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Coal Mining Safety and Health Regulation 2017
sec.234AArmoured face conveyor
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### sec.234A Armoured face conveyor
An armoured face conveyor must be fitted with at least 1 automatic methane detector on each electrically-powered tailgate drive motor to detect the general body concentration of methane at the tailgate drive motor.
The detector must automatically—
activate a visible alarm to warn the operator when the concentration exceeds 1%; and
trip the electricity supply to the armoured face conveyor and the longwall shearer cutters when the concentration exceeds 2%.
See section 393 .
s 234A ins 2019 SL No. 250 s 6
amd 2020 SL No. 118 s 6
(sec.234A-ssec.1) An armoured face conveyor must be fitted with at least 1 automatic methane detector on each electrically-powered tailgate drive motor to detect the general body concentration of methane at the tailgate drive motor.
(sec.234A-ssec.2) The detector must automatically— activate a visible alarm to warn the operator when the concentration exceeds 1%; and trip the electricity supply to the armoured face conveyor and the longwall shearer cutters when the concentration exceeds 2%.
- (a) activate a visible alarm to warn the operator when the concentration exceeds 1%; and
- (b) trip the electricity supply to the armoured face conveyor and the longwall shearer cutters when the concentration exceeds 2%.