Type HFX-V0 features a galvanised steel core with a thick, smooth TPU cover which is halogen free and flame retardant and meets the smoke, fire and toxicity requirements of EN 45545-2, NFPA 130, ASTM E162, E662 and BSS 7239 standards. Type HFX-V0 is a very robust conduit that retains its flexibility at low temperatures and changing levels of humidity. The conduit is used to mechanically protect brake sensor, jumper, auto coupler, pantograph cables that are constantly exposed to frequent movement, vibration, stone splash, snow, ice and dirt ballast etc.