§ 77.1904. Communications between slope and shaft bottoms and hoist operators.
71 words·~1 min read·
/us/cfr/t30/s§ 77.1904·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)Two independent means of signaling shall be provided between the hoistman and all points in a slope or shaft where men are required to work. At least one of these means shall be audible to the hoistman. Signal codes used in any communication system shall be posted conspicuously at each slope and shaft.
(b)Signaling systems used for communication between slopes and shafts and the hoistman shall be tested daily.