Thin-wall crosslink low smoke cables for ships communication or control signal and preparation method thereof

Abstract

The invention relates to a thin-wall crosslink low smoke cable for ships communication or control signal and a preparation method thereof. The cable structure is that the outer layer of a multi-strandconductor is an insulating layer, the outer layer of the insulating layer is a shielding layer, the outer layer of the shielding layer is a lapped covering, the outer layer of the lapped covering isarmor, and the outer layer of the armor is a sheathed layer. The preparation method is as follows: a line-cable stranding machine strands tin plated copper wire as a conductor; an extruder is utilizedto manufacture the insulating layer outside the conductor, the insulating layer is subjected to irradiation and crosslinking by an electron accelerator; a cable former is ustilized to strand insulated wires together; the shielding layer and the armor are braided by utilizing a braiding machine; and the sheathed layer is manufactured by the extruder, and the sheathed layer is subjected to irradiation and crosslinking by the electron accelerator. The thin-wall crosslink low smoke cable has the advantages of small outside diameter, light weight, ageing resistance, tear resistance, heat oil resistance, high flame retardancy, low smoke, no halogen, low toxicity and good ability of keeping excellent electrical performance and mechanical property in hostile environment, wherein the weight of thethin-wall crosslink low smoke cable is 30%-45% lighter than that of common cables.

Description

Technical field: [0001] The invention is a thin-walled cross-linked low-smoke cable for ship communication and control signals and its preparation process, which is suitable for the environment of floating buildings such as warships, river and sea ships, and offshore oil platforms, and is used for instrument and instrument signal control and signal control. transmission. Background technique: [0002] At present, the most advanced cable standard for ships in the world is MIL-DTL-24643. The current US military standard MIL-DTL-24643 2002 is composed of two parts. General specification for smoke cables and cords, the second part is MIL-DTL-24643 / 2 2002~MIL-DTL-24643 / 58 2002 Detailed specifications for low-smoke cables and cords for ships. MIL-DTL-24643 2002 Marine low-smoke cables and cords series detailed specification covers cables and cords for power, lighting, control, communication, instrumentation and electronic equipment of various ships. According to the insulating m...

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Problems solved by technology

[0003] Ordinary ship cables have large outer diameter, large volume, heavy weight, and large bending radius, which require a large laying space and do not use installation

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