Do not treat it as a replacement for mine-specific equipment. Underground mines susceptible to firedamp use a different equipment-group context, and local mine rules and operator acceptance also apply. Selection must be made against the actual mine requirements and certificate scope.
Underground roadways
Record tunnel dimensions, mounting positions, traffic and obstructions. Plan visibility along the route and at changes in direction or level. Coordinate spacing with supports, cables and other services, and account for dirt accumulation and access for inspection.



