CN202871386U - Fully-water-blocking, insulated, aerial, tensile and light cable - Google Patents
Fully-water-blocking, insulated, aerial, tensile and light cable Download PDFInfo
- Publication number
- CN202871386U CN202871386U CN 201220532684 CN201220532684U CN202871386U CN 202871386 U CN202871386 U CN 202871386U CN 201220532684 CN201220532684 CN 201220532684 CN 201220532684 U CN201220532684 U CN 201220532684U CN 202871386 U CN202871386 U CN 202871386U
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- water
- carbon fiber
- cable
- conductor
- water blocking
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Abstract
The utility model provides a fully-water-blocking, insulated, aerial, tensile and light cable which comprises a carbon fiber core, a conductive wire core, water blocking yarns, water blocking powder, semi-conductive water blocking strips, a semiconductor electrical shielding layer, and a water-blocking insulating layer, wherein the carbon fiber core is arranged in an internal center, the conductive wire core is twisted on the carbon fiber, the water blocking yarns and the water blocking powder are filled in twisted gaps between the conductive wire core and the carbon fiber core. The cable is relatively light in weight, and can reduce numbers of rods and towers while laid and reduce laying cost; and a tensile strength is several times of that of steel wire core cables. The conductor is filled with the water blocking yarns and a proper amount of the water blocking powder while twisted, and thus water can be completely prevented to further penetrate into the cable. After the conductor finishes twisting, a layer of double-sided waterproof strip is wrapped around the conductor, thereby relatively greatly improving water blocking performance of the cable.
Description
Technical field
The utility model relates to cable, is specifically related to a kind of lightweight cable of the good insulation preformance that blocks water.
Background technology
The existing aerial cable that blocks water can only be accomplished radial water-resisting and can not accomplish to block water fully that major effect is conductor and the insulation property of cable after moisture is immersed in the cable usually.With regard to conductor, cable is to be in a thermal steady state when normal operation, conductor temperature is generally all more than 60 ℃, will cause the conductor oxidation if there is moisture to immerse, so that thereby the contact resistance between single line has increased conductor resistance in the conductor, cause the energy loss of transmission line self to increase; With regard to insulation, although being the utmost point, polyethylene is insoluble in the nonpolar hydrophobic substance of water, but polyethylene is a kind of Piezoelectricity that is comprised of crystalline phase and amorphous phase, although poly crystalline phase close structure, but the molecules align in its amorphous phase is loose, the gap that intermolecular existence is larger.And hydrone is polarity, because the acting in conjunction of extension and electric field force under the alternating electric field, so that hydrone is easy to be penetrated in the grain boundary defects of the space of polyethylene amorphous phase and crystalline phase.Also there are the problems referred to above in the crosslinked polyethylene molecular structure, have more crosslinked accessory substance to serve as impurity in the crosslinked polyethylene simultaneously, thereby crosslinked polyethylene also have larger water absorption rate under alternating electric field.Can produce the water tree after crosslinked polyethylene and the polyethylene insulation suction, so that the punch through damage phenomenon easily occurs operating cable, have a strong impact on the useful life of cable; And common insulated aerial cable or be not to be with the load-bearing core, or be the load-bearing of band steel core, stricter to the required distance of the shaft tower that sets up cable, thus improved the laying cost of cable line.
The utility model content
The purpose of this utility model is: overcome the deficiencies in the prior art, provide that a kind of own wt is light, bearing tension is large, block-water performance is good, lay the low insulated aerial tension lightweight cable that entirely blocks water of cost, to satisfy the needs of nation-building sturdy power grid.
The technical solution of the utility model is: the insulated aerial tension lightweight cable that entirely blocks water of the present utility model, and its design feature is: comprise carbon fiber core, conductor wire core, water blocking yarn, water-proofing powder, semiconductive waterstop and the insulating barrier that blocks water;
Above-mentioned carbon fiber core is arranged on the inside center position; Conductor wire core is stranded on the carbon fiber core; Water blocking yarn and water-proofing powder are filled in the stranded slit of conductor wire core and carbon fiber core; The semiconductive waterstop is coated on the conductor wire core that is filled with water blocking yarn and water-proofing powder and the intertwist body periphery of carbon fiber core; The insulating barrier that blocks water is coated on the periphery of semiconductor waterstop.
Further scheme is: also comprise the semi-conductor electricity screen; The semi-conductor electricity screen is arranged on above-mentioned semiconductive waterstop and blocks water between the insulating barrier.
The utlity model has positive effect: (1) insulated aerial tension lightweight cable that entirely blocks water of the present utility model, its conductor mainly is comprised of the carbon fiber composite conductor, the center of conductor is as required by single or how form with carbon fiber wire, the outer stranded conductor wire core at center, the light and tensile strength of carbon fiber weight is the several times of steel wire, thereby reduced the weight of cable self, thereby when laying, can strengthen the distance between the shaft tower, can reduce shaft tower quantity under the identical distance condition, thereby reduce the laying cost of cable.(2) the insulated aerial tension lightweight cable that entirely blocks water of the present utility model, its conductor when stranded by in the conductor slit, filling water blocking yarn and adding an amount of water-proofing powder, when running into moisture, water blocking yarn and water-proofing powder will expand, can stop moisture further to permeate to cable fully, simultaneously by conductor is stranded finish after outside conductor the two-sided waterstop of wrapped one deck, further improved the block-water performance of cable.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is another kind of structural representation of the present utility model.
Reference numeral in the above-mentioned accompanying drawing is as follows:
Carbon fiber core 1, conductor wire core 2, water blocking yarn 3, water-proofing powder 4, semiconductive waterstop 5, semi-conductor electricity screen 6, insulating barrier 7 blocks water.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described:
(embodiment 1)
See Fig. 1, the insulated aerial tension lightweight cable that entirely blocks water of present embodiment is comprised of carbon fiber core 1, conductor wire core 2, water blocking yarn 3, water-proofing powder 4, semiconductive waterstop 5 and the insulating barrier 7 that blocks water.
Carbon fiber core 1 is arranged on the inside center position of cable, and it is by single or how form with carbon fiber wire.Compare to wire-core commonly used, carbon fiber weight is lighter, thereby has reduced the overall weight of cable, makes the distance that can strengthen when laying between shaft tower, reduces shaft tower quantity, lays cost thereby reduce.Simultaneously, the tensile strength of carbon fiber core but is the several times of steel wire, has improved greatly the resistance to tension of cable.
Water-proofing powder 4 is a kind of super absorbent resin (Super Absorbent Polymer is called for short SAP), and common name claims again high hydroscopic resin, water-absorbing resin.
The insulating barrier 7 that blocks water is polyolefin jacket, and it is coated on the periphery of semiconductor waterstop 5.The dual-use function that it has blocking water and insulate.
The cable of present embodiment is applicable to the voltage of safe transport 1KV.
To sum up, the insulated aerial tension lightweight cable that entirely blocks water of present embodiment, its conductor mainly is comprised of the carbon fiber composite conductor, the center of conductor is as required by single or how form with carbon fiber wire, the outer stranded conductor wire core at center, and the light and tensile strength of carbon fiber weight is the several times of steel wire, thereby reduced the weight of cable self, thereby when laying, can strengthen the distance between the shaft tower, can reduce shaft tower quantity under the identical distance condition, thereby reduce the laying cost of cable.The insulated aerial tension lightweight cable that entirely blocks water of present embodiment, its conductor when stranded by in the conductor slit, filling water blocking yarn and adding an amount of water-proofing powder, when running into moisture, water blocking yarn and water-proofing powder will expand, can stop moisture further to permeate to cable fully, simultaneously by conductor is stranded finish after outside conductor the two-sided waterstop of wrapped one deck, further improved the block-water performance of cable.
