§77.1432. Initial measurement.
30 C.F.R. § 77.1432
After initial rope stretch but before visible wear occurs, the rope diameter of newly installed wire ropes shall be measured at least once in every third interval of active length and the measurements averaged to establish a baseline for subsequent measurements. A record of the measurements and the date shall be made by the person taking the measurements. This record shall be retained until the rope is retired from service.
Notes, amendments, and revision history
Amendments
[48 FR 53241, Nov. 25, 1983, as amended at 60 FR 33723, June 29, 1995]
Authority
Authority: Sections 77.1430 through 77.1438 issued under sec. 101, Federal Mine Safety and Health Act of 1977, Pub. L. 91-173 as amended by Pub. L. 95-164, 91 Stat. 1291 (30 U.S.C. 811).
Source
Source: Sections 77.1430 through 77.1438 appear at 48 FR 53241, Nov. 25, 1983, unless otherwise noted.
Authority
Authority: 30 U.S.C. 811.
Source
Source: 36 FR 9364, May 22, 1971, unless otherwise noted.
Amendments
[48 FR 53241, Nov. 25, 1983, as amended at 60 FR 33723, June 29, 1995]