CN205542147U

CN205542147U - Novel power cable structure

Info

Publication number: CN205542147U
Application number: CN201620330694.XU
Authority: CN
Inventors: 朱海永
Original assignee: Suzhou Yinze Lyuxian Electronic Technology Co Ltd
Current assignee: Suzhou Yinze Lyuxian Electronic Technology Co Ltd
Priority date: 2016-04-20
Filing date: 2016-04-20
Publication date: 2016-08-31
Anticipated expiration: 2026-04-20

Abstract

The utility model provides an improve that novel power cable structure belongs to basic electronic components technical field, especially relates to a power cable. The utility model provides a low and the good novel power cable structure of the feature of environmental protection of cost. A novel power cable structure, includes that center conductor layer, semiconduction are around band, crowded half conducting conductor shielding layer of package, D. C. Isolation layer, crowded package semiconduction insulation screen, first semiconduction block water buffering area, stainless protection layer, second semiconduction block water buffering area, wrinkle copper sheathing, HDPE inner sheath, armor and oversheath, its characterized in that: the semiconduction is established around band, crowded half conducting conductor shielding layer of package, D. C. Isolation layer, crowded package semiconduction insulation screen, first semiconduction block water buffering area, stainless protection layer, second semiconduction block water buffering area, wrinkle copper sheathing, HDPE inner sheath, armor, oversheath in proper order in center conductor layer outside, wherein the armor comprises inlayer extrusion molding steel wire layer and outer extrusion molding steel wire layer.

Description

A kind of novel power cable structure

Technical field

This utility model belongs to technical field of basic electronic devices, especially relates to the improvement of a kind of power cable.

Background technology

In two-terminal direct current transmission system or multi-terminal direct current transmission system, the electric energy transmission between current conversion station, overhead transmission line, cable run and built on stilts these 3 kinds of circuit types of a cable hybrid line can be used.Domestic phased inverter D.C. high voltage transmission based on IGCT is used for Large Copacity, distance, point-to-point transmission of electricity, two ends current conversion station all away from down town, electric pressure all 500 kV and more than, two ends all use overhead transmission line to connect, and do not use direct current cables.D.C. high voltage transmission based on voltage source converter (VSC HVDC), domestic also referred to as flexible direct current, this technology of transmission of electricity has can power to passive network, not have between commutation failure, current conversion station without communication and be readily configured the advantages such as MTDC transmission system.Flexible DC power transmission is as a new generation's HVDC Transmission Technology, and it is structurally similar with D.C. high voltage transmission, is still and is made up of current conversion station and DC power transmission line (usually direct current cables).

Lapped insulation cable is mainly had from direct current cables manufacturing process.Wrapped paper insulated cable structure is highly suitable for direct current transportation, and its Electric Field Distribution presses the proportional distribution of resistivity, and just paper partial ohmic is big and that bear voltage is high, and oil clearance partial ohmic is little and that bear voltage is low, makes the best use of everything, and space charge accumulation is inconspicuous.But cable paper need to use first-class timber manufacture, consuming the forest reserves, insulating oil easily pollutes environment, and therefore, this cable is not conducive to environmental protection.

Summary of the invention

This utility model is aiming at the problems referred to above, it is provided that a kind of novel power cable structure that a kind of cost is low and the feature of environmental protection is good.

For realizing above-mentioned purpose of the present utility model; this utility model adopts the following technical scheme that; a kind of novel power cable structure, including central conductor layer, semiconductive twining package tape, extrude semiconductive conductor shield, D.C. isolation layer, extrude semi-conductive insulation shield layer, the first semiconductive blocks water buffer strip, stainless protection layer, the second semiconductive block water buffer strip, wrinkle copper sheathing, polyethylene inner sheath, armor and oversheath；It is characterized in that: set successively outside central conductor layer semiconductive twining package tape, extrude semiconductive conductor shield, D.C. isolation layer, extrude semi-conductive insulation shield layer, the first semiconductive blocks water buffer strip, stainless protection layer, the second semiconductive block water buffer strip, wrinkle copper sheathing, polyethylene inner sheath, armor, oversheath；Wherein armor is made up of internal layer extrusion molding steel wire floor and outer layer extrusion molding steel wire floor.

