Exposed metal parts shall be connected to an equipment grounding conductor or insulated from the equipment grounding conductor and other conducting surfaces or be inaccessible to unqualified personnel. The separation between cases is not in excess of 50 mm (2 in. Randy Hunter is an instructor and consultant specializing in electrical code and installations, and co-owner of Hunter Technical Services. D2(b) Optional Calculation for One-Family Dwelling, Air Conditioning Larger than Heating [See 220.82(A) and 220.82(C)], Example No. for surface-mounted fluorescent lumin aires installed on the wall above the door or on the ceil ing. This presents a problem, and typically necessitates a field evaluation and listing. Cord Requirements. 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. NEC Article 410 contains requirements for installing _____. 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. Part XII. Connection of utilization equipment to facilitate frequent interchange. Therefore, a requirement was added to include a lens to prevent this occurrence. Raceway Fittings. One category that is a fairly new concern is indoor sports, mixed use and all-purpose facilities that may utilize mercury vapor or metal halide lamps. Additional Requirements. Portable handlamps shall not be required to be grounded where supplied through an isolating transformer with an ungrounded secondary of not over 50 volts. Such tap conductors shall be in suitable raceway or Type AC or MC cable of at least 450 mm (18 in.) Temperature. There are requirements and exceptions listed in the Code for these supports. Some of the "quick" requirements include: The authority having jurisdiction (AHJ) must approve all electrical conductors and equipment [Sec. All wiring must be in rigid conduit or threaded steel intermediate metal conduit and will need to have seal fittings installed per 501.15 (A). The line side terminals of the disconnecting means shall be guarded.Exception No. 1.2 m (4 ft) in length shall have one additional support. Connected Load. He holds ten inspections certifications from IAEI and ICC. Article 411 addresses lighting systems operating at 30V or less. The luminaires shall be marked for dc operation. Conductors shall be secured in a manner that does not tend to cut or abrade the insulation. Conductors that have insulation suitable for the temperature encountered shall be used. Luminaire Studs. Busways. Live Parts. 410.44 Methods of Grounding. Raceway fittings used to support a luminaire(s) shall be capable of supporting the weight of the complete fixture assembly and lamp(s). Recessed Incandescent Luminaires. What about single pin lamps? Luminaires installed in corrosive locations shall be of a type suitable for such locations. 400.10 Uses Permitted (A) Uses Flexible cords and flexible cables shall be used only for the following: Pendants. In addition to complying with the general requirements for luminaires, such equipment shall comply with Part XII of this article. Electrical Level 1 - Chapter 26105-14. The last item I will cover in this article is Part XIV Lighting Track, or as it is more commonly called, track lighting. However, I challenge you to always open your code book and follow along with the article to get the whole story. XVI. 410.14 Luminaires in Show Windows. | 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. Canopies and outlet boxes taken together shall provide sufficient space so that luminaire conductors and their connecting devices are capable of being installed in accordance with 314.16. The housing for the lighting track system shall be of substantial construction to maintain rigidity. Luminaires shall be wired with conductors having insulation suitable for the environmental conditions, current, voltage, and temperature to which the conductors will be subjected. Part X. No other externally wired luminaires shall be used. However, Ive had inspectors try to apply the requirements for closets in 410 to other locations. Mechanical connection to an equipment grounding conductor in accordance with Sections 250.118 and 250.122. Exception No. When connected to multiwire branch circuits, the disconnecting means shall simultaneously break all the supply conductors to the ballast, including the grounded conductor. The luminaire (fixture) construction must ensure that the combustible material will not be subjected to temperatures over 194F. Unless part of listed decorative lighting assemblies, pendant conductors shall not be smaller than 14 AWG for mogul-base or medium-base screw shell lampholders or smaller than 18 AWG for intermediate or candelabra-base lampholders. Equipment that has an open- circuit voltage exceeding 1000 volts shall not be installed in or on dwelling occupancies. 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. instant-start lamps which of the following is an HD ballast category? 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. Installation. 1: A disconnecting means shall not be required for luminaires installed in hazardous. Im not going to cover every one of these items in detail, but please be aware that units installed in wet or damp locations have to be listed for the appropriate location and should prevent water from entering a wiring compartment. 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. Independent of the Outlet Box. You might ask why this requirement applies to double ended lamp units only. Luminaires listed and marked for use as a raceway shall be permitted to be used as a raceway. Electric-Discharge Lamp Auxiliary Equipment. Wiring methods and materials supplying the luminaire(s) shall not be exposed within the cooking hood. 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. Chapter 3: Wiring Methods and Materials. Location. For some reason, these are not commonly purchased with an IC rating. Parts that must be removed for lamp replacement shall be hinged or held captive. Several codes regulate the use of artificial lighting. Conductors shall be arranged so that the weight of the luminaire or movable parts does not put tension on the conductors. 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. Open-Circuit Voltage Exceeding 300 Volts. Auxiliary equipment for electric-discharge lamps shall be enclosed in noncombustible cases and treated as sources of heat. 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. nec article 410 contains requirements for installing That is how is was permitted as well. Portable luminaires shall be wired with flexible cord recognized by 400.4 and an attachment plug of the polar ized or grounding type. Special Provisions for Flush and Recessed Luminaires (Fixtures). The NEC Wiki|powered by theWikiWP theme andWordPress. 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). Connection of Electric-Discharge and LED Luminaires. Now we know the locations that we are allowed to install the luminaire related to the defined storage area. Article 410 provides the requirements for installing luminaires, lampholders, lamps, and decorative lighting products on circuits greater than 30V. Support. All of the electrical equipment and enclosures must be specifically approved for the location [682.10]. 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. 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. for recessed incandescent or LED lumin aires with a completely enclosed light source installed in the wall or the ceiling. 150 mm (6 in.) XII. All recessed incandescent luminaires (fixtures) must have thermal protection. The NEC specifies a few requirements for outlet boxes, inspection, suspended ceilings, luminaire (fixture) studs, insulating joints, raceway fittings, busways, and trees. These luminaries are commonly worked on without the removal of power, thus creating a shock hazard to the person performing the work. 410.59 Cord-Connected Showcases. Luminaires installed in recessed cavities in walls or ceilings, including suspended ceilings, shall comply with 410.115 through 410.122. Handlamps shall be equipped with a handle of molded composition or other insulating material. 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. 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. Insulating joints that are not designed to be mounted with screws or bolts shall have an exterior metal casing, insulated from both screw connections. 410.52 Conductor Insulation. 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. Type. Multiwire Branch Circuits. General. 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. III. 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.) 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. Provisions at Luminaire (Fixture) Outlet Boxes, Canopies, and Pans, Temperature Limit of Conductors in Outlet Boxes, Covering of Combustible Material at Outlet Boxes, Connection of Electric-Discharge Luminaires (Lighting Fixtures). The first requirement is that it is to be installed permanently and permanently connected to a branch circuit. Wired with flexible cord recognized by 400.4 and an attachment plug of luminaire. Added to include a lens to prevent this occurrence lens to prevent this occurrence equipment enclosures! Such equipment shall comply with Part XII of this article marked for use as a raceway shall be No! To cut or abrade the insulation 1: a disconnecting means shall be permitted to be grounded supplied! Where supplied through an isolating transformer with an IC rating thus creating a hazard! For Flush and recessed luminaires ( Fixtures ) 1.2 m ( 4 ft ) in length shall one! Raceway shall be guarded.Exception No wired with flexible cord recognized by 400.4 an. 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And materials supplying the luminaire or movable parts does not tend to or.

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