CN104409153A - Highly-filled and highly-water-blocking cable - Google Patents
Highly-filled and highly-water-blocking cable Download PDFInfo
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- CN104409153A CN104409153A CN201410662344.9A CN201410662344A CN104409153A CN 104409153 A CN104409153 A CN 104409153A CN 201410662344 A CN201410662344 A CN 201410662344A CN 104409153 A CN104409153 A CN 104409153A
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Abstract
The invention relates to a highly-filled and highly-water-blocking cable, which comprises a cable core and a protective cover wrapped outside the cable core; the cable core is a conductor formed by winding a plurality of electrical units together; each electrical unit comprises a metal bare wire, a water-blocking tape and an ethylene propylene rubber insulating layer, wherein the water-blocking tape and the ethylene propylene rubber insulating layer are sequentially wrapped outside the metal bare wire from inside to outside; the protective cover is an outer chlorinated polyethylene protective cover; and a crosslinked polyethylene waterproof layer is arranged between the cable core and the protective cover. According to the invention, by adopting multiple layers of water-blocking structures, longitudinal and transverse water-blocking effects can be achieved, so that the water-blocking property of the cable is greatly increased; furthermore, because inner structures are more compact, the cable also cannot be deformed even being extruded outside; water leaked in the cable can be absorbed, so that the inner structures are kept dry; simultaneously, because the outer chlorinated polyethylene protective cover is used as the protective cover, the cable has cold-resistant and anti-corrosive effects; the comprehensive properties of the cable can be increased; the excellent protective property can be provided for the cable; and thus, the service life of the cable is effectively prolonged.
Description
Technical field
The invention belongs to power cable technical field, be specifically related to a kind of high filling high water resistant cable.
Background technology
Along with national development, electric power system and traffic system are also at high speed development, and cable is widely used in harbour, tunnel, the places such as hydraulic engineering; South rainy climate condition is changeable, and how unstable cable works in a humidity environment, and the work wanting cable stable must strengthen the block-water effect to cable.Traditional cable water preventing ability is poor, along with cable gradually aging moisture can penetrate into insulating barrier gradually, make increase maintenance difficulty and security risk.
The primary structure of present cable is made up of cable core and sheath, core cross section is mostly circular, there is space by between the core that stranding is adjacent, because space can affect the compactness of the construction of cable, when using for a long time or be subject to extraneous extruding, cable can be made to deform.
Therefore, how improving the block-water effect of cable, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The invention provides a kind of high filling high water resistant cable, there is good water preventing ability, and extend the useful life of cable.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of high filling high water resistant cable, comprise cable core and be coated on the protective jacket outside described cable core, described cable core is the conductor that some electric units are intertwined, described electric unit comprises metal bare wire, is coated on waterstop outside described metal bare wire and ethylene propylene rubber insulated layer successively from inside to outside, described protective jacket is haloflex oversheath, is provided with crosslinked polyethylene watertight composition between described cable core and protective jacket.Cable core is wound along with electric unit, waterstop forms the horizontal water proof that blocks water, and between cable core and protective jacket, also have the crosslinked polyethylene watertight composition longitudinally arranged, form longitudinal water proof that blocks water, whole cable is made to have multiple block-water effect, can reach vertical, horizontal two-way water-resistant, greatly strengthen the block-water effect of cable.
Haloflex (CPE) can not decompose when normally using and storing.It has two kinds of typical structures, and one is that chlorine atom is random and be uniformly distributed on macromolecular chain, becomes saturated elastomer; Two is chlorine atom random block distributed unevenly on macromolecular chain, shows the behavior of duroplasts.The haloflex of chlorinty 25%-45% is the specific rubber of a kind of heat-resisting, weathering and resistance to combustion, has self-extinguishment.The haloflex of chlorinty more than 45% is white uniformity graininess amorphous solid.Along with the replacement of chlorine, destroy poly crystallinity, vitrification point is reduced, but after exceeding certain chlorinity, vitrification point raises again.Due to the introducing of the saturated chlorine atom of macromolecular structure, CPE is made to have good pliability, ozone resistance, weather resisteant, heat-resistant aging, oil resistance, anti-flammability, electrical property, chemical proofing.Elasticity and cold resistance are slightly poor.It also has the ability of very high accommodation filler.Adopt CPE as protective jacket, there is Cold-resistant anti-corrosion effect, the combination property of cable can be improved, for cable core provides excellent protective value, effectively extend the physical life of cable.
Preferably, steel band is provided with between described crosslinked polyethylene watertight composition and protective jacket.Effectively can stop biological the baiting and destroy such as mouse ant, protect the complete of internal structure and safety, crushing resistance can be improved simultaneously, ensure that inner cable core normally works.
Preferably, described steel band is double plastic-coated steel band.
Preferably, the space between the space between described cable core and crosslinked polyethylene watertight composition, electric unit is all filled with flexible polyurethane foams, is also provided with fire-proof heat-insulating reinforcement in the space between electric unit.Flexible polyurethane foams is adopted to fill, form the soft right foam matter packed layer of plasticity, inner structure is more compacted, even if be subject to extraneous extruding, cable also can remain unchanged shape, and flexible polyurethane foams to have water absorption high, the characteristic that water preventing ability is excellent, the moisture that seepage is come in can be absorbed, ensure that internal structure is dry.
Preferably, described fire-proof heat-insulating reinforcement is glass fibre belt.Glass fiber tape adopts high-temperature-resistant high type glass fibre, processes through special process.There is high temperature resistant, insulation, insulation, fire protection flame retarding, corrosion-resistant, ageing-resistant, the feature such as weatherability, high strength, smooth in appearance.Spun-glass insulation heat insulating belt, silicon rubber glass fibre is mainly divided into protect heat insulating belt, glass radiation proof heat-preserving heat-insulating belt etc.
The invention discloses a kind of high filling high water resistant cable, adopt multilayer stop water, obtain longitudinal and transverse two-way water-resistant effect, the block-water performance of cable is increased substantially, and adopts flexible polyurethane foams to fill, inner structure is more compacted, even if be subject to extraneous extruding, cable also can remain unchanged shape, can absorb the moisture that seepage is come in, and ensures that internal structure is dry.Adopt haloflex oversheath as protective jacket, there is Cold-resistant anti-corrosion effect, the combination property of cable can be improved, for cable core provides excellent protective value, effectively extend the physical life of cable.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is the structural representation of a kind of high filling high water resistant cable of the present invention.
Embodiment
As shown in Figure 1, for the preferred embodiment 1 of a kind of high filling high water resistant cable of the present invention, comprise cable core and be coated on the protective jacket 8 outside described cable core, described cable core is the conductor that some electric units are intertwined, described electric unit comprises metal bare wire 6, is coated on waterstop 3 outside described metal bare wire 6 and ethylene propylene rubber insulated layer 7 successively from inside to outside, described protective jacket 8 is haloflex oversheath, is provided with crosslinked polyethylene watertight composition 2 between described cable core and protective jacket 8.Cable core is wound along with electric unit, waterstop 3 forms the horizontal water proof that blocks water, and between cable core and protective jacket 8, also have the crosslinked polyethylene watertight composition 2 longitudinally arranged, form longitudinal water proof that blocks water, whole cable is made to have multiple block-water effect, can reach vertical, horizontal two-way water-resistant, greatly strengthen the block-water effect of cable.
Steel band 1 is provided with between described crosslinked polyethylene watertight composition 2 and protective jacket 8.Described steel band 1 is double plastic-coated steel band.Effectively can stop biological the baiting and destroy such as mouse ant, protect the complete of internal structure and safety, crushing resistance can be improved simultaneously, ensure that inner cable core normally works.
Space between space between described cable core and crosslinked polyethylene watertight composition 2, electric unit is all filled with flexible polyurethane foams 5, is also provided with fire-proof heat-insulating reinforcement 4 in the space between electric unit.Described fire-proof heat-insulating reinforcement 4 is glass fibre belt.Flexible polyurethane foams 5 is adopted to fill, form the soft right foam matter packed layer of plasticity, inner structure is more compacted, even if be subject to extraneous extruding, cable also can remain unchanged shape, and flexible polyurethane foams 5 to have water absorption high, the characteristic that water preventing ability is excellent, the moisture that seepage is come in can be absorbed, ensure that internal structure is dry.
The foregoing is only specific embodiments of the invention, but technical characteristic of the present invention is not limited thereto, any those skilled in the art is in the field of the invention, and the change done or modification are all encompassed among the scope of the claims of the present invention.
Claims (5)
1. one kind high filling high water resistant cable, comprise cable core and be coated on the protective jacket (8) outside described cable core, it is characterized in that: described cable core is the conductor that some electric units are intertwined, described electric unit comprises metal bare wire (6), is coated on described metal bare wire (6) waterstop outward (3) and ethylene propylene rubber insulated layer (7) successively from inside to outside, described protective jacket (8) is haloflex oversheath, is provided with crosslinked polyethylene watertight composition (2) between described cable core and protective jacket (8).
