Incandescent luminaires with open or partially enclosed lamps and pendant luminaires or lampholders shall not be permitted. Requirements for communications . In 410.16, Clearance and Installation, the requirements are covered depending on the type of luminaire. 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. Fittings identified for use on lighting track shall be designed specifically for the track on which they are to be installed. The equipment grounding conductor c. Incandescent lumin aires shall have thermal protection and shall be identified as thermally protected. 1: See 225.26 for restrictions for support of overhead conductors. Type IC. Circuit Conductors. Luminaires shall be permitted to be connected to busways in accordance with 368.17(C). Choose topics from a full list of courses covering electrical topics that cover what you need to know from the NEC and other electrical codes and standards. Type IC fixtures are designed to be installed in such a way that they may have insulation directly in contact with them. Other. Often we find shelves that hold cardboard boxes or garments that are easily ignited if in contact with a heat source. There are two specific locations I want to cover in this article. Metal Halide Lamp Containment. Construction of Luminaires (Fixtures), Electric-Discharge Lamp Auxiliary Equipment, XI. In dwelling units and guest rooms or guest suites of hotels, motels, and similar occupancies, the voltage shall not exceed 120 volts, nominal, between conduc tors that supply the terminals of the following: Luminaires Cord-and-plug-connected loads 1440 volt-amperes, nomi nal, or less or less than 14 hp 120 Volts Between Conductors. Informational Note: Combustible low-density cellulose fiber board includes sheets, panels, and tiles that have a density of 320 kg/m3(20 lb/ft3) or less and that are formed of bonded plant fiber material but does not include solid or laminated wood or fiberboard that has a density in excess of 320 kg/m3(20 lb/ft3) or is a material that has been integrally treated with fire-retarding chemicals to the degree that the flame spread index in any plane of the material will not exceed 25, deter mined in accordance with tests for surface burning characteris tics of building materials. (B) Metal or Nonmetallic Poles Supporting Luminaires (Lighting Fixtures). (B) Luminaire (Fixture) Types Permitted. Five exceptions exist in the 2011 Code, so please review. 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. The track system ends shall be insulated and capped. Exception No. Part XII. Luminaires shal be securely fastened to the ceiling framing member by mechanical means such as bolts, scres, or rivits. 02/08/2017. 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. Fastening. 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. Luminaires shall be installed so that adjacent combustible material will not be subjected to temperatures in excess of 90C (194F). Surface-mounted or recessed incandescent or fluorescent fixtures are permitted. Wiring methods and materials supplying the luminaire(s) shall not be exposed within the cooking hood. Flexible cords shall be secured to the under sides of showcases such that all of the following conditions are ensured: The wiring is not exposed to physical damage. 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. 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. (A) Definition. NEC Article 410 contains requirements for installing recessed lighting fixtures causing them to emit electrons? 2: See 300.5(D) for protection of conductors. 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. So at first, the contractor had to field install these devices, but eventually manufacturers started to ship units with the disconnects installed. However, the requirements within this article are important to know and enforce. 410.130 (G) Disconnecting means. Informational Note No. General. Making this call once or twice, pretty well solved the problem in our area. If no provision for grounding is available, they must be insulated. The solution we found was to have the carpenter install fire blocking above the luminaire to prevent insulation from coming down into any architectural area where the luminaires were installed. Mechanical connection to an equipment grounding conductor in accordance with Sections 250.118 and 250.122. Introductioin to the National Electrical Code. 3: Where no equipment grounding conductor exists at the outlet, replacement luminaires that are GFCI protected shall not be required to be connected to an equipment grounding conductor. Considered as Energized. Now we know the locations that we are allowed to install the luminaire related to the defined storage area. Integral Thermal Protection. Randy Hunter is an instructor and consultant specializing in electrical code and installations, and co-owner of Hunter Technical Services. 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. 150 mm (6 in.) from combustible material and at least 75 mm (3 in.) Bathtub and Shower Areas. Lighting track shall be supplied by a branch circuit having a rating not more than that of the track. 