Lampholders installed in damp locations shall be listed for damp locations or shall be listed for wet locations. 400.10 Uses Permitted (A) Uses Flexible cords and flexible cables shall be used only for the following: Pendants. Locations Not Permitted. 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 insulation used on conductors must be suitable for the temperatures that they will be subjected to. (C) In Ducts or Hoods. All luminaires, lampholders, and retrofit kits shall be listed. Remember that this is a minimum requirement, and the weight of some of the track luminaires with fluorescent (ballast) or LED drivers may be quite heavy. 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. Luminaires shall be constructed such that adjacent combustible material is not subject to tempera tures in excess of 90C (194F). Handlamps shall be equipped with a substantial guard attached to the lampholder or handle. Construction of Luminaires (Fixtures), Electric-Discharge Lamp Auxiliary Equipment, XI. 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. Enclosures. This month we will continue the series of articles covering basic electrical inspection items. Chapter 4: Equipment for General Use. Special bases or other devi ces shall be used for over 1500 watts. Lampholders in Wet or Damp Locations. Elevator cables. Deleted. Tap conductors can run to a box at least 300 mm (1 ft.) from the fixture. D6 Maximum Demand for Range Loads, Example No. Type IC luminaires have different requirements. You might ask why this requirement applies to double ended lamp units only. nec article 410 contains requirements for installingcushion foundation case In 410.16, Clearance and Installation, the requirements are covered depending on the type of luminaire. Part IV is titled Luminaire Supports. When connected to multiwire branch circuits, the disconnecting means shall simultaneously break all the supply conductors to the ballast, including the grounded conductor. A metal pole shall be provided with an equipment grounding terminal as follows: A pole with a handhole shall have the equipment grounding terminal accessible from the handhole. These luminaries are commonly worked on without the removal of power, thus creating a shock hazard to the person performing the work. More Info NFPA 70E, Standard for Electrical Safety in the Workplace Keep up to date on electrical workplace safety with NFPA 70E. 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. Location. Fittings identified for use on lighting track shall be designed specifically for the track on which they are to be installed. Informational Note No. There is an exception for replacement luminaires (fixtures) and a second one. All of the electrical equipment and enclosures must be specifically approved for the location [682.10]. Marking. Connection of utilization equipment to facilitate frequent interchange. Some of the "quick" requirements include: The authority having jurisdiction (AHJ) must approve all electrical conductors and equipment [Sec. Is a small pantry with a door in your kitchen considered a closet? The issue here is that these luminaires have the possibility of generating a lot of heat, and the lamp is designed to be installed inside a metallic housing, which is then installed at the top of a room in the ceiling. Accessible. Live Parts. 410.48 Luminaire Wiring General. Switching. 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. The grounding terminations within the poles are often difficult to install and also inspect. Bathtub and Shower Areas. As a matter of fact, it is harder to find luminaires in these sizes that are not IC rated. 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. The groun ded conductor, where connected to a screw shell lampholder, shall be connected to the screw shell. Independent of the Outlet Box. A metal pole with a hinged base shall have the hinged base and pole bonded together. D10 Feeder Ampacity Determination for Adjustable-Speed Drive Control [See 215.2, 430.24, 620.13, 620.14, 620.61, Tables 430.22(E), and 620.14], Example No. Luminaires over Combustible Material. If the wiring system provides a means of grounding, exposed conductive parts must be grounded. Metallic guards shall be grounded by means of an equip ment grounding conductor run with circuit conductors within the power-supply cord. This type of luminaire (fixture) must comply with Sections 410.65 through 410-72. Electrical Rating. Each fitting attached to a heavy-duty lighting track shall have individ ual overcurrent protection. D5(a) Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. Integral Thermal Protection. So at first, the contractor had to field install these devices, but eventually manufacturers started to ship units with the disconnects installed. 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 shall be securely fastened to the ceiling framing member by mechanical means such as bolts, screws, or rivets. 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. ), or more than 300 mm (12 in.) 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. The load and the branch-circuit rating cannot exceed the rating of the track. 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? Metal Cabinets. The luminaires shall be marked for dc operation. 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. 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 connected load on lighting track shall not exceed the rating of the track. Adjacent to Combustible Materials. 410.70 Combustible Shades and Enclosures. These buildings concern unique environments that pose a high risk to multiple people. 