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CN208507236U - A kind of long-life for building double insulation high fire-retardance fire resisting damp-proof cables - Google Patents

A kind of long-life for building double insulation high fire-retardance fire resisting damp-proof cables Download PDF

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Publication number
CN208507236U
CN208507236U CN201820350576.4U CN201820350576U CN208507236U CN 208507236 U CN208507236 U CN 208507236U CN 201820350576 U CN201820350576 U CN 201820350576U CN 208507236 U CN208507236 U CN 208507236U
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China
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layer
fire
conductor
life
flame
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Active
Application number
CN201820350576.4U
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Chinese (zh)
Inventor
胡士来
李世欣
李金连
路容
陈明华
田忠
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Yangzhou Shuguang Cable Co Ltd
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Yangzhou Shuguang Cable Co Ltd
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Priority to CN201820350576.4U priority Critical patent/CN208507236U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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Abstract

The utility model provides a kind of long-life for building double insulation high fire-retardance fire resisting damp-proof cables, which is twisted by 3 insulated wire cores;The gap of cable core is equipped with waterproofing rope filled layer;The compound waterstop wrapping layer of water-swellable, the wrapped flame-retardant layer of halogen-free flameproof fiber band, LSOH anti-flaming cross-linking radiation external sheath layer are successively arranged outside cable core from inside to outside;The insulated wire cores are made of conductor, conductor flame retardant coating, inner insulating layer and external insulation layer.The utility model has environmentally friendly, fire-retardant, fire resisting, moisture-proof and ageing-resistant performance, superior electrical property, especially with the service life up to 70 years or more.

Description

A kind of long-life for building double insulation high fire-retardance fire resisting damp-proof cables
Technical field
The utility model relates to power cable fields, and in particular to a kind of high fire-retardance fire resisting damp-proof cable.
Background technique
With city intelligent, the quickening of the high stratification developing steps of building, construction timber is synchronous with the Building Design service life It is the direction of future development.Dark electrical wiring is the important component of construction timber, to prevent midway thread-changing from making to building structure At damage, dark electrical wiring must be kept and 70 years House Property same service life.Meanwhile with China " green building assessment standard " and Matching system constantly improve, and dark electrical wiring should also keep up with green paces.Flame resistant cable is in building using very at present Generally, mostly single layer dielectrics, using polyvinyl chloride or crosslinked polyetylene insulated, electric performance stablity is poor, poor anti jamming capability, It is inflammable, it is easy to aging, be afraid of humidity, domestic House Property is 70 at present especially with the service life short (general only 20 years or so) Year, as soon as in order to which safety will replace time cable at least in 70 years, this needs to pay very big expense.Therefore, exploitation uses Service life is up to 70 years and with the moisture-proof cable of LSOH anti-flaming fire resisting, it has also become market in urgent need.
Utility model content
The purpose of this utility model is exactly to overcome above-mentioned the deficiencies in the prior art, provides a kind of long-life for building double insulation High fire-retardance fire resisting damp-proof cable, the cable have environmentally friendly, fire-retardant, fire resisting, moisture-proof and ageing-resistant performance, and superior electrical property is special It is not service life up to 70 years or more.
A kind of long-life for building double insulation high fire-retardance fire resisting damp-proof cables, including cable core, the cable core is by 3 insulated wires Core is twisted;The gap of cable core is equipped with waterproofing rope filled layer;It is compound that it is successively arranged water-swellable from inside to outside outside cable core Waterstop wrapping layer, the wrapped flame-retardant layer of halogen-free flameproof fiber band, LSOH anti-flaming cross-linking radiation external sheath layer;The insulated wire Core is made of conductor, conductor flame retardant coating, inner insulating layer and external insulation layer.
The conductor meets the 5th kind of plating metal of GB/T3956-2008 using selection or the annealed copper of metal cladding is not led Body.
The conductor flame retardant coating is that mica tape bilayer is wrapped, and internal layer mica tape selects fire resisting organosilicon single side glass phlogopite Band, outer layer mica tape select organosilicon double-sided glass gold mica tape.
The inner insulating layer uses Radiation Crosslinked Polyethylene material, and external insulation layer is poly- using low-smoke non-halogen flame-retardant cross-linking radiation Olefin material, inner insulating layer and the disposable co-extrusion of external insulation layer are constituted.
The utility model has the beneficial effects that:
1, the utility model has good flexibility, high mechanical strength, and not wrinkled folding when wrapped has preferable work Skill operability and excellent heat resistance and flame resistance energy.When meeting open fire burning, harmful vapors are not distributed substantially, Also it is not carbonized.
2, guarantee that insulation has good insulation electrical performance, and greatly improve flame-resistant insulation fire resistance, realize electricity Performance, flame retardant property, the balance of mechanical performance and processing performance.
3, effectively prevent water by the gap between insulation and flame-retardant layer along cable vertical migration.
4, the utility model using oxygen index (OI) be greater than 50, it is wrapped with a thickness of the halogen-free flameproof fiber band of 0.25mm, it is not only With high flame-retardant property and there is protection against rodents effect.Wrapped using bilayer, every layer of overlap rate is not less than 60%, so that the every place of cable Halogen glass fiber tape is not less than 4 layers, it is ensured that cable flame retardance reaches the requirement of A class.
5, sheath physical mechanical property is significantly improved, the service life of cable is increased.
6, excellent flame-retardant humidity resistance had not only been maintained, but also there is softness and compact-sized performance, has adapted to build Build the cable installation in pipe requirement with cable.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the structure of the utility model;
In figure, in figure: 1- insulated wire cores;1-1 conductor;1-2 conductor flame retardant coating;1-3 inner insulating layer;1-4 external insulation layer;2- Waterproofing rope filled layer;The compound waterstop wrapping layer of 3-;The wrapped flame-retardant layer of 4-;5- external sheath layer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of double insulation high fire-retardance fire resisting damp-proof cables of long-life for building, including cable core, the cable core It is twisted by 3 insulated wire cores 1;The insulated wire cores by conductor 1-1, conductor flame retardant coating 1-2, inner insulating layer 1-3 and it is outer absolutely Edge layer 1-4 is constituted.Conductor 1-1, which is used, selects the 5th kind of plating metal for meeting GB/T3956-2008 or the not annealed copper of metal cladding Conductor.Conductor flame retardant coating 1-2 is that mica tape bilayer is wrapped, and internal layer mica tape selects fire resisting organosilicon single side glass gold mica tape, Outer layer mica tape selects organosilicon double-sided glass gold mica tape, has good flexibility, and high mechanical strength has been not easy when wrapped Fold has preferable process operability and excellent heat resistance and flame resistance energy.Do not have substantially when meeting open fire burning There is distributing for harmful vapors, is not also carbonized.Inner insulating layer 1-3 material is Radiation Crosslinked Polyethylene, which has high dielectric property Energy;External insulation layer 1-4 material is low-smoke non-halogen flame-retardant cross-linking radiation polyolefin, has excellent flame retardant property, by both materials Expect disposable co-extrusion, not only guaranteed that there is good insulation electrical performance, but also greatly improve flame-resistant insulation fire resistance, realizes electricity Performance, flame retardant property, the balance of mechanical performance and processing performance.
The gap of cable core is equipped with waterproofing rope filled layer 2, and waterproofing rope filled layer 2 is double using the compound waterstop of water-swellable Layer wrapping layer, every layer of overlap rate are not less than 30%, guarantee that the every place's waterstop of cable is not less than 2 layers, can effectively prevent water from passing through exhausted Gap between edge and flame-retardant layer is along cable vertical migration.
Compound waterstop wrapping layer 3, wrapped flame-retardant layer 4, external sheath layer 5 are successively arranged outside cable core from inside to outside.Compound resistance Water band wrapping layer 3 is using the compound waterstop of water-swellable around packaging material.Wrapped flame-retardant layer 4 is greater than 50, thickness using oxygen index (OI) Wrapped for the halogen-free flameproof fiber band of 0.25mm, it not only has high flame-retardant property but also has protection against rodents effect.Using bilayer around Packet, every layer of overlap rate is not less than 60%, so that the every place's Halogen glass fiber tape of cable is not less than 4 layers, it is ensured that cable flame retardance Reach the requirement of A class.External sheath layer 5 selects LSOH anti-flaming cross-linking radiation material, which has LSOH anti-flaming environmental protection Green Features, and crosslinked thermosetting material significantly improves sheath physical mechanical property compared with thermoplastic material, increases The service life of cable.

