CN208400545U - A kind of novel weathering resistant flexible mineral insulation fireproof cable - Google Patents
A kind of novel weathering resistant flexible mineral insulation fireproof cable Download PDFInfo
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- CN208400545U CN208400545U CN201821201928.6U CN201821201928U CN208400545U CN 208400545 U CN208400545 U CN 208400545U CN 201821201928 U CN201821201928 U CN 201821201928U CN 208400545 U CN208400545 U CN 208400545U
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Abstract
The utility model discloses a kind of novel weathering resistant flexible mineral insulation fireproof cable, which successively includes cable core, filled layer, belting layer and external sheath layer from inside to outside.Cable core is formed by least three conductor wire cores and at least one neutral core stranding.Conductor wire core successively includes conductive core, the first insulation composite and the first interlocked metallic layer from inside to outside.Filled layer extrudes between the gap and cable core and belting layer of cable core.Belting layer bilayer is around being wrapped on filled layer.External sheath layer is made of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, extrudes on belting layer.The cable has good flexible and weatherability, use separation existing market fireproof cable product entirety welded tube metallic sheath for the independent interlocked metallic set of each cable core, both the anti-collision performance of metallic sheath mineral fireproof cable had been remained, the bending radius of entire cable is substantially reduced again, flexibility is increased, can be used in the fire prevention place for more needing bending radius small.
Description
Technical field
The utility model relates to the technical field of wire and cable, especially a kind of novel weathering resistant flexible mineral insulation fire prevention
Cable.
Background technique
In recent years, China's rapid economic development, people gradually reinforce and pay attention to for awareness of safety, and cable is as modern
The main connection medium of electrical equipment, residence complex, commercial mansion, industrial area, large stadium, public place of entertainment, mine,
The important places such as iron, the connection of the mating electrical installation of modern new energy and all kinds of rank dangerous areas, cable is all must not
One of the equipment that can lack.When unexpected fire occurs, cable, which is easy to be burned, to be led to not give fire-fighting equipment normal power supply, even
One of oxidizer may be become, for safety, the cable of place installation has required fire protecting performance, protects within a certain period of time
Unobstructed, the loss of injures and deaths and lives and properties that tries to gain time precious to one to the maximum extent, reduce personnel of barrier electric power and communication, from
And the demand of fireproof cable is increasingly increased.
General fireproof cable is all to fill magnesium oxide material by metal copper pipe to be formed at present, is done using magnesia
Packing material needs pickling, the addition multiple tracks technique such as magnesia and desulfurization to be coated, whole welded tube is carried out after stranding.
Utility model content
Cable is formed by metal copper pipe filling magnesia in the prior art, and the processing of magnesia is cumbersome, utilizes space
It is narrow, cause its price high for many years, so that cable product cost increases.And metal copper pipe is as cable entirety
Protective metal shell, structure is hard, bending radius is big, it is not soft to be difficult to be bent, mounting and installation constructional difficulties, can not be flexibly applied to
Different places causes installation cost to improve.Cable autologous density weight made from such a way that copper pipe fills magnesia
It measures larger, it has not been convenient to install, increase the difficulty of installation.As it can be seen that existing cable all exists very from processing and fabricating to mounting and installation
Big difficulty, it is necessary to improve.
The purpose of this utility model is above-mentioned technical problem to be solved, and it is anti-to provide a kind of novel weathering resistant flexible mineral insulation
Thermoelectricity cable, the cable use separation existing market fireproof cable product entirety welded tube metallic sheath for the independent interlocking of each cable core gold
Belong to set, not only remained the anti-collision performance of metallic sheath mineral fireproof cable, but also substantially reduce the bending radius of entire cable, increases
Flexibility is added, can be used in the fire prevention place for more needing bending radius small.Structure is simple, bending radius is small, production work
Skill is simple, it is at low cost, easy for installation, different places can be flexibly applied to, also there is flexibility, fire line, insulating properties, weather-proof
Property, resistance to ag(e)ing and anti-collision performance.
