CN202487276U

CN202487276U - Ultrahigh-voltage composite aluminum-plastic tape longitudinally-wrapped copper wire-shielded power cable

Info

Publication number: CN202487276U
Application number: CN2012201000503U
Authority: CN
Inventors: 张卫忠; 陈永峰; 钱建芬; 蒋荷珍; 杨亚明
Original assignee: Wuxi Shuguang Cable Co Ltd
Current assignee: Wuxi Shuguang Cable Co Ltd
Priority date: 2012-03-16
Filing date: 2012-03-16
Publication date: 2012-10-10
Anticipated expiration: 2022-03-16

Abstract

The utility model discloses an ultrahigh-voltage composite aluminum-plastic tape longitudinally-wrapped copper wire-shielded power cable. The cable comprises a conductor at the center of the cable; and a conductor shielding layer, an insulating layer, an insulated shielding layer, a semi-conductive buffer strip, a copper wire shielding layer, a semi-conductive buffer water-blocking strip, a longitudinally-wrapped composite aluminum-plastic tape layer, an outer protection layer and a graphite coating are sequentially arranged outside the conductor. In the utility model, asphalt coating and a conventional corrugated aluminum sheath are not needed, and two processes are saved, thereby saving manpower and material resources and reducing environmental pollution in the production. The copper wire shielding layer not only can meet the requirements of single-phase fault short-circuit current, but also can bear certain tension in the vertical direction, thereby improving the comprehensive performance of the product. The process of the corrugated aluminum sheath is canceled, thus the production is more convenient and quicker, and the risk of scalding the insulated wire core is avoided.

Description

A kind of superhigh pressure aluminum plastic composite belt longitudinal coppered wire shield type power cable

Technical field

The utility model relates to a kind of power cable, specifically is a kind of superhigh pressure aluminum plastic composite belt longitudinal coppered wire shield type power cable.

Background technology

Now, China 110KV, 220KV extra-high-tension cable are used in electric power system widely.The use of extra-high-tension cable need adapt to the actual conditions of institute's environment for use, and is also different for its requirement to cable of different environment.The extra-high-tension cable of making at present is a pattern basically; Wrapped waterstop welds or extrudes radially waterproof of aluminium cover conduct as vertical waterproof, and such product can meet the demands; But it is not high for waterproof requirement; Even need not water resistant or waterproof environment, like indoor or water-less environment, manufacturing cost just seems higher like this.

In addition, extra-high-tension cable generally uses corrugated aluminum sheath, when adopting welding or extruding, is prone to cause insulated wire cores to damage because temperature control is improper, has potential product defects, reduces properties of product.

The utility model content

The utility model technical problem to be solved provides and is a kind ofly satisfying under the situation of instructions for use, makes the superhigh pressure aluminum plastic composite belt longitudinal coppered wire shield type power cable of low production cost.

The described a kind of superhigh pressure aluminum plastic composite belt longitudinal coppered wire shield type power cable of the utility model; It comprises the conductor of cable center, outside conductor, sets gradually plastic-aluminum combined belt, outer jacket and the equadag coating of conductor shield, insulating barrier, insulation screen, semi-conductive buffer band, copper wire screen, semi-conductive buffer water-blocking band, vertical bag.

The beneficial effect of the utility model:

1, the utility model need not bitumen coating and corrugated aluminum sheath that need not be conventional, has also saved two procedures simultaneously, practices thrift human and material resources, has also reduced and has produced the pollution to environment.

2, the copper wire screen can satisfy the requirement of single-phase fault short circuit current, also can bear the certain pulling force of vertical direction, has improved The comprehensive performance.

3, cancel the processing step of corrugated aluminum sheath, organized the production more convenient and quicker, and the risk of having avoided insulated wire cores to be scalded.

Description of drawings

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

Embodiment

As shown in Figure 1; The described a kind of superhigh pressure aluminum plastic composite belt longitudinal coppered wire shield type power cable of the utility model; The conductor 1 that it mainly comprises cable center sets gradually conductor shield 2, insulating barrier 3, insulation screen 4, semi-conductive buffer band 5, copper wire screen 6, semi-conductive buffer water-blocking band 7, vertical plastic-aluminum combined belt 8, outer jacket 9 and the equadag coating 10 that wraps outside conductor 1.

Its operation principle: because extra-high-tension cable is higher to performance requirement; The fault single-phase short circuit current is big; The operation principle that the utility model utilizes copper wire to shield to bear the single-phase fault short circuit current at the semi-conductive buffer band of the wrapped one deck 0.5mm of insulation shielding laminar surface thickness, plays the effect of protection insulated wire cores; After the semi-conductive buffer belt surface carries out the copper wire shielding; Wrapped again one deck semi-conductive buffer water-blocking band, vertical again bag one deck 0.3mm directly extrude oversheath after having a kind of plastic-aluminum combined band of viscose glue, not only simply but also the big cost of having practiced thrift.

The utility model is from practicing thrift cost and environmental pollution angle; Satisfying under the condition that extra-high-tension cable lays environment; Solved the difficult problem that screen is difficult to bear the single-phase fault short circuit current, and vertical run need bear the problem of big pulling force simple and efficiently.In addition, the use of pitch has also been removed in cable production, has not only saved the energy, more can not produce any environmental pollution.

The course of processing of the utility model: it is stranded at first to carry out conductor 1; Carry out crosslinked subsequently; Realize that conductor shield 2, insulating barrier 3 and insulation screen 4 are three-layer co-extruded, wrapped again semi-conductive buffer band 5 carries out the processing of copper wire screen 6 on the copper wire shield machine; Wrapped afterwards semi-conductive buffer water-blocking band 7 is indulged alclad plastic composite strip layer 8 at last successively, is extruded outer jacket 9 and coated graphite layer 10.

The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement, these improve the protection range that also should be regarded as the utility model.

Claims

1. superhigh pressure aluminum plastic composite belt longitudinal coppered wire shield type power cable; It is characterized in that comprising the conductor (1) of cable center, outside conductor (1), set gradually plastic-aluminum combined belt (8), outer jacket (9) and the equadag coating (10) of conductor shield (2), insulating barrier (3), insulation screen (4), semi-conductive buffer band (5), copper wire screen (6), semi-conductive buffer water-blocking band (7), vertical bag.