Title 30 — Mineral Lands and Mining
Chapter 22 — Mine Safety and Health
§ 870. Trolley wires and trolley feeder wires
Statutory text
Intervals for cutoff switches
Trolley wires and trolley feeder wires shall be provided with cutout switches at intervals of not more than 2,000 feet and near the beginning of all branch lines.
Overcurrent protection devices
Trolley wires and trolley feeder wires shall be provided with overcurrent protection.
Location of wires
Trolley wires and trolley feeder wires, high-voltage cables and transformers shall not be located inby the last open crosscut and shall be kept at least 150 feet from pillar workings.
Adequate insulation and guard devices; promulgation of safety guidelines
Trolley wires, trolley feeder wires, and bare signal wires shall be insulated adequately where they pass through doors and stoppings, and where they cross other power wires and cables. Trolley wires and trolley feeder wires shall be guarded adequately (1) at all points where men are required to work or pass regularly under the wires; (2) on both sides of all doors and stoppings; and (3) at man-trip stations. The Secretary or his authorized representatives shall specify other conditions where trolley wires and trolley feeder wires shall be adequately protected to prevent contact by any person, or shall require the use of improved methods to prevent such contact. Temporary guards shall be provided where trackmen and other persons work in proximity to trolley wires and trolley feeder wires.
Legislative history
Reconstructed from this section’s Code source credit and amendment notes, resolved against the local Statutes at Large. Editorial notes are evidence, not the law that made the change.
Federal Coal Mine Health and Safety Act of 1969
Pub. L. 91–173 title III § 310 · 83 Stat. 742
Enacted · 30 U.S.C. § 870
(Pub. L. 91–173, title III, § 310, Dec. 30, 1969, 83 Stat. 783.)
Source evidence
Code source credit
(Pub. L. 91–173, title III, § 310, Dec. 30, 1969, 83 Stat. 783.)Enacted provision · exact public law section
Sec. 310. trolley wires and trolley feeder wires (a) Trolley wires and trolley feeder wires shall be provided with cutout switches at intervals of not more than 2,000 feet and near the beginning of all branch lines. (b) Trolley wires and trolley feeder wires shall be provided with overcurrent protection. (c) Trolley wires and trolley feeder wires, high-voltage cables and transformers shall not be located inby the last open crosscut and shall be kept at least 150 feet from pillar workings. (d) Trolley wires, trolley feeder wires, and bare signal wires shall be insulated adequately where they pass through doors and stoppings, and where they cross other power wires and cables. Trolley wires and trolley feeder wires shall be guarded adequately (1) at all points where men are required to work or pass regularly under the wires; (2) on both sides of all doors and stoppings; and (3) at man-trip stations. The Secretary or his authorized representatives shall specify other conditions where trolley wires and trolley feeder wires shall be adequately protected to prevent contact by any person, or shall require the use of improved methods to prevent such contact. Temporary guards shall be provided where trackmen and other persons work in proximity to trolley wires and trolley feeder wires.
1 of 1 references resolved to an enrolled provision
Statutory Notes and Related Subsidiaries
Effective Date
Section operative 90 days after , except to the extent an earlier date is specifically provided for in Pub. L. 91–173, see section 509 of Pub. L. 91–173, set out as a note under section 801 of this title.