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. Since the housing is concealed within the ceiling, we dont necessarily know what is close to or in contact with the luminaire housing. between the first case and the supply receptacle. Such luminaires shall be permitted to have an additional guard. Lampholders Near Combustible Material. The electrical service equipment b. Many times workers who are shocked dont die from the electrocution, but from the fall. 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. Lamp tie wires, mount ing screws, clips, and decorative bands on glass spaced at least 38 mm (112in.) 410.50 Polarization of Luminaires. 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. Open-Circuit Voltage Exceeding 300 Volts. Chapter 5: Special Occupancies. Provided with Mogul-Base, Screw Shell Lampholders. These buildings concern unique environments that pose a high risk to multiple people. The line side terminals of the disconnecting means shall be guarded.Exception No. The luminaire shall be constructed so that all exhaust vapors, grease, oil, or cooking vapors are excluded from the lamp and wiring compartment. Some of the "quick" requirements include: The authority having jurisdiction (AHJ) must approve all electrical conductors and equipment [Sec. Part III. 410.14 Luminaires in Show Windows. Now lets review the definition in 410.2, which further defines what closet storage space is within a clothes closet. Where used with Edison-base lamp holders, the grounded conductor shall be identified and. It is permitted, however, if the luminaire (fixture) is listed for that use. 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. 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. Transformers shall be accessible after installa tion. Properly Secured. 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. The grounding terminations within the poles are often difficult to install and also inspect. D9 Feeder Ampacity Determination for Generator Field Control, Example No. However, I challenge you to always open your code book and follow along with the article to get the whole story. No solder shall be used in the construction of a luminaire recessed housing. 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. Part IV is titled Luminaire Supports. 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. Parts VI through IX deal with items generally covered by the manufacturers of the luminaires. Secondary Connections. Through-Wiring. nec article 410 contains requirements for installingcushion foundation case Wiring on or within luminaires shall be neatly arranged and shall not be exposed to physical damage. XVI. Fire-Resistant Construction. 410.52 Conductor Insulation. (C) In Ducts or Hoods. Therefore, these fixtures now require a disconnecting means. The NEC Wiki|powered by theWikiWP theme andWordPress. 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. Lamps or lampholders shall be designed so that there are no exposed live parts when lamps are being inserted or removed. Provisions at Luminaire Outlet Boxes, Canopies, and Pans. 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 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. Subject. The electrical rating shall include the voltage and frequency and shall indicate the current rating of the unit, including the ballast, transformer, LED driver, power supply, or autotransformer. Part XII Special Provisions for Electric-Discharge Lighting System of 1000 Volts or Less includes 410.130(G) Disconnecting Means. Where showcases are cord- connected, the secondary circuit(s) of each electric-discharge lighting ballast shall be limited to one showcase. A brief note regarding 410.18 Space for Cove Lighting: the code states that cove lighting shall have adequate space so that lamps and equipment can be properly installed and serviced. This includes cables, conductors, wiring devices, and others. The 1999 National Electrical Code (NEC) Section 410-66 gives rules for non-Type-IC recessed luminaire clearance from combustible materials and thermal insulation: "A recessed fixture that is not identified for contact with insulation shall have all recessed parts spaced at least 1/2 in. (C) Luminaire (Fixture) Types Not Permitted. Lampholders installed in damp locations shall be listed for damp locations or shall be listed for wet locations. XII. Live Parts. However, in locations such as small alcoves or similar areas where 4 inch cans are installed, we may find problems. Enclosures. Connected Load. 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. Auxiliary equipment for electric-discharge lamps shall be enclosed in noncombustible cases and treated as sources of heat. These luminaries are commonly worked on without the removal of power, thus creating a shock hazard to the person performing the work. D2(a) Optional Calculation for One-Family Dwelling Heating Larger than Air Conditioning [See Section 220.82], Example No. 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. 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. Fastened to the ceiling, we may find problems creating a shock hazard to the defined storage.. 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