There are a couple of exceptions, so please review these. Portable luminaires shall be wired with flexible cord recognized by 400.4 and an attachment plug of the polar ized or grounding type. Electric-discharge lighting systems with an open- circuit voltage exceeding 1000 volts shall be listed and installed in conformance with that listing. The reason? Luminaires shall be installed so that adjacent combustible material will not be subjected to temperatures in excess of 90C (194F). Thermal Protection Fluorescent Luminaires. 6 in. ), or more than 300 mm (12 in.) 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. Access to Boxes. Metal or nonmetallic poles shall be permitted to be used to support luminaires and as a raceway to enclose supply conductors, provided the following conditions are met: A pole shall have a handhole not less than 50 mm 100 mm (2 in. All luminaires shall be marked with the maxi mum lamp wattage or electrical rating, manufacturers name, trademark, or other suitable means of identification. 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. Luminaires Connected Together. from the sides and back of the closet walls, respectively, and continuing vertically to the closet ceiling parallel to the walls at a horizontal distance of 300 mm (12 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. 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. Electrical safety of an electric utility system's transmission and distribution facilities, substations and generation fall under the National Electrical Safety Code , Article 410.A.3 (2007). Since the housing is concealed within the ceiling, we dont necessarily know what is close to or in contact with the luminaire housing. In previous editions of the NEC, to see if you could use a luminaire as a raceway, youd find your answer in 410.64. 410.59 Cord-Connected Showcases. Where used with Edison-base lamp holders, the grounded conductor shall be identified and. The terminal of an electric-discharge lamp shall be considered as a live part. Webcan you sync razer and steelseries rgb. Raceway Fittings. Other requirements are in Article 680 (Swimming Pool and Fountain Luminaires, CMP 17) and 700 (Emergency Lighting, CMP 13). Recessed lighting fixtures. 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. Part XII. WebCode Change Summary: New code sections covering horticulture lighting equipment. for surface-mounted incandescent or LED luminaires with an enclosed light source. Lets examine the requirements of the NEC, IES, and other standards. Because lampholders arent included in the definition of luminaires, the 2011 Code added section 410.97. but not more than 1.8 m (6 ft) in length. The main goal of Part V is that you bond non-current-carrying metallic objects just as you do for any other installation. Decorative Lighting and Similar Accessories. The next important item is 410.6, which states that all luminaires and lamp holders shall be listed. This term is not to be confused with luminary, which is defined as an important person. 1: See 225.26 for restrictions for support of overhead conductors. Closet Storage Space. 410.64 Luminaires as Raceways. Stranding. Recessed lighting fixtures. for surface-mounted fluorescent luminaires. Type. Accessible. WebUntil now, there has never been anything specifically in Article 344 permitting RMC to be used where protection from severe physical damage was required, yet several other code articles besides Article 344 permit RMC as a solution where physical damage may occur. Transformers shall have a secondary short-circuit current rating of not more than 150 mA if the open-circuit volt age is over 7500 volts, and not more than 300 mA if the open- circuit voltage rating is 7500 volts or less. Circuit Conductors. 
Construction. Lampholders in Wet or Damp Locations. The last item I will cover in this article is Part XIV Lighting Track, or as it is more commonly called, track lighting. Other requirements are in Article 680 (Swimming Pool and Fountain Luminaires, CMP 17) and 700 (Emergency Lighting, CMP 13). 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. Luminaires listed and marked for use as a raceway shall be permitted to be used as a raceway. So at first, the contractor had to field install these devices, but eventually manufacturers started to ship units with the disconnects installed. 410 occupy only about three pages, but reading all of that for each lighting design still takes time. If you see a cord plugged into a device on a trackthat is a violation. This includes disconnecting the neutral conductor, otherwise, a false sense of security can result in an unexpected shock. Wet and Damp Locations. 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. Dont scan through Part V or Part VI. 
Part III. Lampholders of the screw shell type shall be of porcelain or other suitable insulating materials. Metal raceways or other equipment grounding conduc tors shall be bonded to the metal pole with an equipment grounding conductor recognized by 250.118 and sized in accordance with 250.122. Service neutral conductor within the service equipment enclosure. 
