CN204857265U - Low fire -retardant type radiation cross -linking power cable structure of cigarette - Google Patents
Low fire -retardant type radiation cross -linking power cable structure of cigarette Download PDFInfo
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- CN204857265U CN204857265U CN201520600315.XU CN201520600315U CN204857265U CN 204857265 U CN204857265 U CN 204857265U CN 201520600315 U CN201520600315 U CN 201520600315U CN 204857265 U CN204857265 U CN 204857265U
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- sheath
- flame retardant
- power cable
- cable structure
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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 relates to the technical field of cables, a low fire -retardant type radiation cross -linking power cable structure of cigarette is disclosed, establish the cable core in the bush including a plurality of root, the cable core includes the conductor, establishes the sheath the conductor outside, and the conductor includes that central monofilament, a plurality of successive layer strand the molded lines monofilament in central monofilament periphery, and the molded lines is unifilar transversally to be personally submitted trapezoidally, and the space intussuseption between cable core and the sheath is filled with fire -retardant filler, and the outside of bush is equipped with the oversheath, is equipped with the armor between bush and the oversheath, sheath, bush, oversheath make by crosslinked polyethylene. The utility model discloses have fire -retardant, the block -water performance good, difficultly during the burning produce smog, use safer beneficial effect.
Description
Technical field
The utility model relates to field of cable technology, particularly relates to a kind of low-smoke and flame retardant type irradiation cross-linked power cable structure.
Background technology
Along with the fast development that domestic economy is built, building trade is surging forward, and the low-voltage insulation electric wire demand being widely used in architectural engineering also increases rapidly.At present, the insulated wire cable being applied to architectural engineering mainly contains two large classes: one is traditional BLV cable, and this is that a class use amount is large and the product that use face is very wide, produces and use the history of existing more than 50 year in China.Cable has power cable, control cables, compensating cable, shielded type cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resisting cable, shipboard cable, mining cable, aluminium alloy cable etc., they are all made up of sub-thread or stranded conductor and insulating barrier, are used for connecting circuit, electrical equipment etc.But insulating barrier at present in cable, oversheath are all make by PVC material, PVC cable-flame retardant, block-water performance are poor, and when ignition of cable, PVC burning can produce a large amount of poisonous smog, uses dangerous.
Utility model content
The problems referred to above that the utility model exists to solve cable of the prior art, provide a kind of fire-retardant, block-water performance good, not easily produce smog during burning, use safer low-smoke and flame retardant type irradiation cross-linked power cable structure.
To achieve these goals, the utility model adopts following technical scheme:
A kind of low-smoke and flame retardant type irradiation cross-linked power cable structure, comprise the some cables core be located in lining, described cable core comprises conductor, the sheath be located at outside conductor, described conductor comprises center monofilament, some molded line monofilament being successively stranded in monofilament periphery, center, the cross section of described molded line monofilament is trapezoidal, flame retardant filler is filled with in space between described cable core and sheath, the outside of described lining is provided with oversheath, be provided with armouring between described lining and oversheath, described sheath, lining, oversheath are made by crosslinked polyethylene.
Flame retardant filler has good flame retardant effect, and armouring effectively increases cable strength, and armouring also has certain flame retardant effect simultaneously; The high energy electron line utilizing electron accelerator to produce carries out cross-linking radiation to the crosslinked polyethylene in cable, make between polyethylene molecule covalent bond form a netted three-dimensional structure, and define the three-dimensional lattice being less than hydrone, improve rapidly the performance of polyvinyl resin, improve series of physical, the chemical properties such as thermal deformation, resistance to wear, chemical proofing, stress crack resistant, thus overall heat-resisting, wear-resisting, the fire resistance improving cable, improve block-water performance simultaneously; Crosslinked polyethylene is not easily burned, even if the cigarette produced during burning is little, uses safer.In this cable configuration, sheath, lining, oversheath effectively play three layers of fire-retardant, resistance effect.
