2014 Code Language: 410.130 (G) Disconnecting means. 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. All rights reserved. General. Luminaires shall be permitted to be connected to busways in accordance with 368.17(C). Part IV is titled Luminaire Supports. (C) Luminaire (Fixture) Types Not Permitted. However, the requirements within this article are important to know and enforce. Lampholders installed in damp locations shall be listed for damp locations or shall be listed for wet locations. Cord Requirements. That zone is 3 feet horizontally and 8 feet vertically from the tub rim or the shower threshold. Voltage. 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. In addition to complying with the general requirements for luminaires, such equipment shall comply with Part XII of this article. 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. Secondary Conductors. 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. The installation requirements for motor control centers are covered in 110.26 (F), and air-conditioning and refrigerating equipment are covered in Article 440. Distributed Data Warehouse for Geo-spatial Services, Data Mining for Business Process Reengineering, Development of Interactive Web Sites to Enhance Police/Community Relations, Strategies for Information Technology Governance, Integration Strategies and Tactics for Information Technology Governance, An Emerging Strategy for E-Business IT Governance, Linking the IT Balanced Scorecard to the Business Objectives at a Major Canadian Financial Group, Measuring and Managing E-Business Initiatives Through the Balanced Scorecard, Governance in IT Outsourcing Partnerships, Documenting Software Architectures: Views and Beyond, What the C&C Viewtype Is For and What Its Not For, Making Sense of Change Management: A Complete Guide to the Models, Tools and Techniques of Organizational Change, Microsoft Office Visio 2007 Step by Step (Step By Step (Microsoft)), Creating Timelines to View Projects at a Glance. 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. Integral Thermal Protection. Keep in mind, inspectors often do not see these issues during our visits, but we can only inspect what is on the job when we are there. In addition to the provisions of 410.82(A), portable handlamps shall comply with the follow ing: Metal shell, paper-lined lampholders shall not be used. Don't let this Article's length and degree of detail throw you. (C) In Ducts or Hoods. In Part III of 410, we cover mainly outlet boxes and canopies for luminaires. Provisions at Luminaire Outlet Boxes, Canopies, and Pans. 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. Luminaires shall be constructed, installed, or equipped with shades or guards so that combustible material is not subjected to temper atures in excess of 90C (194F). General II. Metallic guards shall be grounded by means of an equip ment grounding conductor run with circuit conductors within the power-supply cord. Luminaires installed in corrosive locations shall be of a type suitable for such locations. Rating. Equipment schedules are important, and one should ask for an equipment schedule during the plan review process, to make sure of what is taking place inside the extraction room and also the surrounding areas. 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. constant wattage autotransformer Wiring Supplying Luminaires (Fixtures) Connected Together, VII. 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. Luminaires and equipment shall be mechanically connected to an equipment grounding conductor as specified in 250.118 and sized in accordance with 250.122. They had basically destroyed a manufactured product, and the manufacturer would no longer warranty that luminaire. Size. for an incandescent luminaire (fixture) and 150 mm (6 in.) Recessed Incandescent Luminaires. The NEC Wiki|powered by theWikiWP theme andWordPress. Equipment other than showcases shall not be electrically connected to showcases. 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). Special Provisions for Flush and Recessed Luminaires. General. Luminaires that use a metal halide lamp other than a thick-glass parabolic reflector lamp (PAR) shall be provided with a containment barrier that encloses the lamp, or shall be provided with a physical means that only allows the use of a lamp that is Type O.Informational Note: See ANSI Standard C78.389, General. General-purpose electrical equipment includes heaters, switches, receptacles, and cords. However, in locations such as small alcoves or similar areas where 4 inch cans are installed, we may find problems. 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. D5(a) Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. Splices and Taps. Lamphold ers shall be constructed, installed, or equipped with shades or guards so that combustible material is not subjected to temper atures in excess of 90C (194F). 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. One additional 2-wire branch circuit separately supplying one or more of the connected luminaires shall also be permit ted. Pendant conductors longer than 900 mm (3 ft) shall be twisted together where not cabled in a listed assembly. Live Parts. Stranding. Several codes regulate the use of artificial lighting. 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. Part XII. Portable handlamps shall not be required to be grounded where supplied through an isolating transformer with an ungrounded secondary of not over 50 volts. Switches. You cannot support a fixture by the screw shell of a lampholder if it weighs more than 3 kg (6 lb.) 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. Where the disconnecting means is external to the luminaire, it shall be a single device, and shall be attached to the luminaire or the luminaire shall be located within sight of the disconnecting means. Decorative lighting and similar accessories used for holiday lighting and similar purposes, in accordance with 590.3(B), shall be listed. This was an inspection item which often resulted in a rejected final, due to luminaire substitutions, the wrong luminaire being used for that location, or modifications to the closet that changed the shelf location. Luminaires installed on dc circuits shall be equipped with auxiliary equipment and resistors designed for dc operation. Article 110 of the National Electrical Code (NEC) covers the general requirements for the examination and approval, installation and use, access to, and spaces about electrical equipment. In addition to complying with the general requirements for luminaires, such equipment shall comply with Part XIII of this article. Luminaires over Combustible Material. 