Flexible wires have proven themselves well as a power cable on rail contact collectors, pantograph-type pantograph pantographs, as well as a grounding cable for wheel pairs, clutch blocks and on cranes of rail vehicles. Flexible wire can be easily installed even in confined spaces thanks to its extremely flexible design. The transparent insulation provides a constant overview of the condition of the flexible wire. The B 108 wire has a protective copper braid under a layer of insulation, which provides additional protection when used under higher mechanical stress.