Virginia Administrative Code
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
Section 4VAC25-40-4360 - Diameter specifications
Universal Citation: 4 VA Admin Code 4VAC25-40-4360
Current through Register Vol. 41, No. 3, September 23, 2024
Diameters of head sheaves and hoist drums shall conform to the following specifications:
| Rope construction | Diameter of sheave and drum | |
| Recommended Times rope diameter | Minimum Times rope diameter | |
| 6 x 7 classification | 72 | 42 |
| 6 x 19 | 45 | 30 |
| 6 x 37 | 20 | 18 |
| 6 x 25 type B, flattened strand | 45 | 30 |
| 6 x 27 type H, flattened strand | 45 | 30 |
| 6 x 30 type G, flattened strand | 45 | 30 |
| 18 x 7 classification | 51 | 34 |
Statutory Authority
§§ 45.1-161.3 and 45.1-161.294 of the Code of Virginia.
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