nec article 410 contains requirements for installing

Incandescent lumin aires shall have thermal protection and shall be identified as thermally protected. Recessed Remote Ballasts.

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. Conductor insulation shall be protected from abrasion where it passes through metal. Connection of Electric-Discharge and LED Luminaires. A bushing or the equivalent shall be provided where flexible cord enters the base or stem of a porta ble luminaire. Portable luminaires shall be wired with flexible cord recognized by 400.4 and an attachment plug of the polar ized or grounding type. The installation shall comply with 410.59(A) through (E). 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. 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 a cord plugged into a device on a trackthat is a violation. The seventh, ninth, and tenth parts provide requirements for manufacturers. A luminaire that weighs more than 3 kg (6 lb) or exceeds 400 mm (16 in.) Luminaires must maintain a minimum clearance from the closet storage space as follows [410.16(C)]: Surface-mounted fluorescent or LED luminaires are permitted within the closet storage space if identified for this use. Type IC. 2: No handhole shall be required in a pole 6.0 m (20 ft) or less in height abovegrade that is provided with a hinged base. Thermal insulation shall not be installed above a recessed luminaire or within 75 mm (3 in.) Web410.130(G) Disconnecting means. Switching. 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. Lets examine the requirements of the NEC, IES, and other standards. 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. You might ask why this requirement applies to double ended lamp units only. Web410.130(G) Disconnecting means. 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. Exception No. 3: Where no equipment grounding conductor exists at the outlet, replacement luminaires that are GFCI protected shall not be required to be connected to an equipment grounding conductor. Adequate airspace shall be provided between lamps and shades or other enclosures of combustible material. Exception No. 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? 6 in. Specify and install only equipment that conforms to these requirements.
However, the requirements within this article are important to know and enforce. (c)Listed luminaires connected using listed assemblies. See Figure 410.2.



Where these are of the recessed type, they must be marked as Type IC, or must have a clearance of 3 in. For the AHJ, this is once again one of those judgment calls. 410.62 Cord-Connected Lampholders and Luminaires. Fittings identified for use on lighting track shall be designed specifically for the track on which they are to be installed. The emergency illumination required in 700.16 [410.130(G)(1), Exception No. A luminaire assembly equipped with a strain reliefand canopy shall be permitted to use a cord connectionbetween the luminaire assembly and the canopy. 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).

for recessed fluorescent luminaires instal led in the wall or the ceiling. Recessed high-intensity luminaires designed to be installed in wall or ceiling cavities shall have thermal protec tion and be identified as thermally protected. 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. Outdoor luminaires and associated equipment shall be permitted to be supported by trees. between the first case and the supply receptacle. Constant wattage auto transformer. Stranded conductors shall be used for wiring on luminaire chains and on other movable or flexible parts. What about single pin lamps? 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. In Part III of 410, we cover mainly outlet boxes and canopies for luminaires. 3]. Randy Hunter is an instructor and consultant specializing in electrical code and installations, and co-owner of Hunter Technical Services. Conductors shall be arranged so that they are not subjected to tempera tures above those for which they are rated. Closet Storage Space. Exception No. Part XII. 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. Circuit Conductors.

Splices and taps shall not be located within luminaire arms or stems. Luminaires installed in corrosive locations shall be of a type suitable for such locations. Choose topics from a full list of courses covering electrical topics that cover what you need to know from the NEC and other electrical codes and standards. 410.160 Listing of Decorative Lighting. 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. The luminaires shall be marked for dc operation. Luminaires Connected Together. for recessed incandescent or LED luminaires with an enclosed light source. Informational Note: Combustible low-density cellulose fiber board includes sheets, panels, and tiles that have a density of 320 kg/m3(20 lb/ft3) or less and that are formed of bonded plant fiber material but does not include solid or laminated wood or fiberboard that has a density in excess of 320 kg/m3(20 lb/ft3) or is a material that has been integrally treated with fire-retarding chemicals to the degree that the flame spread index in any plane of the material will not exceed 25, deter mined in accordance with tests for surface burning characteris tics of building materials. Informational Note No.

WebThe NEC specifies a few requirements for outlet boxes, inspection, suspended ceilings, luminaire (fixture) studs, insulating joints, raceway fittings, busways, and trees.

The NEC in 2020 has erased our antiquated method of installing six circuit breakers in one enclosure to serve as a buildings service disconnect. The terminal of an electric-discharge lamp shall be considered as a live part. 410 are in a logical sequence. constant wattage autotransformer 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. 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. Dont let this Articles length and degree of detail throw you. 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. There are a couple of exceptions, so please review these. Exit Luminaires. The reason? Special Provisions for Flush and Recessed Luminaires. 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). Open-Circuit Voltage Exceeding 300 Volts. 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. While this makes sense for wet locations, it doesnt seem to make sense for a damp location. Access to Boxes. 410.52 Conductor Insulation. 410 applies to luminaires installed in the recessed cavities of walls and ceilings. Luminaires listed and marked for use as a raceway shall be permitted to be used as a raceway. 410.84 Cord Bushings. Dont let this Articles length and degree of detail throw you. Electrical Rating. ), or more than 300 mm (12 in.) 410.40 General. The second location to cover in detail is clothes closets, which is found in 410.16. Electric-discharge and LED luminaires supported independently of the outlet box must be connected to the branch circuit with a raceway or with Types MC, AC, or NM cable [410.24(A)]. 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. Recessed lighting fixtures. Considered as Energized. Coves shall have adequate space and shall be located so that lamps and equipment can be properly installed and maintained. Luminaires and equipment shall be mechanically connected to an equipment grounding conductor as specified in 250.118 and sized in accordance with 250.122. 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.

Connected Load. Insulating joints that are not designed to be mounted with screws or bolts shall have an exterior metal casing, insulated from both screw connections. This is similar to the rule for receptacle replacements in locations where an equipment grounding conductor isnt present in the outlet box [406.4(D)(3)]. WebNEC Article 410 contains requirements for installing? A luminaire shall be permitted to be connected witha cord terminating in a grounding-type attachment plug orbusway plug. Portable handlamps shall not be required to be grounded where supplied through an isolating transformer with an ungrounded secondary of not over 50 volts. Equipped with Flanged Surface Inlet.

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