CN202502785U

CN202502785U - Composite-shielding-type solar-energy photovoltaic symmetrical cable

Info

Publication number: CN202502785U
Application number: CN2012200500437U
Authority: CN
Inventors: 席素玲
Original assignee: YANGZHOU HUACHENG CABLE CO Ltd
Current assignee: YANGZHOU HUACHENG CABLE CO Ltd
Priority date: 2012-02-16
Filing date: 2012-02-16
Publication date: 2012-10-24
Anticipated expiration: 2022-02-16

Abstract

A composite-shielding-type solar-energy photovoltaic symmetrical cable relates to the technical field of cable production. The cable comprises a cable core. A third winding belting layer, a general shielding layer of a plastic-aluminum composite belt, and an oversheath layer are successively arranged outside the cable core, wherein leading wires are arranged between the third winding belting layer and the general shielding layer. The cable core comprises four first insulating cores and two groups of shielding cores. Each first insulating core comprises a first conductor, wherein the first conductor is wrapped in a first insulating layer. Each shielding core comprises second insulating cores, wherein a first winding belting layer, a second winding belting layer and a sub shielding layer are arranged outside the second insulating cores successively, and a first inserting material is arranged between the second insulating core and the first winding belting layer. A second inserting material is arranged between the cable core and the third winding belting layer. The second insulating core comprises a second conductor, wherein the second conductor is wrapped in a second insulating layer. The symmetrical cable of the utility model is characterized by good effects in composite utilization and severe environment resistance, which are suitable for fields including security engineering, fire-fighting engineering, monitoring engineering, etc.

Description

Composite shielding type photovoltaic symmetrical cable

Technical field

The utility model relates to the cables manufacturing technical field, particularly a kind of composite shielding type photovoltaic symmetrical cable.

Background technology

In recent years, the maintaining sustained and rapid growth of China's economy is for wires and cables industry provides the huge market space.See that from development in future solar energy system usually can use, like high temperature and ultraviolet radiation under severe environmental conditions.In Europe, the scene temperature that will cause solar energy system when fine is up to 100 ° of C.At present; We have PVC, rubber, TPE and high-quality cross-linked polymer material by adoptable various materials; But regrettably, rated temperature is the rubber cable of 90 ° of C, is the also usually use out of doors of PVC cable of 70 ° of C even if also have rated temperature; Obviously, this will influence the useful life of system greatly.

With regard to photovoltaic application, the material of outdoor use should be decided according to ultraviolet ray, ozone, violent variations in temperature and chemical erosion situation in addition.Under this kind environmental stress, use low-grade material, will cause cable cover(ing) frangible, even can decompose cable insulation.All these situation all can directly increase the cable system loss, and the risk that cable short circuit takes place simultaneously also can increase, and in a midium or long term, the possibility of breaking out of fire or personnel's injury is also higher.

Summary of the invention

The utility model comprises cable core, sets gradually the 3rd wrapped belt, aluminium-plastic tape screen and external sheath layer in the said cable core outside; Between the said the 3rd wrapped belt and total screen, drainage thread is set; Said cable core comprises mutually stranded four first insulated wire cores and two set of shield cores, and said four first insulated wire cores comprise first conductor respectively, outside said every first conductor, wrap up first insulating barrier respectively; Said two set of shield cores comprise the second stranded insulated wire cores mutually respectively; Outside said every second insulated wire cores, set gradually the first wrapped belt, second wrapped belt and the sub-shield respectively, between the said every group of second stranded insulated wire cores and the first wrapped belt, first inserts is set respectively; Between said cable core and the 3rd wrapped belt, second inserts is set; Said every second insulated wire cores includes second conductor, at said every second conductor outerwrap second insulating barrier.

The utility model manufacturing process tube folk prescription just, cost is not high yet.Have high-temperature resistant, anti-ozone, uvioresistant, dielectric loss is little, antijamming capability is strong, mechanical strength is high, the compound characteristics such as effective, adverse environment resistant of utilizing.Be applicable to every field such as safe protection engineering, fire engineering, supervision control engineering, solar power station, photovoltaic system.

Description of drawings

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

Embodiment

As shown in Figure 1, the utility model comprises cable core, sets gradually the 3rd wrapped belt 1, total screen 2 and external sheath layer 3 in the cable core outside; Between the 3rd wrapped belt 1 and total screen 2, seven drainage threads 4 are set.

Cable core comprises that mutually stranded four first insulated

wire cores

5 and 6, four first insulated wire cores 5 of two set of shield cores comprise first conductor 7 respectively, wrap up first insulating barrier 8 respectively outside every first conductor 7; Two set of shield cores 6 comprise two second stranded insulated wire cores 9 mutually respectively; Outside every second insulated wire cores 9, set gradually first wrapped belt 10, second wrapped belt 11 and the sub-shield 12, between the every group of second stranded insulated wire cores 9 and the first wrapped belt 10, first inserts 13 is set respectively; Between cable core and the 3rd wrapped belt 1, second inserts 14 is set.

Every second insulated wire cores 9 includes second conductor 15, at every second conductor 15 outerwrap second insulating barrier 16.

Claims

1. composite shielding type photovoltaic symmetrical cable is characterized in that: comprise cable core, set gradually the 3rd wrapped belt, aluminium-plastic tape screen and external sheath layer in the said cable core outside; Between the said the 3rd wrapped belt and total screen, drainage thread is set; Said cable core comprises mutually stranded four first insulated wire cores and two set of shield cores, and said four first insulated wire cores comprise first conductor respectively, outside said every first conductor, wrap up first insulating barrier respectively; Said two set of shield cores comprise the second stranded insulated wire cores mutually respectively; Outside said every second insulated wire cores, set gradually the first wrapped belt, second wrapped belt and the sub-shield respectively, between the said every group of second stranded insulated wire cores and the first wrapped belt, first inserts is set respectively; Between said cable core and the 3rd wrapped belt, second inserts is set; Said every second insulated wire cores includes second conductor, at said every second conductor outerwrap second insulating barrier.