CN204991234U - Dampproofing waterproofing type cable - Google Patents
Dampproofing waterproofing type cable Download PDFInfo
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- CN204991234U CN204991234U CN201520796612.6U CN201520796612U CN204991234U CN 204991234 U CN204991234 U CN 204991234U CN 201520796612 U CN201520796612 U CN 201520796612U CN 204991234 U CN204991234 U CN 204991234U
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Abstract
The utility model provides a dampproofing waterproofing type cable, the control cable comprises insulated wire cores, insulation core includes the coalesced copper conductor, outside the coalesced copper conductor, ab intra and outward in proper order around the package have the first area that blocks water, crowded package crosslinked polyethylene insulating, around wrapping the second area that blocks water, many insulation core transposition stranding is tieed up by the non -woven fabrics, the gap filling gasket for packing that blocks water between insulation core, the non -woven fabrics is outer to cushion the area that blocks water around wrapping to have, it has ripple type metallic sheath to cushion the vertical package in outband layer that block water, the outer coating of metallic sheath has the pitch layer, crowded package has the polyethylene oversheath outside the pitch layer. This kind of cable possesses vertically simultaneously, radial waterproof construction, and blocking water nature is good, can avoid the long -term easy ageing and dielectric breakdown that causes of insulating water branch that produces in aqueous of cable effectively, prolongs the life of cable effectively. The utility model discloses the cable can use for a long time in the condition comparatively harsh soak, humid environment, stronger corrosion effects has simultaneously.
Description
Technical field
The utility model relates to cable technology, particularly relates to a kind of moisture-resisting water-proof type cable.
Background technology
In power engineering application, cable adopts the system of layings such as direct-burried, cable trough, tunnel usually, directly contacts unavoidably with water, even can short-term or long period of soaking in water, cause moisture slowly to penetrate into cable inside, have impact on the useful life of cable.Crosslinked polyethylene (XLPE) insulating material that current cable adopts usually, after cable runs a period of time, all can produce water tree phenomenon, Dang Shuishu grows into and cable insulation to a certain degree will be caused to puncture.
Along with the large-scale application of crosslinked cable in China, cause insulation water-treeing because surrounding environment moisture invades cable inside and cause the accident of cable breakdown to increase year by year, increasing user in the urgent need to having the cable of good block-water performance, to improve safety and the reliability of electric power system further.
Utility model content
The purpose of this utility model is, for the problem that above-mentioned existing cable water preventing ability is not good enough, provides a kind of moistureproof and waterproof type cable, and this moistureproof and waterproof type construction of cable advantages of simple, has both radial direction, longitudinal water-blocking function.
For achieving the above object, the technical solution used in the present invention is: described a kind of moistureproof and waterproof type cable, comprise insulated wire cores, described insulated wire cores comprises oxygen-free copper conductor, outside described oxygen-free copper conductor, from-inner-to-outer is surrounded with the first waterstop successively, extrudes crosslinked polyetylene insulated wrapped second waterstop.
It is outer that described first waterstop is arranged at oxygen-free copper conductor, can guarantee that oxygen-free copper conductor and insulation (crosslinked polyetylene insulated wrapped) gap block water.Described second waterstop is arranged in insulating outer layer, can guarantee the longitudinal water-blocking of adjacent insulated wire cores contact-making surface.For reducing low pressure multicore cable external diameter, effectively cost-saving, current manufacturing enterprise adopts profile conductor structure usually, adopt the conductor of profile conductor structure, it adjacent two thoroughly does away with and to connect face, place after edge strandings complete comparatively round conductor is large a lot, and contact position has certain gap, this gap is that packing material cannot touch position, for effective tissue water molecule is propagated along clearance for insulation, the outer wrapped waterstop of each root profile conductor insulated wire cores, by this structure, hydrone can be effectively avoided to propagate along insulated wire cores gap
Many described insulated wire cores twisted synthesizing cables are also tightened by nonwoven fabrics, the described insulated wire cores gap-fill nonwoven fabrics skin described in gasket for packing that blocks water is surrounded with buffer water-blocking band, described buffer water-blocking band adopts super absorbent resin and high-temperature polyester sponge combination, possesses buffer mechanism stress and the double effect that blocks water simultaneously, described buffer water-blocking band skin is vertical is surrounded by ripple type metallic sheath, be coated with bitumen layer outside described metallic sheath, outside described bitumen layer, be extruded with outer protective polyethylene cover.
Buffer water-blocking band both as the longitudinal direction group water layer become between cable core and metallic sheath, played cushioning effect again, and the metallic sheath that buffering external force causes, to the pressure of core inside, avoids weld metal sheath to insulation harm simultaneously.Described ripple type metallic sheath compares as watertight composition with employing pe sheath; pe sheath also has certain anti-" filterability " for hydrone; but not anti-" permeability "; described corrugated metallic sheath can stop moisture completely; compare with plastic-aluminum composite sheath, corrugated metallic sheath has stronger damage-resistant, creep resistant type, vibration resistance, can be used as armour protective wire core inner structure; described metallic sheath applies bitumen layer outward successively, extrudes pe sheath.Outer protective polyethylene cover has good corrosion resistance, and cold excellent performance, the coating of bound bitumen layer, guarantees that cable can at safe and stable operation under comparatively harsh conditions.
