Fire protection
32.7.1. No combustible structure other than the headframe
should be erected over a shaft or a tunnel mouth.
32.7.2. No combustible structure, such as a storage building,
should be built within 30 m (100 ft) of a shaft, tunnel mouth,
hoisting-engine house or ventilation-fan house.
32.7.3. No flammable oils or other highly flammable material
should be stored within 30 m (100 ft) of a shaft, tunnel mouth or
explosives magazine.
Electricity