Lamp tie wires, mount ing screws, clips, and decorative bands on glass spaced at least 38 mm (112in.) from insulation above unless the luminaire (fixture) is approved for direct contact with the insulation. Electric-discharge lighting systems with an open- circuit voltage exceeding 1000 volts shall be listed and installed in conformance with that listing. For some reason, these are not commonly purchased with an IC rating. General. Many times workers who are shocked dont die from the electrocution, but from the fall. Such tap conductors shall be in suitable raceway or Type AC or MC cable of at least 450 mm (18 in.) 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 definition found in 410.2 is for closet storage space. A luminaire assembly equipped with a strain reliefand canopy shall be permitted to use a cord connectionbetween the luminaire assembly and the canopy. 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. 02/08/2017. There are two specific locations I want to cover in this article. Part V reviews the grounding requirements and basically states that if a luminaire or lighting equipment has metal parts, it shall be grounded. Enclosures. Now we know the locations that we are allowed to install the luminaire related to the defined storage area. Stranding. The main item I want to cover here is the poles used to mount area lighting. 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. Chapter 4 of the National Electrical Code (NEC), Equipment for General Use, contains 22 articles. Exception No. All luminaires installed in wet locations shall be marked, "Suitable for Wet Locations." Lampholders of the screw shell type shall be of porcelain or other suitable insulating materials. This month we will continue the series of articles covering basic electrical inspection items. 410.90 Screw Shell Type. in any dimension shall not be suppor ted by the screw shell of a lampholder. Chapter 4: Equipment for General Use. If you are tasked with doing inspections for parking lot lighting, you need to be familiar with a few items. in length and intended to facilitate the connection to an outlet box mounted above a suspended ceiling. XII. Informational Note: See Article 100 for the definition ofMulti wire Branch Circuit. 1: Luminaires made of insulating material that is directly wired or attached to outlets supplied by a wiring method that does not provide a ready means for grounding attachment to an equip ment grounding conductor shall be made of insulating material and shall have no exposed conductive parts. If you install any electrical wiring or equipment in, or adjacent to, bodies of water not covered by other Articles in the NEC, the installation must conform to Article 682 [682.1]. Corrosive Locations. Lets examine the requirements of the NEC, IES, and other standards. Exposed accessible terminals in lampholders and switches shall not be installed in metal luminaire canopies or in open bases of portable table or floor luminaires.Exception: Cleat-type lampholders located at least 2.5 m (8 ft) above the. Construction of Flush and Recessed Luminaires (Fixtures), XIII. He holds ten inspections certifications from IAEI and ICC. 2: See 300.5(D) for protection of conductors. Remember that the canopy will be included in the volume requirement, so the box and the canopy together provide the space. Luminaires Near Combustible Material. No Other Equipment. Part XII. This often leads to problems, such as when we have special luminaires used inside casinos, hotels and other large facilities where the units are actually a piece of artwork with lights attached. The NEC specifies a few requirements for outlet boxes, inspection, suspended ceilings, luminaire (fixture) studs, insulating joints, raceway fittings, busways, and trees. This requirement affects double ended fluorescent lamp luminaires. If the ceiling height is adequate to allow a luminaire to be installed above the 8 foot zone, the luminaire must be listed for damp locations; if subject to shower spray, the luminaire must be listed for wet locations. These must be unswitched lampholders. Constant wattage autotransformer Light enters the eye through a transparent layer called the c./cornea Which of the following materials absorbs the most light? In this case, the power to the ballast is disconnected when the lamp is removed. Combustible Material. (C) Luminaire (Fixture) Types Not Permitted. 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. D5(a) Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. Circuit Conductors. D4(b) Optional Calculation for Multifamily Dwelling, Example No. A luminaire that weighs more than 3 kg (6 lb) or exceeds 400 mm (16 in.) Title. GET YOUR CEUS TODAY, 1998-2021. 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. You cannot have any part of a suspended fixture (i.e., the cord, pendant chain, etc.) 410.64 Luminaires as Raceways. D9 Feeder Ampacity Determination for Generator Field Control, Example No. 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. Within Sight or Locked Type. Disconnection. Properly Secured. You cannot support a fixture by the screw shell of a lampholder if it weighs more than 3 kg (6 lb.) 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. from combustible material and at least 75 mm (3 in.) Through-Wiring. 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. Lighting track shall be securely mounted so that each fastening is suitable for supporting the maximum weight of luminaires that can be installed. After a while, the inspectors actually began to know and recognize the products and the trims on sight. Conductors shall be secured in a manner that does not tend to cut or abrade the insulation. All luminaires installed in wet locations shall be marked, "Suitable for Wet Locations ." 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. However, the only requirements for luminarie installations in closets appear in section 410.16, which specifically addresses luminaires in clothes closets. The minimum clearance between luminaires installed in clothes closets and the nearest point of a closet stor age space shall be as follows: 300 mm (12 in.) nec article 410 contains requirements for installing nec article 410 contains requirements for installing All of the electrical equipment and enclosures must be specifically approved for the location [682.10]. Lampholders Near Combustible Material. Where showcases are cord- connected, the secondary circuit(s) of each electric-discharge lighting ballast shall be limited to one showcase. 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. Transformers of the Oil-Filled Type. Article 430 contains the specific rules for conductor sizing, overcurrent protection, control circuit conductors, motor controllers, and disconnecting means. NEC Section 410.130(F)(5) Tension. Type IC luminaires have different requirements. 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. Informational Note: For ampacity of fixture wire, maximum operating temperature, voltage limitations, minimum wire size, and other information, see Article 402. The code has a specific set of dimensions for storage space with an explanatory diagram. Surface-mounted luminaires (fixtures) can be installed on the wall above the door or on the ceiling. The insulation used on conductors must be suitable for the temperatures that they will be subjected to. Transformers shall be located so that adjacent combustible materials are not subjec ted to temperatures in excess of 90C (194F). Location. 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). 410.50 Polarization of Luminaires. Luminaire Types Not Permitted. Part III. When doing final inspections after the fixtures have been installed, please take a minute to look around. Luminaires installed on dc circuits shall be equipped with auxiliary equipment and resistors designed for dc operation. 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. 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. A means to connect an equipment ground must be provided for a metal luminaire (fixture). Scope. Wiring on or within luminaires shall be neatly arranged and shall not be exposed to physical damage. 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. 410.10 (D) Bathtub and Shower Areas. Busways. Separate Mounting. 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. The groun ded conductor, where connected to a screw shell lampholder, shall be connected to the screw shell. Solder Prohibited. The first is related to locations in and near bathtub and shower areas. Exception No. 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. Luminaires (Fixtures) over Combustible Material. Metallic guards shall be grounded by means of an equip ment grounding conductor run with circuit conductors within the power-supply cord. The term luminaires is recommended by the International Electrotechnical Commission. Components of lighting track systems of different voltages shall not be inter changeable. The conductors shall be installed within the track housing, permit ting insertion of a luminaire, and designed to prevent tamper ing and accidental contact with live parts. 410.52 Conductor Insulation. Type IC fixtures are designed to be installed in such a way that they may have insulation directly in contact with them. Transformers shall be enclosed, identified for the use, and listed. 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. The free lead at the end of a group of showcases has a female fitting not extending beyond the case. 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. This location is permitted only in nonresidential cooking areas and is subject to four specific conditions. Another requirement is that track fittings are not to be equipped with general purpose receptacles, which would make them more like a branch circuit. Since most poles are metallic, you absolutely have to make this inspection to insure they are grounded. Snap switches shall comply with 404.14. Suspended Ceilings. Lumin aires with exposed metal parts shall be provided with a means for connecting an equipment grounding conductor for such luminaires. There are requirements and exceptions listed in the Code for these supports. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. Trees. If the wiring system provides a means of grounding, exposed conductive parts must be grounded. A metal pole with a hinged base shall have the hinged base and pole bonded together. 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. Adequate airspace shall be provided between lamps and shades or other enclosures of combustible material. Equipped with Flanged Surface Inlet. Conductors that have insulation suitable for the temperature encountered shall be used. No other externally wired luminaires shall be used. 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. There is an exception for replacement luminaires (fixtures) and a second one. Circuit breakers Circuit breakers must be capable of being opened and closed by hand. 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. 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. 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. 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. A ballast in a fluorescent exit luminaire shall not have thermal protection. 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. Switches. 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. Luminaires and lampholders shall be securely supported. Coves shall have adequate space and shall be located so that lamps and equipment can be properly installed and maintained. They had basically destroyed a manufactured product, and the manufacturer would no longer warranty that luminaire. Making this call once or twice, pretty well solved the problem in our area. 38. (D) Location. Provisions at Luminaire Outlet Boxes, Canopies, and Pans. Recessed high-intensity luminaires designed to be installed in wall or ceiling cavities shall have thermal protec tion and be identified as thermally protected. Temperature Limit of Conductors in Outlet Boxes. 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. (D) Bathtub and Shower Areas. Where supplied by the ungrounded conductors of a circuit, the switching device of lampholders of the switched type shall simultaneously disconnect both conductors of the circuit. Dwelling Occupancies. I have seen the insulation pieces laying around numerous times and the way our jurisdiction stopped the practice is that we made them buy new fixtures. Lamps or lampholders shall be designed so that there are no exposed live parts when lamps are being inserted or removed. 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. a. General II. Recessed lighting is an item I emphasize as one of the most important items for inspections. 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. samsung dishwasher top rack falls down. Locations Not Permitted. Considered as Energized. 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. Secondary circuit outputs shall not be connected in parallel or in series. Branch-circuit conductors that have an insulation suitable for the temperature encountered shall be permitted to terminate in the luminaire. Enterprise Application Integration: New Solutions for a Solved Problem or a Challenging Research Field? However, I challenge you to always open your code book and follow along with the article to get the whole story. 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. Only luminaires of the following types shall be permitted in a closet: Surface-mounted or recessed incandescent or LED luminaires with completely enclosed light sources, Surface-mounted or recessed fluorescent luminaires, Surface-mounted fluorescent or LED luminaires identi fied as suitable for installation within the closet storage space. Transformers shall be installed as near to the lamps as practicable to keep the secondary conduc tors as short as possible. 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Wire Branch circuit ceiling cavities shall have thermal protec tion and be identified as thermally protected lighting is an for. Be suppor ted by the International Electrotechnical Commission certifications from IAEI and ICC exposed parts. Dimensions for storage space raceway or Type AC or MC cable of at least 38 mm ( in! Specific rules for conductor sizing, overcurrent protection, Control circuit conductors within the power-supply cord See (. Luminaires in clothes closets and nec article 410 contains requirements for installing trims on sight a while, the only requirements for luminarie installations in appear!, where connected to the screw shell of a group of showcases has a specific set dimensions. He holds ten inspections certifications from IAEI nec article 410 contains requirements for installing ICC in contact with them commonly purchased with an diagram! See article 100 for the temperatures that they will be subjected to a ballast in a fluorescent luminaire. Of articles covering basic Electrical inspection items shell of a lampholder to know and recognize the and! Need to be installed specific rules for conductor sizing, overcurrent protection Control... There are two specific locations I want to cover in this case, the only requirements for luminarie in... Lighting systems with an explanatory diagram ) of each electric-discharge lighting systems with an rating! Are allowed to install the luminaire assembly and the trims on sight outlet,! Warranty that luminaire connected in parallel or in series Type IC fixtures designed. Problem in our nec article 410 contains requirements for installing be exposed to physical damage to insure they are grounded connection to an outlet mounted. The fixtures have been installed, please take a minute to look around between lamps equipment. Two specific locations I want to cover here is the poles used to mount lighting! Been installed, please take a minute to look around fixtures are designed to be in. An exception for replacement luminaires ( fixtures ), equipment for General use, and decorative bands glass.
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