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Filling type sheath-structure cable

A filling and sheathing technology, used in insulated cables, power cables, power cables including optical transmission components, etc., can solve the problems of general water blocking effect, short-circuit current transmission effect, large copper wire gap, etc., to achieve production efficiency The effect of not being affected, reducing production costs and increasing compressive strength

Inactive Publication Date: 2017-11-10
ZHONGTIAN TECH SUBMARINE CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are two ways to realize water resistance of conductors: hard water resistance and soft water resistance. The former generally uses materials such as water resistance ointment between the conductors. Specialized ointment melting equipment, large investment and difficult coating
The latter generally uses materials such as water-blocking tape and water-blocking sand between the conductors. The water-blocking tape and water-blocking sand expand with water to realize the water-blocking function, but the use of water-blocking tape is prohibited in some areas, and the water-blocking sand needs to be combined with copper wire Stranded into the conductor together, the equipment needs to be modified, and the investment is large
[0005] In the past, the conductor was wrapped or longitudinally wrapped with water-blocking tape to realize the water-blocking function, and the insulated wire core was wrapped with water-blocking tape to realize the water-blocking function, but the use of semi-conductive resistance water tape outside the core will cause certain damage to the transmission of short-circuit current. At the same time, the gap between the copper wires is large, and the water blocking effect is general

Method used

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  • Filling type sheath-structure cable
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  • Filling type sheath-structure cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 A cable with a filled sheath structure is shown, including a conductor 1, a conductor shielding layer 2, an insulating layer 3, an insulating shielding layer 4, a shielding layer 5, and a sheathing layer 6, and the conductor 1 is provided with a conductor shielding layer 2 , the conductor shielding layer 2 is provided with an insulating layer 3, the insulating layer 3 is provided with an insulating shielding layer 4, the insulating shielding layer 4 is provided with a shielding layer 5, and the shielding layer 5 is filled with a sheath Layer 6.

[0029] in:

[0030] Conductor 1 adopts one of aluminum conductors, aluminum alloy conductors, annealed copper conductors without metal plating, or other two types of conductors; conductor shielding layer 2 is made of extruded semi-conductive material or semi-conductive tape and extruded semi-conductive Conductive material; the insulating layer 3 is uniformly extruded on the conductor shielding layer by cross-...

Embodiment 2

[0033] Such as figure 2 A filled sheath structure cable with photoelectric composite function is shown, including a conductor 1, a conductor shielding layer 2, an insulating layer 3, an insulating shielding layer 4, a shielding layer 5, and a sheathing layer 6, and the conductor 1 is peripherally equipped with There is a conductor shielding layer 2, an insulating layer 3 is arranged outside the conductor shielding layer 2, an insulating shielding layer 4 is arranged outside the insulating layer 3, a shielding layer 5 is arranged outside the insulating shielding layer 4, and a shielding layer 5 is arranged outside the insulating shielding layer 5 The gap is filled with a sheath layer 6, and the shielding layer 5 is provided with an optical unit 7 on the same layer. The optical unit 7 adopts an optical fiber and a stainless steel tube on the outer layer of the optical fiber. The stainless steel tube can effectively protect the optical fiber.

[0034] in:

[0035] Conductor 1 a...

Embodiment 3

[0039] Such as image 3 A filled sheath structure cable with strong water blocking performance is shown, including conductor 1, conductor shielding layer 2, insulating layer 3, insulating shielding layer 4, shielding layer 5, sheath layer 6, semiconducting resistance water tape 8 and water blocking powder 9, the conductor 1 is provided with a conductor shielding layer 2, the conductor shielding layer 2 is provided with an insulating layer 3, the insulating layer 3 is provided with an insulating shielding layer 4, and the insulating shielding layer A shielding layer 5 is arranged on the outside of the shielding layer 5, and the gap of the shielding layer 5 is filled with a sheath layer 6.

[0040] in:

[0041] Conductor 1 is a water-blocking conductor. Conductor 1 can be one of aluminum conductors, aluminum alloy conductors, annealed copper conductors without metal plating, or other two types of conductors. The conductor center line and the conductor layer are all made of semi...

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PUM

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Abstract

The invention discloses a filling type sheath-structure cable. The filling type sheath-structure cable comprises a conductor, a conductor shielding layer, an insulation layer, an insulation shielding layer, a shielding layer and a sheath layer, wherein the conductor shielding layer is arranged outside the conductor, the insulation layer is arranged outside the conductor shielding layer, the insulation shielding layer is arranged outside the insulation layer, the shielding layer is arranged outside the insulation shielding layer, and a gap of the shielding layer is filled with the sheath layer. In the cable structure, the shielding layer is in direct contact with the insulation shielding layer, a wrapping tap is not used for wrapping the shielding layer, a sheath employs an extruded die, the gap of the shielding layer is filled with a sheath material, and the structure cable is more attractive and also has a certain water blocking effect; and meanwhile, by the cable, an optical unit and a water blocking structure can be expanded, photoelectric transmission and the longitudinal water blocking effect and the radial water blocking effect of a cable core are achieved, the application range is expanded, and the product competiveness is improved.

Description

technical field [0001] The invention relates to a power cable, in particular to a power cable with a filled sheath structure and expandable photoelectric transmission and water blocking functions. Background technique [0002] In the past, ordinary cables consisted of conductors, conductor shields, insulation, insulation shields, semi-conductive tapes, copper tapes or copper wire shields, and sheaths. Copper tapes or copper wires were wrapped with tapes. The gap between copper wires in this structure cable Large, without any filler in the middle, the structure is not beautiful, and the water blocking effect is poor. The filled sheath structure cross-linked cable has a beautiful structure and has a certain water-blocking effect. [0003] And because there is no optical fiber in the ordinary cable, it can only be used for a single power transmission purpose. The new single-core photoelectric composite cable has a beautiful structure, can transmit power and signal at the same...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00H01B9/02H01B7/17H01B7/18H01B7/282H01B7/288H01B7/32
CPCH01B9/005H01B7/17H01B7/18H01B7/2825H01B7/288H01B7/324H01B9/02
Inventor 蔡红祥郑大白薛建林张建民付长琦钱浩王伟冯咏生马健峰夏云海
Owner ZHONGTIAN TECH SUBMARINE CABLE CO LTD
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