CN204440925U - A kind of single core tension water-proof cable - Google Patents
A kind of single core tension water-proof cable Download PDFInfo
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- CN204440925U CN204440925U CN201420871960.0U CN201420871960U CN204440925U CN 204440925 U CN204440925 U CN 204440925U CN 201420871960 U CN201420871960 U CN 201420871960U CN 204440925 U CN204440925 U CN 204440925U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a kind of single core tension water-proof cable, comprise cable inner core, and the outer water blocking layer be coated on successively from inside to outside outside described cable inner core and insulating barrier; Described cable inner core stacks gradually coated forming by multiple conductor layer, described conductor layer comprises the first conductor layer and multiple the second conductor layer be coated on successively outside described first conductor layer, be provided with interior water blocking layer between conductor layer described in adjacent two, the sectional area of described cable inner core is greater than 10mm
2.The beneficial effects of the utility model: by by wrapped for interior water blocking layer between adjacent two conductor layers, can not only fixed conductor layer, prevent conductor layer loose, the moisture infiltrated in cable can also be absorbed, and more than 40 times of the own vol that can expand after interior water blocking layer water suction, can effectively intercept cable radial direction infiltration, also can absorbing cable longitudinal direction infiltration, prevent conductor oxidized.
Description
Technical field
The utility model relates to power cable technical field, more particularly, relates to a kind of single core tension water-proof cable.
Background technology
Along with the needs of social development, the use occasion of plant equipment and electronic product is more and more extensive, relate to the Special use occasion such as open air (drenching with rain), humidity, while plant equipment and the performance requirement harshness of electronic product own, to the waterproof requirement as the matching used electric wire of auxiliary also corresponding raising.
The domestic single core water-proof wire amassed more than 10 square millimeters for cross-sectional area of conductor generally adopts radial waterproof at present, namely adopts TPO insulating material waterproof.There is water, steam and easily penetrate into conductor by conductor gap in aforesaid way, thus causes conductor indium, affects the problems such as conductor performance.
Utility model content
The technical problems to be solved in the utility model is, for above-mentioned defect of the prior art, provides a kind of single core tension water-proof cable.
The utility model solves the technical scheme that its technical problem adopts:
A kind of single core tension water-proof cable is provided, comprises cable inner core, and the outer water blocking layer be coated on successively from inside to outside outside described cable inner core and insulating barrier; Described cable inner core stacks gradually coated forming by multiple conductor layer, described conductor layer comprises the first conductor layer and multiple the second conductor layer be coated on successively outside described first conductor layer, be provided with interior water blocking layer between conductor layer described in adjacent two, the sectional area of described cable inner core is greater than 10mm
2; Described first conductor layer is formed by many first conductor strand, described second conductor layer comprises many second conductors, described many second conductors are evenly coated on outside described first conductor layer, and the filament diameter of described first conductor and described second conductor is all less than 1.7mm.
In single core tension water-proof cable described in the utility model, described interior water blocking layer and outer water blocking layer form by waterstop is wrapped.
In single core tension water-proof cable described in the utility model, the thickness of described interior water blocking layer is 0.5mm ~ 0.8mm.
In single core tension water-proof cable described in the utility model, the thickness of described outer water blocking layer is 0.5mm ~ 1mm.
In single core tension water-proof cable described in the utility model, described first conductor and the second conductor form by many copper wire bundle strands, and the filament diameter of described copper wire is less than 0.18mm.
In single core tension water-proof cable described in the utility model, the monofilament elongates rate of described copper wire is greater than 20%.
In single core tension water-proof cable described in the utility model, described insulating barrier is halogen-free and low-smoke flame-retardant polyolefin composite bed.
In single core tension water-proof cable described in the utility model, the thickness of described insulating barrier is 1mm ~ 2mm.