Further, described oxygen-free copper conductor is waterproofing type oxygen-free copper conductor, and described waterproofing type copper conductor comprises stranded stranded copper wire and water blocking yarn, guarantees cable cabling gap longitudinal water-blocking.
Further, described nonwoven fabrics skin is surrounded with buffer water-blocking band, as longitudinal water-resisting bed course.
Further, described ripple type metallic sheath is seamless aluminium tubing.Described ripple type metal adopts the vertical bag welding of argon arc welding, ensures the radial water-resisting humidity resistance of cable.
A kind of moisture-resisting water-proof type of the utility model construction of cable is simple, reasonable, compact, has the following advantages compared with prior art:
(1) longitudinal water-blocking is effective, longitudinal water-blocking structure adopts outer wrapped first waterstop of waterproofing type oxygen-free copper conductor, conductor, the second waterstop, the gasket for packing that blocks water, bitumen layer can effectively avoid moisture to infiltrate along the gap between the axial any two kinds of different materials of cable, accomplishes that longitudinal waterproof is without omission.
(2) outer the second wrapped waterstop of insulated wire cores provides strong longitudinal water-blocking guarantee as profile conductor insulated wire cores contact position gap, is specially adapted to tile-type, sector conductor.
(3) radial water-resisting is effective, integral protection is good, described corrugated metallic sheath compares as watertight composition with employing pe sheath, pe sheath also has certain anti-" filterability " for hydrone, but not anti-" permeability ", described corrugated metallic sheath can stop moisture completely, compare with plastic-aluminum composite sheath, whole cable uniform external diameter, attractive in appearance, without aluminum plastic composite belt longitudinal bag improperly, cable sheath wrinkling, corrugated metallic sheath has stronger damage-resistant simultaneously, creep resistant type, vibration resistance, can be used as armour protective wire core inner structure.
(4) practical, the utility model moisture-resisting water-proof type cable, accomplishing longitudinal, radial waterproof simultaneously, has stronger corrosion resistance and resistance to low temperature, long-term stable operation can lay environment in comparatively complicated wet environment and water.
To sum up, the utility model moisture-resisting water-proof type construction of cable is simple, and cable electrical performance, longitudinal water-blocking are effective, and radial water resistance is excellent, and accommodative ability of environment is strong, is a kind of ideal high water proofing property cable.
Accompanying drawing explanation
Fig. 1 is a kind of moisture-resisting water-proof type of the utility model cross-section of cable schematic diagram.
Embodiment
Below in conjunction with embodiment, the utility model is further illustrated:
Embodiment 1
Fig. 1 is a kind of moisture-resisting water-proof type of the utility model cross-section of cable schematic diagram.
Effectively block water molecule is longitudinal along cable, radial penetration is inner to cable to present embodiment discloses a kind of energy, effective prevention moisture is along cable longitudinal propagation, the generation of maximum prevention cross-linked polyethylene insulated cable insulation water tree, guarantee that cable is in humidity, the moisture-resisting water-proof type cable of safe operation under water environment.The concrete structure of this moisture-resisting water-proof type cable as shown in Figure 1, comprise insulated wire cores, described insulated wire cores comprises waterproofing type oxygen-free copper conductor 1, described waterproofing type oxygen-free copper conductor 1 is by stranded copper wire and water blocking yarn is stranded forms, the interpolation of water blocking yarn can realize the conductor longitudinal water-blocking of cable, and the copper wire that the present embodiment adopts is the red copper that purity is greater than 99.98%.
Described waterproofing type oxygen-free copper conductor from-inner-to-outer successively wrapped first waterstop 2, extrude crosslinked polyetylene insulated 3, wrapped second waterstop 4 of insulating outer layer, for reducing low pressure multicore cable external diameter, effectively cost-saving, described second blocks water band 4, phase hydrone can be effectively avoided to propagate in the gap of adjacent insulated wire cores contact-making surface, this point, in tile-type, fan-shaped insulated wire cores stranding, acts on more obvious.
