CN206363777U - A kind of environment-friendly type fire resistant flexible midium voltage cable - Google Patents
A kind of environment-friendly type fire resistant flexible midium voltage cable Download PDFInfo
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- CN206363777U CN206363777U CN201620861599.2U CN201620861599U CN206363777U CN 206363777 U CN206363777 U CN 206363777U CN 201620861599 U CN201620861599 U CN 201620861599U CN 206363777 U CN206363777 U CN 206363777U
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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 belongs to power cable technical field, more particularly to a kind of environment-friendly type fire resistant flexible midium voltage cable.Including cable core; wherein cable core includes conductor wire core; the conductor wire core is lay configuration; flame retardant coating is surrounded with outside conductor wire core; have outside flame retardant coating by non-metal conductor screen layer, insulating barrier, the disposable extrusion molding of non-metallic insulation screen layer cross-linking composition layer; cross-linking composition layer is outer to be surrounded with metal screen layer; thermal insulation layer is extruded with outside metal screen layer; in core institute into being extruded with mineral matter fireprotection layer outside cable core; fire resistant belt is surrounded with outside fireprotection layer; having outside glass fibre belt outside the metallic sheath of lock armo, metallic sheath has environmentally friendly sheath.The utility model cable is more soft, reduces construction and lays difficulty, and reduces production, maintenance cost.
Description
Technical field
The utility model belongs to power cable technical field, more particularly to a kind of environment-friendly type fire resistant flexible midium voltage cable.
Background technology
The normal operation of fire-fighting emergent equipment is for safety evacuation, control fire spreading, reduction fire when fire occurs
Disaster loss, which is lost, highly important effect.Therefore, the electrical power distribution circuit of fire-fighting emergent equipment, distribution system should meet reliability,
Fire resistance, security, validity, scientific requirement, will not be interrupted with ensureing during fire that fire-fighting equipment is powered, ensure person peace
Entirely, it is ensured that duration of power supply, it is ensured that power supply quality simultaneously makes every effort to system wiring simply, and reduced investment, operating cost are low.
Made however, traditional rigidity fireproof cable is outer layer using seamless copper pipe sheath, middle filling magnesia crystal powder
Insulating materials, conductor is the cable of sub-thread copper rod composition, and this cable investment of production equipment cost is high, and product is unable to long length life
Production, valuable product, joint moisture-sensitive, difficulty of construction is big and construction workload is larger so as to cause for product bendability difference；
According to non metallic sheath, then fire protecting performance can not guarantee, and produce a large amount of smog after burning, unsuitable safety evacuation.
To solve the inherent shortcoming of traditional fireproof cable, production flexibility fireproof cable is very necessary, with the continuous popularization of the product, it
Premium properties increasingly approved by numerous clients, applied in basic industries and civilian construction.
And so-called " flexible fire-proof cable " is actually the derivation of a kind of " fire-resisting cable " now, that is to say, that led stranded
External winding of band-type thing（Predominantly mica tape）Indulging bag again afterwards, one layer solderable, embossing copper strips is used as cable cover(ing).Should " anti-thermoelectricity
There is following defect when specifically used in cable ", its construction of cable：1st, insulating barrier uses ribbon, in occurring concrete on fire, cable
Ribbon will become powdered, and the powder is easy to come off to cause cable core to touch phase with core, core and copper sheath；2nd, protect
Set is using the vertical bag welding embossing of copper strips, and copper strips is after occurring mechanically deform（Embossing）It will be hardened, so as to cause the cable can not
Recover the flexibility of copper strips by annealing, this point is disagreed with " flexibility ".Therefore, based on showing that fireproof cable develops
Shape, is badly in need of the flexible fire-proof cable in a kind of complete meaning, is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
The technical problems to be solved in the utility model is exactly to overcome above-mentioned the deficiencies in the prior art, and provides a kind of cable more
Plus it is soft, reduce construction and lay difficulty, and reduce the environment-friendly type fire resistant flexible midium voltage cable of production, maintenance cost.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of environment-friendly type fire resistant flexible midium voltage cable, including cable core are designed, wherein cable core includes conductor wire core, the conduction
Core is to be surrounded with outside flame retardant coating, flame retardant coating to have by non-metal conductor screen layer, insulating barrier, non-outside lay configuration, conductor wire core
The cross-linking composition layer of the disposable extrusion molding of metal-insulator screen layer, cross-linking composition layer is outer to be surrounded with metal screen layer, metal screen
Cover and thermal insulation layer is extruded with outside layer, in core institute into mineral matter fireprotection layer is extruded with outside cable core, fire resisting is surrounded with outside fireprotection layer
Having outside band, glass fibre belt outside the metallic sheath of lock armo, metallic sheath has environmentally friendly sheath.