The utility model solves technical solution used by the technical problem: a kind of novel weathering resistant flexible mineral insulation
Fireproof cable, the cable successively include cable core, filled layer, belting layer and external sheath layer from inside to outside；
The cable core is formed by least three conductor wire cores and at least one neutral core stranding；
The conductor wire core successively includes conductive core, the first insulation composite and the first interlocked metallic from inside to outside
Layer；First insulation composite is around being wrapped in outside the conductive core；First insulation composite include the first heat-resistant layer and
First insulating layer；First insulating layer is around being wrapped in outside first heat-resistant layer；The first interlocked metallic layer is by annealed copper
Interlocking is made, and is coated on outside first insulation composite；
The neutrality core successively includes neutral core, the second insulation composite and the second interlocked metallic from inside to outside
Layer；Second insulation composite is around being wrapped in outside the neutral core；Second insulation composite include the second heat-resistant layer and
Second insulating layer；The second insulating layer is around being wrapped in outside second heat-resistant layer；The second interlocked metallic layer is by annealed copper
Interlocking is made, and is coated on outside second insulation composite；
The filled layer extrudes between the gap and the cable core and the belting layer of the cable core；
The belting layer bilayer is around being wrapped on the filled layer；
The external sheath layer is made of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, extrudes in the belting layer
On.
Compared with prior art, the utility model has following good effect:
1, the utility model structure is simple, and interlocked metallic layer is material by annealed copper, is made up of metal interlocking, makes it
Around insulation composite is wrapped in, pull resistance, flexible and the flexibility of metal can increase using interlocking structure.Interlocked metallic layer is set
The outer layer in each cable core is set, the effect of multiple protective core can not only have been better played together with insulation composite, also
It can keep the rounding property of cable core.Use separation existing market fireproof cable product entirety welded tube metallic sheath for the list of each cable core
Only interlocked metallic set, had not only remained the anti-collision performance of metallic sheath mineral fireproof cable, but also substantially reduce the curved of entire cable
Bilge radius increases flexibility, can be used in the fire prevention place for more needing bending radius small.It is anti-to compensate for existing metallic sheath
Thermoelectricity cable cannot be used to be used in the small regional scope of bending radius, can neatly mounting and installation be reduced to different places
Installation cost；
2, filled layer is filled between the gap and cable core and belting layer of cable core, under the collective effect in conjunction with belting layer,
It can ensure that the close rounding of Integral cable.Belting layer only need it is wrapped to can be made on filled layer using existing around-packing technology,
Production method is simple, eliminates and does packing material using magnesia in the prior art, needs pickling, addition magnesia and desulfurization etc.
Cladding could be completed after the technique of multiple tracks complexity.Cladding process is simplified, to further decrease the cost of manufacture of cable；
3, external sheath layer is made using irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, has fire resistance, weather-proof
Property and anti-flammability, be amenable to different weather variation test, this material belongs to mineral compound-material, even if in fire
Under the conditions of, smoke amount is considerably less, does not generate toxic gas, does not generate corrosive gas, no acidic nontoxic equal gases diverging.Material
After high energy electron ray cross-linking radiation, physics, the mechanical performance of cable can be largely improved, is effectively improved to cable
Protection intensity, make cable have the good performance such as resistance to compression, ageing-resistant, acid and alkali-resistance environment, salt spray resistance, waterproof, be suitble to not
With using in environment, safety is good, long service life.
As it can be seen that a kind of novel weathering resistant flexible mineral insulation fireproof cable provided by the utility model, structure and production work
Skill is simple, is easily installed and is applied to different places, and each layer of structure design is provided to can be anti-to cable core progress multi-insulation
The protection of fire, so that Integral cable has flexibility, fire line, insulating properties, weatherability, resistance to ag(e)ing and anti-collision performance,
Great guarantee is provided when fire occurs for crowd evacuation and fire rescue.
Further, filled layer described in the utility model is made of Ceramic silicon rubber insulating materials.Ceramic silicon rubber is exhausted
Edge density of material weight is small, and heat setting preceding very soft meeting, being filled using this material not only can guarantee cable
Rounding and pliability, the small more convenient installation of weight, moreover it is possible to be hardened to ceramics when meeting high temperature, completely cut off external fire source, electricity completely
Source guarantees that cable core does not form access and normal power-up with external power supply or electric conductor, increases the entirety under fire condition
The service life of cable.
Further, conductive core described in the utility model two class annealed coppers as defined in GB/T3956-2008 standard twist
Conductor is closed to be made.Two class annealed copper stranded conductor flexibilities are good, production easy to process, can better ensure that cable is applied in installation
If there is higher flexible during.
