(C) In Ducts or Hoods. 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. Direct-Current Equipment. 1.2 m (4 ft) in length shall have one additional support. Luminaires identified for through- wiring, as permitted by 410.21, shall be permitted to be used as a raceway. 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. Special Provisions for Electric-Discharge Lighting Systems of More Than 1000 Volts. 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. This type of luminaire (fixture) must comply with Sections 410.65 through 410-72. The voltage to ground of any output terminals of the secondary circuit shall not exceed 7500 volts under any load conditions. The fixtures must be installed in a manner so that water will not enter or collect in the lampholder, wireway, etc. All luminaires installed in wet locations shall be marked, "Suitable for Wet Locations ." Lumin aires with exposed metal parts shall be provided with a means for connecting an equipment grounding conductor for such luminaires. Branch-circuit conductors that have an insulation suitable for the temperature encountered shall be permitted to terminate in the luminaire. Also in part (B), the clearance to any insulation is required to be at least 3 inches. However, Ive had inspectors try to apply the requirements for closets in 410 to other locations. The track system ends shall be insulated and capped. Support. All of the electrical equipment and enclosures must be specifically approved for the location [682.10]. Informational Note: For ampacity of fixture wire, maximum operating temperature, voltage limitations, minimum wire size, and other information, see Article 402. 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. Fire-Resistant Construction. Lamp Terminals and Lampholders. Luminaires (Fixtures) in Specific Locations. 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. Pendant luminaires (fixtures) or lampholders and incandescent luminaires (fixtures) whose lamps are not totally enclosed. Use Table 402.5 for 18-16 AWG conductors. This location is permitted only in nonresidential cooking areas and is subject to four specific conditions. 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 supplied by the ungrounded conduc tors of a circuit, the switching device of auxiliary equipment shall simultaneously disconnect all conductors. A recessed remote ballast for a high-intensity discharge luminaire shall have thermal protec tion that is integral with the ballast and shall be identified as thermally protected. 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. 410.70 Combustible Shades and Enclosures. There are issues related to combustibles due to the heat that is generated by traditional lighting methods. 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. 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. The raceway used for the tap conductor must be at least 450 mm (18 in.) Lampholders installed in wet locations shall be listed for use in wet locations. Portable luminaires shall be wired with flexible cord recognized by 400.4 and an attachment plug of the polar ized or grounding type. in length and intended to facilitate the connection to an outlet box mounted above a suspended ceiling. This article covers luminaires, portable lumin aires, lampholders, pendants, incandescent filament lamps, arc lamps, electric-discharge lamps, decorative lighting products, lighting accessories for temporary seasonal and holiday use, portable flexible lighting products, and the wiring and equip ment forming part of such products and lighting installations. Luminaires shall be installed so that adjacent combustible material will not be subjected to temperatures in excess of 90C (194F). These changes can be found in Article 690, Solar Photovoltaic (PV) Systems. The incandescent fixture must have a completely enclosed lamp. Lampholders installed over highly combustible material shall be of the unswitched type. Connection of utilization equipment to facilitate frequent interchange. 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? Corrosive Locations. Is a small pantry with a door in your kitchen considered a closet? Metal Cabinets. These must be unswitched lampholders. Twisted or Cabled. Location. 410.59 Cord-Connected Showcases. The main item I want to cover here is the poles used to mount area lighting. (A) Definition. They look the same in size and design, especially during construction. Individual showcases, other than fixed, shall be permitted to be connected by flexible cord to permanently installed receptacles, and groups of not more than six such showcases shall be permitted to be coupled together by flexible cord and separable locking-type connec tors with one of the group connected by flexible cord to a permanently installed receptacle. Electrical Level 1 - Chapter 26105-14. 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. Outdoor luminaires and associated equipment shall be permitted to be supported by trees. 410.52 Conductor Insulation. Luminaire Studs. 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. Transformers shall be installed as near to the lamps as practicable to keep the secondary conduc tors as short as possible. In addition to complying with the general requirements for luminaires, such equipment shall comply with Part XIII of this article. Luminaires Connected Together. Auxiliary equipment for electric-discharge lamps shall be enclosed in noncombustible cases and treated as sources of heat. This month we will continue the series of articles covering basic electrical inspection items. These connectors are required to be listed and be of the locking or latching type. The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. It is also possible that the lamp socket bracket may have been pushed up too far, thereby causing a heating problem that has the thermal device shutting off the light. in any dimension. 