As preferably, three cables core are provided with in described lining, the center of described lining is provided with nylon support bar, the cross section of described nylon support bar is triangular in shape, three sides of nylon support bar are respectively equipped with the deep-slotted chip breaker distributed vertically, and the side of three cables core is divided and fitted with the cambered surface one_to_one corresponding of three deep-slotted chip breakers.Nylon support bar improves axial tension, the compressive property of cable, plays good supporting and location effect simultaneously, effectively prevent the Contact of cable core, rub three cables core.
As preferably, the bottom centre of described deep-slotted chip breaker is provided with the location notch distributed vertically, and the outside of described sheath is provided with distribution vertically and the positioning convex strip coordinated with location notch.In cable manufacturing process, the positioning convex strip of cable core side snaps in the location notch inner position on nylon support bar, then carries out subsequent step, prevents cable core in manufacturing process from dropping.
As preferably, be provided with water blocking layer between described conductor and sheath, the inner ring of described lining is provided with fire-retardant band.Described water blocking layer is water blocking yarn, and described fire-retardant band is low-smoke non-halogen flame-retardant band.Water blocking layer improves block-water performance further, and the raising of low-smoke non-halogen flame-retardant band is fire-retardant thinks performance, and the cigarette produced after burning is little.
As preferably, described flame retardant filler is rock wool fibers or glass fibre.Rock wool fibers or glass fibre can play fire-retardant, heat-proof quality, play a good protection to cable core.
Therefore, the utility model have fire-retardant, block-water performance good, not easily produce smog during burning, use safer beneficial effect.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the cross-sectional view of nylon support bar.
In figure: cable core 1, lining 2, nylon support bar 3, flame retardant filler 4, oversheath 5, armouring 6, water blocking layer 7, fire-retardant band 8, conductor 10, sheath 11, positioning convex strip 12, deep-slotted chip breaker 30, location notch 31, center monofilament 100, molded line monofilament 101.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of low-smoke and flame retardant type irradiation cross-linked power cable structure as shown in Figure 1, comprise the some cables core 1 be located in lining 2, cable core 1 comprises conductor 10, the sheath 11 be located at outside conductor, conductor 10 comprises center monofilament 100, some molded line monofilament 101 being successively stranded in monofilament periphery, center, the cross section of molded line monofilament 101 is trapezoidal, molded line monofilament is successively closely stranded, conductor gap is few, thus the external diameter of the conductor reduced greatly when cross section is identical, thus decrease the use material of sheath, cable core 1 in the present embodiment is three, the center of lining 2 is provided with nylon support bar 3, as shown in Figure 2, the cross section of nylon support bar 3 is triangular in shape, three sides of nylon support bar are respectively equipped with the deep-slotted chip breaker 30 distributed vertically, the bottom centre of deep-slotted chip breaker 30 is provided with the location notch 31 distributed vertically, the outside of sheath 11 is provided with Distribution and localization raised line 12 vertically, the side of three cables core is divided and is fitted with the cambered surface one_to_one corresponding of three deep-slotted chip breakers, positioning convex strip snaps in location notch, nylon support bar effectively can improve the tension of cable axis, compressive property, simultaneously in cable making process, nylon support bar is used for cable core location, thus make manufacture process more laborsaving, convenient.
Be filled with flame retardant filler 4 in space between cable core 2 and sheath 1, flame retardant filler is rock wool fibers or glass fibre; The outside of lining is provided with oversheath 5, is provided with armouring 6 between lining 2 and oversheath 5, and sheath, lining, oversheath are made by crosslinked polyethylene; Be provided with water blocking layer 7 between conductor 10 and sheath 11, the inner ring of lining 2 is provided with fire-retardant band 8, and the water blocking layer in the present embodiment is water blocking yarn, and fire-retardant band is low-smoke non-halogen flame-retardant band, and water blocking layer plays resistance effect, and fire-retardant band plays flame retardant effect.Cable molding well after, the high energy electron line utilizing electron accelerator to produce carries out cross-linking radiation to the crosslinked polyethylene in cable, make between polyethylene molecule covalent bond form a netted three-dimensional structure, and define the three-dimensional lattice being less than hydrone, improve rapidly the performance of polyvinyl resin, improve series of physical, the chemical properties such as thermal deformation, resistance to wear, chemical proofing, stress crack resistant, thus overall heat-resisting, wear-resisting, the fire resistance improving cable, improve block-water performance simultaneously; Crosslinked polyethylene is not easily burned, even if the cigarette produced during burning is little, uses safer.In this cable configuration, sheath, lining, oversheath effectively play three layers of fire-retardant, resistance effect.Therefore, the utility model have fire-retardant, block-water performance good, not easily produce smog during burning, use safer beneficial effect.
