Flexicon has supplied 40km of flexible conduit to protect cabling on 361 high altitude carriages for the world's highest railway in Tibet. Rising to an altitude of 5000m above sea level, the conduit has to withstand temperatures down to -50degC and protect the cabling from snow, grit and dirt as well as ball lighting. The flexible conduit has a metal interior to provide strength and a plastic outer covering. It has an IP68 rating since it is often immersed in freezing water with the build up of snow.