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https://iaeimagazine.org/magazine/2015/marchapril-2015/nec-article-410-luminaires-lampholders-and-lamps/
Reading Time: 13 minutes This month we will continue the series of articles covering basic electrical inspection items. Article 410 is another example of an article in Chapter 4 of the NEC that often doesn’t get a lot of emphasis from multi-trade inspectors. However, the requirements within this article are important to know and enforce.
https://www.ecmweb.com/national-electrical-code/article/20891486/code-qa
The NEC does not specify that suspended ceilings can be used for the support of luminaries. It just specifies that if the suspended ceiling is used for support, then the luminaires must be attached to the suspended ceiling framing with screws, bolts, rivets, or clips listed and identified for such use [410.16(C)].
https://www.ecmweb.com/national-electrical-code/quizzes/article/20893289/code-quiz
The NEC does not permit you to add any additional support wires to support these type of luminaires. Answer: C. Although some states and cities may require additional support wires for the luminaires as described above, the NEC does not require support other than that described in 410.36(B).
https://forums.mikeholt.com/threads/luminaire-supported-by-conduit.40169/
Oct 04, 2007 · Referring to NEC 2002, 314.23.F, Exception (d): A luminaire (fixture) supported by a single conduit does not exceed 300mm (12 in.) in any direction from the point of conduit entry. Can anyone clarify this for me? I have a client I am doing some high bay fixtures for. Typically, I chain...
https://www.neca-neis.org/code-question-of-the-day/code-question/cqd-for-7-26-2004
Jul 26, 2004 · With Intermediate-Duty ceiling systems, if the 4-foot spacing of grid support wires is not within 6 inches (3 inch if UBC) of each corner of the light fixture, then additional wires must be attached to the luminaire to support it. This additional wiring support requirement is not required with Heavy-Duty suspended ceiling systems.
https://www.electrical-contractor.net/forums/ubbthreads.php/topics/172419/all/Support_for_Luminaires_Light_f.html
Jan 09, 2008 · MA. Code. Any fixture with a ballast needs additional support. 410.16 (C)-- Add second paragraph. "In addition to,or in lieu of,the machanical means,electrical fixtures containing ballasts,other than simple flourescent reactance ballasts,shall be supported directly to the building structure by wire,chain or threaded rod of sufficiantstrength to carrythe fixture.Flourescent fixtures shall be ...
http://www.cooperindustries.com/content/dam/public/bline/Resources/Library/catalogs/fasteners_and_fixing/spring_steel_fasteners_NA/NECRequirements.pdf
in place. Support wires that do not provide secure support shall not be permitted as the sole support. Support wires and associated fittings that provide secure support and that are installed in addition to the ceiling grid support wires shall be permitted as the sole support. Where independent support …
https://www.electriciantalk.com/f5/luminaire-support-25660/
Jun 26, 2011 · (f) At the luminaire or lampholder end, the conduit(s) is threaded wrenchtight into the box, conduit body, or integral wiring enclosure, or into hubs identified for the purpose. Where a box or conduit body is used for support, the luminaire shall be secured directly to the box or conduit body, or through a threaded conduit nipple not over 75 mm
https://www.electrical-contractor.net/forums/ubbthreads.php/topics/184969/all/lay_in_fixtures_independent_su.html
Jan 07, 2011 · lay-in fixtures, independent support wires.... #184969 02/26/09 10:20 PM: Joined: Feb 2001. ... building structure by wire, chain, or threaded rod of sufficient strength to carry the luminaire (fixture). Fluorescent luminaires (fixtures) shall be supported at each end of a diagonal axis of the luminaire (fixture). ... The National Electric Code ...
https://www.ecmag.com/section/codes-standards/article-370-boxes-conduit-bodies-and-fittings
370-23(b)(2) Enclosures Mounted on Braces Conduit bodies and boxes (outlet, device, pull, and junction) must be supported in accordance with one or more of the support provisions listed in …
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