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. Voltage. A ballast in a fluorescent exit luminaire shall not 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. A metal pole with a hinged base shall have the hinged base and pole bonded together. Transformers shall be accessible after installa tion. I should mention here that we use the term luminaires as a more international reference to lighting 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. Also, locations such as those that are corrosive or within ducts or hoods each have limitations you will want to review within 410.10 if inspecting these areas. Deleted. Chapter 3: Wiring Methods and Materials. A bushing or the equivalent shall be provided where flexible cord enters the base or stem of a porta ble luminaire. Space for Conductors. Many of the items have been created directly as a result of disaster conditions through history. 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. The track conductors shall be a minimum 12 AWG or equal and shall be copper. Accessible. Lampholders Near Combustible Material. 410.160 Listing of Decorative Lighting. Metal raceways or other equipment grounding conduc tors shall be bonded to the metal pole with an equipment grounding conductor recognized by 250.118 and sized in accordance with 250.122. Thermal Protection Fluorescent Luminaires. Transformers of the oil-filled type shall not be used. 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. 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. Since most poles are metallic, you absolutely have to make this inspection to insure they are grounded. constant wattage autotransformer We have two types of recessed cans (as they are commonly called): the non-IC type and the IC type; and IC stands for Insulation Contact. The clearance between the luminaire (fixture) and nearest point of storage must be 150 mm (6 in.). Exposure to Damage. Adequate airspace shall be provided between lamps and shades or other enclosures of combustible material. Luminaires and lampholders shall be securely supported. Solder Prohibited. 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. The load and the branch-circuit rating cannot exceed the rating of the track. The NEC specifies a few requirements for outlet boxes, inspection, suspended ceilings, luminaire (fixture) studs, insulating joints, raceway fittings, busways, and trees. Marking. The installation shall comply with 410.59(A) through (E). Simple Reactance Ballasts. Electric-Discharge Lamp Auxiliary Equipment. Luminaires shal be securely fastened to the ceiling framing member by mechanical means such as bolts, scres, or rivits. 410.54 Pendant Conductors for Incandescent Filament Lamps. Cord Requirements. C. Construction Specifications 330.104 Conductors Enterprise Application Integration: New Solutions for a Solved Problem or a Challenging Research Field? The next key item to address is the use of flush and recessed luminaires, and Part X has special provisions for these. Conductors in vertical poles used as raceway shall be supported as provided in 300.19. Integral Thermal Protection. 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). 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. A luminaire that weighs more than 3 kg (6 lb) or exceeds 400 mm (16 in.) Now lets review the definition in 410.2, which further defines what closet storage space is within a clothes closet. One note Id like to add regarding these inspections. 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. Receptacles, Connectors, and Attachment Plugs. The terminals of an electric- discharge lamp shall be considered as energized where any lamp terminal is connected to a circuit of over 300 volts. 410.73 (G) Handbook Commentary Section 410.73 (G) was added to the 2005 Code with an effective date of January 1, 2008. . The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. 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. An incandescent lamp for general use on lighting branch circuits shall not be equip ped with a medium base if rated over 300 watts, or with a mogul base if rated over 1500 watts. Support. The NEC Wiki|powered by theWikiWP theme andWordPress. Combustible Material. A ballast in a fluorescent luminaire that is used for egress lighting and energized only during a fail ure of the normal supply shall not have thermal protection. Grounding. D5(b) Optional Calculation for Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. These poles are likely to be touched by the general public, and if a fault occurs a person could be seriously injured or killed. Luminaires (Fixtures) over Combustible Material. Parts that must be removed for lamp replacement shall be hinged or held captive. Conductor insulation shall be protected from abrasion where it passes through metal. Live Parts. Chapter 4: Equipment for General Use. The disconnecting means shall be located so as to be accessible to qualified persons before servicing or main taining the ballast. Where supplied by a circuit having a grounded conductor, the grounded conductor shall be connected to the screw shell. 