scope:

This document lays down requirements for automatic explosion extinguishing systems for roadheader machines (selective cut heading machines) in roadheader drivages where these systems automatically detect the initial phase of a firedamp explosion which has been initiated by the cutter head of a roadheader machine and extinguish it at the roadhead in such a way that the roadway drivage team is not put at risk. This document does not lay down any requirements for the fighting of fires at the roadhead. The automatic explosion extinguishing system for roadheaders is an autonomous protective system designed in accordance with Directive 94/9/EC.