sec.234AArmoured face conveyor

### 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%.