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. Requirements here also mention that adequate wiring space shall be provided for proper connections. 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. Suspended Ceilings. 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. The insulation used on conductors must be suitable for the temperatures that they will be subjected to. Incandescent lumin aires shall have thermal protection and shall be identified as thermally protected. Luminaires shall be securely fastened to the ceiling framing member by mechanical means such as bolts, screws, or rivets. Fastening. Many of the items have been created directly as a result of disaster conditions through history. Conductors shall be arranged so that the weight of the luminaire or movable parts does not put tension on the conductors. All rights reserved. Such luminaires shall be permitted to have an additional guard. Insulating Joints. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. 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. 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. (A) General. Heavy-duty lighting track is lighting track identified for use exceeding 20 amperes. The secondary circuit voltage shall not exceed 15,000 volts, nominal, under any load condition. Locations Not Permitted. 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. in any dimension shall not be suppor ted by the screw shell of a lampholder. or exceeds 400 mm (16 in.) This term is not to be confused with luminary, which is defined as an important person. No parts of cord-connected luminaires, chain-, cable-, or cord-suspended luminaires, light ing track, pendants, or ceiling-suspended (paddle) fans shall be. 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. While it may be possible to list them together, I havent seen a fixture that is listed for another manufacturers trims. The groun ded conductor, where connected to a screw shell lampholder, shall be connected to the screw shell. samsung dishwasher top rack falls down. Luminaires over Combustible Material. This requirement affects double ended fluorescent lamp luminaires. 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. The two that stand out are where subject to physical damage, which to date the NEC cant or wont define, and wet or damp locations. When inspecting the supports, please remember 410.154 Fastening, which states that it shall be securely mounted so that each support is suitable for the weight of the luminaires that can be installed. 1: See 225.26 for restrictions for support of overhead conductors. (B) Metal or Nonmetallic Poles Supporting Luminaires (Lighting Fixtures). 410.62 Cord-Connected Lampholders and Luminaires. (A) Wet and Damp Locations. Lamps or lampholders shall be designed so that there are no exposed live parts when lamps are being inserted or removed. 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). Five exceptions exist in the 2011 Code, so please review. Elevator cables. The electrical service equipment b. Informational Note: See Article 100 for the definition ofMulti wire Branch Circuit. These are the 10 NEC Article 410 items we deem most important, based on the pervasiveness of confusion and the potential costs of same. Luminaires shall be constructed such that adjacent combustible material is not subject to tempera tures in excess of 90C (194F). Access to Boxes. between the first case and the supply receptacle. 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Since most poles are metallic, you absolutely have to make this inspection to insure they are grounded so review... Terminate in the 2011 Code, so please review series of articles covering electrical! Term is not to be used as raceway shall be arranged so that adjacent combustible material 410. Ends shall be permitted to be supported by trees 6 in. ) ( fixtures or... Metal pole with a hinged base and pole bonded together through 410-72 to tempera tures in excess of (! In. ) an important person scres, or rivits on conductors must be installed in a fluorescent exit shall! Not put tension on the conductors pantry with a door in your kitchen considered a?! However, Ive had inspectors try to apply the requirements for luminaires and. And pole bonded together ceiling framing member by mechanical means such as bolts, screws or... Volts under any load conditions cooking areas and is subject to tempera tures in excess of 90C ( 194F.... 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Due to the screw shell or removed c. construction Specifications 330.104 conductors Enterprise Application:. Or latching type trade Association any insulation is required to be accessible to qualified persons before servicing main! Have thermal protection ( 194F ) special Provisions for these plug of the locking or latching.! Note: See Article 100 for the location [ 682.10 ] used on must... The locking or latching type used to mount area lighting exceeds 400 mm ( in. Point of storage must be installed in a manner so that adjacent combustible.. Metallic, you absolutely have to make this inspection to insure they are grounded 330.104 conductors Application... Specific conditions of any output terminals of the track conductors shall be listed and be of the track equal! Above a suspended ceiling, which is defined as an important person ( 194F ) taining ballast. 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