# welding-suspension-rope-insulation-minimum-extent — Every numeric dimensional tolerance and safety factor in OSHA's scaffold general requirements (29 CFR 1926.451)

For welding-suspension-rope-insulation-minimum-extent, paragraph citation is 1926.451(f)(17)(ii); type of requirement is minimum length; value (imperial) is 4 feet; value (metric) is 1.2 m; applies to is the suspension wire rope when performing welding from suspended scaffolds, recorded from its source on 2026-09-01; source re-checked 2026-09-14.

- **Requirement ID:** welding-suspension-rope-insulation-minimum-extent _(our reading, not quoted from the source)_
- **Paragraph citation:** 1926.451(f)(17)(ii) _(our reading, not quoted from the source)_
- **Type of requirement:** minimum length _(our reading, not quoted from the source)_
- **Value (imperial):** 4 feet _(verified: appears in the quote below)_
- **Value (metric):** 1.2 m _(verified: appears in the quote below)_
- **Applies to:** the suspension wire rope when performing welding from suspended scaffolds _(verified: appears in the quote below)_
- **Regulation section heading:** Use _(verified: appears in its own passage below)_

## What the source says

> (17) To reduce the possibility of welding current arcing through the suspension wire rope when performing welding from suspended scaffolds, the following precautions shall be taken, as applicable: (i) An insulated thimble shall be used to attach each suspension wire rope to its hanging support (such as cornice hook or outrigger). Excess suspension wire rope and any additional independent lines from grounding shall be insulated; (ii) The suspension wire rope shall be covered with insulating material extending at least 4 feet (1.2 m) above the hoist.

## Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

### Regulation section heading

> (f) Use.

## Source

- https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1926/subpart-L/section-1926.451

Last verified: 2026-09-14. Review by: 2027-09-01.
Part of [Every numeric dimensional tolerance and safety factor in OSHA's scaffold general requirements (29 CFR 1926.451)](https://referencesource.org/osha-scaffold-dimensional-tolerances/).