Insulating ethylene propylene rubber LSOH electric power or control cable for ships and warships and processing method thereof

Abstract

The invention discloses an insulating ethylene propylene rubber LSOH electric power or control cable for ships and warships and a processing method thereof. Multi-strand tinned copper wires twisted conductor is adopted and an extruded ethylene propylene rubber insulating layer is covered on the outer surface of the conductor. Three-core or four-core insulating wires are twisted together. An armorlayer is arranged between three insulating cores and a jacket layer. The outer of the armor layer is provided with the jacket layer. An inner jacket layer is arranged between four insulating cores andthe armor layer. The armor layer is arranged between the inner jacket layer and the jacket layer. The processing method comprises the steps of twisting tinned copper wires with a wire twisting machine to form a conductor, manufacturing the insulating layer outside of the conductor with an extruding machine, irradiating and cross-linking the insulating layer with an electron accelerator, twistingthe insulating cores with a cable-former, braiding the armor layer with a braiding machine, and extruding an oil-proof LSOH jacket layer outside of the armor layer. The invention has the advantages that the products meet the performance demand of the cables for ships and warships, according with the GJB1916-94 general specification for low smoke cable and flexible cord for ships and warships.

Description

Technical field: [0001] The invention relates to an ethylene-propylene rubber insulated low-smoke and halogen-free power or control cable for ships and a processing method thereof. The ship cables are used in the environment of floating structures such as warships, river and sea ships, and offshore oil platforms. , used for power transmission of lighting and equipment instruments and meters. It belongs to the technical field of low-smoke cables for ships. 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. [0003] my country has promulgated and implemented GJB1916-94 "General Specifications for Low-Smoke Cables and Cords for Ships" in 1994, but there are no...

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Problems solved by technology

[0003] my country has promulgated and implemented GJB1916-94 "General Specifications for Low Smoke Cables and Cords for Ships" in 1994, but there are no detailed specifications for specific products.

At the same time, the traditional ethylene-propylene rubber insulation is vulcanized through a high-pressure steam pipe with a length of about 100 meters after being extruded through a special rubber extruder through the mixing and kneading process. This processing method is not easy for the outer diameter and concentricity of the product Control, and the production energy consumption is large, the process is complicated, and the cost is high

Generally small and medium-sized cable manufacturers do not have the plant and equipment for such production

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