CN206003513U - A kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable - Google Patents
A kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable Download PDFInfo
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- CN206003513U CN206003513U CN201621007363.9U CN201621007363U CN206003513U CN 206003513 U CN206003513 U CN 206003513U CN 201621007363 U CN201621007363 U CN 201621007363U CN 206003513 U CN206003513 U CN 206003513U
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Abstract
The utility model discloses a kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable, it includes low-smoke halogen-free polyolefin sheath（1）, conductive unit, center reinforcemen（2）, alkali-free glass fiber belt（3）With low-smoke non-halogen flame-retardant band（4）, center reinforcemen（2）It is arranged at low-smoke halogen-free polyolefin sheath（1）Middle part, center reinforcemen（2）Cylinder on and around center reinforcemen（2）Circumferencial direction be evenly distributed with multiple semi-circular recesses（5）, copper conductor（6）It is wrapped in ceramic polyolefin refractory insulating layer（7）Interior, ceramic polyolefin refractory insulating layer（7）It is wrapped in low-smoke halogen-free polyolefin insulating barrier（8）Interior, low-smoke halogen-free polyolefin insulating barrier（8）Press on semi-circular recesses（5）With low-smoke non-halogen flame-retardant band（4）Between.The beneficial effects of the utility model are：Environmental protection, high mechanical strength, fire-retardant, fire resistance is excellent, cable fire carbonization can be prevented effectively from after there is short circuit phenomenon.
Description
Technical field
The utility model is related to the technical field of the construction of cable, particularly a kind of ceramic low-smoke halogen-free polyolefin flame proof electrical
Cable.
Background technology
At present, with the fast development of national economy and the continuous improvement of living standards of the people, society's electricity consumption amount greatly increases
Plus.The steep increasing of various electrical equipment consumptions, electrical fire accident also increase severely therewith.According to statistics, there is fire about ten every year in China
Many ten thousand, more than 10 hundred million yuan of direct property loss.Wherein, by cable short circuit, excess load, electrical equipment malfunction etc., electrically reason causes
Fire account for the 30% of sum, the frequency of electrical fire and caused loss are all occupied first of all kinds of fire.Electric
In fire, the fire caused by cable accounts for half.Therefore the fire-retardant and fire safety problem people with regard to cable increasingly weigh
Depending on to the fire-retardant and fire protection requirement of cable also more and more higher.
Traditional fire-resisting cable adopts copper conductor, adopts Mica tape flame retardant coating, outside Mica tape layer outside copper conductor
Insulated using flame-proof polyvinyl chloride or low-smoke non-halogen flame-retardant oversheath, such as NH-YJV, WDZN-YJY etc., but such fire-resisting cable is deposited
In following shortcoming：1. the fire resistance rating of cable can only achieve B level（750 DEG C, 90 minutes, 2. insulate exhausted using flame-proof polyvinyl chloride
Edge, can produce HCL during burning（Hydrogen chloride）Deng toxic and harmful, have a strong impact on and healthy and safe do not meet environment protection requirement；
3. as the conductor diameter of cable is generally larger, during wrapped flame retardant coating mica tape, general lapping equipment is difficult to meet, and needs to take
Stranding winding machine, reduces production efficiency；4th, easily there are wrapped overlap, bottom pour ladle and the quality problems such as loose in around-packing technology, and impact is produced
Quality；5th, when stranding is pooled capital, wrapped mica tape is easy to wear, affects fire resisting and insulation effect.6th, when cable is laid,
It is excessive that cable undoubtedly can be caused copper cash in cable to occur bending and deformation by radial load, finally fracture, reduce its service life.
7th, after cable cancels, need copper cash could be taken out with blade cutting oversheath, so as to copper cash is recycled, but this cut
Mode not only operational hazards are cut, and increases the labour intensity of workman.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, provides a kind of compact conformation, high mechanical strength, green
Colour circle guarantor, fire resisting, good electric property, avoid cable fire before there is the ceramic low smoke and zero halogen of short circuit phenomenon, good flame retardation effect
Polyolefin fire-resisting cable.
