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400Hz structural performance balanced cable for ships and manufacture method thereof

A technology of structural performance and balanced cables, which is applied in the direction of cable/conductor manufacturing, power cables, cables, etc., can solve the problems of not meeting the cable flexibility requirements, unable to reduce the bending radius of the cable, and unable to achieve a small bending radius, etc., to achieve favorable Effects of heat dissipation, cable core structure balance, and mutual interference prevention

Inactive Publication Date: 2013-03-13
JIANGSU YUANYANG DONGZE CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The three kinds of cables are distributed in a triangle in the cable core, and the roundness of the cable core is poor due to the large difference in outer diameter.
The center of the three power cables of this cable is a non-empty structure, and the filling structure will cause cable bending stress, which cannot reduce the cable bending radius, and does not meet the cable flexibility requirements required by the ship's narrow space. At the same time, additional cables are placed around the power cable core. The contact between the gap and the power cable will also cause bending resistance to the power core during bending, and the small bending radius cannot be achieved

Method used

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  • 400Hz structural performance balanced cable for ships and manufacture method thereof

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Embodiment 1

[0022] Such as figure 1 As shown, the manufacturing method of the 400Hz structural performance balanced cable for ships of the present invention includes the following steps in turn: multiple tinned annealed copper wires with a diameter of 0.25 mm are twisted into strands with a pitch ratio of 10 times in the same direction, According to the calculation of the 98% ratio of the outer diameter of the bundle strand, the perfect circular compression mold is used, and each strand is subjected to compression molding treatment and then re-twisted into a power cable conductor. The direction is carried out, and the tinned annealed copper wire adopts the Class 6 type of the IEC 60228 standard; then, the power cable insulation layer is extruded around the outer circumference of the power cable conductor. The insulation layer of the power cable is an ethylene-propylene rubber insulation layer with a dielectric constant not greater than 2.5, and its heat-resistant temperature is 105°C. Th...

Embodiment 2

[0029] Such as figure 1 As shown, the manufacturing method of the 400Hz structural performance balanced cable for ships of the present invention includes the following steps in turn: multiple tinned annealed copper wires with a diameter of 0.28mm are twisted into strands with a pitch ratio of 11 times in the same direction, According to the calculation of the 99% ratio of the outer diameter of the bundle stranding, the perfect circular compression mold is used, and each strand is subjected to compression molding treatment and then re-twisted into a power cable conductor. The direction is carried out, and the tinned annealed copper wire adopts the Class 6 type of the IEC 60228 standard; then, the power cable insulation layer is extruded around the outer circumference of the power cable conductor. The insulation layer of the power cable is an ethylene-propylene rubber insulation layer with a dielectric constant not greater than 2.5, and its heat-resistant temperature is 105°C. ...

Embodiment 3

[0036] Such as figure 1 As shown, the manufacturing method of the 400Hz structural performance balanced cable for ships of the present invention comprises the following steps in turn: multiple tinned annealed copper wires with a diameter of 0.3 mm are twisted into strands with a 12 times pitch diameter ratio in the same direction, According to the calculation of the 99% ratio of the outer diameter of the bundle strand, the perfect circular compression mold is used, and each strand is subjected to compression molding treatment, and then re-twisted into a power cable conductor. The direction is carried out, and the tinned annealed copper wire adopts the Class 6 type of the IEC 60228 standard; then, the power cable insulation layer is extruded around the outer circumference of the power cable conductor. The insulation layer of the power cable is an ethylene-propylene rubber insulation layer with a dielectric constant not greater than 2.5, and its heat-resistant temperature is 105...

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Abstract

The invention relates to a 400Hz structural performance balanced cable for ships and a manufacture method thereof. The centers of three composite cable cores are connected into a regular triangle; the center of each composite cable core is a power cable conductor and is extruded and wrapped with a power cable insulating layer, and the periphery of each power cable insulating layer is provided with an insulating wire core set which is formed in a twisting way; ten grounding conductors are divided into two sets and are symmetrically arranged around each power cable insulating layer; eight control wire cores are divided into four sets, and are respectively arranged into two sets between two sets of grounding conductors, and a virtual displacement member is respectively arranged among each set of the control wire cores and between the control wire cores and the grounding conductors; the outer diameters of each grounding conductor, control wire core and virtual displacement member are the same as one another and are distributed on the same circle; the periphery of the insulating wire core set is extruded and wrapped with an internal protecting bush, and the periphery of the internal protecting bush is extruded and wrapped with an external protecting bush; and the external protecting bushes of the three composite cable cores are tangent with one another two by two and are glued into a whole. The cable simultaneously has the functions of a power cable and a control cable, and is balanced in structure and small in outer diameter and bending radius.

Description

technical field [0001] The invention relates to a composite cable, in particular to a 400Hz structural performance balanced cable for ships. The invention also relates to a manufacturing method of a 400Hz structural performance balanced cable for ships. Background technique [0002] The traditional ship equipment power system adopts 50Hz, which has been consistent with the popular supporting equipment, which is convenient for equipment selection. However, with the development of large ships, high power and light and flexible generator sets, the current 400Hz equipment system is gradually used in large ship equipment, requiring 400Hz special cables to match it. In the prior art, when a 50Hz cable is used in a 400Hz system, the resistance of the cable will increase greatly due to the increase in frequency, resulting in an increase in the line voltage drop during use, which restricts the realization of the expected purpose of the project; if the same current load is carried ou...

Claims

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Application Information

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IPC IPC(8): H01B9/00H01B13/00
Inventor 李永江陆云春
Owner JIANGSU YUANYANG DONGZE CABLE
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