(1) Adequate illumination by electricity as per relevant standards shall be provided in the mines:
Provided that in a belowground coal mine, such lighting fixtures shall be of a type approved by the Chief Inspector of mines:
Provided further that one or more flame safety lamps or such lighting system approved by the Chief Inspector of mines shall be maintained in all places where failure of the electric light at any time shall be prejudicial to safety:
[भाग III—खण्ड 4] भारतकाराजपत्र:असाधारण 135
Provided also that in a belowground metalliferous mine or any open cast mine or oil-fields, such lighting fixtures shall be suitable for the type of application conforming to the relevant standards or harmonised standards, and adequate emergency lighting system shall be maintained in all places where failure of the electric light at any time shall be prejudicial to safety.
(2) Efficient means of communication shall be provided in every mine between the point where the switchgear under sub-regulation (1) of regulation 107 is erected, the shaft bottom and other distributing centres in the mines.
(3) Fire extinguishing appliances of adequate capacity and of an approved type as per relevant standards as amended from time to time shall be installed and properly maintained in every place in a mine containing apparatus, other than cables, telecommunication and signalling apparatus.
(4) In case of mines, minimum clearance above ground of the lowest conductor of overhead lines or overhead cables where dumpers or trackless vehicles are being operated, shall not be less than twelve metre in height from the ground across the road where dumpers or trackless vehicles cross:
Provided that where dumper bucket in raised position, the clearance between the top of dumper body and to the lowest conductor of overhead lines or overhead cables shall not be less than one metre.