The purpose of this utility model is achieved through the following technical solutions：A kind of ceramic low-smoke halogen-free polyolefin flame proof electrical
Cable, it include low-smoke halogen-free polyolefin sheath, conductive unit, center reinforcemen, alkali-free glass fiber belt and low-smoke non-halogen flame-retardant bag
Band, is enclosed with low-smoke non-halogen flame-retardant band, is enclosed with center and adds in low-smoke non-halogen flame-retardant band in low-smoke halogen-free polyolefin sheath
Strong part and many conductive units, center reinforcemen are arranged at the middle part of low-smoke halogen-free polyolefin sheath, the cylinder of center reinforcemen
Go up and the circumferencial direction around center reinforcemen is evenly distributed with multiple semi-circular recesses, conductive unit includes copper conductor, ceramic
Polyolefin refractory insulating layer and low-smoke halogen-free polyolefin insulating barrier, copper conductor are wrapped in ceramic polyolefin refractory insulating layer,
Ceramic polyolefin refractory insulating layer is wrapped in low-smoke halogen-free polyolefin insulating barrier, and low-smoke halogen-free polyolefin insulating barrier is wrapped in
In alkali-free glass fiber belt, alkali-free glass fiber belt is pressed between semi-circular recesses and low-smoke non-halogen flame-retardant band.
Low-smoke non-halogen flame-retardant is filled between described low-smoke non-halogen flame-retardant band and low-smoke halogen-free polyolefin insulating barrier to fill out
Fill layer.
Described center reinforcemen is arranged parallel to conductive unit.
Described ceramic polyolefin refractory insulating layer and low-smoke halogen-free polyolefin insulating barrier are double-layer coextrusions.
The utility model has advantages below：1st, fire resistance rating reaches A level；2nd, the utility model employs double hyer insulation knot
Structure, i.e. respectively ceramic low smoke halogen-free flame-retardant polyolefin layer and low smoke halogen-free flame-retardant polyolefin layer, produce during burning
Toxic and harmful, meets environment protection requirement；3rd, the filling of cable and around packaging material all adopt low smoke halogen-free fire retardant fire resistant material
Material, it is ensured that the fire resistance of whole cable and the feature of environmental protection；4. cable jacket adopts low-smoke halogen-free polyolefin oversheath, fire resistance
Well.5th, the utility model low-smoke halogen-free polyolefin insulating barrier is pressed between semi-circular recesses and low-smoke non-halogen flame-retardant band,
When the cable is subject to extraneous radial load, due to conductive unit all the time in semi-circular recesses and low-smoke non-halogen flame-retardant band it
Between, center reinforcemen is applied to an extraneous opposition, so as to ensure that copper conductor occurs bending and deformation, effectively extends electricity
The service life of cable.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure, 1- low-smoke halogen-free polyolefin sheath, 2- center reinforcemen, 3- alkali-free glass fiber belt, 4- low-smoke non-halogen flame-retardant
Band, 5- semi-circular recesses, 6- copper conductor, 7- ceramic polyolefin refractory insulating layer, 8- low-smoke halogen-free polyolefin insulating barrier, 9-
Low-smoke non-halogen flame-retardant packed layer.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is further described, protection domain of the present utility model be not limited to
Lower described：
As shown in figure 1, a kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable, it include low-smoke halogen-free polyolefin sheath 1,
Conductive unit, center reinforcemen 2, alkali-free glass fiber belt 3 and low-smoke non-halogen flame-retardant band 4.Described ceramic polyolefin fire resisting
Insulating barrier 7 and low-smoke halogen-free polyolefin insulating barrier 8 are double-layer coextrusions.
