1910.269(l)(3)(iii)(B): Insulated From the Energized Part
One way an employee may work closer than the minimum approach distance is when the energized part is insulated from the employee and from any other conductive object at a different potential.
Key takeaways
- 1910.269(l)(3)(iii)(B) is part of OSHA's general industry standards (29 CFR Part 1910, Subpart R).
- OSHA cited it 3 times in the last 3 years, in 3 inspections, with $7,000 in current penalties.
- 1 death is linked to inspections that cited this rule.
- Related part: 1910.269(l) Working on or near exposed energized parts (75 citations).
- Free 5-minute toolbox talk for your crew below.
In this article
What this rule covers
29 CFR 1910.269(l)(3)(iii)(B) is one requirement inside 1910.269 Electric power generation, transmission, and distribution, an OSHA general industry standard (Part 1910, Subpart R). 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
(B) The energized part is insulated from the employee and from any other conductive object at a different potential, or 3 citations
Source: eCFR, text current as of 2026-10-15. Read all of 1910.269.
Injuries linked to this rule
1 death is linked to inspections where OSHA cited 1910.269(l)(3)(iii)(B).
At 9:30 a.m. on July 23, 2024, an employee working as a lineman for an electric power cooperative was working from a bucket truck switching out transformers at a residence. The employee successfully swapped out the transformer and began connecting the existing wires. At some…
Where and how often it was cited
Free toolbox talk
A 5-minute crew talk on 1910.269(l)(3)(iii)(B), plus alerts when this rule changes. Free.
OSHA interpretation letters
None exist. OSHA has not published a letter of interpretation for 1910.269(l)(3)(iii)(B).
Related parts of this rule
- 1910.269(l) Working on or near exposed energized parts 75 citations
- 1910.269(l)(3) Minimum approach distances 28 citations
- 1910.269(l)(3)(iii) 26 citations
- 1910.269(l)(8) Protection from flames and electric arcs 18 citations
- 1910.269(l)(1) General 13 citations
- 1910.269(l)(8)(v) 9 citations
- 1910.269(l)(1)(ii) 6 citations
- 1910.269(l)(5) Working position 6 citations
- 1910.269(l)(1)(iii) 5 citations
- 1910.269(l)(3)(iii)(A) 5 citations
- 1910.269(l)(5)(ii) 5 citations
- 1910.269(l)(2) At least two employees 4 citations
Get your crew competent
Trainers on Black Belt Safety: Marc Harvey, Dana Reyes
Trainers and suppliers: feature your business on this rule for $25/month.
Frequently asked questions
What condition does this paragraph describe?
The energized part is insulated from the employee and from any other conductive object at a different potential.
Is insulation from the worker alone enough?
No, it must also be insulated from any other conductive object at a different potential.
Is this one of several options?
Yes, the paragraph ends with "or," meaning it is one of a list of conditions.
About this page
Sources
- 29 CFR 1910.269 (eCFR), text current as of 2026-10-15
- U.S. Department of Labor enforcement data: OSHA inspections, citations and accident records, copied nightly; data as of 2026-10-24
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.