{"data":{"id":"us-va/4vac25-40-4240","jurisdiction":"us-va","citation":"4VAC25-40-4240","heading":"Installation of wire ropes","body":"At installation, the nominal strength (manufacturer's published catalog strength) of wire ropes used for hoisting shall meet the minimum rope strength values obtained by the following formulas in which \"L\" equals the maximum suspended rope length in feet:\n\n1. Winding drum ropes (all constructions, including rotation resistant):\n\nFor rope lengths less than 3,000 feet:\n\nMinimum Value = Static Load X (7.0 - 0.001L)\n\nFor rope lengths 3,000 feet or greater:\n\nMinimum Value = Static Load X 4.0\n\n2. Friction drum ropes:\n\nFor rope lengths less than 4,000 feet:\n\nMinimum Value = Static Load X  (7.0 -  0.0005L)\n\nFor rope lengths 4,000 feet or greater:\n\nMinimum Value = Static Load X 5.0\n\n3.  Tail ropes (balance ropes):\n\nMinimum Value = Weight of Rope X 7.0","path":["Title 4. Conservation And Natural Resources","Agency 25. Department of Energy","Chapter 40. Safety and Health Regulations for Mineral Mining","Part XV. Safety and Health Regulations—Underground Only","Article 10. Personnel Hoisting"],"source_url":"https://law.lis.virginia.gov/admincode/title4/agency25/chapter40/section4240/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:46:08Z","sha256":"bf2ca30ffe498b58cbc4e58505564d18553366a328bc84c3b424f0d0072bb1d5","source_id":"us-va-vac","stale":false,"prev":"us-va/4vac25-40-4230","next":"us-va/4vac25-40-4250"},"notice":"GroundRules: Original legal text. Not legal advice."}