Current through Register Vol. XLI, No. 50, December 13, 2024
Section 56-4-7 - Placement of Intrinsically Safe Battery-Powered Lights and Lifeline Cords7.1. Intrinsically safe battery-powered strobe lights approved by the Director shall be affixed to each storage cache of SCSRs and shall operate continuously or be capable of automatic activation in the event of an emergency. 7.1.1. All intrinsically safe battery-powered strobe lights affixed to each storage cache of SCSRs shall be approved by the Director and MSHA and maintained in accordance with applicable MSHA requirements.7.1.2. Prior to approval of any MSHA certified intrinsically safe battery-powered strobe light, the Director shall have prepared an independent analysis of the added risk incurred from added battery powered devices throughout the mine in the event of a catastrophic explosion.7.1.3. When determining if intrinsically safe battery-powered strobe lights present an acceptable risk, the Director shall review those rated intrinsically safe by MSHA and may approve them for use in West Virginia mines. A list of approved intrinsically safe battery-powered strobe lights shall be maintained on the MHS&T web site: https://wvminesafety.wv.gov.7.2. A reflective sign with the words "SELF-RESCUER" or "SELF-RESCUERS" shall be conspicuously posted at each such storage cache and reflective direction signs shall be posted leading to each storage cache.7.3. Lifeline cords installed in primary escape-ways shall be attached to each storage cache container and extend from the last permanent stopping to the surface or nearest escape facility, excluding belt and track entries, and must: 7.3.1. Be made of flame-resistant material;7.3.2. Be marked with reflective material every 25 feet;7.3.3. Be located in such a manner for miners to use effectively to escape; and7.3.4. Have directional indicators signifying the route of escape placed at intervals not exceeding 100 feet.7.4. In lieu of installed lifelines in track or belt entries, markers such as floor mats with arrows, fish plate reflectors, red/green lasers shall be installed at distances not to exceed 1,000 feet or line of sight, or other equivalent devices may be used if approved by the Director.