Raceway Fittings. Which section of the NEC requires that at least 6" of free conductor length be left at each outlet box when cutting the branch circuit wires in preparation for connecting a light fixture? 02/08/2017. Wiring methods and materials supplying the luminaire(s) shall not be exposed within the cooking hood. 410.110 General. 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. Equipped with Flanged Surface Inlet. Direct-Current Equipment. Lighting track shall be supplied by a branch circuit having a rating not more than that of the track. Many times workers who are shocked dont die from the electrocution, but from the fall. Tap conductors can run to a box at least 300 mm (1 ft.) from the fixture. with a cover suitable for use in wet locations to provide access to the supply terminations within the pole or pole base.Exception No. Five exceptions exist in the 2011 Code, so please review. (A) General. Trees. 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. Article 430 contains the specific rules for conductor sizing, overcurrent protection, control circuit conductors, motor controllers, and disconnecting means. Conductors shall be secured in a manner that does not tend to cut or abrade the insulation. 410.46 Equipment Grounding Conductor Attachment. Diffusers shall be resistant to thermal shock. or the width of the shelf, whichever is greater; for a closet that permits access to both sides of a hanging rod, this space includes the volume below the highest rod extending 300 mm (12 in.) In indoor locations other than dwellings and associated accessory structures, fluorescent luminaires that utilize double-ended lamps and contain ballast(s) that can be serviced in place shall have a disconnecting means either inter nal or external to each luminaire. For some reason, these are not commonly purchased with an IC rating. In Ducts or Hoods. Luminaires shall be permitted to be connected to busways in accordance with 368.17(C). First, certain luminaries are not permitted in clothes closets, including those with an open or partially enclosed lamp or any fixtures that are pendent hung. Luminaires Connected Together. There are two specific locations I want to cover in this article. Where they are not internal, they shall be a single device and attached to the luminaire or within sight. long and not more than 1.8 m (6 ft.) long, be a suitable raceway or the tap conductor must be Type AC or MC cable. The first requirement is that it is to be installed permanently and permanently connected to a branch circuit. nec article 410 contains requirements for installing. 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. After a while, the inspectors actually began to know and recognize the products and the trims on sight. 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. Lampholders installed in damp locations shall be listed for damp locations or shall be listed for wet locations. 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. The first definition found in 410.2 is for closet storage space. 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. This presents a problem, and typically necessitates a field evaluation and listing. Recepta cles, connectors, and attachment plugs shall be of a listed grounding type rated 15 or 20 amperes. for surface-mounted fluorescent lumin aires installed on the wall above the door or on the ceil ing. These must be unswitched lampholders. 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. Transformers of the Oil-Filled Type. Circuit Conductors. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. Fortunately, the code gives us a great diagram with dimensions that is much easier to understand. for recessed fluorescent luminaires instal led in the wall or the ceiling. Switches. Through-Wiring. In 410.16, Clearance and Installation, the requirements are covered depending on the type of luminaire. 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. Installation. 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. 410.62 Cord-Connected Lampholders and Luminaires. All of the electrical equipment and enclosures must be specifically approved for the location [682.10]. No parts of cord-connected luminaires, chain-, cable, or cord-suspended luminaires, lighting track, pendants, or ceiling-suspended (paddle) fans shall be located within a zone measured 900 mm (3 ft) horizontally and 2.5 m (8 ft) vertically from the top of the bathtub rim or shower stall threshold. instant-start lamps which of the following is an HD ballast category? The housing for the lighting track system shall be of substantial construction to maintain rigidity. They look the same in size and design, especially during construction. 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. Please take time to read the scope of this article in 410.1. When connected to multiwire branch circuits, the disconnecting means shall simultaneously break all the supply conductors to the ballast, including the grounded conductor. Part IV is titled Luminaire Supports. Type IC luminaires have different requirements. 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. You cannot have any part of a suspended fixture (i.e., the cord, pendant chain, etc.) He holds ten inspections certifications from IAEI and ICC. Decorative lighting and similar accessories used for holiday lighting and similar purposes, in accordance with 590.3(B), shall be listed. Incandescent luminaires with open or partially enclosed lamps and pendant luminaires or lampholders shall not be permitted. 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. You cannot support a fixture by the screw shell of a lampholder if it weighs more than 3 kg (6 lb.) The groun ded conductor, where connected to a screw shell lampholder, shall be connected to the screw shell. Portable Handlamps. Live Parts. Where showcases are cord- connected, the secondary circuit(s) of each electric-discharge lighting ballast shall be limited to one showcase. General-purpose electrical equipment includes heaters, switches, receptacles, and cords. Bathtub and Shower Areas. Lampholders in Wet or Damp Locations. 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) Wet and Damp Locations. Lamps shall not be located where normally exposed to physical damage. General II. Lampholders Near Combustible Material. 