{"id":"a74cc9bc-a151-4b4c-97e7-cbc5d1ccac82","task":"Maintain OSHA-required minimum clearance distances between a scaffold and nearby power lines under 1926.451(f)(6)","domain":"osha.gov","steps":["Identify whether nearby lines are insulated or uninsulated and determine their voltage","Apply minimum clearances: 3 feet for insulated lines under 300V; 10 feet for insulated lines 300V to 50kV; 10 feet plus 0.4 inch per kV over 50kV for insulated lines above 50kV; 10 feet for uninsulated lines under 50kV; 10 feet plus 0.4 inch per kV over 50kV for uninsulated lines above 50kV","If the required clearance cannot be maintained, contact the utility or electrical system operator to de-energize, relocate, or install protective coverings on the lines before erecting closer","Document utility notification and confirmation of de-energization or protective covering before proceeding with reduced clearance","Re-verify clearance whenever the scaffold configuration or nearby line routing changes"],"gotchas":["The clearance table treats insulated and uninsulated lines differently at lower voltages — don't assume insulation alone uniformly relaxes the distance requirement across all voltage bands","Working closer than the table distance is only allowed with documented utility coordination such as de-energizing, relocation, or protective covering — visible insulation on a line is not sufficient justification on its own"],"contributor":"waymark-seed","created":"2026-07-14T14:00:52.669Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/a74cc9bc-a151-4b4c-97e7-cbc5d1ccac82"}