In sum, implement single core tension water-proof cable of the present utility model, have following beneficial effect: first, the first conductor and the second conductor form by many soft copper wire bundle strands, with increase cable flexibility or can curvature.The conductor flexibility stranded by many single lines be good, can curvature large, when conductor bends, inside and outside conductor center line, two parts can motion compensation mutually, can not cause the plastic deformation of conductor, the flexibility of conductor and stability are improved greatly time bending.Secondly, by by wrapped for interior water blocking layer between adjacent two conductor layers, can not only fixed conductor layer, prevent conductor layer loose, the moisture infiltrated in cable can also be absorbed, and the own vol that can expand after water suction after the water suction of interior water blocking layer doubly more than, effectively can intercept the radial direction infiltration of cable, also can absorbing cable longitudinal direction infiltration, prevent conductor oxidized.3rd, cable inner core is coated with waterstop, and the water absorption of this waterstop is strong, can be expanded after water suction more than 40 times of own vol, this waterstop can intercept the radial direction infiltration of cable, and also the longitudinal direction infiltration of Absorbable rod cable, reaches the effect of cable radial direction and longitudinal omnibearing stereo waterproof.Finally, insulating barrier uses halogen-free and low-smoke flame-retardant polyolefin composite material, can not only meet outside general fire resistance, also have certain water resistance, effectively can prevent moisture content radial direction from infiltrating cable inside, thus extend the useful life of drag chain cable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of single core tension water-proof cable that one of the utility model preferred embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the one list core tension water-proof cable that the utility model preferred embodiment provides, this cable comprises cable inner core 1, and the outer water blocking layer 2 be coated on successively from inside to outside outside cable inner core 1 and insulating barrier 3.Wherein, cable inner core 1 stacks gradually coated forming by multiple conductor layer, conductor layer comprises the first conductor layer 11 and multiple the second conductor layer 12 be coated on successively outside the first conductor layer 11, and be provided with interior water blocking layer 13 between adjacent two conductor layers, the sectional area of cable inner core 1 is greater than 10mm
2.
Concrete, first conductor layer 11 forms by many first conductors 111 are stranded, second conductor layer 12 comprises many second conductors 121, and many second conductors 121 are evenly coated on outside the first conductor layer 11, and the filament diameter of the first conductor 111 and the second conductor 121 is all less than 1.7mm.
In the present embodiment, the first conductor 111 and the second conductor 121 form by many soft copper wire bundle strands, with increase cable flexibility or can curvature.The conductor flexibility stranded by many single lines be good, can curvature large, when conductor bends, inside and outside conductor center line, two parts can motion compensation mutually, can not cause the plastic deformation of conductor, the flexibility of conductor and stability are improved greatly time bending.
Further, in the present embodiment, copper wire soft described in each is annealing copper free wire, because annealing copper free wire is oxygen-free also not containing the fine copper of any deoxidier residue, therefore its electricapparatus performance is very excellent, and the monofilament elongates rate of copper free wire is more than 20%, monofilament elongates rate height illustrates that copper wire is soft, ductility strong, and bend resistance ability is strong.
Be different from blister copper silk of the prior art, the utility model use the filament diameter of copper wire to be all less than 1.7mm; Preferably, the filament diameter of copper wire is less than 1.6mm; In the present embodiment, the filament diameter of copper wire is 1.5mm.Because in the utility model, the filament diameter of copper wire is little, the quantity of quantity required blister copper silk used in prior art of copper wire needed for the conductor making to make same external diameter, like this can external force suffered by effective dispersed cable, therefore, the electric conductivity of the utility model conductor is strong, is not easy fracture, has extremely strong bend resistance ability without embrittlement phenomenon, through exceeding millions of time come and go bending motion after can not rupture, and then guarantee the physics of cable and electric property unaffected.
In addition, the stranded mode bundle of armour is adopted to be stranding into the first conductor 111 and the second conductor 121 on above-mentioned many soft copper wires, to guarantee that the conductor obtained has stronger intensity and bending ability, time stranded, the bundle strand twisting pitch of copper wire is less than or equal to 10 times of the stranded external diameter of copper wire, and the bundle of many copper wires strand direction of lay is left-hand.
As shown in Figure 1, the first conductor layer 11 is formed by many first conductors 111 are stranded, and in the present embodiment, the direction of lay of many first conductors 111 is contrary with the direction of lay of many copper wires.
Preferably, first conductor layer 11 had same outer diameter, identical direction of lay by many, and the first conductor 111 twisting of identical twisting pitch obtains, the first conductor 111 uniform stressed in the back and forth movement of cable in this first conductor layer 11 can be guaranteed, effectively strengthen the ability of cable bending.
Preferably, in the present embodiment, the first conductor layer 11 is seven, to make the first conductor layer 11 be formed rounded configurations arrangement, thus strengthens adaptive capacity and the scope of application of cable.
As shown in Figure 1, interior water blocking layer 13 is evenly coated on outside the first conductor layer 11, this interior water blocking layer 13 forms by waterstop is wrapped, waterstop realizes the major way that conductor blocks water, the water absorption of waterstop is strong, and more than 40 times of the own vol that can expand after water suction, effectively can intercept the radial direction infiltration of cable, also can absorbing cable longitudinal direction infiltration, play the effect of dual water suction.In the present embodiment, the thickness of interior water blocking layer 13 is 0.5mm ~ 0.8mm, and preferably, the thickness of water blocking layer 2 is 0.6mm.
Further, the second conductor layer 12 is evenly coated on outside interior water blocking layer 13, and this second conductor layer 12 is made up of many second conductors 121.Preferably, many second conductors 121 are evenly distributed on the outer surface of interior water blocking layer 13 successively, to make the second conductor layer 12 be formed rounded configurations arrangement, thus strengthen adaptive capacity and the scope of application of cable.
In the present embodiment, second conductor layer 12 is outer is also coated with an interior water blocking layer 13 and the second conductor layer 12 successively, namely cable inner core 1 comprises the first conductor layer 11 and two the second conductor layers 12 be coated on successively outside the first conductor layer 11, be provided with interior water blocking layer 13 between the first conductor layer 11 and the second conductor layer 12, between adjacent two second conductor layers 12, be also provided with interior water blocking layer 13.By by wrapped for interior water blocking layer 13 between adjacent two conductor layers, can not only fixed conductor layer, prevent conductor layer loose, the moisture infiltrated in cable can also be absorbed, more than 40 times of own vol and interior water blocking layer 13 can expand after water suction after absorbing water, can effectively intercept cable radial direction infiltration, also can absorbing cable longitudinal direction infiltration, prevent conductor oxidized.
Can be with what understand, the present embodiment does not limit the concrete quantity of the second conductor layer 12, the quantity of the second conductor layer 12 can also be increased, as cable inner core 1 comprises the first conductor layer 11 and three the second conductor layers 12 be coated on successively outside the first conductor layer 11 needed for reality.
As shown in Figure 1, be uniformly coated with outer water blocking layer 2 outside cable inner core 1, this outer water blocking layer 2 also forms by waterstop is wrapped, to play the effect of dual water suction.In the present embodiment, the thickness of outer water blocking layer 2 is 0.5mm ~ 1mm, and preferably, the thickness of water blocking layer 2 is 0.8mm.
As shown in Figure 1, outer water blocking layer 2 is coated with insulating barrier 3, and in the present embodiment, insulating barrier 3 is made up of halogen-free and low-smoke flame-retardant polyolefin composite material, to meet anti-flammability and the water proofing property of cable.Wherein, halogen-free and low-smoke flame-retardant polyolefin composite material is made up of the raw material of following parts by weight: EVA 40 ~ 60 parts, Mg (OH)
2or AL (OH)
3160 ~ 190 parts, LDPE 30 ~ 50 parts, compatilizer 5 ~ 20 parts, synergist 2 ~ 4 parts and stabilizer 0.5 ~ 1 part.
Be different from traditional fire proofing, this halogen-free and low-smoke flame-retardant polyolefin composite material not only can meet outside the general fire resistance of cable, also has certain water resistance, effectively anti-sealing radial direction can infiltrate cable inside.In addition; this halogen-free and low-smoke flame-retardant polyolefin composite material greatly improves the ageing resistance of cable; and improve hot strength; enhance the overall flexibility of cable; make insulating barrier 3 better can protect conductor; avoid because insulating barrier 3 weares and teares and destroy the insulating properties of cable, thus causing potential safety hazard.
In the present embodiment; the thickness of insulating barrier 3 is 1mm ~ 2mm; the insulating barrier 3 made due to halogen-free and low-smoke flame-retardant polyolefin composite material has stronger pliability and resistance to wear; make the thickness of traditional polyvinyl chloride insulation layer need reach more than a times of insulating barrier 3 thickness described in the application, just can have the protected effect identical with the application's insulating barrier 3.Preferably, the thickness of insulating barrier 3 is 0.8mm.
In sum, implement single core tension water-proof cable of the present utility model, there is following beneficial effect:
(1) first conductor and the second conductor form by many soft copper wire bundle strands, with increase cable flexibility or can curvature.The conductor flexibility stranded by many single lines be good, can curvature large, when conductor bends, inside and outside conductor center line, two parts can motion compensation mutually, can not cause the plastic deformation of conductor, the flexibility of conductor and stability are improved greatly time bending.