Further, the first heat-resistant layer and the second heat-resistant layer described in the utility model being synthesized by heatproof not less than 1000 DEG C
Mica material is made.Synthetic mica material is non-metal insulating material, and heatproof is up to 1000 DEG C or more, and volume resistivity compares day
Right mica is 1000 times high, have that electrical insulating property is good, vacuum deflation is extremely low under high temperature and acid and alkali-resistance, it is transparent, stripping and rich can be divided
The features such as elastic, is difficult to ignite with fire, ensure that cable has higher high temperature resistance, so as to preferably completely cut off external open fire
Damage to conductive core.
Further, the first insulating layer described in the utility model and second insulating layer are made of flexible mineral insulation material.
The insulation performance of flexible mineral insulation material is stronger, preferably can carry out insulation protection to conductive core and heat-resistant layer.
Further, belting layer described in the utility model is made of flexible mineral insulation material.Belting layer is using flexibility
Mineral insulating material, material have flexible structure, improve flexible energy after cable finished product, can preferably avoid the occurrence of cable
The hard situation of overall structure.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of novel weathering resistant flexible mineral insulation fireproof cable；
Wherein, 1 is conductive core；11 be the first heat-resistant layer；12 be the first insulating layer；13 be the first interlocked metallic layer；2 are
Neutral core；21 be the second heat-resistant layer；22 be second insulating layer；23 be the second interlocked metallic layer；3 be filled layer；4 be band
Layer；5 be external sheath layer.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment
As shown in Figure 1, a kind of novel weathering resistant flexible mineral insulation fireproof cable described in the utility model, the cable from
It is interior to outside successively include cable core, filled layer 3, belting layer 4 and external sheath layer 5.
Cable core is formed by least three conductor wire cores and at least one neutral core stranding.
Conductor wire core successively includes conductive core 1, the first insulation composite and the first interlocked metallic layer 13 from inside to outside.
The present embodiment preferably, the two class annealed copper stranded conductor as defined in GB/T3956-2008 standard of conductive core 1
It is made, flexibility is good, production easy to process, can better ensure that cable has higher bendable during mounting and installation
Qu Xing.
For first insulation composite around being wrapped in outside conductive core 1, the first insulation composite includes the first heat-resistant layer 11 and first
Insulating layer 12.First insulating layer 12 is around being wrapped in outside the first heat-resistant layer 11.First interlocked metallic layer 13 is made of annealed copper interlocking,
It is coated on outside the first insulation composite.
Neutral core successively includes neutral core 2, the second insulation composite and the second interlocked metallic layer 23 from inside to outside.
For second insulation composite around being wrapped in outside neutral core 2, second insulation composite includes 21 He of the second heat-resistant layer
Second insulating layer 22.Second insulating layer 22 is around being wrapped in outside the second heat-resistant layer 21.Second interlocked metallic layer 23 is interlocked by annealed copper
It is made, is coated on outside the second insulation composite.
Preferably, the first heat-resistant layer 11 and the second heat-resistant layer 21 are not less than 1000 DEG C of synthetic mica by heatproof to the present embodiment
Material is made, and is difficult to ignite with fire, ensure that cable has higher high temperature resistance, so as to preferably completely cut off external open fire pair
The damage of conductive core.
Preferably, the first insulating layer 12 and the second insulating layer 22 are by flexible mineral insulation material system for the present embodiment
At the insulation performance of flexible mineral insulation material is stronger, preferably can carry out insulation protection to conductive core and heat-resistant layer.
Filled layer 3 extrudes between the gap of cable core and cable core and belting layer 4.The present embodiment preferably, filled layer 3
It is made of Ceramic silicon rubber insulating materials, Ceramic silicon rubber insulating materials density weight is small, before chance is heat setting very
Softness, is hardened to ceramics when encountering high temperature of fire, completely cut off external fire source, power supply completely, guarantee cable conductor not with external electrical
Source or electric conductor form access and normal power-up, increase the service life of the Integral cable under fire condition.
Belting layer 4 is double-deck around being wrapped on filled layer 3.Preferably, belting layer 4 is by flexible mineral insulation material system for the present embodiment
At material has flexible structure, can preferably improve flexible after cable finished product.
External sheath layer 5 is made of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, extrudes on belting layer 4.Material
With weatherability, it is amenable to the test of different weather variation, by can largely mention after high energy electron ray cross-linking radiation
The high physics of cable, mechanical performance, effectively improve the protection intensity to cable, cable are made to have resistance to compression, ageing-resistant, acid and alkali-resistance
The good performance such as environment, salt spray resistance, waterproof is suitble to use in different environments, long service life.
