CN205542048U

CN205542048U - Shallow sea lake is laid and is used light -duty crosslinking polyethylene -insulated power cable

Info

Publication number: CN205542048U
Application number: CN201620288163.9U
Authority: CN
Inventors: 蒋军熙; 卫宇
Original assignee: Jiangsu Kai Da Cable Co Ltd
Current assignee: Jiangsu Kai Da Cable Co Ltd
Priority date: 2016-04-08
Filing date: 2016-04-08
Publication date: 2016-08-31
Anticipated expiration: 2026-04-08

Abstract

The utility model discloses a shallow sea lake is laid and is used light -duty crosslinking polyethylene -insulated power cable, including the cable core, wrap up thickness and be 1 outside the cable core are vertical water blocking layer of 3mm, vertical water blocking layer crowded package thickness outward 3 are 5mm's composite aluminium -plastic tape, composite aluminium -plastic tape crowded package thickness outward 5 the 7mm corrugated aluminium sheath, is the corrugated aluminium sheath external application 1 in thickness 3mm's anticorrosive pitch layer, crowded package 7 outside the skin of anticorrosive pitch layer 9mm's polyethylene insulation oversheath, is the polyethylene insulation oversheath still equipped with 3 outward 5mm's chain steel strip armoring layer, the cable core constitute by four insulation core and the metal reinforcing cords transposition that blocks water of setting in the middle of four insulation core of adopting quaternary phase equilibria symmetrical structure to the yarn that blocks water is filled by the department in the space of cable core. The utility model has the advantages of shield effectually, wear -resisting wipe, resistant extrusion, stretch -proofing, the block -water performance is good, can satisfy shallow sea lake complex environment operation requirement completely.

Description

A kind of lake, shallow sea is laid and is used light-duty power cable with cross-linked polyethylene insulation

Technical field

This utility model relates to field of cables, is specifically related to a kind of lake, shallow sea and lays and use light-duty power cable with cross-linked polyethylene insulation.

Background technology

At present, power cable is the cable for transmitting and distribute electric energy, the structure of conventional power cable mainly includes multiple power unit and the belting layer being sequentially coated on outside multiple power unit and inner/outer sheath layer, implant is had at gap between multiple power units, each power unit has conductor thread core, sequentially being coated with conductor shield, insulating barrier, insulation screen and copper strip shielding layer outside conductor thread core, some power cable, in order to meet underwater performance, is also provided with water blocking layer.China wriggles in coastline long, and offshore island is more, and inland lake is widely distributed, there is sinker for shallow sea, lake region, some may destroy the factor of power cable under water to execute net etc..

Development oil-gas exploration and development, shallow sea delivery operation and environmental monitoring key technology and equipment, the Grand Equipments such as focus development high accuracy exploration system, subsea production system and less important work, develop a collection of manned/non-manned underwater vehicle operating system, exploitation shallow sea lake environment long-range acquisition radar, the towing of the boat-carrying big degree of depth, deep-sea be floating/monitoring device such as subsurface buoy.The utilization of these equipment is required for power source support, the line of connection equipment and power source is exactly lake, shallow sea private cable, require that the construction of cable adapts to the Special use environmental requirement of lake, shallow sea, as electrical property and mechanical property etc. block water, abrasion-resistant, anti-extrusion, the requirement such as stretch-proof.

Utility model content

In order to overcome the deficiencies in the prior art, it is provided that a kind of shield effectiveness is good, abrasion-resistant, anti-extrusion, stretch-proof, the power cable with cross-linked polyethylene insulation that block-water performance is good, be fully able to meet lake, shallow sea complex environment and use requirement.

For achieving the above object, this utility model provides a kind of lake, shallow sea to lay and uses light-duty power cable with cross-linked polyethylene insulation, including cable core, at the longitudinal water-blocking layer that cable core outer wrapping thickness is 1-3mm, the aluminium-plastic tape that thickness is 3-5mm is extruded outside longitudinal water-blocking layer, extruding thickness outside aluminium-plastic tape is 5-7mm corrugated aluminium sheath, corrugated aluminium sheath is externally applied to the anti-corrosion asphalt layer that thickness is 1-3mm, outside anti-corrosion asphalt layer outer layer, extrude the polyethylene insulation oversheath of 7-9mm, outside polyethylene insulation oversheath, be additionally provided with the chain steel-tape armouring layer of 3-5mm；Described cable core is arranged on by four insulated wire cores using quaternary phase equilibria symmetrical structure and one and blocking water that reinforcement rope is stranded to be constituted in the middle of four insulated wire cores, and fills water blocking yarn in the gap of cable core.

Improve further, between four described insulated wire cores, be provided with reinforcement.

Improving further, described insulated wire cores is by tinned copper conductor, the non-woven fabrics and be extruded in the crosslinked polyetylene insulated layer blocking water outside non-woven fabrics and constitute of blocking water that is extruded in outside tinned copper conductor.

Compared with prior art, the beneficial effects of the utility model are:

1, this utility model is provided with carbon fiber reinforcement rope in the middle of four insulated wire cores, it is high that rope tensile strength strengthened by carbon fiber, it is about ten times of tensile strength of wire, therefore there is extremely strong external force resistance stretching action, and lightweight, flexibility good, can effectively prevent cable deadweight and the steel wire broken ring to cable.

