CN212322722U

CN212322722U - Marine communication and loop cable with insulating pair shielding galvanized steel wire armored polyolefin jacket

Info

Publication number: CN212322722U
Application number: CN202021322746.1U
Authority: CN
Inventors: 王仕俊; 曾广彬; 陈冠瑜; 胡仕国; 曾秀娟; 陈辉
Original assignee: Yangzhou City Hongqi Cable Making Co ltd
Current assignee: Yangzhou City Hongqi Cable Making Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-01-08
Anticipated expiration: 2030-07-08

Abstract

An insulation pair shielding galvanized steel wire armored polyolefin jacket marine communication and return cable relates to the field of cables and comprises three shielding wire pairs, wherein each shielding wire pair comprises two insulating wire cores which are twisted in opposite directions, each insulating wire core comprises an inner tinned copper conductor and an outer crosslinked polyethylene insulating layer, a pair twisting group PE thin film isolation belt is wrapped on the two twisted insulating wire cores, a tinned copper wire braided sub-shielding layer is arranged outside the pair twisting group PE thin film isolation belt, and a sub-shielding PE thin film isolation belt is wrapped on the tinned copper wire braided sub-shielding layer; the three shielded wires form a cable core, a double-layer water-blocking cloth belt is wound outside the cable core, a double-layer flame-retardant halogen-free glass fiber belt is wound outside the double-layer water-blocking cloth belt, a galvanized steel wire woven armor layer is arranged outside the double-layer flame-retardant halogen-free glass fiber belt, and a low-smoke halogen-free polyolefin outer sheath is extruded outside the galvanized steel wire woven armor layer. The utility model discloses have anti-oxidation, reduce to cross talk each other between the return circuit, prevent external shock and low nontoxic effect of cigarette.

Description

Marine communication and loop cable with insulating pair shielding galvanized steel wire armored polyolefin jacket

Technical Field

The utility model relates to a field of cable.

Background

With the rapid development of the international water transport industry, great opportunity is brought to the acceleration of the shipbuilding industry. In order to meet the matching requirements of modern electrical equipment of large ships, particularly to improve the level of safety monitoring, navigation and communication systems of ocean-going large ships, and according to the guidance of the modern large ships with comprehensive configuration of advanced monitoring systems, the conventional common cable consisting of conductors, insulation, shielding layers, outer protective layers and the like is used for the ship monitoring system, so that the effects of preventing oxidation, reducing mutual crosstalk among loops, preventing external force impact, reducing smoke and being non-toxic cannot be completely achieved, and the requirements of accuracy, safety and high efficiency of ship operation cannot be met.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art, provide an it is insulating to marine communication of shield zinc-plating steel wire armor polyolefin overcoat and return circuit cable, have anti-oxidation, reduce cross talk each other between the return circuit, prevent external shock and low cigarette nontoxic effect.

The purpose of the utility model is realized like this: the marine communication and loop cable with the insulated pair-shielding galvanized steel wire armored polyolefin jacket comprises three shielded wire pairs, wherein each shielded wire pair comprises two insulated wire cores, a pair-twisted PE film isolation belt, a tinned copper wire braided sub-shielding layer and a sub-shielding PE film isolation belt; two insulated wire cores are twisted in opposite directions, each insulated wire core comprises an inner-layer tinned copper conductor and an outer-layer crosslinked polyethylene insulating layer, the twisted-pair group PE thin film isolation belt is wrapped on the twisted-pair two insulated wire cores, the tinned copper wire braided sub-shielding layer is arranged outside the twisted-pair group PE thin film isolation belt, and the sub-shielding PE thin film isolation belt is wrapped on the tinned copper wire braided sub-shielding layer; the three shielded wires form a cable core, a double-layer water-blocking cloth belt is wound outside the cable core, a double-layer flame-retardant halogen-free glass fiber belt is wound outside the double-layer water-blocking cloth belt, a galvanized steel wire woven armor layer is arranged outside the double-layer flame-retardant halogen-free glass fiber belt, and a low-smoke halogen-free polyolefin outer sheath is extruded outside the galvanized steel wire woven armor layer.