Preferably, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the cable core is formed by multiple conductor wire cores are stranded,
The cable core gap is filled with high fire-retardance asbestos cord.
Preferably, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the conductor wire core presses stranded for strand copper wire
Form.
Preferably, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the flame retardant coating is synthetic mica tape.
Preferably, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the metal screen layer is copper strips or copper alloy belt.
Preferably, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the thermal insulation layer is the ceramic high polymer extruded,
The high polymer is silicon rubber or polyolefin.
Preferably, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the fire resistant belt is glass fibre belt.
Preferably, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the mineral matter fireprotection layer is ceramic high polymer
Layer, the biopolymer layer is silastic-layer either polyolefin layer.
Preferably, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the metallic sheath is stainless steel band or aluminum alloy strip
Lock armo is formed.
Preferably, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the environmentally friendly sheath is irradiation low smoke and zero halogen polyene
Hydrocarbon sheath.
The beneficial effect of technical solutions of the utility model is：
1st, the thermal insulation layer that flame retardant coating, the ceramic high polymer being made up of in the utility model double-deck synthetic mica tape are formed is total to
With the insulating barrier for constituting cable；The ceramic high polymer extruded not only can effectively solve lacking for former fireproof cable insulation moisture-sensitive
Fall into, and ceramic high polymer heated " crust " effect can effectively solve the defect that mica tape is heated into shed powder.
2nd, fire resistant belt and ceramic high polymer composition " sandwich " fireprotection layer in the utility model, it may have heated " crust " is made
With can effectively protect cable body.Wrapped glass fibre belt outside the fireprotection layer extruded after stranding, plays the work of fixed fireprotection layer
With.Conductor wire core using stranded copper wire press it is stranded form, to reduce the outside diameter of cable, save material, conveniently lay.
3rd, design extrudes mineral composites as fireprotection layer between chain armor and sheath in the utility model, its
Operation principle is that the same fireprotection layer of flame combustion fireprotection layer shape imaging ceramic has blocked flame and burning to when occurring fire
The transmission of temperature, realizes fireproofing of cable function, protects cable insulation, so as to ensure that cable can continue energization.Its is special
The function such as armoured process increase cable resistance to compression, protection against rodents, occur that during fire good buffer action can be played.
4th, original drawing copper tubes and the vertical bag welding of copper strips are replaced by metal tape lock armo in the utility model, makes cable
Flexibility is greatly improved, while the production technology is not by length limitation, transition joint is less.This cable can the continuous metaplasia of long length
Production, its bending radius has excellent bending property up to 7D (D is the external diameter of cable).
5th, oversheath uses exposed material in the utility model, can greatly improve heat resistance, the mechanicalness of cable
Energy and water resistance.Outermost layer uses the high printing opacity low smoke, zero halogen material guards of corrosion-resistant, antiultraviolet, and light transmittance reaches after burning
More than 90%, facilitate evacuating personnel during fire.
6th, the utility model eliminates protective metal shell, to extrude special mineral composite material as thermal insulation layer and fire prevention
Layer, reaches the properties of fireproof cable, is " flexibility " fire prevention midium voltage cable truly.
7th, the utility model is more soft by cable, reduces construction and lays difficulty；Metal sheath is replaced with nonmetallic sheath,
Make cable more soft and reduce production, maintenance cost.
8th, all material uses environment-friendly materials in the utility model, does not produce pollution to environment.
Brief description of the drawings
Embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is one of structural representation of the utility model environment-friendly type fire resistant flexible midium voltage cable；
Fig. 2 is one of structural representation of the utility model environment-friendly type fire resistant flexible midium voltage cable；
Sequence number in figure：1st, conductor wire core, 2, flame retardant coating, 3, non-metal conductor screen layer, 4, insulating barrier, 5, non-metallic insulation
Screen layer, 6, metal screen layer, 7, thermal insulation layer, 8, mineral matter fireprotection layer, 9, fire resistant belt, 10, metallic sheath, 11, environmentally friendly sheath,
12nd, high fire-retardance asbestos cord.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model embodiment is carried out to have understood
Whole description, it is clear that described embodiment is only the schematical part embodiment of the utility model, and it is not used to limit
Fixed scope of the present utility model, any those skilled in the art institute on the premise of the utility model design and principle is not departed from
The equivalent variations made and modification, all should belong to the scope of the utility model protection.
Referring to Fig. 1, in figure, the utility model environment-friendly type fire resistant flexible midium voltage cable, including cable core, wherein cable core includes leading
Wire core 1, conductor wire core is single.The conductor wire core is to be surrounded with flame retardant coating 2, flame retardant coating outside lay configuration, conductor wire core
It is outer have by non-metal conductor screen layer 3, insulating barrier 4, the disposable extrusion molding of non-metallic insulation screen layer 5 cross-linking composition layer,
Outer is surrounded with outside metal screen layer 6, metal screen layer of cross-linking composition layer is extruded with thermal insulation layer 7, in core institute into squeezing outside cable core
Mineral matter fireprotection layer 8 is surrounded by, the metallic sheath 10 outside fire resistant belt 9, glass fibre belt with lock armo is surrounded with outside fireprotection layer,
There is environmentally friendly sheath 11 outside metallic sheath.
In the specific embodiment of the utility model one, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, referring to Fig. 2, figure
In, the cable core is formed by three conductor wire cores are stranded, and the cable core gap is filled with high fire-retardance asbestos cord 12.
In the specific embodiment of the utility model one, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the conductor wire
Core is that strand copper wire presses stranded form.To reduce the outside diameter of cable, material is saved, is conveniently laid.
In the specific embodiment of the utility model one, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the flame retardant coating
For synthetic mica tape.
In the specific embodiment of the utility model one, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the metal screen
Layer is covered for copper strips or copper alloy belt.
In the specific embodiment of the utility model one, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the thermal insulation layer
For the ceramic high polymer extruded, the high polymer is silicon rubber or polyolefin.
In the specific embodiment of the utility model one, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the fire resistant belt
For glass fibre belt.
In the specific embodiment of the utility model one, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the mineral matter
Fireprotection layer is ceramic biopolymer layer, and the biopolymer layer is silastic-layer either polyolefin layer.Ceramic high polymer be with
High polymer is base, adds inorganic refractory fire retardant, ceramic additive and various auxiliary agents and is composited, can under thermal-flame
Thermal insulation ceramicses shape object is changed into rapidly, cable body is effectively protected.
In the specific embodiment of the utility model one, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the metallic sheath
For stainless steel band or aluminum alloy strip using " S " type lock armo, all linked with one another form.
In the specific embodiment of the utility model one, in above-mentioned environment-friendly type fire resistant flexible midium voltage cable, the ring protection
Cover for irradiation low-smoke halogen-free polyolefin sheath.Need to use high-power electron beam or ultraviolet light irradiation after extruding machine extrusion, make polymer
Tridimensional network is changed into by linear structure.Cable jacket 11 is using low with corrosion-resistant, antiultraviolet high printing opacity Halogen
Light transmittance is up to more than 90% after cigarette flame-retardant sheath material, burning.
It is specific when making, can be produced by three-layer co-extruded dry cross-linking unit by non-metal conductor screen layer 3, insulating barrier 4,
Wrapped copper strips metal screen layer 6, copper strips metallic shield outside the disposably extrusion crosslinking of non-metallic insulation screen layer 5, insulation screen
Porcelain mineral composites are extruded as thermal insulation layer 7 outside, the porcelain mineral composites thermal conductivity coefficient is low, occur in fire
When prevent the incoming conductor wire core of outside heat, it is ensured that the current-carrying capacity of conductor wire core is unlikely to decline to a great extent.
Excellent according to the novel flexible fireproof cable fire protecting performance that the invention scheme is produced, fire resistance rating not only passes through
I A levels are provided in the 950 DEG C of 90min experiments of national standard GB/T12666-2008 A classes, Ministry of Public Security GA306-2007 950 DEG C -1000
DEG C experiment, also passes through in Britain BS6387-1994 and provides A 650 DEG C of level, 750 DEG C of 3h B levels, 950 DEG C of 3h C levels 3h test.Together
When be also resistant to water spray and mechanical impact in burning, the Novel fireproof cable can continuous long length production, either single also
It is that multicore cable its length can meet power supply length needs, limiting length is unrestricted, and the cable does not need special-purpose terminal tieing,
Lay conveniently, filler is porcelain mineral compound, is difficult the moisture absorption.The product made has been used for square, body the region between the heart and the diaphragm shop, skyscraper etc.
Place, achieves significant Social benefit and economic benefit.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and it
Identical similar part is cross-referenced between the difference of its embodiment, each embodiment.
