The light constructions for belt conveyors get mainly installed in the gangways close to the working areas: for the transport of coal and, by using a smaller angle of transverse, for man riding on the bottom strand.
DIN 22111:2000 history
2007DIN 22111:2007-11 Belt conveyors for underground coal mining - Light construction
2007DIN 22111:2007 Belt conveyors for underground coal mining - Light construction
2000DIN 22111:2000 Belt conveyors for underground coal mining - Light construction