1926.404(f)(7)(i): Supports and enclosures for conductors
Key takeaways
- 1926.404(f)(7)(i) is part of OSHA's construction standards (29 CFR Part 1926, Subpart K).
- Related part: 1926.404(f) Grounding (241 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1926.404(f)(7)(i) ("Supports and enclosures for conductors") is one requirement inside 1926.404 Wiring design and protection, an OSHA construction standard (Part 1926, Subpart K). It includes 2 sub-paragraphs. The official text below is copied word for word from the Electronic Code of Federal Regulations (eCFR). The numbers, injury cases and training on this page show how OSHA enforces it on real job sites.
Official text
(i) Supports and enclosures for conductors. Metal cable trays, metal raceways, and metal enclosures for conductors shall be grounded, except that:
(A) Metal enclosures such as sleeves that are used to protect cable assemblies from physical damage need not be grounded; and
(B) Metal enclosures for conductors added to existing installations of open wire, knob-and-tube wiring, and nonmetallic-sheathed cable need not be grounded if all of the following conditions are met:
(1) Runs are less than 25 feet (7.62 m);
(2) Enclosures are free from probable contact with ground, grounded metal, metal laths, or other conductive materials; and
(3) Enclosures are guarded against employee contact.
Source: eCFR, text current as of 2026-10-15. Read all of 1926.404.
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OSHA interpretation letters
Related parts of this rule
- 1926.404(f) Grounding 241 citations
- 1926.404(f)(6) Grounding path 234 citations
- 1926.404(f)(7) Supports, enclosures, and equipment to be grounded 4 citations
- 1926.404(f)(7)(iv) Equipment connected by cord and plug 3 citations
- 1926.404(f)(1)(iv) AC systems, 50 volts to 1000 volts 2 citations
- 1926.404(f)(1) Systems to be grounded 2 citations
- 1926.404(f)(3)(i) Portable generators
- 1926.404(f)(3) Portable and vehicle-mounted generators
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About this page
Sources
- 29 CFR 1926.404 (eCFR), text current as of 2026-10-15
- U.S. Department of Labor enforcement data: OSHA inspections, citations and accident records, copied nightly
3-year window. Federal OSHA only; state-plan rules are not counted. Plain-language text is a summary, not legal advice; the official text controls. Black Belt Safety is not part of OSHA or the Department of Labor.