As a kind of preferred version, described D.C. isolation layer is the crosslinked polyetylene insulated layer of direct current.

As another kind of preferred version, described oversheath is PVC oversheath.

As another preferred version, described central conductor layer is aluminium alloy conductor layer.

The beneficial effects of the utility model.

This utility model uses aluminium alloy conductor to substitute copper conductors commonly used in the prior art as central conductor layer, reduces cost.And involved each Rotating fields is the material that can again recycle and makes, pollution-free, the feature of environmental protection is strong.Being provided with double-deck semiconductive to block water buffer strip, block-water performance is good, can be used for submarine laying.

Accompanying drawing explanation

Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, is not intended that restriction of the present utility model together with embodiment of the present utility model.

Fig. 1 is this utility model structural representation.

In figure, 1, for oversheath, 2 be outer layer extrusion molding steel wire floor, 3 be internal layer extrusion molding steel wire floor, 4 be polyethylene inner sheath, 5 be wrinkle copper sheathing, 6 be the second semiconductive block water buffer strip, 7 be stainless protection layer, 8 be the first semiconductive block water buffer strip, 9 for extrude semi-conductive insulation shield layer, 10 be D.C. isolation layer, 11 for extrude semiconductive conductor shield, 12 be semiconductive twining package tape, conductor layer centered by 13.

Detailed description of the invention

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains this utility model, be not used to limit this utility model.

As shown in Figure 1; a kind of novel power cable structure, including central conductor layer 13, semiconductive twining package tape 12, extrudes semiconductive conductor shield 11, D.C. isolation layer 10, extrudes block water buffer strip 8, stainless protection layer the 7, second semiconductive of semi-conductive insulation shield layer the 9, first semiconductive and block water buffer strip 6, wrinkle copper sheathing 5, polyethylene inner sheath 4, armor and oversheath 1；It is characterized in that: central conductor layer 13 is outside sets semiconductive twining package tape 12 successively, extrude semiconductive conductor shield 11, D.C. isolation layer 10, extrude block water buffer strip 8, stainless protection layer the 7, second semiconductive of semi-conductive insulation shield layer the 9, first semiconductive and block water buffer strip 6, wrinkle copper sheathing 5, polyethylene inner sheath 4, armor, oversheath 1；Wherein armor is made up of internal layer extrusion molding steel wire floor 3 and outer layer extrusion molding steel wire floor 2.

Described D.C. isolation layer 10 is the crosslinked polyetylene insulated layer of direct current.

Described oversheath 1 is PVC oversheath.

Described central conductor layer 13 is aluminium alloy conductor layer.

The foregoing is only preferred embodiment mode of the present utility model; the scope that can not limit this utility model protection with this, the change of any unsubstantiality that those skilled in the art is done on the basis of this utility model and replacement belong to this utility model scope required for protection.

Claims

1. a novel power cable structure, including central conductor layer (13), semiconductive twining package tape (12), extrude semiconductive conductor shield (11), D.C. isolation layer (10), extrude semi-conductive insulation shield layer (9), the first semiconductive blocks water buffer strip (8), stainless protection layer (7), the second semiconductive block water buffer strip (6), wrinkle copper sheathing (5), polyethylene inner sheath (4), armor and oversheath (1)；It is characterized in that: central conductor layer (13) is outside set successively semiconductive twining package tape (12), extrude semiconductive conductor shield (11), D.C. isolation layer (10), extrude semi-conductive insulation shield layer (9), the first semiconductive blocks water buffer strip (8), stainless protection layer (7), the second semiconductive block water buffer strip (6), wrinkle copper sheathing (5), polyethylene inner sheath (4), armor, oversheath (1)；Wherein armor is made up of internal layer extrusion molding steel wire floor (3) and outer layer extrusion molding steel wire floor (2).

A kind of novel power cable structure the most according to claim 1, it is characterised in that described D.C. isolation layer (10) is the crosslinked polyetylene insulated layer of direct current.

A kind of novel power cable structure the most according to claim 1, it is characterised in that described oversheath (1) is PVC oversheath.

A kind of novel power cable structure the most according to claim 1, it is characterised in that described central conductor layer (13) is aluminium alloy conductor layer.