Queensland Consolidated Regulations

COAL MINING SAFETY AND HEALTH REGULATION 2017 - REG 250A

250A Action to be taken if automatic methane detector non-operational in roof fall

(1) An underground mine must have a standard operating procedure for taking action if—

(a) a roof fall causes an automatic methane detector mentioned in section 243A to fail in service; and

(b) the detector cannot be immediately replaced or repaired.

(2) The procedure must provide that—

(a) the automatic methane detector or the cable for the detector must be replaced or repaired as soon as practicable; and

(b) the armoured face conveyor or the longwall shearer may be operated—

(i) only to clear the roof fall or recover the cable for the detector; and

(ii) only while the conditions mentioned in subsection (3) apply.

(3) For subsection (2) (b) (ii) , the conditions are—

(a) the ERZ controller uses a portable methane detector to continuously monitor the general body concentration of methane in the area of the roof fall; and

(b) the general body concentration of methane in the area of the roof fall is less than 1.25%; and

(c) the general body concentration of methane at the longwall face and in the longwall return airway is less than 2%.