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http://www.cooperindustries.com/content/dam/public/bline/Resources/Library/catalogs/fasteners_and_fixing/spring_steel_fasteners_NA/NECRequirements.pdf
Reprinted with permission from NFPA 70HB14, the National Electrical Code ... Support wires that do not provide secure ... protection in the form of rigid metal conduit, intermediate metal conduit, or rigid nonmetallic conduit having a length not exceeding 3.05 m.
https://www.electrical-knowhow.com/2013/06/conduit-fittings-and-supports.html
Conduit nipples (see Figure 8) protect wiring between two enclosures mounted close together. Nipples are threaded on both ends and vary in size and length. A conduit nipple is specified by Chapter 9 of the NEC, Note 4 to Tables, as having a maximum length of 24 inches.
https://www.electriciantalk.com/f5/supporting-emt-21229/
Feb 24, 2011 · According to the NEC. Yes, no? I'm 100% positive you don't have to. CLICK ... and everyone else. I do not think couplings are terminations; one support per stick is fine. Conduit bodies are LBs and LRs, etc. where I would agree you do need a strap within 3'.-John _____ To view links or images in signatures your post count must be 10 or greater. ...
http://wiresizecalculator.net/tables/conduitsupportstable.htm
These tables list the maximum distance between conduit supports for rigid metallic and non-metallic conduit. Supports for Rigid Metallic Conduit Source: NFPA 70, National Electrical 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 …
https://www.ecmweb.com/cee-news-magazine-archive/article/20894958/code-guide
Nothing in the NEC states that you cannot use the same supports for conduit as for other systems. Although Section 300.11(B) generally prohibits the use of conduit as support for anything else, it does not mention the use of water pipe or other systems (other than ceiling grids and wires) for support …
https://www.electricallicenserenewal.com/Electrical-Continuing-Education-Courses/NEC-Content.php?sectionID=102.0
In the 2014 NEC, that question has been answered by a code change to exception 4. According to the new code language, for the purposes of this exception, listed flexible metal conduit fittings shall be permitted as a means of support.
https://www.electriciantalk.com/f5/supporting-emt-connectors-35939/
Mar 16, 2012 · The 3' from a coupling is from past code cycles. From The 1990 NEC Article 348-12 Supports Electrical Metallic tubing shall be installed as a complete system as provided by article 300 and shall be securely fastened in place at least every 10 feet(3.05m) and within 3 feet(914mm) of each outlet box,junction box,cabinet,or fitting.
https://steeltubeinstitute.org/steel-conduit/wp-content/uploads/sites/4/2013/04/ConGuide.pdf
equipment grounding and a new Steel Conduit Installation Guide. GEMI lets you confirm design parameters of grounding systems that use steel electrical conduit and helps you determine whether your electrical designs comply with the equipment grounding requirements of the NEC. For your free copy of the GEMI CD, contact the Steel Tube Institute,
https://www.ecmweb.com/content/article/20889062/does-the-nec-limit-a-flexible-metal-conduit-run
Q. Can someone tell me if the National Electrical Code (NEC) limits running flexible metal conduit to any particular length? I ask this because I understand Greenfield for a light fixture shall not be longer than 6 ft. I would like to know if I can extend a 7-ft run of flexible metal conduit to a motor. —J.C. A. The NEC does restrict the length of flexible metal conduit for lighting fixtures ...
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