fixtures). 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 main item I want to cover here is the poles used to mount area lighting. Where supplied by the ungrounded conduc tors of a circuit, the switching device of auxiliary equipment shall simultaneously disconnect all conductors. The disconnecting means shall be located so as to be accessible to qualified persons before servicing or main taining the ballast. 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. III. 410.10 Luminaires in Specific Locations. 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 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. Type IC. 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. The fixtures must be installed in a manner so that water will not enter or collect in the lampholder, wireway, etc. a. Surface-mounted or recessed incandescent or fluorescent fixtures are permitted. Splices and taps shall not be located within luminaire arms or stems. 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. 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. constant wattage autotransformer Bathtub and Shower Areas. Coves shall have adequate space and shall be located so that lamps and equipment can be properly installed and maintained. Separate Mounting. 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. Requirements here also mention that adequate wiring space shall be provided for proper connections. 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 Type IC luminaires have different requirements. Luminaires designed for end-to-end connection to form a continuous assembly, or luminaires connected together by recognized wiring methods, shall be permitted to contain the conductors of a 2-wire branch circuit, or one multiwire branch circuit, supplying the connec ted luminaires and shall not be required to be listed as a race way. (D) Bathtub and Shower Areas. A couple of notes here from field experience: if the resident complains that the luminaires are shutting off and on randomly, it is likely that the lamps are oversized for the luminaire or the wrong trim is being used. Secondary Circuit(s). It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. In 410.16, Clearance and Installation, the requirements are covered depending on the type of luminaire. Other. These changes can be found in Article 690, Solar Photovoltaic (PV) Systems. 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. Luminaires, portable luminaires, lamphold ers, and lamps shall have no live parts normally exposed to contact. For some reason, these are not commonly purchased with an IC rating. Support of Exposed Cable for PV Systems: Requirements and Recommendations, Baby, Its Cold OutsideBut the House is Warm and Electrically Safe, Grounding and Bonding Devices and Splicing Connectors for the Line Side of the Service, NEC Rapid Shutdown Requirements and UL 3741, Basic three-phase power measurements explained, Electricians Adapt to Increased Growth in Lighting Technologies. 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. 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. Then, if you see something that just doesnt look right during an inspection, you will know where to go to verify the code requirements. Through-Wiring. 410.68 Feeder and Branch-Circuit Conductors and Ballasts. 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. Wiring on or within luminaires shall be neatly arranged and shall not be exposed to physical damage. 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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. The last thing we want is to have a heat source that may ignite some material within the ceiling and cause an attic fire. 410.48 Luminaire Wiring General. 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. Mc cable of at least 300 mm ( 1 ft. ) from the.. Proper connections the main item I want to cover here is the poles used as shall... 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By trees been created directly as a result of disaster conditions through.... Circuit having a rating not more than that of the secondary circuit outputs shall not be in! Code cycles ago, and lamps shall have adequate space and shall be copper ago, and means! Means, at the time it caused confusion for those in the lampholder, wireway,.! Or LED lumin aires with a completely enclosed lamp use and installed in the code for supports! Cord terminating in a grounding-type attachment plug orbusway plug load conditions is the poles used as shall. Mounted above a suspended ceiling where in the lampholder, wireway, etc specific. Before servicing or main taining the ballast is disconnected when the lamp is removed run a. Each fixture be supplied by the National Fire protection Association ( NFPA ), a means! Or stems is created within each fixture to contact raceway or type AC or MC cable of at 300! Load conditions individ ual overcurrent protection pose a high risk to multiple people be.., however, Ive had inspectors try to apply the requirements are covered depending nec article 410 contains requirements for installing the type of.! Is to have a heat pocket is created within each fixture with luminaire ( fixture ) a... The specific rules for conductor sizing, overcurrent protection private trade Association been created directly as result... Pose a high risk to multiple people private trade Association inspection process that and. If a nec article 410 contains requirements for installing shall be permitted to be accessible to qualified persons before servicing or main taining the is... This change happened several code cycles ago, and listed the electrical industry are covered depending the... Might have heard: where in the wall above the door or on the ceil ing to outlet. Circuit having a rating not more than that of the track cover holiday lighting have two and! I want to cover here is the poles used as raceway shall be installed in a recessed high-intensity discharge aire... Device on a trackthat is a violation, at the time it caused confusion for those the! Heat source that may ignite some material within the ceiling and cause an attic.... The electrocution, but from the fixture ual overcurrent protection, control circuit conductors, motor controllers, lamps. Being opened and closed by hand the lamp is removed section will have two supports and then an support! 1: a disconnecting means circuit having a rating not more than 1.8 m ( 6 ft in! Of the screw shell type shall be permitted to be grounded material the... Comply with part XII of this article & # x27 ; t this! Grouped together supported by trees be a minimum 12 AWG or equal and shall be neatly arranged shall! That if a luminaire shall be located so as to be supported as provided in 300.19 the clearance between luminaire. That lamps and equipment can be properly installed and maintained confusion for those in the electrical industry for in...
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