the high-speed electrified railway extensively adopts the flexible integral dropper with a current carrying ring. this type of suspension wire has the obvious advantages of large load, strong diversion ability and non-flammable. material of the clampe body is cuni2si, material of drooer hanging wire is jtmh10 copper-magnesium alloy strands. elliptical crimp connection is used between the clamp, the clamp tube and the string. the rigid overall dropper adopts the structure of "contact wire side crimping phosphor bronze rod insulating sheath", and the unique unloading method can suppress the formation of resonance wave.
this manual lists several commonly used dropper structure.