A kind of coaxial cable for locomotive and its manufacturing method
A technology for coaxial cables and manufacturing methods, which is applied in the field of manufacturing coaxial cables for locomotives, can solve the problems of cable shielding attenuation consistency, dynamic bending sheath oil resistance, etc., to ensure oil resistance, improve shielding attenuation, The effect of temperature resistance environment performance requirements
Active Publication Date: 2022-07-05
ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD +3
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- Claims
- Application Information
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Problems solved by technology
The consistency of shielding attenuation, dynamic bending, and sheath oil resistance of existing cables are difficult to meet
Method used
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[0040] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
[0041] A coaxial cable for a locomotive, comprising a stranded conductor core 1, an insulating layer 2, a double-braided shielding layer 3 and a protective sleeve 4, which are sheathed from the inside to the outside in sequence, and the insulating layer 2 includes an inner insulating layer 21 and an outer sheath. The insulating layer 22 and the double-braided shielding layer 3 contain an inner metal wire hot melt adhesive braided layer 31 and an outer metal wire braided layer 32 provided on the inner and outer layers; the inner insulating layer 21 and the outer insulating layer 22 are both non-foamed structures, and the inner insulating layer The composition of 21 is LD...
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Abstract
The invention provides a coaxial cable for a locomotive and a manufacturing method thereof. The coaxial cable for a locomotive comprises a stranded conductor core (1), an insulating layer (2), a double braided shielding layer ( 3) and the protective sleeve (4), the insulating layer (2) contains an inner insulating layer (21) and an outer insulating layer (22) provided on the inner and outer layers, and the double-braided shielding layer (3) contains an inner metal wire hot-melt provided on the inner and outer layers. The glue braided layer (31) and the outer wire braided layer (32). The coaxial cable for locomotive can not only ensure the consistency of the coaxial cable loss and the voltage standing wave ratio under dynamic conditions, but also improve the shielding attenuation and bending performance of the cable.
Description
technical field [0001] The invention relates to a coaxial cable for a locomotive, and also relates to a manufacturing method of the coaxial cable for a locomotive. Background technique [0002] At present, rail transit construction is booming, and there are many types of communication wires and cables for rail transit, which can be divided into stations, lines, locomotives; high voltage and low voltage; computer etc. The uniformity of shielding attenuation, dynamic bending, and oil resistance of sheathing of existing cables are difficult to meet. SUMMARY OF THE INVENTION [0003] In order to improve the performance of the communication cable for rail transit, the present invention provides a coaxial cable for a locomotive and a manufacturing method thereof. The coaxial cable for a locomotive can not only ensure the consistency of the loss of the coaxial cable under dynamic conditions and the stability of the voltage standing wave ratio Consistency, and can improve the sh...
Claims
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IPC IPC(8): H01B11/18H01B7/02H01B7/04H01B7/22H01B7/28H01B7/295H01B13/016H01B13/14H01B13/22H01B13/26
CPCH01B11/18H01B11/1821H01B7/0216H01B7/0275H01B7/041H01B7/228H01B7/2806H01B7/295H01B13/016H01B13/141H01B13/225H01B13/2606Y02A30/00
Inventor 许波华田庆涛欧东东许睿缪艳华赵国玉冯良平
Owner ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD