CN206259210U - Waterproofing type water tree resistant power cable - Google Patents

Waterproofing type water tree resistant power cable Download PDF

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Publication number
CN206259210U
CN206259210U CN201621220650.8U CN201621220650U CN206259210U CN 206259210 U CN206259210 U CN 206259210U CN 201621220650 U CN201621220650 U CN 201621220650U CN 206259210 U CN206259210 U CN 206259210U
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China
Prior art keywords
water
tree
wrapped
shielding
power cable
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Application number
CN201621220650.8U
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Chinese (zh)
Inventor
曲国安
张涛
曲行峰
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QINGDAO HANHE CABLE CO Ltd
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QINGDAO HANHE CABLE CO Ltd
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Abstract

The utility model is related to a kind of power cable, more particularly to a kind of waterproofing type water tree resistant power cable that can improve block-water performance, water tree resistant property, service life.The outer wrapped semiconductor waterstop I of conductor in the waterproofing type water tree resistant power cable, the outer conductor shielding of parcel semiconductive successively of semiconductor waterstop I, water resistant tree XLPE insulation, semi-conductive insulation shield, wrapped semiconductor waterstop II, copper strip shielding successively outside semi-conductive insulation shield, core twisted synthesizing cable after wrapped copper strip shielding, gap is using the filling that blocks water, the binding strap that blocks water is wrapped to be tightened, and alclad plastic composite strip is indulged outside the binding strap that blocks water and HDPE oversheaths are wrapped up.Rationally, the selection of material is excellent, and production technology is advanced perfect for the utility model Cable Construction Design, effectively prevents the entrance of moisture, delays or suppress water tree to produce, improving cable service life.

Description

Waterproofing type water tree resistant power cable
Technical field
The utility model is related to a kind of power cable, more particularly to one kind to improve block-water performance, water tree resistant property, use The waterproofing type water tree resistant power cable in life-span.
Background technology
In China 35kV and following middle pressure buried cable almost all using routine XLPE insulation, cable does not take resistance yet Water-bound is designed.If the frequent short-term or long period of soaking of cable is in water, or is in the very big environment of moisture humidity, meeting of insulating The moisture in environment is gradually absorbed, substantial amounts of water tree can be triggered in cable insulation in the course of time in the presence of electric field.When exhausted When water tree reaches saturation state in edge, insulation electrical and mechanical performance will drastically decline, and conductive water tree is that electricity tree can be lost greatly The electric energy of amount, and finally cause cable insulation to puncture, so as to greatly reduce cable life, cause huge economic waste and safety Hidden danger.
Utility model content
The utility model is to overcome drawbacks described above, there is provided a kind of waterproofing type water tree resistant power cable, it can effectively prevent water Point entrance, delay or suppresses water tree produce, raising cable service life.
To achieve the above object, the utility model is adopted the following technical scheme that:
A kind of waterproofing type water tree resistant power cable, including conductor, semiconductor waterstop I, semiconductive conductor shielding, water resistant tree It is XLPE insulation, semi-conductive insulation shield, semiconductor waterstop II, copper strip shielding, the filling that blocks water, the binding strap that blocks water, plastic-aluminum combined Band and HDPE oversheaths, wherein, the outer wrapped semiconductor waterstop I of conductor, semiconductor waterstop I is outer to wrap up semiconductive conductor successively Shielding, water resistant tree XLPE are insulated, semi-conductive insulation shield, wrapped semiconductor waterstop II, copper successively outside semi-conductive insulation shield Band shielding, the core twisted synthesizing cable after wrapped copper strip shielding, using the filling that blocks water, the binding strap that blocks water is wrapped to be tightened, and is blocked water in gap Alclad plastic composite strip is indulged outside binding strap and HDPE oversheaths are wrapped up.
Conductor is formed using tile-type single line is stranded, and internal layer is using the vertical bag of insulation waterstop.
Semiconductor waterstop I is outer to be extruded semiconductive conductor shielding, water resistant tree XLPE insulation, partly leads using three-layer co-extruded mode Electric insulation shielding.
In order to be able to meet the generation that cable delays or suppress water tree, cable employs water resistant tree XLPE insulating materials, and prevents Sealing point and moisture enter cable, are only the fundamental way for preventing generation water tree in insulation, therefore, in order to be able to reach cable footpath To with longitudinal water-blocking effect, the utility model conductor employs that tile-type single line is stranded to be formed, and internal layer is indulged using insulation waterstop Bag, outer layer uses semi-conducting water-resistant tape;Semi-conducting water-resistant tape is used between insulation shielding and copper strip shielding;Between stranding Gap is filled using blocking water and stranding cable core is wrapped using the binding strap that blocks water;Sheath is using aluminum plastic composite belt longitudinal bag and wraps up outside HDPE Sheath is used as comprehensive waterproof composite jacket.
Compared with prior art, rationally, the selection of material is excellent, and production technology is advanced complete for the utility model Cable Construction Design It is kind, the entrance of moisture is effectively prevented, delay or suppresses water tree to produce, improving cable service life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Reference is shown in figure:1- conductors, 2- semiconductor waterstops I, 3- semiconductives conductor shielding, 4- water resistant trees Block water filling, 9- of XLPE insulation, 5- semi-conductive insulation shields, 6- semiconductor waterstops II, 7- copper strip shieldings, 8- blocks water colligation Band, 10- aluminium-plastic tapes, 11-HDPE oversheaths.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, waterproofing type water tree resistant power cable of the present utility model includes conductor 1, semiconductor waterstop I 2, half Electric conductor shielding 3, water resistant tree XLPE insulate 4, semi-conductive insulation shield 5, semiconductor waterstop II 6, copper strip shielding 7, block water The filling 8, binding strap 9 that blocks water, aluminium-plastic tape 10 and HDPE oversheaths 11, wherein, conductor 1 meets GB/T using 7 3.00mm The 2nd class is annealed in 3956, and tile-type copper single line is stranded to be formed, and internal layer uses one using one layer of 0.25mm vertical bag of insulation waterstop, outer layer Layer 0.20mm semiconductor waterstops I 2 are wrapped;Semiconductor waterstop I 2 is outer to extrude semiconductive conductor shielding using three-layer co-extruded mode 3rd, water resistant tree XLPE insulation 4, semi-conductive insulation shield 5, nominal thickness is followed successively by 0.6mm, 4.5mm, 0.8mm;Semi-conductive insulation Shielding 5 is outer successively around II 6, one layer of 0.10mm copper strip shielding 7 of 0.6mm semiconductor waterstops of double-baging, after wrapped copper strip shielding 7 Core twisted synthesizing cable, using the filling 8 that blocks water, two-layer 0.2mm is blocked water, and binding strap 9 is wrapped to be tightened in gap;The outer vertical bag of the binding strap 9 that blocks water One layer of 0.25mm aluminium-plastic tape 10 simultaneously wraps up one layer of formation cable of HDPE oversheaths 11 of nominal thickness 2.5mm.
The technical scope of this utility model is not limited to the content stated on specification, described in this specification Content is only enumerating to the way of realization of inventional idea, and those skilled in the art completely can be without departing from the utility model On the premise of principle, it is improved, replace and changes.Therefore this patent protection domain also and in those skilled in the art according to Patent principle it is conceivable that equivalent technologies mean.

