A CAN refractory bus for railway

Abstract

The invention discloses a CAN refractory bus for railway include a first conductor, second conductor and a third conductor, the first refractory layer is provided with an integral fixing ring on the side of the first refractory layer away from the inner sheath, An outer sheath is provided on a side of the shield layer remote from the second refractory layer, the side of the outer sheath far away from the shielding layer is provided with an O-shaped circular arc protrusion, the surface of the inner sheath is provided with a first refractory layer, A filler is provided on the side of the integral fixing ring away from the first refractory layer, The surface of the filler is provided with a heat dissipation hole, the filler is provided with an insulating layer away from the integral fixing ring, a second refractory layer is provided on the side of the insulating layer away from the filler, and a high-temperature resistant layer is provided on the side of the reflective layer away from thefirst waterproof layer. The invention relates to the technical field of cable. The CAN refractory bus for railway achieves the effects of fire resistance, extrusion resistance and tensile resistance,has simple structure, is convenient to use, prolongs the service life, improves the safety performance and avoids the rupture of the sheath.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a CAN fire-resistant bus for railways. Background technique [0002] With the development of our country's economy, various construction projects are developing at an unprecedented scale and speed, and the requirements for electrical equipment are also getting higher and higher. In recent years, the fires caused by electricity have gradually increased, and the fires caused by wires and cables account for a considerable proportion. At present, there are various types of cables used in various markets, and the quality is uneven. Each has its own defects. For Fire safety brings certain hidden dangers. CAN is the abbreviation of Controller Area Network, and it is one of the most widely used field buses in the world. The high performance and reliability of CAN bus have been recognized and widely used in industrial automation, ships , medical equipment, industrial equipment, railways, ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a CAN fire-resistant bus for railways, which solves the problems of simple structure, inconvenient use, general fire-resistant effect, low temperature resistance, easy aging, reduced service life, no shielding function, and anti-interference The ability is poor, and the anti-extrusion and anti-stretch ability is poor, and its own strength is low. It is easy to cause the sheath to rupture under the action of external force, and it is prone to leakage problems.

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