Leading up wire plugging structure used for rail vehicle and installation and wiring method thereof

The invention relates to a leading up wire plugging structure used for a rail vehicle and an installation and wiring method thereof, and belongs to the field of rail vehicle wiring. The leading up wire plugging structure used for the rail vehicle comprise a flange which is arranged at a through hole used for cables within and outside the vehicle; a support detachably connected with the flange, wherein the flange is provided with installation holes, the support is provided with support installation feet and a band connection part, the support installation feet are connected with the installation holes in the flange through bolts, and the cables are fixed on the band connection part; and a foaming sealant which is used for sealing the gaps between the flange and a wire harness. According to the invention, the effect of effectively sealing and isolating the inner part and the outer part of the vehicle is realized, so that faults of equipment within and outside the vehicle, caused by poor temperature, humidity and dust concentration, are prevented; in addition, the compatibility of the leading up wire plugging structure with materials such as cables is good, the maintenance and changing are convenient, the application range is wide, the cost is low, and the waste phenomenon is prevented, etc.