Claims (3)

1. a kind of waterproofing type water tree resistant power cable, it is characterised in that including conductor (1), semiconductor waterstop I (2), semiconductive Conductor shielding (3), water resistant tree XLPE insulation (4), semi-conductive insulation shield (5), semiconductor waterstop II (6), copper strip shielding (7), block water filling (8), the binding strap that blocks water (9), aluminium-plastic tape (10) and HDPE oversheaths (11), wherein, conductor (1) outward around Bag semiconductor waterstop I (2), parcel semiconductive conductor shielding (3), the water resistant tree XLPE insulation successively outward of semiconductor waterstop I (2) (4), semi-conductive insulation shield (5), semi-conductive insulation shield (5) wrapped semiconductor waterstop II (6), copper strip shielding successively outward (7), the core twisted synthesizing cable after wrapped copper strip shielding (7), using the filling (8) that blocks water, the binding strap that blocks water (9) is around wrapping in gap Tightly, the binding strap (9) that blocks water indulges outward alclad plastic composite strip (10) and wraps up HDPE oversheaths (11).
2. waterproofing type water tree resistant power cable according to claim 1, it is characterised in that conductor (1) uses tile-type single line Stranded to form, internal layer is using the vertical bag of insulation waterstop.
3. waterproofing type water tree resistant power cable according to claim 1 and 2, it is characterised in that semiconductor waterstop I (2) It is outer that semiconductive conductor shielding (3), water resistant tree XLPE insulation (4), semi-conductive insulation shield (5) are extruded using three-layer co-extruded mode.
CN201621220650.8U 2016-11-11 2016-11-11 Waterproofing type water tree resistant power cable Active CN206259210U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621220650.8U CN206259210U (en) 2016-11-11 2016-11-11 Waterproofing type water tree resistant power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621220650.8U CN206259210U (en) 2016-11-11 2016-11-11 Waterproofing type water tree resistant power cable

Publications (1)

Publication Number Publication Date
CN206259210U true CN206259210U (en) 2017-06-16

Family

ID=59025066

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621220650.8U Active CN206259210U (en) 2016-11-11 2016-11-11 Waterproofing type water tree resistant power cable

Country Status (1)

Country Link
CN (1) CN206259210U (en)

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