780. Lighting in mines.

The mine operator1 must ensure that suitable and sufficient artificial lighting is provided in every part of the mine2 below ground where persons work or pass3. The duty does not apply in any part of the mine where artificial lighting is unnecessary because of the amount of light emitted by personal lamps or for any other reason4. The mine operator must ensure that suitable and sufficient emergency lighting is provided in every place above ground at a mine where a person is likely to be exposed to significant risk in the event of a failure of artificial lighting5. If