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Coal Mining Safety and Health Regulation 2017
sec.244Intake airway intersecting with longwall face
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### sec.244 Intake airway intersecting with longwall face
At least 1 automatic methane detector must be located at the intersection between a longwall face and an intake airway.
A detector located at the intersection between a longwall face and an intake airway must automatically—
activate a visible alarm when the general body concentration of methane detected at the intersection exceeds 1%; and
trip the electricity supply to longwall equipment in the longwall face and intake airway when the general body concentration of methane detected at the intersection exceeds 2%.
See section 394 .
s 244 sub 2019 SL No. 250 s 10
amd 2020 SL No. 118 s 10
(sec.244-ssec.1) At least 1 automatic methane detector must be located at the intersection between a longwall face and an intake airway.
(sec.244-ssec.2) A detector located at the intersection between a longwall face and an intake airway must automatically— activate a visible alarm when the general body concentration of methane detected at the intersection exceeds 1%; and trip the electricity supply to longwall equipment in the longwall face and intake airway when the general body concentration of methane detected at the intersection exceeds 2%.
- (a) activate a visible alarm when the general body concentration of methane detected at the intersection exceeds 1%; and
- (b) trip the electricity supply to longwall equipment in the longwall face and intake airway when the general body concentration of methane detected at the intersection exceeds 2%.