As it can be seen that a kind of novel weathering resistant flexible mineral insulation fireproof cable provided by the utility model, composition material are equal
For fire proofing material, thus cable sheet is as non-ignitibility.Use separation existing market fireproof cable product entirety welded tube metallic sheath for
The independent interlocked metallic set of each cable core, had not only remained the anti-collision performance of metallic sheath mineral fireproof cable, but also substantially reduce
The bending radius of entire cable, increases flexibility, can be used in the fire prevention place for more needing bending radius small.The cable
Finished product can long length superposition production, and can avoid installation non junction, construction is simple, improve reliability.Product meets BS6387,
IEC international standard can bear burning in 150 DEG C/3 hours in the case where electrification, and ensure the normal operation of circuit.Therefore should
Cable can still continue to use longer time more than short-circuit temperature, the renewable use of cable, when such as track reconstruction adjustment,
Cable can remove reuse, and can be widely applied to the heatproof fire protection requirement under each different places, main power source control etc.
Etc..
The utility model is not limited to above embodiment, if various changes or modifications to the utility model do not take off
Spirit and scope from the utility model, if these modification and variations belong to the claims and equivalents of the utility model
Within the scope of, then the utility model is also intended to encompass these modification and variations.
Claims (8)
1. a kind of novel weathering resistant flexible mineral insulation fireproof cable, it is characterised in that: the cable successively includes from inside to outside
Cable core, filled layer, belting layer and external sheath layer；
The cable core is formed by least three conductor wire cores and at least one neutral core stranding；
The conductor wire core successively includes conductive core, the first insulation composite and the first interlocked metallic layer from inside to outside；Institute
The first insulation composite is stated around being wrapped in outside the conductive core；First insulation composite includes that the first heat-resistant layer and first are exhausted
Edge layer；First insulating layer is around being wrapped in outside first heat-resistant layer；The first interlocked metallic layer is by annealed copper interlock system
At being coated on outside first insulation composite；
The neutrality core successively includes neutral core, the second insulation composite and the second interlocked metallic layer from inside to outside；Institute
The second insulation composite is stated around being wrapped in outside the neutral core；Second insulation composite includes that the second heat-resistant layer and second are exhausted
Edge layer；The second insulating layer is around being wrapped in outside second heat-resistant layer；The second interlocked metallic layer is by annealed copper interlock system
At being coated on outside second insulation composite；
The filled layer extrudes between the gap and the cable core and the belting layer of the cable core；
The belting layer bilayer is around being wrapped on the filled layer；
The external sheath layer is made of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin material, extrudes on the belting layer.
2. a kind of novel weathering resistant flexible mineral insulation fireproof cable according to claim 1, it is characterised in that: the filling
Layer is made of Ceramic silicon rubber insulating materials.
3. a kind of novel weathering resistant flexible mineral insulation fireproof cable according to claim 2, it is characterised in that: the conduction
Core two class annealed copper stranded conductors as defined in GB/T3956-2008 standard are made.
4. a kind of novel weathering resistant flexible mineral insulation fireproof cable according to claim 3, it is characterised in that: described first
Synthetic mica material of the heat-resistant layer by heatproof not less than 1000 DEG C is made.
5. a kind of novel weathering resistant flexible mineral insulation fireproof cable according to claim 4, it is characterised in that: described second
Synthetic mica material of the heat-resistant layer by heatproof not less than 1000 DEG C is made.
6. a kind of novel weathering resistant flexible mineral insulation fireproof cable according to claim 5, it is characterised in that: described first
Insulating layer is made of flexible mineral insulation material.
7. a kind of novel weathering resistant flexible mineral insulation fireproof cable according to claim 6, it is characterised in that: described second
Insulating layer is made of flexible mineral insulation material.
8. -7 any a kind of novel weathering resistant flexible mineral insulation fireproof cable according to claim 1, it is characterised in that: institute
Belting layer is stated to be made of flexible mineral insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201928.6U CN208400545U (en) | 2018-07-26 | 2018-07-26 | A kind of novel weathering resistant flexible mineral insulation fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201928.6U CN208400545U (en) | 2018-07-26 | 2018-07-26 | A kind of novel weathering resistant flexible mineral insulation fireproof cable |
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| Publication Number | Publication Date |
|---|---|
| CN208400545U true CN208400545U (en) | 2019-01-18 |
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|---|---|---|---|
| CN201821201928.6U Active CN208400545U (en) | 2018-07-26 | 2018-07-26 | A kind of novel weathering resistant flexible mineral insulation fireproof cable |
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