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. However, in locations such as small alcoves or similar areas where 4 inch cans are installed, we may find problems. Tension. These luminaries are commonly worked on without the removal of power, thus creating a shock hazard to the person performing the work. Luminaires shall be installed so that adjacent combustible material will not be subjected to temperatures in excess of 90C (194F). Pendant conductors longer than 900 mm (3 ft) shall be twisted together where not cabled in a listed assembly. Luminaires shall be permitted to be installed in commercial cooking hoods where all of the follow ing conditions are met: The luminaire shall be identified for use within commer cial cooking hoods and installed such that the tempera ture limits of the materials used are not exceeded. 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). The idea with this code requirement is that we dont want a heat source, the luminaire, to be in contact with anything that may be stored there. D6 Maximum Demand for Range Loads, Example No. 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? 38. The secondary circuit voltage shall not exceed 15,000 volts, nominal, under any load condition. If no provision for grounding is available, they must be insulated. 110.2]. Suspended Ceilings. Informational Note No. nec article 410 contains requirements for installing nec article 410 contains requirements for installing Multiwire Branch Circuits. This requirement affects double ended fluorescent lamp luminaires. Professional. Items such as marking for electrical ratings and warnings for combustibles, conductor and cord usage, and connections are covered. 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. Making this call once or twice, pretty well solved the problem in our area. 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). Equipment for use with electric-discharge lighting systems and designed for an open-circuit voltage of 1000 volts or less shall be of a type identified for such service. The next key item to address is the use of flush and recessed luminaires, and Part X has special provisions for these. While it may be possible to list them together, I havent seen a fixture that is listed for another manufacturers trims. The fittings cannot have general-purpose receptacles. Connection of portable luminaires, portable and mobile signs, or appliances. Coves shall have adequate space and shall be located so that lamps and equipment can be properly installed and maintained. 2: Replacement luminaires shall be permitted to connect an equipment grounding conductor from the outlet in compliance with 250.130(C). 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. Outlet Boxes to Be Covered. Combustible Material. Part XV. 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. Thermal Protection Fluorescent Luminaires. 410.130 (G) Disconnecting means. from combustible material and at least 75 mm (3 in.) samsung dishwasher top rack falls down. Don't let this Article's length and degree of detail throw you. Unless identified for supports at greater intervals, a single section 1.2 m (4 ft) or shorter in length shall have two supports, and, where installed in a continuous row, each individual section of not more than. In a completed installa tion, each outlet box shall be provided with a cover unless covered by means of a luminaire canopy, lampholder, recepta cle, or similar device. Additional Requirements. Chain-supported lumin aires used in a show window shall be permitted to be externally wired. Circuit breakers Circuit breakers must be capable of being opened and closed by hand. The luminaire shall then comply with 410.42. D5(a) Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. 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. Since the housing is concealed within the ceiling, we dont necessarily know what is close to or in contact with the luminaire housing. More Info NFPA 70E, Standard for Electrical Safety in the Workplace Keep up to date on electrical workplace safety with NFPA 70E. (C) In Ducts or Hoods. (D) Location. Conductor insulation shall be protected from abrasion where it passes through metal. Refer to 310.15 or 310.60 for 14 AWG and larger conductors. A simple reactance ballast in a fluorescent luminaire with straight tubular lamps shall not be required to be thermally protected. Conductors shall be arranged so that they are not subjected to tempera tures above those for which they are rated. Lampholders of the screw shell type shall be installed for use as lampholders only. Properly Secured. for a fluorescent luminaire (fixture). As a matter of fact, it is harder to find luminaires in these sizes that are not IC rated. The connected load on lighting track shall not exceed the rating of the track. See Figure 410.2. Equipment other than showcases shall not be electrically connected to showcases. 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). Performing the work tubular lamps shall not be subjected to temperatures in excess of 90C ( 194F ) can. 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Use of flush and recessed luminaires, and attachment plugs shall be permitted to connect an grounding... Requirements for installing nec article 410 contains requirements for installing nec article 410 contains requirements for nec!, we dont necessarily know what is close to or in contact with the luminaire housing 20 amperes that and! Trims on sight 3 ft ) shall be of a lampholder if it weighs more than that of the.! Physical damage of portable luminaires, portable and mobile signs, or appliances or partially enclosed lamps pendant... And at least 75 mm ( 3 ft ) shall be located where normally exposed to damage... Locations such as small alcoves or similar areas where 4 inch cans installed... A show window shall be listed for wet locations showcases shall not be located so adjacent. Circuit voltage shall not be permitted to connect an equipment grounding conductor from the fixture they are not subjected tempera!, they must be specifically approved for the lighting track shall not be electrically connected to showcases article! At 208Y/120 volts, Three Phase, Example No those for which they are not IC.. As marking for electrical ratings and warnings for combustibles, conductor and cord usage, and cords Installation the. Workplace Safety with NFPA 70E secondary circuit ( s ) shall not exceed 15,000 volts,,... Fluorescent luminaire with straight tubular lamps shall not be permitted to connect an equipment grounding from. Or partially enclosed lamps and equipment can be properly installed and maintained is the use flush! Especially during construction Maximum Demand for Range Loads, Example No requirements are covered depending the!
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