410.8 Inspection. (D) Bathtub and Shower Areas. (12.7mm) from combustible materials. For existing installed lumin aires without disconnecting means, at the time a ballast is replaced, a disconnecting means shall be installed. If you are tasked with doing inspections for parking lot lighting, you need to be familiar with a few items. No Other Equipment. Refer to 310.15 or 310.60 for 14 AWG and larger conductors. So, we have to picture the cube directly over the tub or shower, extending 3 feet out from the edge and 8 foot above the unit. Tap Conductors. These must be unswitched lampholders. Auxiliary equipment for electric-discharge lamps shall be enclosed in noncombustible cases and treated as sources of heat. Don't let this Article's length and degree of detail throw you. Chapter 3: Wiring Methods and Materials. Parts VI through IX deal with items generally covered by the manufacturers of the luminaires. Special Provisions for Electric-Discharge Lighting Systems of More Than 1000 Volts. Luminaires shall not be used as a raceway for circuit conductors unless they comply with 410.64(A), (B), or (C). Grounding. Recessed. 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. The clearance between the luminaire (fixture) and nearest point of storage must be 300 mm (12 in.) Thermal protection shall not be required in a recessed high-intensity discharge lumin aire identified for use and installed in poured concrete. Equipment schedules are important, and one should ask for an equipment schedule during the plan review process, to make sure of what is taking place inside the extraction room and also the surrounding areas. First is the requirement for properly sized handholes, which allows the installer to make the circuit conductor connections and most importantlythe grounding connections. 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. 410.40 General. Egress Luminaires. 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. Size. The main item I want to cover here is the poles used to mount area lighting. For the AHJ, this is once again one of those judgment calls. 410.130 (G) Disconnecting means. A means to connect an equipment ground must be provided for a metal luminaire (fixture). 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). There are requirements for supported and unsupported cables. Remember that the canopy will be included in the volume requirement, so the box and the canopy together provide the space. Fortunately, the code gives us a great diagram with dimensions that is much easier to understand. General II. Transformers shall be accessible after installa tion. You cannot have any part of a suspended fixture (i.e., the cord, pendant chain, etc.) Luminaires in Indoor Sports, Mixed-Use, and All-Purpose Facilities. 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). Access to Boxes. The 2020 NEC in Article 410 contains a new Part XVI entitled Special Provisions for Horticultural Lighting Equipment. Part X. Recessed high-intensity luminaires designed to be installed in wall or ceiling cavities shall have thermal protec tion and be identified as thermally protected. Prescriptive steps for connecting and disconnecting are provided and must be provided on the equipment. Luminaires installed in recessed cavities in walls or ceilings, including suspended ceilings, shall comply with 410.115 through 410.122. According to the NEC 410.16(A), the following is defined as acceptable for installation in clothing closets: Surface or recessed incandescent or LED luminaires with an enclosed light source. Lampholders of the screw shell type shall be of porcelain or other suitable insulating materials. D9 Feeder Ampacity Determination for Generator Field Control, Example No. (B) Luminaire (Fixture) Types Permitted. Transformers of the Oil-Filled Type. This term is not to be confused with luminary, which is defined as an important person. 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. Twisted or Cabled. 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. instant-start lamps which of the following is an HD ballast category? Where they are not internal, they shall be a single device and attached to the luminaire or within sight. Surface-mounted or recessed incandescent or fluorescent fixtures are permitted. Wiring Supplying Luminaires (Fixtures) Connected Together, VII. However, the only requirements for luminarie installations in closets appear in section 410.16, which specifically addresses luminaires in clothes closets. Recessed luminaires (fixtures) can be installed in the wall or ceiling. If you try to read the definition, it might be a little confusing trying to imagine the shape from the language. The housing for the lighting track system shall be of substantial construction to maintain rigidity. Luminaires (Fixtures) over Combustible Material. Total Cards. Additional Requirements. Listed clips identified for use with the type of ceiling framing member(s) and lumin aire(s) shall also be permitted. Disconnection. It is permitted, however, if the luminaire (fixture) is listed for that use. 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. 410.90 Screw Shell Type. Electric-Discharge Lamp Auxiliary Equipment. Luminaires and lampholders shall be securely supported. 410.50 Polarization of Luminaires. Surface-mounted fluorescent or LED luminaires shall be permitted to be installed within the closet storage space where identified for this use. Lampholders. See ANSI/ASTM E842015a,StandardTest Method for Surface Burning Characteristics of Building Materialsor ANSI/UL 7232013,Standard for Test for Surface Burning Characteristics of Building Materials. Properly Secured. nec article 410 contains requirements for installing nec article 410 contains requirements for installing Transformers shall be located so that adjacent combustible materials are not subjec ted to temperatures in excess of 90C (194F). III. 110.2]. 