DIN EN 12929-2-2015 载人用索道装置的安全要求.一般要求.第2部分:无平板式载货汽车制动装置的双向双缆架空索道的补充要求;德文版本EN 12929-2-2015
Safety requirements for cableway installations designed to carry persons - General requirements - Part 2: Additional requirements for reversible bicable aerial ropeways without carrier truck brakes; German version EN 12929-2:2015