Digital closed circuit TV (television) cable for marine engineering and manufacturing method thereof

A marine engineering and closed-circuit television technology, which is applied in the direction of cable/conductor manufacturing, power cables, insulated cables, etc., can solve the problems of low strength of twisted wires, poor shielding effect, and easy to be messy, so as to avoid signal interference and carry Convenience, the effect of reducing signal noise

Inactive Publication Date: 2011-06-22
JIANGSU YUANYANG DONGZE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common paired wires in the market have low strength and poor shielding effect. When using closed-circuit television, a separate power cable is required, which is not suitable for small environments such as ships, and it is easy to cause mess when multiple lines are crossed together.

Method used

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  • Digital closed circuit TV (television) cable for marine engineering and manufacturing method thereof
  • Digital closed circuit TV (television) cable for marine engineering and manufacturing method thereof
  • Digital closed circuit TV (television) cable for marine engineering and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Twisting forty-nine tinned copper wires with a diameter of 0.25mm into a power cable conductor 1a, the stranded pitch ratio is 9 times; The power cable 1 is formed by extruding the insulating layer 1b of the power cable with halogen material, and the extruded thickness is 0.6mm;

[0018] (2) Twisting seven tinned copper wires with a diameter of 0.2mm into a twisted pair conductor 2a, the twisted pitch ratio is 8 times; the outer circumference of the twisted pair conductor 2a adopts a low-density flame-retardant non-woven fabric with high insulation resistance The insulating layer 2b of the twisted wire extruded with halogen material, the extruded thickness is 0.3mm, and the outer diameter of the insulation is 1.1mm; two insulated core wires are twisted into a twisted pair, and the twisted pitch ratio is 9 times;

[0019] Twisting seven tinned copper wires with a diameter of 0.2 mm into a drain wire 2c, the twisted pitch ratio is 8 times;

[0020] Wrap aluminum foil...

Embodiment 2

[0025] (1) Twisting forty-nine tinned copper wires with a diameter of 0.28mm into a power cable conductor 1a, the stranded pitch ratio is 12 times; The power cable insulation layer 1b is extruded with halogen material to form the power cable 1, and the extruded thickness is 0.8mm;

[0026] (2) Twisting seven tinned copper wires with a diameter of 0.24mm into a twisted pair conductor 2a, the twisted pitch ratio is 12 times; the outer circumference of the twisted pair conductor 2a is made of a low-density flame-retardant non-woven fabric with high insulation resistance. The insulating layer 2b of the twisted wire extruded with halogen material, the extruded thickness is 0.35mm, and the outer diameter of the insulation is 1.3mm; two insulated core wires are twisted into a twisted pair, and the twisted pitch ratio is 12 times;

[0027] Twisting seven tinned copper wires with a diameter of 0.24 mm into a drain wire 2c, the twisted pitch ratio is 12 times;

[0028] Wrap aluminum fo...

Embodiment 3

[0033] (1) Twisting forty-nine tinned wires with a diameter of 0.26mm into a power cable conductor 1a, the stranded pitch ratio is 10 times; The power cable insulation layer 1b is extruded with halogen material to form the power cable 1, and the extruded thickness is 0.7mm;

[0034] (2) Twisting seven tinned copper wires with a diameter of 0.22mm into a twisted pair conductor 2a, the twisted pitch ratio is 10 times; a low-density flame-retardant non-flammable wire with high insulation resistance is used on the outer circumference of the twisted pair conductor 2a The insulating layer 2b of the twisted wire extruded with halogen material, the extruded thickness is 0.32mm, and the outer diameter of the insulation is 1.2mm; two insulated core wires are twisted into a twisted pair, and the twisted pitch ratio is 11 times;

[0035] Twisting seven tinned copper wires with a diameter of 0.22 mm into a drain wire 2c, the twisted pitch ratio is 10 times;

[0036] Wrap aluminum foil pol...

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Abstract

The invention discloses a digital closed circuit TV (television) cable for marine engineering and a manufacturing method thereof, belonging to the field of cables. The cable is characterized in that a cable core is formed by stranding three power cables, a network cable and a plurality of filling cores; the three power cables are closely linked with each other and are arranged on the periphery of the network cable; the filling cores ensure the cable core to be round; a halogen-free polyolefin outer sheath is extruded on the periphery of the cable core; each power cable is formed by a power cable conductor and a power cable insulating layer covering the power cable conductor; the network cable comprises a network cable core formed by stranding four twisted core wires; the periphery of the network cable core is covered by a network cable aluminium foil layer and a network cable braid; the center of each twisted core wire comprises a twisted wire pair and a drainage wire; each twisted wire pair is formed through mutual stranding of two insulated core wires; the twisted wire pairs and the drainage wires are lapped by aluminium foil and polyester composite strips; the aluminium layers of the composite strips faces inwards; and the drainage wires and the aluminium layers of the aluminium foil and polyester composite strips are electrically contacted with each other. The cable can provide power and data signals.

Description

technical field [0001] The invention relates to a cable, in particular to a digital closed-circuit television cable for ships and ocean engineering. The invention also relates to a manufacturing method of a digital closed-circuit television cable for ships and ocean engineering. Background technique [0002] Twisted pair wire is a general wiring made of two mutually insulated wires twisted together according to certain specifications. It is often used as a transmission medium for information and communication networks, and is also widely used in digital closed-circuit television. However, the common twisted wires in the market have low strength and poor shielding effect. When using closed-circuit television, a separate power cable is required. Contents of the invention [0003] The primary purpose of the present invention is to overcome the problems in the prior art and provide a digital closed-circuit television cable for ships and marine engineering, which can meet the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/00H01B7/295H01B9/00H01B11/02H01B13/00H01B13/24
Inventor 陆云春李永江
Owner JIANGSU YUANYANG DONGZE CABLE
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