Section 410.11 has long required that luminaires installed near combustible material contain shades or guards to prevent the ignition of surrounding products. Where supplied by a circuit having a grounded conductor, the grounded conductor shall be connected to the screw shell. Live Parts. Open-Circuit Voltage Exceeding 300 Volts. Direct-Current Equipment. 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. on either side of the rod on a plane horizontal to the floor extending the entire length of the rod. The disconnecting means shall be located so as to be accessible to qualified persons before servicing or main taining the ballast. A ballast in a fluorescent exit luminaire shall not have thermal protection. This sequence is followed by the luminaire wiring requirements in Part VI. 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. 410.93 Double-Pole Switched Lampholders. If youve read them recently, just scan the subsection headings (such as, Bathtub and Shower Areas) for those that apply to your specific installation. Support. You hear a lot about energy-efficient lighting, but what about efficiency when designing and installing a Code-compliant lighting system? Within Sight or Locked Type. In previous editions of the NEC, the rules addressing the bonding of luminaires have been a hodgepodge of requirements in an illogical arrangement. Instant-start lamps contain a? This requirement affects double ended fluorescent lamp luminaires. The key to this efficiency is to greatly reduce the amount of reading you must do without missing applicable requirements. Installed in Poured Concrete. Conductor insulation shall be protected from abrasion where it passes through metal. The main goal of Part VI is to ensure that the wiring on or within luminaires is properly protected and supported. A luminaire assembly equipped with a strain reliefand canopy shall be permitted to use a cord connectionbetween the luminaire assembly and the canopy. In 410.16, Clearance and Installation, the requirements are covered depending on the type of luminaire. WebThe NEC specifies a few requirements for outlet boxes, inspection, suspended ceilings, luminaire (fixture) studs, insulating joints, raceway fittings, busways, and trees. These are very commonly used in residential construction and are a very important part of the residential inspection process. ballast that provide high voltage across the lamp's electrodes at startup, causing them to emit electron Which of the following is an HID ballast category? Bundling multiple service disconnect switches inside one enclosure makes it impossible to comply with NFPA 70E Standards for Electrical Safety in the Workplace when it comes to safe WebCode Change Summary: New code sections covering horticulture lighting equipment. The NEC in 2020 has erased our antiquated method of installing six circuit breakers in one enclosure to serve as a buildings service disconnect. WebSpecial Provisions for Electric-Discharge Lighting Systems of 1000 Volts or Less, Equipment Not Integral with Luminaire (Fixture), XIV. Luminaire Types Permitted. Protection Through Metal. Webnec article 410 contains requirements for installing 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. Luminaires shall be wired so that the screw shells of lampholders are connected to the same luminaire or circuit conductor or terminal. 
However, the requirements within this article are important to know and enforce. National Electrical Code Article 410 Parts M and N provide special provisions for luminaires (lighting fixtures) installed within recessed cavities in walls or ceilings. 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 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. Article 411 addresses lighting systems operating at 30V or less. The 2008 NEC added allowances for LED luminaires in clothes closets [410.16]. Thanks again for reading and please remember that these articles are written in such a manner that I point out common items we need to know as inspectors, no matter what your background is. (c)Listed luminaires connected using listed assemblies. Metal or Nonmetallic Poles Supporting Luminaires. Parts that must be removed for lamp replacement shall be hinged or held captive. Decorative lighting and similar accessories used for holiday lighting and similar purposes, in accordance with 590.3(B), shall be listed. 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. Secondary Conductors. Wiring on or within luminaires shall be neatly arranged and shall not be exposed to physical damage. Luminaires identified for through-wiring as permitted by 410.21 [410.64(B)]. Electric-discharge luminaires equipped with a flanged surface inlet shall be permitted to be supplied by cord pendants equipped with cord connectors. Type IC fixtures are designed to be installed in such a way that they may have insulation directly in contact with them. 410.2 Definition. 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. While that requirement certainly makes sense, theres a gaping hole in the rule it doesnt address lampholders. 410. 1: A disconnecting means shall not be required for luminaires installed in hazardous. D9 Feeder Ampacity Determination for Generator Field Control, Example No. 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. 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. Most NEC requirements for lighting equipment are found in Articles 410 (Luminaires), 411 (Low Voltage Lighting), and 600 (Signs), all of which are within the responsibility of CMP 18. 410.14 Luminaires in Show Windows. Outlet Boxes. There are two specific locations I want to cover in this article. 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 Other requirements are in Article 680 (Swimming Pool and Fountain Luminaires, CMP 17) and 700 (Emergency Lighting, CMP 13). The second location to cover in detail is clothes closets, which is found in 410.16. Rating. The first five parts of Art. Amend NEC 2017, page 266:. 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. Luminaires must be connected to an equipment grounding conductor of a type recognized in 250.118. 410.97 Lampholders Near Combustible Material. 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 free lead at the end of a group of showcases has a female fitting not extending beyond the case. 410.68 Feeder and Branch-Circuit Conductors and Ballasts. Independent of the Outlet Box. A toggle bolt pushed through a lay-in ceiling tile will likely not be adequate. Auxiliary equipment for electric-discharge lamps shall be enclosed in noncombustible cases and treated as sources of heat. 12 in. Please take time to read the scope of this article in 410.1. 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