Method for preparing photoelectric composite submarine cable

A submarine cable, optoelectronic composite technology, applied in the manufacture of cables/conductors, insulation of conductors/cables, circuits, etc., can solve the problems of cable mechanical performance decline, poor aluminum waterproof effect, unable to guarantee the service life of submarine cables, etc. Guarantees the effect of water blocking performance

Active Publication Date: 2012-10-31
SICHUAN MINGXING CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, because in this patented technical scheme, it has adopted aluminum-plastic composite tape, because the waterproof effect of aluminum is not good, so, the waterproof effect of the cable in this patented technology is not ideal again, because, the armor layer in this patented technology There is only a single layer, so it cannot withstand the complex external force environment of the seabed, so that the cable core and optical unit inside the submarine cable are easily affected by tension, and the mechanical properties of the cable are reduced.
Moreover, the various processes of the above-mentioned patented technical solution cannot be completed in series at one time, so when preparing a large-length three-core photoelectric composite submarine cable, it is inevitable to use a flexible joint, which cannot guarantee the service life of the normal operation of the submarine cable.

Method used

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  • Method for preparing photoelectric composite submarine cable
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Examples

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Effect test

Embodiment 1

[0045] A method for preparing a photoelectric composite submarine cable, characterized in that the following steps are adopted:

[0046] A), wire drawing treatment is carried out to the conductor;

[0047] B), utilize 91 coil frame winches to manufacture the conductor obtained in step 1 into three sections with a cross-sectional area of ​​630mm 2 round conductors;

[0048] C), the outer layers of the three circular conductors obtained in step B) are all wrapped with semi-conductive tape, and then the wires are respectively taken up to the 10m diameter transfer turntable through the steering guide wheel;

[0049] D) Pass the conductors on the three 10m-diameter transfer turntables through the vertical cross-linking production line VCV respectively to perform conductor shielding, insulation and insulation shielding co-extrusion processes, and perform water-blocking tape at the outlet of the vertical cross-linking production line VCV Spiral wrapping;

[0050] E), then the thre...

Embodiment 2

[0060] A method for preparing a photoelectric composite submarine cable, characterized in that the following steps are adopted:

[0061] A), wire drawing treatment is carried out to the conductor;

[0062] B), utilize 91 coil frame winches to manufacture the conductor obtained in step 1 into three sections with a cross-sectional area of ​​630mm 2 round conductors;

[0063] C), the outer layers of the three circular conductors obtained in step B) are all wrapped with semi-conductive tape, and then the wires are respectively taken up to the 10m diameter transfer turntable through the steering guide wheel;

[0064] D) Pass the conductors on the three 10m-diameter transfer turntables through the vertical cross-linking production line VCV respectively to perform conductor shielding, insulation and insulation shielding co-extrusion processes, and perform water-blocking tape at the outlet of the vertical cross-linking production line VCV Spiral wrapping;

[0065] E), then the thre...

Embodiment 3

[0075] A method for preparing a photoelectric composite submarine cable, characterized in that the following steps are adopted:

[0076] A), wire drawing treatment is carried out to the conductor;

[0077] B), utilize 91 coil frame winches to manufacture the conductor obtained in step 1 into three sections with a cross-sectional area of ​​630mm 2 round conductors;

[0078] C), the outer layers of the three circular conductors obtained in step B) are all wrapped with semi-conductive tape, and then the wires are respectively taken up to the 10m diameter transfer turntable through the steering guide wheel;

[0079] D) Pass the conductors on the three 10m-diameter transfer turntables through the vertical cross-linking production line VCV respectively to perform conductor shielding, insulation and insulation shielding co-extrusion processes, and perform water-blocking tape at the outlet of the vertical cross-linking production line VCV Spiral wrapping;

[0080] E), then the thre...

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Abstract

The invention discloses a method for preparing a photoelectric composite submarine cable and belongs to the field of preparation methods of cables. The method comprises the process steps of drawing wire, stranding, co-extruding, wrapping, degassing, adding a lead sheath, extruding a polyethylene (PE) sheath, vertical cabling and stranding, stranding optical units, armoring steel wire, sleeving outer sheath, rewinding a finished product and the like. The processes of conductors, insulating wire cores, degassing, pressing lead, extruding the sheath layer, three-core vertical cabling, wrapping, armoring steel wire and the like are connected in series, a joint-free whole large-length three-core photoelectric composite submarine cable is realized. The flexible joint of the large-length three-core photoelectric composite submarine cable is effectively avoided, so that the normal use and the service life of the submarine cable are guaranteed.

Description

technical field [0001] The invention discloses a preparation method of a photoelectric composite submarine cable, which belongs to the field of cable preparation methods. The method of the invention is especially suitable for the preparation of submarine cables. Background technique [0002] Submarine cable technology is recognized by countries all over the world as a difficult and complex large-scale technical project. The design, manufacture and construction of cables are far more difficult than other cable products. Since the submarine cable is used in a large depth, complex external force environment, and serious biological, chemical and physical damage, especially in the deep seabed, the huge water pressure requires the cable to have excellent water resistance and mechanical properties. [0003] As we all know, since submarine cables are used for power and communication transmission from island to mainland, island to island, platform to island, and platform to mainland,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B13/02H01B13/14H01B13/22H01B13/32
Inventor 王新刚李广元沈卢东盛业武陈光高江巍
Owner SICHUAN MINGXING CABLE
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