2, this utility model uses reinforcement to reinforce four insulated wire cores so that four insulated wire cores are not susceptible to displacement in cable core so that cable entirety rounding property is good.

3, this utility model uses corrugated aluminium sheath, it is simple to stretch-proof again is squeezed in cable i.e. resistance to compression in lake, shallow sea, it is ensured that cable keeps stable performance under the complex environment of lake, shallow sea, safe and reliable.

4, this utility model coats bitumen layer outside corrugated aluminium sheath, can be effectively prevented radiation and the conduction of external electromagnetic ripple, and have good waterproof, antiseptic property.

5, the thickness of outer every layer of this cable is all incremented by 2mm so that the rounding property of cable is more preferable, thus improves the properties of cable, improves quality and the service life of cable.

6, this utility model uses the structure being additionally provided with chain steel-tape armouring layer outside external sheath layer, owing to chain steel-tape armouring layer has the highest mechanical strength, can be effectively prevented because of sinker, execute the damage that power cable is caused by the factors such as net.

7, this utility model uses longitudinal water-blocking layer and aluminium-plastic tape combined structure, the water penetration of elevated pressures can be effectively prevented to inside power cable when using under shallow sea and Lake Water, longitudinal water-blocking effect can not only be ensured well, additionally it is possible to ensure radial water-resisting effect well.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

Below in conjunction with the accompanying drawings and specific embodiment, it is further elucidated with this utility model, it should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model, after having read this utility model, those skilled in the art all fall within the application claims limited range to the amendment of the various equivalent form of values of the present utility model.

As shown in Figure 1, this utility model provides a kind of lake, shallow sea to lay and uses light-duty power cable with cross-linked polyethylene insulation, including cable core, described cable core is arranged on the carbon fiber in the middle of four insulated wire cores and strengthens that rope 11 is stranded to be constituted by four insulated wire cores using quaternary phase equilibria symmetrical structure and one, and fills water blocking yarn 4 in the gap of cable core；Described insulated wire cores is by tinned copper conductor 1, the non-woven fabrics 2 and be extruded in the crosslinked polyetylene insulated layer 3 blocking water outside non-woven fabrics and constitute of blocking water that is extruded in outside tinned copper conductor；At the longitudinal water-blocking layer 5 that cable core outer wrapping thickness is 1-3mm, the aluminium-plastic tape 6 that thickness is 3-5mm is extruded outside longitudinal water-blocking layer, extruding thickness outside aluminium-plastic tape is 5-7mm corrugated aluminium sheath 7, corrugated aluminium sheath is externally applied to the anti-corrosion asphalt layer 8 that thickness is 1-3mm, the polyethylene insulation oversheath 9 of 7-9mm is extruded outside anti-corrosion asphalt layer outer layer, the chain steel-tape armouring layer 10 of 3-5mm it is additionally provided with outside polyethylene insulation oversheath, owing to chain steel-tape armouring layer has the highest mechanical strength, can be effectively prevented because of sinker, execute the damage that power cable is caused by the factors such as net.

It is provided with reinforcement so that four insulated wire cores are not susceptible to displacement in cable core so that cable entirety rounding property is good between four described insulated wire cores.

The above is only preferred implementation of the present utility model; it should be pointed out that, for the person of ordinary skill of the art, on the premise of without departing from this utility model principle; can also make some modification and improvement, these also should be regarded as belonging to protection domain of the present utility model.

Claims

1. lake, a shallow sea is laid and is used light-duty power cable with cross-linked polyethylene insulation, it is characterized in that: include cable core, at the longitudinal water-blocking layer (5) that cable core outer wrapping thickness is 1-3mm, the aluminium-plastic tape (6) that thickness is 3-5mm is extruded outside longitudinal water-blocking layer, extruding thickness outside aluminium-plastic tape is 5-7mm corrugated aluminium sheath (7), corrugated aluminium sheath is externally applied to anti-corrosion asphalt layer (8) that thickness is 1-3mm, outside anti-corrosion asphalt layer outer layer, extrude the polyethylene insulation oversheath (9) of 7-9mm, outside polyethylene insulation oversheath, be additionally provided with the chain steel-tape armouring layer (10) of 3-5mm；Described cable core is arranged on the carbon fiber in the middle of four insulated wire cores and strengthens rope (11) are stranded constituting by four insulated wire cores using quaternary phase equilibria symmetrical structure and one, and fills water blocking yarn (4) in the gap of cable core.

Lake, shallow sea the most according to claim 1 is laid and is used light-duty power cable with cross-linked polyethylene insulation, it is characterised in that: it is provided with reinforcement (12) between four described insulated wire cores.

Lake, shallow sea the most according to claim 1 is laid and is used light-duty power cable with cross-linked polyethylene insulation, it is characterised in that: the non-woven fabrics that blocks water (2) that described insulated wire cores by tinned copper conductor (1), is extruded in outside tinned copper conductor and be extruded in the crosslinked polyetylene insulated layer (3) blocked water outside non-woven fabrics and constitute.