Low-smoke halogen-free motor train unit cable

Abstract

The invention belongs to the technical field of cables, and discloses a low-smoke halogen-free motor train unit cable. The low-smoke halogen-free motor train unit cable comprises a cable body, a plurality of rubber reinforcing sleeves are slidably connected to the outer side of the cable body, a plurality of evenly-distributed annular bending grooves are formed in the outer side wall of each rubber reinforcing sleeve, a plurality of elastic metal bars are fixedly inserted into the end of each rubber reinforcing sleeve, the left end and the right end of each rubber reinforcing sleeve are each fixedly connected with a set of arc-shaped blocks, the two arc-shaped blocks in the same set are located on the upper side and the lower side of the rubber reinforcing sleeve on the same side and are symmetrically arranged about the axis of the cable body, threaded holes are formed in the front sides and the rear sides of the upper ends of the two arc-shaped blocks in the same set. According to the low-smoke halogen-free motor train unit cable, damage of bending and vibration to the cable can be reduced, adjustment can be carried out at will according to the bending position, the application range of the cable is large, and the use of the cable is convenient; and maintenance personnel can conveniently find a cable damage problem in advance, and the use safety of the cable is improved.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to low-smoke and halogen-free EMU cables. Background technique [0002] Low-smoke halogen-free cables refer to environmentally friendly cables that do not contain halogens (F, Cl, Br, I, At), lead, cadmium, chromium, mercury and other environmental substances, and do not emit toxic smoke when burned. Due to the relatively narrow interior space and poor ventilation of the EMU, in order to reduce the impact of fire smoke, the cables in the EMU often use low-smoke and halogen-free materials. [0003] At present, when the cables in the EMU are laid, due to the relatively narrow internal space, the laying of the cable needs to go through many bends, and the force at the bend itself is relatively large. Large vibrations will cause greater damage to the bend of the cable, often causing damage to the surface of the bend of the cable, and will easily affect its internal core for a long time....

AI Technical Summary

Problems solved by technology

[0003] At present, when the cables in the EMU are laid, due to the relatively narrow internal space, the laying of the cable needs to go through many bends, and the force at the bend itself is relatively large. Large vibrations will cause greater damage to the bend of the cable, often causing damage to the surface of the bend of the cable, and will easily affect its internal core for a long time. Therefore, a low-smoke halogen-free EMU cable is proposed.

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