sec.303AExplosion barriers

### sec.303A Explosion barriers The underground mine manager for an underground mine must ensure— explosion barriers are installed and maintained in the part of each of the following roadways within an ERZ1 in a part of the mine where coal is being extracted— a return roadway; a single entry drive; a roadway in which a coal conveyor is installed; or explosion barriers that are active barriers, devices or systems are installed and maintained on plant within an ERZ1 in a part of the mine where coal is being extracted in a way that would prevent the propagation of a coal dust explosion to a place mentioned in paragraph (a) . The underground mine manager must also ensure explosion barriers are installed and maintained in a place in the mine, other than a place at which an explosion barrier is installed and maintained in compliance with subsection (1) , identified by a risk assessment for the mine. homotropal conveyor roadways and return bleeder roadways not within an ERZ1 in a part of the mine where coal is being extracted In this section— explosion barrier means— a barrier, device or system constructed, installed and maintained in compliance with a recognised standard for barriers, devices or systems known as explosion barriers; or another barrier, device or system that achieves a level of risk that is equal to or better than the acceptable level of risk achieved by a barrier, device or system mentioned in paragraph (a) . s 303A ins 2020 SL No. 221 s 5 amd 2021 SL No. 186 s 3 (sec.303A-ssec.1) The underground mine manager for an underground mine must ensure— explosion barriers are installed and maintained in the part of each of the following roadways within an ERZ1 in a part of the mine where coal is being extracted— a return roadway; a single entry drive; a roadway in which a coal conveyor is installed; or explosion barriers that are active barriers, devices or systems are installed and maintained on plant within an ERZ1 in a part of the mine where coal is being extracted in a way that would prevent the propagation of a coal dust explosion to a place mentioned in paragraph (a) . (sec.303A-ssec.2) The underground mine manager must also ensure explosion barriers are installed and maintained in a place in the mine, other than a place at which an explosion barrier is installed and maintained in compliance with subsection (1) , identified by a risk assessment for the mine. homotropal conveyor roadways and return bleeder roadways not within an ERZ1 in a part of the mine where coal is being extracted (sec.303A-ssec.3) In this section— explosion barrier means— a barrier, device or system constructed, installed and maintained in compliance with a recognised standard for barriers, devices or systems known as explosion barriers; or another barrier, device or system that achieves a level of risk that is equal to or better than the acceptable level of risk achieved by a barrier, device or system mentioned in paragraph (a) . - (a) explosion barriers are installed and maintained in the part of each of the following roadways within an ERZ1 in a part of the mine where coal is being extracted— (i) a return roadway; (ii) a single entry drive; (iii) a roadway in which a coal conveyor is installed; or - (i) a return roadway; - (ii) a single entry drive; - (iii) a roadway in which a coal conveyor is installed; or - (b) explosion barriers that are active barriers, devices or systems are installed and maintained on plant within an ERZ1 in a part of the mine where coal is being extracted in a way that would prevent the propagation of a coal dust explosion to a place mentioned in paragraph (a) . - (i) a return roadway; - (ii) a single entry drive; - (iii) a roadway in which a coal conveyor is installed; or - (a) a barrier, device or system constructed, installed and maintained in compliance with a recognised standard for barriers, devices or systems known as explosion barriers; or - (b) another barrier, device or system that achieves a level of risk that is equal to or better than the acceptable level of risk achieved by a barrier, device or system mentioned in paragraph (a) .