(embodiment 2)
See Fig. 2, the insulated aerial tension lightweight cable that entirely blocks water of this enforcement, its structure is substantially the same manner as Example 1, difference is: at the semiconductive waterstop 5 of embodiment 1 with block water and also be provided with semi-conductor electricity screen 6 between the insulating barrier 7, add semi-conductor electricity screen 6, but make the voltage of the cable safe transport 10KV of present embodiment.
Above embodiment is the explanation to embodiment of the present utility model; but not to restriction of the present utility model; person skilled in the relevant technique is in the situation that does not break away from spirit and scope of the present utility model; can also make various conversion and obtain the corresponding technical scheme that is equal to variation, so all technical schemes that are equal to all should be included into scope of patent protection of the present utility model.
Claims (2)
1. the insulated aerial tension lightweight cable that entirely blocks water is characterized in that: comprise carbon fiber core (1), conductor wire core (2), water blocking yarn (3), water-proofing powder (4), semiconductive waterstop (5) and the insulating barrier that blocks water (7);
Described carbon fiber core (1) is arranged on the inside center position; Conductor wire core (2) is stranded on the carbon fiber core (1); Water blocking yarn (3) and water-proofing powder (4) are filled in the stranded slit of conductor wire core (2) and carbon fiber core (1); Semiconductive waterstop (5) is coated on the intertwist body periphery of the conductor wire core (2) that is filled with water blocking yarn (3) and water-proofing powder (4) and carbon fiber core (1); The insulating barrier (7) that blocks water is coated on the periphery of semiconductor waterstop (5).
2. the insulated aerial tension lightweight cable that entirely blocks water according to claim 1 is characterized in that: also comprise semi-conductor electricity screen (6); Semi-conductor electricity screen (6) is arranged between described semiconductive waterstop (5) and the insulating barrier that blocks water (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532684 CN202871386U (en) | 2012-10-18 | 2012-10-18 | Fully-water-blocking, insulated, aerial, tensile and light cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220532684 CN202871386U (en) | 2012-10-18 | 2012-10-18 | Fully-water-blocking, insulated, aerial, tensile and light cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871386U true CN202871386U (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220532684 Expired - Fee Related CN202871386U (en) | 2012-10-18 | 2012-10-18 | Fully-water-blocking, insulated, aerial, tensile and light cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202871386U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903772A (en) * | 2014-03-04 | 2014-07-02 | 安徽恒晶电缆集团有限公司 | Flame-retardant cable |
| CN105405526A (en) * | 2015-12-07 | 2016-03-16 | 无锡裕德电缆科技有限公司 | Direct current traction tension-fracture-preventing power cable for rail transit of 1,500V or less |
| CN105895209A (en) * | 2016-06-06 | 2016-08-24 | 无锡市恒汇电缆有限公司 | Elliptic reinforced waterproof and moistureproof cable with micropore |
| US9658417B2 (en) | 2013-12-02 | 2017-05-23 | Tyco Electronics Subsea Communications Llc | Conductive water blocking material including metallic particles and an optical cable and method of constructing an optical cable including the same |
-
2012
- 2012-10-18 CN CN 201220532684 patent/CN202871386U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9658417B2 (en) | 2013-12-02 | 2017-05-23 | Tyco Electronics Subsea Communications Llc | Conductive water blocking material including metallic particles and an optical cable and method of constructing an optical cable including the same |
| CN103903772A (en) * | 2014-03-04 | 2014-07-02 | 安徽恒晶电缆集团有限公司 | Flame-retardant cable |
| CN105405526A (en) * | 2015-12-07 | 2016-03-16 | 无锡裕德电缆科技有限公司 | Direct current traction tension-fracture-preventing power cable for rail transit of 1,500V or less |
| CN105895209A (en) * | 2016-06-06 | 2016-08-24 | 无锡市恒汇电缆有限公司 | Elliptic reinforced waterproof and moistureproof cable with micropore |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20181018 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |