CN104299691B - A kind of flexible fire-proof cable - Google Patents
A kind of flexible fire-proof cable Download PDFInfo
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- CN104299691B CN104299691B CN201410542577.5A CN201410542577A CN104299691B CN 104299691 B CN104299691 B CN 104299691B CN 201410542577 A CN201410542577 A CN 201410542577A CN 104299691 B CN104299691 B CN 104299691B
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Abstract
The present invention proposes a kind of flexible fire-proof cable, including cable core, non-collapse packing layer by heat, waterproof layer, outer barrier layer, restrictive coating；The cable core includes conductor from inside to outside, inner barrier layer and insulating barrier；At least one cable core is enclosed with the waterproof layer, packed layer is provided between waterproof layer and cable core, packed layer is wrapped by ceramic silica gel strip and glass fibre and worked out；Outer barrier layer, restrictive coating are enclosed with outside the waterproof layer successively.The present invention is on the premise of high fire-protection rate is met, for example interior outer barrier layer of each important feature, non-collapse packing layer by heat etc. efficiently solve the problems, such as that existing fireproof cable is expensive, complex process needs that special equipment manufacture difficulty is big, protective metal shell is hard for inconvenient and existing flexible cable fire protecting performance of constructing is low using the technique such as traditional wrapped, stranding.
Description
Technical field
The present invention relates to a kind of fireproof cable, more particularly to a kind of flexible fire-proof cable, belong to cable production art.
Background technology
As the density of population increases the emergence with skyscraper, the security against fire facility in indoor place is especially taken seriously.
Electric wire as security against fire basis, people have more strict requirements to its fire protecting performance and convenience for construction etc..
Conventional fireproof cable is mineral insulated cable at present, and structure is copper conductor, mineral insulation, copper sheath.Though such cable
So there is stronger fire resistance property, but it is expensive；Complex process needs special equipment manufacture difficulty big；Protective metal shell is hard
It is especially bigger in the less place laying difficulty of construction area for construction brings inconvenience.
Also some fire-resisting cables contain mica composite tape structure, by the heat-resisting quantity and flame resistance of mica, play
To the resistance to fire action of electric wire.But mica characteristic is highly brittle, band processed and it is wrapped during percent defective it is high, and mica tape can not
That does too thick can be broken when otherwise cannot bend or bend.When high temperature, the macromolecular material of mica attachment can decompose thawing, lose
De-protected mica is highly susceptible to destruction so as to lose protective effect to conductor.Therefore conventional fire-resisting cable is difficult in fire
In the case of work 90 minutes, do not reach corresponding fire resistant requirements.
The content of the invention
The present invention is in view of the shortcomings of the prior art, there is provided one kind processing is simple, and production efficiency is high, and fire protecting performance is excellent
Flexible fire-proof cable.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of flexible fire-proof cable, including cable core, filling
Layer, waterproof layer, outer barrier layer, restrictive coating, the cable core include conductor from inside to outside, inner barrier layer and insulating barrier, described
At least one cable core is enclosed with waterproof layer, packed layer is provided between waterproof layer and cable core, outside the waterproof layer successively
It is enclosed with outer barrier layer, restrictive coating.
Further, the conductor is single or many twisted copper conductors, and the lay ratio of the twisted copper conductors is not less than
35。
Further, the inner barrier layer includes ceramic silica gel fire resistant belt, by one layer of ceramic silica gel and one layer of glass fibers
Dimension is bonded, and thickness is 0.2-0.5mm.
Further, the inner barrier layer bag using it is two-way it is wrapped by the way of wrap up.
Further, the insulating barrier is low-smoke non-halogen flame-retardant cross-linked polyethylene layer.
Further, the packed layer is wrapped with ceramic silica gel strip machinery by glass cord and worked out.
Further, the waterproof layer includes radially inner one layer of glass fiber tape and radially outer one layer of metallization
Polyester belt, every layer of Duplication is more than 30%, its two-layer using it is two-way it is wrapped by the way of, every layer of overlapping apart windings.
Further, the outer barrier layer is ceramic silica gel fire resistant belt, and thickness is 0.6-0.8mm, and adjacent layer uses phase
Opposite direction winds, every layer of overlapping apart windings.
Further, can be according to the addition establishment armor of the applied environment of cable selectivity, the braiding armor
It is many metal knitted silks, the metal knitted silk is steel wire, copper wire or tin plated wire, diameter 0.15-0.2mm, and establishment density is not
Less than 80%.
Further, the sheath is low-smoke non-halogen flame-retardant crosslinked polyethylene.
The beneficial effects of the invention are as follows：Compared with other technologies, the present invention has following features：
First, twisted copper conductors use big lay ratio structure in the present invention.When in case of fire, conductor high-temperature expansion is prevented
Only squeeze bad inner barrier layer.
2nd, inner barrier layer of the present invention, outer barrier layer, packed layer use ceramic silica gel material.This material is -70~210
Soft when spending, flexible, intensity is high, mechanicalness insulating properties is excellent.So that the present invention has the features such as softness, sound insulation, shock resistance,
Construction laying facility；Ceramic silica gel fire guard and gasket for packing production and processing are simple, and the cost of material is low, using traditional around being bundled into
Cable technique can just be added in the middle of cable without using Special Equipment, reduce processing cost；Ceramic silica gel fire guard around
Bag compactness good airproof performance, and it is nonhygroscopic, it is high compared with mica band strength, therefore production efficiency is high, percent defective is low.While fire guard
Thickness can be 0.2-0.8mm, neither influence fire guard intensity to improve fire resistance again；Interior outer barrier layer ceramic silicon
Glue fire guard is sintered into rapidly hard shell in 550 degree~1200 degree of high temperature, so that completely cutting off flame plays guarantor to circuit
Shield is acted on, and ensures that circuit is unimpeded in the case of high temperature of fire.Therefore mica tape can completely be replaced as the anti-of fire-resisting cable
Fire bed.When once cable is used as 0.6/1kv, insulating barrier can be simultaneously done；Inside and outside barrier layer, every layer of use is two-way wrapped
Mode, improve fire resistance property.
3rd, metallized polyester band and glass fiber tape serve the effect of waterproof oxygen barrier, and two-way wrapped mode makes structure
It is even closer.Glass fiber tape improves the intensity of cable simultaneously.
4th, packed layer is wrapped and worked out by glass cord and ceramic silica gel strip machinery, and it is firm to raise its with temperature
Property improve, volume has and slightly increases at room temperature relatively, with heat not collapsing property, makes the overall holding structure at high temperature of cable complete
Property, so as to improve infiltration and mechanical resistant pressure capability.
5th, the important fire proof construction such as inner barrier layer of the present invention, outer barrier layer and waterproof layer, only need to using traditional stranding around
Bag equipment just can be processed, and coordinate the fire proofing material of high intensity so that easy to process, low cost, efficiency high.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the embodiment of the present invention 1；
Fig. 2 is the cross-sectional view of the embodiment of the present invention 2；
Fig. 3 is the structural representation of the embodiment of the present invention 2；
Wherein, 1, conductor；2nd, inner barrier layer；3rd, insulating barrier；4th, packed layer；5th, waterproof layer；6th, outer barrier layer；7th, armour is worked out
Dress layer；8th, restrictive coating.
Specific embodiment
Principle of the invention and feature are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
Embodiment 1
As shown in figure 1, a kind of flexible fire-proof cable, including cable core, packed layer 4, waterproof layer 5, outer obstruct 6 layers, sheath
Layer 8, the cable core includes being enclosed with least in conductor 1 from inside to outside, inner barrier layer 2 and insulating barrier 3, the waterproof layer 5
A piece cable core, is provided with packed layer 4 between waterproof layer 5 and cable core, the waterproof layer 5 is outer be enclosed with successively outer barrier layer 6,
Restrictive coating 8.
The conductor 1 is single or many twisted copper conductors, and the lay ratio of the twisted copper conductors is not less than 35.Stranded copper
Conductor uses big lay ratio structure, can effectively prevent in case of fire, and conductor high-temperature expansion squeezes bad inner barrier layer 2.
The inner barrier layer 2 includes ceramic silica gel fire resistant belt, by one layer of ceramic silica gel and layer of glass bonding
Be 0.2-0.5mm into, thickness, adjacent layer using it is two-way it is wrapped by the way of, every layer of overlapping apart windings.This material -70~
Soft, flexible, intensity is high at 210 degree, mechanicalness insulating properties is excellent.So that cable has the spies such as softness, sound insulation, shock resistance
Point, construction laying facility.
The insulating barrier 3 is low-smoke non-halogen flame-retardant cross-linked polyethylene layer.
The packed layer 4 is wrapped with ceramic silica gel strip machinery by glass cord and worked out.It is soft under this material normal temperature
Soft, shock-absorbing shock resistance, crust thermal insulation is good；In 550 degree of temperature stiff shells formed above, do not fallen off after sintering, weightlessness is less than
28%, the ceramic body of formation does not shrink.
The waterproof layer 5 includes radially inner one layer of glass fiber tape and radially outer one layer of metallized polyester band,
Every layer of Duplication is more than 30%, its two-layer using it is two-way it is wrapped by the way of, every layer of overlapping apart windings.
The outer barrier layer 6 is ceramic silica gel fire resistant belt, and thickness is 0.6-0.8mm, and adjacent layer is using two-way wrapped
Mode, every layer of overlapping apart windings.
The restrictive coating 8 is low-smoke non-halogen flame-retardant crosslinked polyethylene.
Embodiment 2
On the basis of embodiment 1, establishment armor 7, the volume are being provided between outer barrier layer 6 and restrictive coating 8
Armor 7 is knitted for many metal knitted silks, the metal knitted silk is copper wire or tin plated wire, diameter 0.15-0.2mm is worked out close
Degree is not less than 80%.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (4)
1. a kind of flexible fire-proof cable, including cable core, packed layer, waterproof layer, outer barrier layer, restrictive coating, the cable core bag
Conductor from inside to outside, inner barrier layer and insulating barrier are included, at least one cable core, waterproof layer and electricity are enclosed with the waterproof layer
Packed layer is provided between cable core, outer barrier layer, restrictive coating is enclosed with outside the waterproof layer successively, the conductor is single or many
Root twisted copper conductors, the lay ratio of the twisted copper conductors is not less than 35, and the inner barrier layer includes ceramic silica gel fire resistant belt,
It is bonded by one layer of ceramic silica gel and layer of glass, thickness is 0.2-0.5mm, adjacent layer uses two-way wrapped side
Formula, every layer of overlapping apart windings, the insulating barrier is low-smoke non-halogen flame-retardant cross-linked polyethylene layer, and the packed layer is by glass fibers
Dimension rope is wrapped with ceramic silica gel strip machinery works out, and the outer barrier layer is ceramic silica gel fire resistant belt, and thickness is 0.6-
0.8mm, adjacent layer using it is two-way it is wrapped by the way of, every layer of overlapping apart windings.
2. a kind of flexible fire-proof cable according to claim 1, it is characterised in that：The waterproof layer includes radial direction inner
The glass fiber tape and radially outer one layer of metallized polyester band of layer, every layer of Duplication are more than 30%, and its two-layer is using two-way
Wrapped mode, every layer of overlapping apart windings.
3. a kind of flexible fire-proof cable according to claim 1, it is characterised in that：The sheath is handed over for low-smoke non-halogen flame-retardant
Connection polyethylene.
4. a kind of flexible fire-proof cable according to claim 1, it is characterised in that：Set between outer barrier layer and restrictive coating
Be equipped with braiding armor, the braiding armor is that the braiding of many one metal wires is formed, the metal knitted silk be steel wire, copper wire or
Tin plated wire, diameter 0.15-0.2mm, count is not less than 80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410542577.5A CN104299691B (en) | 2014-10-14 | 2014-10-14 | A kind of flexible fire-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410542577.5A CN104299691B (en) | 2014-10-14 | 2014-10-14 | A kind of flexible fire-proof cable |
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| Publication Number | Publication Date |
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| CN104299691A CN104299691A (en) | 2015-01-21 |
| CN104299691B true CN104299691B (en) | 2017-06-30 |
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| CN201410542577.5A Active CN104299691B (en) | 2014-10-14 | 2014-10-14 | A kind of flexible fire-proof cable |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105139925A (en) * | 2015-09-23 | 2015-12-09 | 陈薇 | Fireproof type Internet of Things bus cable and preparation method thereof |
| CN105161163A (en) * | 2015-09-23 | 2015-12-16 | 唐山师范学院 | Fireproof internet of things (IOT) field bus cable and manufacturing method thereof |
| CN105097124A (en) * | 2015-09-23 | 2015-11-25 | 陈薇 | Cable, optical cable and data cable integrated bus and fabrication method thereof |
| CN105097125A (en) * | 2015-09-23 | 2015-11-25 | 陈薇 | Field bus cable for internet of things and preparation method of field bus cable |
| CN105139948A (en) * | 2015-09-23 | 2015-12-09 | 陈薇 | Fireproof integrated bus of cables, optical cables and data cables and preparation method thereof |
| CN105161192A (en) * | 2015-09-28 | 2015-12-16 | 安徽华通电缆集团有限公司 | Waterproof high-performance composite cable and manufacturing method thereof |
| CN105185454A (en) * | 2015-09-28 | 2015-12-23 | 张翔 | Fireproof cable for aerospace |
| CN105185437A (en) * | 2015-09-28 | 2015-12-23 | 张翔 | Nano-material composite flame-retardant cable and preparation method thereof |
| CN105161213A (en) * | 2015-09-28 | 2015-12-16 | 安徽复兴电缆集团有限公司 | High-performance waterproof and fireproof composite power cable and manufacturing method thereof |
| CN105161203A (en) * | 2015-09-28 | 2015-12-16 | 张翔 | High temperature resistance flame resistance cable and manufacture method |
| CN105161202A (en) * | 2015-09-28 | 2015-12-16 | 张翔 | Waterproof high temperature resistance flame retardation cable and manufacturing method thereof |
| CN105551603A (en) * | 2016-01-18 | 2016-05-04 | 明达线缆集团有限公司 | Reinforcement isolated type mineral-insulated flexible fireproof cable |
| CN107780041A (en) * | 2017-10-18 | 2018-03-09 | 芜湖缆胜电缆新材料有限公司 | A kind of netted gasket for packing of flame-retardant polypropelene and preparation method thereof |
| CN108417300A (en) * | 2018-03-13 | 2018-08-17 | 安徽航天电缆集团有限公司 | A kind of high intensity polymer insulation LSOH anti-flaming explosion-proof type cable and manufacturing process |
| CN112484881A (en) * | 2020-10-28 | 2021-03-12 | 国网浙江省电力有限公司绍兴供电公司 | Intelligent interconnected flexible fireproof and explosion-proof monitoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10051962A1 (en) * | 2000-10-20 | 2002-05-02 | Alcatel Sa | Insulated electrical conductor with functional integrity in the event of a fire |
| ITMI20121178A1 (en) * | 2012-07-05 | 2014-01-06 | Prysmian Spa | ELECTRIC CABLE RESISTANT TO FIRE, WATER AND MECHANICAL STRESS |
| CN103236309B (en) * | 2013-04-19 | 2014-09-17 | 深圳市安品有机硅材料有限公司 | Preparation method of ceramifiable silicon rubber composite belt for fire-resistant cable |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Flexible fireproof cable Effective date of registration: 20211229 Granted publication date: 20170630 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: JINAN SHENGTONG POWER CABLE Co.,Ltd. Registration number: Y2021980016690 |
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Date of cancellation: 20221028 Granted publication date: 20170630 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: JINAN SHENGTONG POWER CABLE Co.,Ltd. Registration number: Y2021980016690 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A flexible fireproof cable Effective date of registration: 20221104 Granted publication date: 20170630 Pledgee: Ji'nan rural commercial bank Limited by Share Ltd. high tech branch Pledgor: JINAN SHENGTONG POWER CABLE Co.,Ltd. Registration number: Y2022980020670 |
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