The utility model discloses a shielded wire pair and shielded wire pair adopt to divide shielding PE film median to keep apart, and pair twist group PE film median is around the package on two insulation core behind the pair twist, and is insulating effectual, can keep stronger interference killing feature when the point potential difference appears in signal circuit, ensures cable signal transmission quality. Meanwhile, the paint has good oxidation resistance, corrosion resistance, water resistance and external force impact resistance. The long-term allowable working temperature of the cable conductor is up to 90 ℃, the used minimum working temperature is-25 ℃, the maximum temperature is +70 ℃, and the installation and laying minimum temperature is-15 ℃.

The utility model discloses rational in infrastructure simple, the manufacturing is easy, and the rated voltage of various modernized boats and ships of mainly used is in 250V and following communication, monitored control system device circuit.

In order to ensure the roundness of the cable, a high-temperature flame-retardant glass fiber rope filling layer is filled between the shielded wire pair and the double-layer water-blocking cloth belt.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in fig. 1, the insulated pair-shielded galvanized steel wire armored polyolefin jacketed marine communication and loop cable comprises three shielded wire pairs 12, wherein each shielded wire pair 12 comprises two insulated wire cores 13, a pair-twisted group PE thin film isolation belt 3, a tinned copper wire braided sub-shielding layer 4 and a sub-shielding PE thin film isolation belt 5. Two insulation core 13 twist relatively, and every insulation core 13 includes the tinned copper conductor 1 and the outer crosslinked polyethylene insulating layer 2 of inlayer, and pair twist group PE film median 3 is around wrapping on two insulation core 13 after the pair twist, and the tinned copper wire is woven and is divided shielding layer 4 and set up outside pair twist group PE film median 3, divides shielding PE film median 5 to weave on dividing shielding layer 4 around the package at the tinned copper wire.

The three shielded wire pairs 12 form a cable core 11, a double-layer water-blocking cloth tape 7 is wound outside the cable core 11, and a high-temperature flame-retardant glass fiber rope filling layer 6 is filled between the shielded wire pairs 12 and the double-layer water-blocking cloth tape 7. The double-layer water-blocking cloth belt 7 is wrapped with a double-layer flame-retardant halogen-free glass fiber belt 8, a galvanized steel wire woven armor layer 9 is arranged outside the double-layer flame-retardant halogen-free glass fiber belt 8, and a low-smoke halogen-free polyolefin outer sheath 10 is extruded outside the galvanized steel wire woven armor layer 9.

Claims

1. The marine communication of insulating pair shielding galvanized steel wire armor polyolefin overcoat and return cable, characterized by: the shielding cable comprises three shielding wire pairs, wherein each shielding wire pair comprises two insulating wire cores, a pair-twisted group PE film isolation belt, a tinned copper wire braided sub-shielding layer and a sub-shielding PE film isolation belt; two insulated wire cores are twisted in opposite directions, each insulated wire core comprises an inner-layer tinned copper conductor and an outer-layer crosslinked polyethylene insulating layer, the twisted-pair group PE thin film isolation belt is wrapped on the twisted-pair two insulated wire cores, the tinned copper wire braided sub-shielding layer is arranged outside the twisted-pair group PE thin film isolation belt, and the sub-shielding PE thin film isolation belt is wrapped on the tinned copper wire braided sub-shielding layer; the three shielded wires form a cable core, a double-layer water-blocking cloth belt is wound outside the cable core, a double-layer flame-retardant halogen-free glass fiber belt is wound outside the double-layer water-blocking cloth belt, a galvanized steel wire woven armor layer is arranged outside the double-layer flame-retardant halogen-free glass fiber belt, and a low-smoke halogen-free polyolefin outer sheath is extruded outside the galvanized steel wire woven armor layer.

2. The insulation-pair shielding galvanized steel wire armored polyolefin jacketed marine communication and loop cable of claim 1, wherein: and a high-temperature flame-retardant glass fiber rope filling layer is filled between the shielded wire pairs and the double-layer water-blocking cloth belt.