§57.4160. Underground electric substations and liquid storage facilities.
30 C.F.R. § 57.4160
The requirements of this standard apply to underground areas only.
Areas within 25 feet of the following shall be free of combustible materials:
Electric substations.
Unburied, combustible liquid storage tanks.
Any group of containers used for storage of more than 60 gallons of combustible liquids.
This standard does not apply to installed wiring or timber that is coated with at least one inch of shotcrete, one-half inch of gunite, or other noncombustible materials with equivalent fire protection characteristics.
Notes, amendments, and revision history
Authority
Authority: 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).
Authority
Authority: 30 U.S.C. 811.
Source
Source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.