For the AHJ, this is once again one of those judgment calls. 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. 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. Decorative Lighting and Similar Accessories. Many times workers who are shocked dont die from the electrocution, but from the fall. Luminaires in Indoor Sports, Mixed-Use, and All-Purpose Facilities. in any dimension shall not be suppor ted by the screw shell of a lampholder. Exposure to Damage. Chapter 4: Equipment for General Use. The ballast of a fluorescent luminaire installed indoors shall have integral thermal protec tion. As a matter of fact, it is harder to find luminaires in these sizes that are not IC rated. 410.18 Space for Cove Lighting. Conductors in vertical poles used as raceway shall be supported as provided in 300.19. The free lead at the end of a group of showcases has a female fitting not extending beyond the case. 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). Outdoor luminaires and associated equipment shall be permitted to be supported by trees. Lampholders. Luminaire Types Permitted. samsung dishwasher top rack falls down. Transformers of the Oil-Filled Type. Conductors shall be secured in a manner that does not tend to cut or abrade the insulation. Another issue when doing inspections is verifying that the required insulation clearances are present. You might ask why this requirement applies to double ended lamp units only. 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. What about single pin lamps? 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. Simple Reactance Ballasts. Corrosive Locations. Luminaires and lampholders shall be securely supported. 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For example, if the illumination equipment is in a hazardous location, apply Articles 500 through 517. 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. nec article 410 contains requirements for installing. The groun ded conductor, where connected to a screw shell lampholder, shall be connected to the screw shell. 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. 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. For some reason, these are not commonly purchased with an IC rating. 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. 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. Insulating joints that are not designed to be mounted with screws or bolts shall have an exterior metal casing, insulated from both screw connections. Grounding. 400.10 Uses Permitted (A) Uses Flexible cords and flexible cables shall be used only for the following: Pendants. Replacement ballasts shall also have thermal protection integral with the ballast. 410.40 General. 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. Secondary circuit outputs shall not be connected in parallel or in series. Diffusers shall be resistant to thermal shock. 150 mm (6 in.) Provided with Mogul-Base, Screw Shell Lampholders. No unnecessary splices or taps shall be made within or on a luminaire.Informational Note: For approved means of making connec tions, see 110.14. 410.10 Luminaires in Specific Locations (A) Wet and Damp Locations 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. The last thing we want is to have a heat source that may ignite some material within the ceiling and cause an attic fire. Live Parts. One additional 2-wire branch circuit separately supplying one or more of the connected luminaires shall also be permit ted. Lampholders installed in wet locations shall be listed for use in wet locations. Conductors shall be arranged so that the weight of the luminaire or movable parts does not put tension on the conductors. Construction. Heavy-Duty Lighting Track. Thermal insulation shall not be installed above a recessed luminaire or within 75 mm (3 in.) You probably guessedit is the last item in Article 410, and it states that holiday lighting shall be in accordance with Article 590.3(B). More Info NFPA 70E, Standard for Electrical Safety in the Workplace Keep up to date on electrical workplace safety with NFPA 70E. 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. Portable handlamps shall not be required to be grounded where supplied through an isolating transformer with an ungrounded secondary of not over 50 volts. Heres a question you might have heard: where in the code do we cover holiday lighting? Type IC. Thermal Protection Fluorescent Luminaires. Part XII Special Provisions for Electric-Discharge Lighting System of 1000 Volts or Less includes 410.130(G) Disconnecting Means. Location. Additional Requirements. This includes cables, conductors, wiring devices, and others. Portable Handlamps. Article 410 provides the requirements for installing luminaires, lampholders, lamps, and decorative lighting products on circuits greater than 30V. Special Provisions for Flush and Recessed Luminaires (Fixtures). Tap Conductors. A common problem here is that a contractor will use a particular brand of recessed can, and then trim them out with a different brand of trim; since those items were not tested together, this is a violation of the IC listing of the recessed can. There are other requirements in each of these parts that I encourage you to review, since this article only covers the highlights. 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. Surface-mounted luminaires (fixtures) can be installed on the wall above the door or on the ceiling. 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. When connected to multiwire branch circuits, the disconnecting means shall simultaneously break all the supply conductors to the ballast, including the grounded conductor. 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). All luminaires shall be marked with the maxi mum lamp wattage or electrical rating, manufacturers name, trademark, or other suitable means of identification. Auxiliary equipment, including reactors, capacitors, resistors, and similar equipment, where not instal led as part of a luminaire assembly, shall be enclosed in accessi ble, permanently installed metal cabinets. 410.14 Luminaires in Show Windows. III. 4 in.) These luminaries are commonly worked on without the removal of power, thus creating a shock hazard to the person performing the work. Lampholders in Wet or Damp Locations. Part XII. Informational Note No. Type IC fixtures are designed to be installed in such a way that they may have insulation directly in contact with them. Chapter 3: Wiring Methods and Materials. Secondary Conductors. Protection Through Metal. Switches. 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. Special Provisions for Flush and Recessed Luminaires. While it may be possible to list them together, I havent seen a fixture that is listed for another manufacturers trims. 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. Please take time to read the scope of this article in 410.1. 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. (A) Wet and Damp Locations. The fittings cannot have general-purpose receptacles. 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? XVI. The code has a specific set of dimensions for storage space with an explanatory diagram. 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. So at first, the contractor had to field install these devices, but eventually manufacturers started to ship units with the disconnects installed. Through-Wiring. Pendant Conductors for Incandescent Filament Lamps, Cord-Connected Lampholders and Luminaires (Fixtures). Twisted or Cabled. You cannot have any part of a suspended fixture (i.e., the cord, pendant chain, etc.) 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 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. Busways. 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. The clearance between the luminaire (fixture) and nearest point of storage must be 150 mm (6 in.). Lighting track shall not be installed in the following locations: Where likely to be subjected to physical damage, Where extended through walls or partitions, Less than 1.5 m (5 ft) above the finished floor except where protected from physical damage or track operating at less than 30 volts rms open-circuit voltage. As we mentioned earlier, we have a definition for closet storage space. Lighting track shall be securely mounted so that each fastening is suitable for supporting the maximum weight of luminaires that can be installed. 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. 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. However, the only requirements for luminarie installations in closets appear in section 410.16, which specifically addresses luminaires in clothes closets. 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. 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. Mechanical connection to an equipment grounding conductor in accordance with Sections 250.118 and 250.122. 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. The disconnecting means shall be located so as to be accessible to qualified persons before servicing or main taining the ballast. 1: A disconnecting means shall not be required for luminaires installed in hazardous. 410.48 Luminaire Wiring General. Luminaires (Fixtures) Near Combustible Material. 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. within 900 mm (3 ft.) horizontally and 2.5 m (8 ft.) vertically from the top of the bathtub rim or shower stall threshold. 410.10 (D) Bathtub and Shower Areas. 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. Luminaires shall be wired so that the screw shells of lampholders are connected to the same luminaire or circuit conductor or terminal. between the first case and the supply receptacle. 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.

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