Coaxial cable for locomotive and manufacturing method thereof
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 and temperature resistance performance Requirements, improve the effect of shielding attenuation
Active Publication Date: 2022-05-13
ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD +3
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- Abstract
- Description
- 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, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[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 sheath 4 which are sheathed sequentially from the inside to the outside, and the insulating layer 2 includes an inner insulating layer 21 and an outer sheath which are arranged inside and outside. The insulating layer 22, the double-braided shielding layer 3 contains the inner wire hot-melt adhesive braiding layer 31 and the outer wire braiding layer 32; the inner insulating layer 21 and the outer insulating layer 22 are non-foaming structures, and the inner insulating layer The composition of 21 is LDPE and insulating adhesive, the material...
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Abstract
The invention provides a coaxial cable for a locomotive and a manufacturing method thereof, the coaxial cable for the locomotive comprises a stranded conductor core (1), an insulating layer (2), a double-braided shielding layer (3) and a protective sleeve (4) which are sequentially sleeved from inside to outside, and the insulating layer (2) comprises an inner insulating layer (21) and an outer insulating layer (22) which are sleeved inside and outside. And the double-braided shielding layer (3) comprises an inner metal wire hot melt adhesive braided layer (31) and an outer metal wire braided layer (32) which are sleeved inside and outside. The coaxial cable for the locomotive not only can ensure the consistency of the loss of the coaxial cable and the consistency of the voltage standing wave ratio in a dynamic state, but also can 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 method for manufacturing 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. According to different occasions, purposes, functions, etc., they can be divided into stations, lines, locomotives; high voltage and low voltage; power, control, wireless communication and instrumentation. Computer etc. The consistency of shielding attenuation, dynamic bending, and oil resistance of the sheath of the existing cables are difficult to meet. Contents of the invention [0003] In order to improve the performance of communication cables for rail transit, the invention provides a coaxial cable for locomotives and a manufacturing method thereof. The coaxial cable for locomotives can ensure the consistency of the coaxial cable loss and the high vo...
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