Trolley wires and trolley feeder wires shall be on intake air and shall not exceed beyond the last open crosscut or other ventilation opening. Such wires shall be kept at least 150 feet from pillar workings.
4 Va. Admin. Code § 25-40-5610
Statutory Authority
§§ 45.1-161.3 and 45.1-161.294 of the Code of Virginia.