To the described above of disclosed embodiment, those skilled in the art are enable to realize or use the utility model.It is right
The many places modification of these embodiments is apparent to those skilled in the art, and generic principles defined herein can
On the premise of the spirit or scope of utility model are not departed from, to realize in other embodiments.Therefore, the utility model will not
These embodiments illustrated herein are limited to, and are to fit to the most wide model consistent with features of novelty with principles disclosed herein
Enclose.
Claims (10)
1. a kind of environment-friendly type fire resistant flexible midium voltage cable, including cable core, wherein cable core include conductor wire core, it is characterized in that：It is described
Conductor wire core is to be surrounded with outside flame retardant coating, flame retardant coating to have by non-metal conductor screen layer, insulation outside lay configuration, conductor wire core
Layer, the cross-linking composition layer of the disposable extrusion molding of non-metallic insulation screen layer, cross-linking composition layer is outer to be surrounded with metal screen layer, gold
Thermal insulation layer is extruded with outside category screen layer, in core institute into mineral matter fireprotection layer is extruded with outside cable core, is surrounded with outside fireprotection layer
Having outside fire resistant belt, glass fibre belt outside the metallic sheath of lock armo, metallic sheath has environmentally friendly sheath.
2. environment-friendly type fire resistant flexible midium voltage cable according to claim 1, it is characterized in that：The cable core is by multiple conductor wires
Core is stranded to be formed, and the cable core gap is filled with high fire-retardance asbestos cord.
3. environment-friendly type fire resistant flexible midium voltage cable according to claim 1 or 2, it is characterized in that：The conductor wire core is many
Stock copper cash presses stranded form.
4. environment-friendly type fire resistant flexible midium voltage cable according to claim 1 or 2, it is characterized in that：The flame retardant coating is synthesis
Mica tape.
5. environment-friendly type fire resistant flexible midium voltage cable according to claim 1 or 2, it is characterized in that：The metal screen layer is
Copper strips or copper alloy belt.
6. environment-friendly type fire resistant flexible midium voltage cable according to claim 1 or 2, it is characterized in that：The thermal insulation layer is to extrude
Ceramic high polymer, the high polymer is silicon rubber or polyolefin.
7. environment-friendly type fire resistant flexible midium voltage cable according to claim 1 or 2, it is characterized in that：The fire resistant belt is glass
Band.
8. environment-friendly type fire resistant flexible midium voltage cable according to claim 1 or 2, it is characterized in that：The mineral matter fireprotection layer
For ceramic biopolymer layer, the biopolymer layer is silastic-layer either polyolefin layer.
9. environment-friendly type fire resistant flexible midium voltage cable according to claim 1 or 2, it is characterized in that：The metallic sheath is stainless
Steel band or aluminum alloy strip lock armo are formed.
10. environment-friendly type fire resistant flexible midium voltage cable according to claim 1 or 2, it is characterized in that：The environmentally friendly sheath is spoke
According to low-smoke halogen-free polyolefin sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620861599.2U CN206363777U (en) | 2016-08-10 | 2016-08-10 | A kind of environment-friendly type fire resistant flexible midium voltage cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620861599.2U CN206363777U (en) | 2016-08-10 | 2016-08-10 | A kind of environment-friendly type fire resistant flexible midium voltage cable |
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| CN206363777U true CN206363777U (en) | 2017-07-28 |
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| CN201620861599.2U Active CN206363777U (en) | 2016-08-10 | 2016-08-10 | A kind of environment-friendly type fire resistant flexible midium voltage cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957072A (en) * | 2019-07-24 | 2020-04-03 | 安徽华菱新材料科技有限公司 | Special high-strength double-flame-retardant control cable for high-speed motor train unit |
| CN111681811A (en) * | 2020-05-15 | 2020-09-18 | 河南胜华电缆集团有限公司 | Flexible fireproof cable and preparation method of heat insulation layer thereof |
-
2016
- 2016-08-10 CN CN201620861599.2U patent/CN206363777U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957072A (en) * | 2019-07-24 | 2020-04-03 | 安徽华菱新材料科技有限公司 | Special high-strength double-flame-retardant control cable for high-speed motor train unit |
| CN111681811A (en) * | 2020-05-15 | 2020-09-18 | 河南胜华电缆集团有限公司 | Flexible fireproof cable and preparation method of heat insulation layer thereof |
| CN111681811B (en) * | 2020-05-15 | 2022-05-03 | 河南胜华电缆集团有限公司 | Flexible fireproof cable and preparation method of heat insulation layer thereof |
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