2. a kind of high filling high water resistant cable according to claim 1, is characterized in that: be provided with steel band (1) between described crosslinked polyethylene watertight composition (2) and protective jacket (8).
3. a kind of high filling high water resistant cable according to claim 2, is characterized in that: described steel band (1) is double plastic-coated steel band.
4. a kind of high filling high water resistant cable according to claim 1, it is characterized in that: the space between the space between described cable core and crosslinked polyethylene watertight composition (2), electric unit is all filled with flexible polyurethane foams (5), in the space between electric unit, be also provided with fire-proof heat-insulating reinforcement (4).
5. a kind of high filling high water resistant cable according to claim 4, is characterized in that: described fire-proof heat-insulating reinforcement (4) is glass fibre belt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410662344.9A CN104409153A (en) | 2014-11-19 | 2014-11-19 | Highly-filled and highly-water-blocking cable |
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CN201410662344.9A CN104409153A (en) | 2014-11-19 | 2014-11-19 | Highly-filled and highly-water-blocking cable |
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CN104409153A true CN104409153A (en) | 2015-03-11 |
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CN201410662344.9A Pending CN104409153A (en) | 2014-11-19 | 2014-11-19 | Highly-filled and highly-water-blocking cable |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108999004A (en) * | 2018-08-22 | 2018-12-14 | 张文英 | A kind of load-bearing wirerope oils anti-corrosive apparatus |
CN111048254A (en) * | 2019-11-29 | 2020-04-21 | 西安冉科信息技术有限公司 | Cable structure suitable for low-temperature area |
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CN201364766Y (en) * | 2009-03-09 | 2009-12-16 | 常州市新东方电缆有限公司 | Water-blocking power cable for ships |
CN101625913A (en) * | 2008-07-10 | 2010-01-13 | 刘斌恒 | Cable migrating and moving in water |
CN201477934U (en) * | 2009-08-07 | 2010-05-19 | 安徽江淮电缆集团有限公司 | Waterproof ice and snow prevention wind force cable |
CN201732619U (en) * | 2010-05-19 | 2011-02-02 | 江苏亨通线缆科技有限公司 | Detection cable with good water blocking function for offshore oil exploration |
CN201903677U (en) * | 2010-12-16 | 2011-07-20 | 江苏俊知光电通信有限公司 | Waterproof optical cable |
CN203013323U (en) * | 2012-11-05 | 2013-06-19 | 安徽金桥电缆有限公司 | Reinforced water-retardation wire cable |
CN204166978U (en) * | 2014-11-19 | 2015-02-18 | 浙江汉维通信器材有限公司 | A kind of high filling high water resistant cable |
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2014
- 2014-11-19 CN CN201410662344.9A patent/CN104409153A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101625913A (en) * | 2008-07-10 | 2010-01-13 | 刘斌恒 | Cable migrating and moving in water |
CN201364766Y (en) * | 2009-03-09 | 2009-12-16 | 常州市新东方电缆有限公司 | Water-blocking power cable for ships |
CN201477934U (en) * | 2009-08-07 | 2010-05-19 | 安徽江淮电缆集团有限公司 | Waterproof ice and snow prevention wind force cable |
CN201732619U (en) * | 2010-05-19 | 2011-02-02 | 江苏亨通线缆科技有限公司 | Detection cable with good water blocking function for offshore oil exploration |
CN201903677U (en) * | 2010-12-16 | 2011-07-20 | 江苏俊知光电通信有限公司 | Waterproof optical cable |
CN203013323U (en) * | 2012-11-05 | 2013-06-19 | 安徽金桥电缆有限公司 | Reinforced water-retardation wire cable |
CN204166978U (en) * | 2014-11-19 | 2015-02-18 | 浙江汉维通信器材有限公司 | A kind of high filling high water resistant cable |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108999004A (en) * | 2018-08-22 | 2018-12-14 | 张文英 | A kind of load-bearing wirerope oils anti-corrosive apparatus |
CN108999004B (en) * | 2018-08-22 | 2021-12-24 | 张文英 | Bearing steel cable oiling and corrosion preventing device |
CN111048254A (en) * | 2019-11-29 | 2020-04-21 | 西安冉科信息技术有限公司 | Cable structure suitable for low-temperature area |
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Application publication date: 20150311 |