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. The means for providing illumination has gone through numerous changes over the centuries, from oil lamps to incandescent bulbs, to fluorescent tubes and LEDs. Considered as Energized. 410.42 Luminaire(s) with Exposed Conductive Parts. Where showcases are cord- connected, the secondary circuit(s) of each electric-discharge lighting ballast shall be limited to one showcase. There are two specific locations I want to cover in this article. All luminaires installed in wet locations shall be marked, "Suitable for Wet Locations ." 410.36 (B) Suspended ceilings Framing members of suspended ceiling systems used to support luminaires shall be securely fastened to each other and shal be securely attached to the building structure at appropriate intervals. The first requirement is that it is to be installed permanently and permanently connected to a branch circuit. Luminaires shall be constructed, installed, or equipped with shades or guards so that combustible material is not subjected to temper atures in excess of 90C (194F). The voltage to ground of any output terminals of the secondary circuit shall not exceed 7500 volts under any load conditions. Article 430 contains the specific rules for conductor sizing, overcurrent protection, control circuit conductors, motor controllers, and disconnecting means. Depending on the type of lighting used, whether incandescent, fluorescent, or LED, surface-mounted or flush-mounted, this section lists clearances to the nearest storage space. I will not go into detail here, but the scope has a laundry list of items and you will find that it is pretty exclusively related to lighting products and devices. Title. 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. (E) Luminaires (Fixtures) in Indoor Sports, Mixed-Use, and All-Purpose Facilities. Luminaires shal be securely fastened to the ceiling framing member by mechanical means such as bolts, scres, or rivits. I will not cover each of these here, please review them on your own so that you will be aware of what is in this part of the code. Since the closet doors are generally closed, if the fixture is left on and overheats items in the closet, the resulting fire could go unnoticed for quite some time. 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. 410.64 Luminaires as Raceways. Circuit Conductors. Pendant lampholders with permanently attached leads, where used for other than festoon wiring, shall be hung from separate stranded rubber-covered conductors that are soldered directly to the circuit conductors but suppor ted independently thereof. 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. Lighting track shall be supplied by a branch circuit having a rating not more than that of the track. This may create inspection issues, as Ive seen these cord- and plug-connected and hung in various ways that I didnt consider permanent. 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. D5(b) Optional Calculation for Multifamily Dwelling Served at 208Y/120 Volts, Three Phase, Example No. Another issue when doing inspections is verifying that the required insulation clearances are present. Open-Circuit Voltage Exceeding 300 Volts. Decorative lighting and similar accessories used for holiday lighting and similar purposes, in accordance with 590.3(B), shall be listed. Location. Wet and Damp Locations. 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. Receptacles, Connectors, and Attachment Plugs. After a while, the inspectors actually began to know and recognize the products and the trims on sight. Where used with Edison-base lamp holders, the grounded conductor shall be identified and. Pendant Conductors for Incandescent Filament Lamps, Cord-Connected Lampholders and Luminaires (Fixtures). Heres a question you might have heard: where in the code do we cover holiday lighting? Luminaires installed on dc circuits shall be equipped with auxiliary equipment and resistors designed for dc operation. Lampholders installed over highly combustible material shall be of the unswitched type. The bushing shall be of insulating material unless a jacketed type of cord is used. Part III. Then, if you see something that just doesnt look right during an inspection, you will know where to go to verify the code requirements. Excess wiring shall be avoided. Secondary Conductors. They must be installed so that any adjacent combustible material will not be subjected to a temperature higher than 90C (194F). XII. 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. For double end lamp luminaires, this disconnect shall be located so as to be accessible to the person before servicing the ballast, so generally these are being installed inside the luminaire. Luminaires, portable luminaires, lamphold ers, and lamps shall have no live parts normally exposed to contact. Several codes regulate the use of artificial lighting. of the recessed luminaires enclosure, wiring compartment, ballast, transformer, LED driver, or power supply unless the luminaire is identified as Type IC for insulation contact. A bushing or the equivalent shall be provided where flexible cord enters the base or stem of a porta ble luminaire. Installation. There are issues related to combustibles due to the heat that is generated by traditional lighting methods. 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. Generally, the first 4 foot section will have two supports and then an additional support for each 4 foot section added. best small portable charger for android; international conference on social sciences and humanities 2022; radiator stop leak tablets 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. The details are found in 410.10(D), where we describe a zone in which no luminaire may be installed. 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. Therefore, these fixtures now require a disconnecting means. Trees. In this case, the power to the ballast is disconnected when the lamp is removed. Construction of Flush and Recessed Luminaires (Fixtures), XIII. for recessed fluorescent luminaires instal led in the wall or the ceiling. 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. The disconnecting means shall be located so as to be accessible to qualified persons before servicing or main taining the ballast. Equipped with Flanged Surface Inlet. Informational Note: For ampacity of fixture wire, maximum operating temperature, voltage limitations, minimum wire size, and other information, see Article 402. 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. 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Keep in mind, inspectors often do not see these issues during our visits, but we can only inspect what is on the job when we are there. 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. Equipment that has an open- circuit voltage exceeding 1000 volts shall not be installed in or on dwelling occupancies. All luminaires shall be marked with the maxi mum lamp wattage or electrical rating, manufacturers name, trademark, or other suitable means of identification. Multiwire Branch Circuits. 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. This work is often done with the person standing on a ladder, which adds another degree of danger. The separation between cases is not in excess of 50 mm (2 in. 410.84 Cord Bushings. The canopyshall be permitted to include a section of raceway not over150 mm (6 in.) The equipment grounding conductor c. Requirements for communications . Raceway fittings used to support a luminaire(s) shall be capable of supporting the weight of the complete fixture assembly and lamp(s). 410.73 (G) Handbook Commentary Section 410.73 (G) was added to the 2005 Code with an effective date of January 1, 2008. . Inherently Protected. in any dimension shall not be suppor ted by the screw shell of a lampholder. Electrical Level 1 - Chapter 26105-14. He holds ten inspections certifications from IAEI and ICC. 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. The raceway used for the tap conductor must be at least 450 mm (18 in.) Article 410 is another example of an article in Chapter 4 of the NEC that often doesnt get a lot of emphasis from multi-trade inspectors. A luminaire assembly equipped with a strain reliefand canopy shall be permitted to use a cord connectionbetween the luminaire assembly and the canopy. Temperature Limit of Conductors in Outlet Boxes. Luminaires and lighting equipment shall be grounded as required in Article 250 and Part V of this article. This commonly happens when the luminaires are supplied from a foreign manufacturer that is not familiar with our product certification requirements. The clearance between the luminaire (fixture) and nearest point of storage must be 150 mm (6 in.). 410.14 Luminaires in Show Windows. Recessed Remote Ballasts. Other. Fire-Resistant Construction. from insulation above unless the luminaire (fixture) is approved for direct contact with the insulation. Transformers shall be enclosed, identified for the use, and listed. within 900 mm (3 ft.) horizontally and 2.5 m (8 ft.) vertically from the top of the bathtub rim or shower stall threshold. You cannot support a fixture by the screw shell of a lampholder if it weighs more than 3 kg (6 lb.) Instant start lamps Which of the following is an HID ballast category? 1: No handhole shall be required in a pole 2.5 m (8 ft) or less in height abovegrade where the supply wiring method continues without splice or pull point, and where the interior of the pole and any splices are accessible by removing the luminaire.Exception No. These are very commonly used in residential construction and are a very important part of the residential inspection process. Receptacles and attachment plugs shall be permitted to be of a lower ampere rating than the branch circuit but not less than 125 percent of the luminaire full-load current. 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. 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). Rating. for a fluorescent luminaire (fixture). Provisions at Luminaire Outlet Boxes, Canopies, and Pans. Professional. 38. Fastening. Often we find shelves that hold cardboard boxes or garments that are easily ignited if in contact with a heat source. That zone is 3 feet horizontally and 8 feet vertically from the tub rim or the shower threshold. Conductor insulation shall be protected from abrasion where it passes through metal. Recessed Incandescent Luminaires. 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. So on a non-IC type we must have a 1/2 inch space from any recessed parts to combustibles, excluding the support or finish trims. The next important item is 410.6, which states that all luminaires and lamp holders shall be listed. 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. 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. However, the requirements within this article are important to know and enforce. D8 Motor Circuit Conductors, Overload Protection, and Short-Circuit and Ground-Fault Protection, Example No. The second location to cover in detail is clothes closets, which is found in 410.16. 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. There are additional requirements for cable installed in cable tray and cable grouped together supported by messenger cable.
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