4: A disconnecting means shall not be required in industrial establishments with restricted public access where conditions of maintenance and supervision ensure that only qualified persons service the installation by written procedures. Lampholders of the screw shell type shall be installed for use as lampholders only. Wiring of luminaires. in length and intended to facilitate the connection to an outlet box mounted above a suspended ceiling. 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. Therefore, a requirement was added to include a lens to prevent this occurrence. 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. Article 430 contains the specific rules for conductor sizing, overcurrent protection, control circuit conductors, motor controllers, and disconnecting means. Heres a question you might have heard: where in the code do we cover holiday lighting? No Other Equipment. Excess wiring shall be avoided. You may need to comply with more stringent requirements for lights than those contained in Article 410. First is the requirement for properly sized handholes, which allows the installer to make the circuit conductor connections and most importantlythe grounding connections. 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? Fastening. 1: See 225.26 for restrictions for support of overhead conductors. instant-start lamps which of the following is an HD ballast category? Live Parts. Support. The switch or circuit breaker shall be located within sight from the luminaires or lamps, or it shall be permitted to be located elsewhere if it is lockable in accordance with 110.25. Components of lighting track systems of different voltages shall not be inter changeable. 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. Marking. I should mention here that we use the term luminaires as a more international reference to lighting fixtures. Normally, luminaires (fixtures) cannot be used as raceways. Luminaires Near Combustible Material. 410.59 Cord-Connected Showcases. Luminaires shall be securely fastened to the ceiling framing member by mechanical means such as bolts, screws, or rivets. Electric-discharge and LED luminaires surface mounted over concealed outlet, pull, or junction boxes and designed not to be supported solely by the outlet box shall be provided with suitable openings in the back of the luminaire to provide access to the wiring in the box. (c)Listed luminaires connected using listed assemblies. Instant start lamps Which of the following is an HID ballast category? One important requirement to note is that a fixture can be supported from an outlet box if the outlet box is required by 314.23 and complies with 314.27(A) and 314.27(B). If you see a cord plugged into a device on a trackthat is a violation. 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. Corrosive Locations. (12.7mm) from combustible materials. (A) General. D6 Maximum Demand for Range Loads, Example No. Portable luminaires shall be wired with flexible cord recognized by 400.4 and an attachment plug of the polar ized or grounding type. I will not cover each of these here, please review them on your own so that you will be aware of what is in this part of the code. 410.40 General. Trees. This term is not to be confused with luminary, which is defined as an important person. The luminaires shall be marked for dc operation. Secondary Circuit(s). 410.54 Pendant Conductors for Incandescent Filament Lamps. Luminaire Studs. 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. 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. Branch-circuit conductors that have an insulation suitable for the temperature encountered shall be permitted to terminate in the luminaire. As we all know, heat rises, and a heat pocket is created within each fixture. These buildings concern unique environments that pose a high risk to multiple people. Prescriptive steps for connecting and disconnecting are provided and must be provided on the equipment. 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. Fortunately, the code gives us a great diagram with dimensions that is much easier to understand. 2: No handhole shall be required in a pole 6.0 m (20 ft) or less in height abovegrade that is provided with a hinged base. Fixtures and lampholders must be securely supported. Access to Boxes. for a fluorescent luminaire (fixture). Part III. 410.84 Cord Bushings. The free lead at the end of a group of showcases has a female fitting not extending beyond the case. The last item I will cover in this article is Part XIV Lighting Track, or as it is more commonly called, track lighting. Luminaire Stems. For example, if the illumination equipment is in a hazardous location, apply Articles 500 through 517. (D) Bathtub and Shower Areas. Suspended Ceilings. After a while, the inspectors actually began to know and recognize the products and the trims on sight. 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. Enclosures. Fire-Resistant Construction. 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. Another requirement is that track fittings are not to be equipped with general purpose receptacles, which would make them more like a branch circuit. However, Ive had inspectors try to apply the requirements for closets in 410 to other locations. Additional Requirements. Transformers shall be enclosed, identified for the use, and listed. Busways. Installation. You might ask why this requirement applies to double ended lamp units only. 410.56 Protection of Conductors and Insulation. (B) Luminaire (Fixture) Types Permitted. Metal or Nonmetallic Poles Supporting Luminaires. 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 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. This restriction is not required if the luminaire (fixture) is installed in poured concrete and is approved for this use or when the luminaire (fixture) by construction design provides characterisitics that are equivalent to thermally protected characteristics, and are identified as such. Connecting and disconnecting means have heard: where in the Luminaire flexible cord recognized by and... 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Luminaire outlet boxes and canopies for luminaires for luminaires of an equip ment grounding conductor run circuit.
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