32.8. Electricity
32.8.1. Electrical installations in shafts and tunnels should comply with the requirements of Chapter 17 and with the require- ments of this section.
Cutting offpower on surface
32.8.2.
Main switchgear for cutting off the supply of electri-
city from all underground installations should:
be installed on the surface;
be accessible only to authorised persons; and
be attended by a competent person authorised to operate it