Hard EPR (ethylene propylene rubber) insulated instrument cable for ships and oceans and manufacturing method thereof

Abstract

The invention discloses a hard EPR (ethylene propylene rubber) insulated instrument cable for ships and oceans and a manufacturing method thereof. An insulated core wire formed by a hard EPR insulated layer wraps the periphery of a conductor; two or three insulated core wires are stranded to form an insulated core wire beam; the periphery of the insulated core wire beam is wrapped by an insulated core wire copper foil polyester composite belt to form a control cable insulated wire core; the inner wall of the insulated core wire copper foil polyester composite belt is provided with an insulated core wire tinned copper wire leakage line; multiple control cable insulated wire cores are stranded into a cable, the periphery of the cable is wrapped by a cable copper foil polyester composite belt, and the inner wall of the cable copper foil polyester composite belt is provided with a cable tinned copper wire leakage line; and the periphery of the cable copper foil polyester composite belt is extruded and wrapped by an LSZH (low smoke zero halogen) inside layer, the periphery of the LSZH inside layer is wrapped by a non-hygroscopic isolation belt in a winding manner, the periphery of the non-hygroscopic isolation belt is wrapped by a metal armor layer, the periphery of the metal armor layer is provided with a longitudinal polyester film belt, and the periphery of the longitudinal polyester film belt is extruded and wrapped by an LSZH outer sheath. The cable has good shield and insulation performances.

Description

technical field [0001] The invention relates to an instrument cable, in particular to a hard ethylene propylene rubber insulated instrument cable for ships and oceans; the invention also relates to a manufacturing method for a hard ethylene propylene rubber insulated instrument cable for ships and oceans. Background technique [0002] Due to the particularity of the operating environment of ships and marine engineering equipment and the use of high-power power equipment, higher and higher technical performance requirements are put forward for the supporting instrument cables, among which the most typical requirements are soft, low-smoke and halogen-free, It has good water repellency and corrosion resistance, high strength, good tensile performance, and is not easy to age. Due to the narrow space of the ship, etc., it is also necessary for the instrument cable to be small in size and light in weight. [0003] Traditional marine instrument cables mostly use copper wire braidi...

AI Technical Summary

Problems solved by technology

[0003] Traditional marine instrument cables mostly use copper wire braiding or aluminum foil polyester composite tape wrapping and copper wire leakage wire shielding. Copper wire braiding shielding cannot achieve 100% coverage due to the gaps in the braiding; while aluminum foil polyester composite tape wrapping shielding Although 100% coverage can be achieved, the shielding performance of the aluminum foil polyester composite tape itself is poor, and it is difficult to achieve a good shielding effect

[0004] In addition, at present, ordinary ethylene-propylene rubber insulation is mostly used for ship and marine instrument cables. Ordinary ethylene-propylene rubber has low insulation resistance, poor mechanical properties, and poor aging performance. Requirements for light weight and increased payload of ships and offshore engineering equipment

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