Claims (3)

1. a kind of double insulation high fire-retardance fire resisting damp-proof cables of long-life for building, which is characterized in that
Including cable core, which is twisted by 3 insulated wire cores;The gap of cable core is equipped with waterproofing rope filled layer;Outside cable core It is successively arranged the compound waterstop wrapping layer of water-swellable, the wrapped flame-retardant layer of halogen-free flameproof fiber band, low smoke, zero halogen from inside to outside Fire-retardant cross-linking radiation external sheath layer;The insulated wire cores are made of conductor, conductor flame retardant coating, inner insulating layer and external insulation layer;Institute Stating conductor flame retardant coating is that mica tape bilayer is wrapped, and internal layer mica tape selects fire resisting organosilicon single side glass gold mica tape, outer stratus Master tape selects organosilicon double-sided glass gold mica tape.
2. a kind of double insulation high fire-retardance fire resisting damp-proof cables of long-life for building according to claim 1, feature exist In the conductor, which uses, selects the 5th kind of plating metal for meeting GB/T3956-2008 or not the annealing copper conductor of metal cladding.
3. a kind of double insulation high fire-retardance fire resisting damp-proof cables of long-life for building according to claim 1, feature exist In the inner insulating layer uses Radiation Crosslinked Polyethylene material, and external insulation layer uses low-smoke non-halogen flame-retardant cross-linking radiation polyolefin Material, inner insulating layer and the disposable co-extrusion of external insulation layer are constituted.
CN201820350576.4U 2018-03-14 2018-03-14 A kind of long-life for building double insulation high fire-retardance fire resisting damp-proof cables Active CN208507236U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820350576.4U CN208507236U (en) 2018-03-14 2018-03-14 A kind of long-life for building double insulation high fire-retardance fire resisting damp-proof cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820350576.4U CN208507236U (en) 2018-03-14 2018-03-14 A kind of long-life for building double insulation high fire-retardance fire resisting damp-proof cables

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CN208507236U true CN208507236U (en) 2019-02-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109817370A (en) * 2019-04-08 2019-05-28 浙江元通线缆制造有限公司 Soft type resist bending flame retardant cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109817370A (en) * 2019-04-08 2019-05-28 浙江元通线缆制造有限公司 Soft type resist bending flame retardant cable

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