Many described insulated wire cores twisted synthesizing cables, and tightened by nonwoven fabrics 6, described insulated wire cores gap-fill blocks water gasket for packing 5, the outer wrapped buffer water-blocking band 7 of nonwoven fabrics, described buffer water-blocking band 7 is both as the longitudinal direction group water layer become between cable core and metallic sheath, play cushioning effect again, the metallic sheath that buffering external force causes is to the pressure of core inside, avoid weld metal sheath to insulation harm simultaneously, the vertical bag ripple type metallic sheath 8 of described buffer water-blocking band 7 skin, the metal sheath of sealing is ideal radial water-resisting structure, ripple type metallic sheath 8 has stronger damage-resistant, creep resistant type, vibration resistance, can be used as armour protective wire core inner structure, described ripple type metallic sheath 8, that metal tape is through cleaning, essence is cut, vertical bag, welding, embossing process realizes, under the protection of argon gas and helium, solder joint is blowed to continuously by the gas protected, take away heat rapidly, welding position is evenly cooled fast, the construction of cable can not be subject to any harmful effect, also avoid the high-temperature oxydation of aluminium sheath simultaneously.Described ripple type metallic sheath 8 is outer applies bitumen layer 9 successively, extrudes pe sheath 10, the mode that both utilizations combine, realizes the corrosion-resistant and cold resistant characteristic that cable is more outstanding.
A kind of moisture-resisting water-proof type cable that the present embodiment provides, electric property is superior, whole cable is longitudinal, radial water-resisting is effective, adopt water-blocking conductor, waterstop, the filling that blocks water, corrugated metal sheath many integration structure, effective block water molecule is longitudinal along cable, radial penetration is inner to cable, farthest prevents the generation that cross-linked polyethylene insulated cable insulation water is set, guarantee that cable is in humidity, safe operation under water environment.
The utility model is not limited to a kind of moisture-resisting water-proof type cable described in above-described embodiment, and wherein the change of each layer thickness is all within protection range of the present utility model.
Embodiment 2
Present embodiment discloses a kind of moisture-resisting water-proof type cable, its structure is substantially the same manner as Example 1, is surrounded with buffer water-blocking band unlike described nonwoven fabrics skin.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (4)
1. a moisture-resisting water-proof type cable, is characterized in that, comprises insulated wire cores, and described insulated wire cores comprises oxygen-free copper conductor, and outside described oxygen-free copper conductor, from-inner-to-outer is surrounded with the first waterstop successively, extrudes crosslinked polyetylene insulated, wrapped second waterstop;
Many described insulated wire cores twisted synthesizing cables are also tightened by nonwoven fabrics, described insulated wire cores gap-fill blocks water gasket for packing, described nonwoven fabrics skin is surrounded with buffer water-blocking band, described buffer water-blocking band skin is vertical is surrounded by ripple type metallic sheath, be coated with bitumen layer outside described metallic sheath, outside described bitumen layer, be extruded with outer protective polyethylene cover.
2. moisture-resisting water-proof type cable according to claim 1, it is characterized in that, described oxygen-free copper conductor is waterproofing type oxygen-free copper conductor, and described waterproofing type copper conductor comprises stranded stranded copper wire and water blocking yarn.
3. moisture-resisting water-proof type cable according to claim 1, it is characterized in that, described nonwoven fabrics skin is surrounded with buffer water-blocking band.
4. moisture-resisting water-proof type cable according to claim 1, it is characterized in that, described ripple type metallic sheath is seamless aluminium tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520796612.6U CN204991234U (en) | 2015-10-15 | 2015-10-15 | Dampproofing waterproofing type cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520796612.6U CN204991234U (en) | 2015-10-15 | 2015-10-15 | Dampproofing waterproofing type cable |
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| Publication Number | Publication Date |
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| CN204991234U true CN204991234U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520796612.6U Active CN204991234U (en) | 2015-10-15 | 2015-10-15 | Dampproofing waterproofing type cable |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057327A (en) * | 2016-06-27 | 2016-10-26 | 国网河南省电力公司南阳供电公司 | Moistureproof underground cable protection device |
| CN106782795A (en) * | 2016-12-31 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of 0.6/1 kV shallow seas easily peelable optical fiber composite cable of waterproof tensile |
| CN106782865A (en) * | 2016-12-31 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of 0.6/1 kV shallow seas waterproof tensile optical fiber composite cable |
| CN106876035A (en) * | 2017-02-22 | 2017-06-20 | 江苏通鼎光电科技有限公司 | A kind of seamless internal screening railway digital signal cable |
| CN114019639A (en) * | 2022-01-06 | 2022-02-08 | 长飞光纤光缆股份有限公司 | Bulletproof optical cable and preparation method thereof |
-
2015
- 2015-10-15 CN CN201520796612.6U patent/CN204991234U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057327A (en) * | 2016-06-27 | 2016-10-26 | 国网河南省电力公司南阳供电公司 | Moistureproof underground cable protection device |
| CN106782795A (en) * | 2016-12-31 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of 0.6/1 kV shallow seas easily peelable optical fiber composite cable of waterproof tensile |
| CN106782865A (en) * | 2016-12-31 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of 0.6/1 kV shallow seas waterproof tensile optical fiber composite cable |
| CN106876035A (en) * | 2017-02-22 | 2017-06-20 | 江苏通鼎光电科技有限公司 | A kind of seamless internal screening railway digital signal cable |
| CN114019639A (en) * | 2022-01-06 | 2022-02-08 | 长飞光纤光缆股份有限公司 | Bulletproof optical cable and preparation method thereof |
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