sec.176Telephonic communication

### sec.176 Telephonic communication The site senior executive for an underground mine must ensure the mine’s telephonic communication system complies with this section and has an adequate failsafe, or backup, power supply for the system. The system’s electrical components installed underground must be suitable for use in an ERZ0, unless the components are installed in a drift or shaft being driven from the surface in material other than coal. The system must provide for effective telephonic communication to and from the following places at the mine— each entrance underground, and on the surface, through which a person may enter into a shaft or other excavation used for ingress to or egress from the mine workings; each underground battery charging station; each underground workshop; each underground crib room; a place close to each switchgear used to isolate or control sections of the underground main electricity distribution system; a place close to each underground conveyor belt drivehead; a place close to each underground loading or transfer point on the conveyor belt system; each emergency refuge chamber; a place in each inspection district in the mine not otherwise mentioned in paragraphs (a) to (h) . (sec.176-ssec.1) The site senior executive for an underground mine must ensure the mine’s telephonic communication system complies with this section and has an adequate failsafe, or backup, power supply for the system. (sec.176-ssec.2) The system’s electrical components installed underground must be suitable for use in an ERZ0, unless the components are installed in a drift or shaft being driven from the surface in material other than coal. (sec.176-ssec.3) The system must provide for effective telephonic communication to and from the following places at the mine— each entrance underground, and on the surface, through which a person may enter into a shaft or other excavation used for ingress to or egress from the mine workings; each underground battery charging station; each underground workshop; each underground crib room; a place close to each switchgear used to isolate or control sections of the underground main electricity distribution system; a place close to each underground conveyor belt drivehead; a place close to each underground loading or transfer point on the conveyor belt system; each emergency refuge chamber; a place in each inspection district in the mine not otherwise mentioned in paragraphs (a) to (h) . - (a) each entrance underground, and on the surface, through which a person may enter into a shaft or other excavation used for ingress to or egress from the mine workings; - (b) each underground battery charging station; - (c) each underground workshop; - (d) each underground crib room; - (e) a place close to each switchgear used to isolate or control sections of the underground main electricity distribution system; - (f) a place close to each underground conveyor belt drivehead; - (g) a place close to each underground loading or transfer point on the conveyor belt system; - (h) each emergency refuge chamber; - (i) a place in each inspection district in the mine not otherwise mentioned in paragraphs (a) to (h) .