(2) pass through wrapped for interior water blocking layer between adjacent two conductor layers, can not only fixed conductor layer, prevent conductor layer loose, the moisture infiltrated in cable can also be absorbed, and the own vol that can expand after water suction after the water suction of interior water blocking layer doubly more than, can effectively intercept cable radial direction infiltration, also can absorbing cable longitudinal direction infiltration, prevent conductor oxidized.
(3) cable inner core is coated with waterstop, the water absorption of this waterstop is strong, more than 40 times of the own vol that can expand after water suction, and this waterstop can intercept the radial direction infiltration of cable, also the longitudinal direction infiltration of Absorbable rod cable, reaches the effect of cable radial direction and longitudinal omnibearing stereo waterproof.
(4) insulating barrier uses halogen-free and low-smoke flame-retardant polyolefin composite material, can not only meet outside general fire resistance, also have certain water resistance, effectively can prevent moisture content radial direction from infiltrating cable inside, thus extend the useful life of drag chain cable.
Although the utility model is described by specific embodiment, it will be appreciated by those skilled in the art that, when not departing from the utility model scope, various conversion can also be carried out and be equal to substituting to the utility model.In addition, for particular condition or material, various amendment can be made to the utility model, and not depart from scope of the present utility model.Therefore, the utility model is not limited to disclosed specific embodiment, and should comprise the whole execution modes fallen in the utility model right.
Claims (8)
1. a single core tension water-proof cable, is characterized in that, comprises cable inner core (1), and is coated on the outer outer water blocking layer (2) of described cable inner core (1) and insulating barrier (3) from inside to outside successively; Described cable inner core (1) stacks gradually coated forming by multiple conductor layer, described conductor layer comprises the first conductor layer (11) and is multiplely coated on described first conductor layer (11) the second conductor layer (12) outward successively, be provided with interior water blocking layer (13) between conductor layer described in adjacent two, the sectional area of described cable inner core (1) is greater than 10mm
2; Described first conductor layer (11) forms by many first conductors (111) are stranded, described second conductor layer (12) comprises many second conductors (121), described many second conductors (121) are evenly coated on described first conductor layer (11) outward, and the filament diameter of described first conductor (111) and described second conductor (121) is all less than 1.7mm.
2. single core tension water-proof cable according to claim 1, is characterized in that, described interior water blocking layer (13) and outer water blocking layer (2) form by waterstop is wrapped.
3. single core tension water-proof cable according to claim 2, is characterized in that, the thickness of described interior water blocking layer (13) is 0.5mm ~ 0.8mm.
4. single core tension water-proof cable according to claim 2, is characterized in that, the thickness of described outer water blocking layer (2) is 0.5mm ~ 1mm.
5. single core tension water-proof cable according to claim 1, is characterized in that, described first conductor (111) and the second conductor (121) form by many copper wire bundle strands, and the filament diameter of described copper wire is less than 0.18mm.
6. single core tension water-proof cable according to claim 5, it is characterized in that, the monofilament elongates rate of described copper wire is greater than 20%.
7. single core tension water-proof cable according to claim 1, is characterized in that, described insulating barrier (3) is halogen-free and low-smoke flame-retardant polyolefin composite bed.
8. single core tension water-proof cable according to claim 7, is characterized in that, the thickness of described insulating barrier (3) is 1mm ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871960.0U CN204440925U (en) | 2014-12-31 | 2014-12-31 | A kind of single core tension water-proof cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871960.0U CN204440925U (en) | 2014-12-31 | 2014-12-31 | A kind of single core tension water-proof cable |
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| Publication Number | Publication Date |
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| CN204440925U true CN204440925U (en) | 2015-07-01 |
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| CN201420871960.0U Active CN204440925U (en) | 2014-12-31 | 2014-12-31 | A kind of single core tension water-proof cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114746959A (en) * | 2019-12-06 | 2022-07-12 | 住友电气工业株式会社 | Multi-core cable |
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2014
- 2014-12-31 CN CN201420871960.0U patent/CN204440925U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114746959A (en) * | 2019-12-06 | 2022-07-12 | 住友电气工业株式会社 | Multi-core cable |
| CN114746959B (en) * | 2019-12-06 | 2024-05-28 | 住友电气工业株式会社 | Multi-core cable |
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