Claims (6)
1. a low-smoke and flame retardant type irradiation cross-linked power cable structure, comprise the some cables core be located in lining, it is characterized in that, described cable core comprises conductor, be located at the sheath outside conductor, described conductor comprises center monofilament, some molded line monofilament being successively stranded in monofilament periphery, center, the cross section of described molded line monofilament is trapezoidal, flame retardant filler is filled with in space between described cable core and sheath, the outside of described lining is provided with oversheath, armouring is provided with between described lining and oversheath, described sheath, lining, oversheath is made by crosslinked polyethylene.
2. low-smoke and flame retardant type irradiation cross-linked power cable structure according to claim 1, it is characterized in that, three cables core are provided with in described lining, the center of described lining is provided with nylon support bar, the cross section of described nylon support bar is triangular in shape, three sides of nylon support bar are respectively equipped with the deep-slotted chip breaker distributed vertically, and the side of three cables core is divided and fitted with the cambered surface one_to_one corresponding of three deep-slotted chip breakers.
3. low-smoke and flame retardant type irradiation cross-linked power cable structure according to claim 2, it is characterized in that, the bottom centre of described deep-slotted chip breaker is provided with the location notch distributed vertically, and the outside of described sheath is provided with distribution vertically and the positioning convex strip coordinated with location notch.
4. the low-smoke and flame retardant type irradiation cross-linked power cable structure according to claim 1 or 2 or 3, it is characterized in that, be provided with water blocking layer between described conductor and sheath, the inner ring of described lining is provided with fire-retardant band.
5. low-smoke and flame retardant type irradiation cross-linked power cable structure according to claim 4, it is characterized in that, described water blocking layer is water blocking yarn, and described fire-retardant band is low-smoke non-halogen flame-retardant band.
6. low-smoke and flame retardant type irradiation cross-linked power cable structure according to claim 1, it is characterized in that, described flame retardant filler is rock wool fibers or glass fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600315.XU CN204857265U (en) | 2015-08-11 | 2015-08-11 | Low fire -retardant type radiation cross -linking power cable structure of cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600315.XU CN204857265U (en) | 2015-08-11 | 2015-08-11 | Low fire -retardant type radiation cross -linking power cable structure of cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857265U true CN204857265U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520600315.XU Active CN204857265U (en) | 2015-08-11 | 2015-08-11 | Low fire -retardant type radiation cross -linking power cable structure of cigarette |
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| CN (1) | CN204857265U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976926A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Improved-type environmental-protection flame-retardant cable |
| CN107799222A (en) * | 2017-08-29 | 2018-03-13 | 四川韦克电缆有限公司 | A kind of used in nuclear power station flame-resistant insulation fire proof power cable and preparation method thereof |
| CN111370179A (en) * | 2018-12-26 | 2020-07-03 | 漳浦县恒德石墨烯应用科技有限公司 | Graphene composite shielding cable |
-
2015
- 2015-08-11 CN CN201520600315.XU patent/CN204857265U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976926A (en) * | 2016-06-30 | 2016-09-28 | 江苏红峰电缆集团有限公司 | Improved-type environmental-protection flame-retardant cable |
| CN107799222A (en) * | 2017-08-29 | 2018-03-13 | 四川韦克电缆有限公司 | A kind of used in nuclear power station flame-resistant insulation fire proof power cable and preparation method thereof |
| CN111370179A (en) * | 2018-12-26 | 2020-07-03 | 漳浦县恒德石墨烯应用科技有限公司 | Graphene composite shielding cable |
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