As shown in figure 1, being enclosed with low-smoke non-halogen flame-retardant band 4, low-smoke non-halogen flame-retardant bag in low-smoke halogen-free polyolefin sheath 1
Center reinforcemen 2 and Duo Gen conductive unit are enclosed with band 4, center reinforcemen 2 is arranged in low-smoke halogen-free polyolefin sheath 1
Portion, on the cylinder of center reinforcemen 2 and the circumferencial direction around center reinforcemen 2 is evenly distributed with multiple semi-circular recesses 5, conductive
Unit includes copper conductor 6, ceramic polyolefin refractory insulating layer 7 and low-smoke halogen-free polyolefin insulating barrier 8, and copper conductor 6 is wrapped in
In ceramic polyolefin refractory insulating layer 7, ceramic polyolefin refractory insulating layer 7 is except possessing low smoke halogen-free flame-retardant polyolefin
Outside characteristic, also there are ceramic characteristics, i.e., hard after ablation armour body section can generate uniform ceramic capillary, and ceramic capillary was both
Insulating barrier can be done, fireproof layer can be done again, when ignition of cable, heat can be separated, it is to avoid 6 scaling loss of copper conductor.Pottery
Porcelain polyolefin refractory insulating layer 7 is wrapped in low-smoke halogen-free polyolefin insulating barrier 8, and low-smoke halogen-free polyolefin insulating barrier 8 is wrapped up
In alkali-free glass fiber belt 3, described alkali-free glass fiber belt 3 can be prevented effectively from the mailing material of low-smoke halogen-free polyolefin sheath 1
Material burning carbonization and easily with copper conductor UNICOM, further avoid the phenomenon of the alternate UNICOM of appearance and short circuit.
As shown in figure 1, alkali-free glass fiber belt 3 is pressed between semi-circular recesses 5 and low-smoke non-halogen flame-retardant band 4, when this
When cable is subject to extraneous radial load, as conductive unit is between semi-circular recesses 5 and low-smoke non-halogen flame-retardant band 4 all the time,
Center reinforcemen 2 is applied to an extraneous opposition, so as to ensure that copper conductor 6 occurs bending and deformation, effectively extends electricity
The service life of cable, will not occur mutual extrusion abrasion in addition between adjacent ceramic polyolefin refractory insulating layer 7, it is to avoid pottery
7 wear out failure of porcelain polyolefin refractory insulating layer.
Low-smoke non-halogen flame-retardant is filled between described low-smoke non-halogen flame-retardant band 4 and low-smoke halogen-free polyolefin insulating barrier 8
Packed layer 9.Described center reinforcemen 2 is arranged parallel to conductive unit.The thickness of described low-smoke halogen-free polyolefin sheath 1 is big
Thickness in low-smoke non-halogen flame-retardant band 4.
Claims (4)
1. a kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable, it is characterised in that：It includes low-smoke halogen-free polyolefin sheath
（1）, conductive unit, center reinforcemen（2）, alkali-free glass fiber belt（3）With low-smoke non-halogen flame-retardant band（4）, low smoke and zero halogen polyene
Hydrocarbon sheath（1）Low-smoke non-halogen flame-retardant band is inside enclosed with（4）, low-smoke non-halogen flame-retardant band（4）Center reinforcemen is inside enclosed with（2）
With many conductive units, center reinforcemen（2）It is arranged at low-smoke halogen-free polyolefin sheath（1）Middle part, center reinforcemen（2）'s
On cylinder and around center reinforcemen（2）Circumferencial direction be evenly distributed with multiple semi-circular recesses（5）, conductive unit includes that copper is led
Body（6）, ceramic polyolefin refractory insulating layer（7）With low-smoke halogen-free polyolefin insulating barrier（8）, copper conductor（6）It is wrapped in pottery
Change polyolefin refractory insulating layer（7）Interior, ceramic polyolefin refractory insulating layer（7）It is wrapped in low-smoke halogen-free polyolefin insulating barrier
（8）Interior, low-smoke halogen-free polyolefin insulating barrier（8）It is wrapped in alkali-free glass fiber belt（3）Interior, alkali-free glass fiber belt（3）Press on half
Circular groove（5）With low-smoke non-halogen flame-retardant band（4）Between.
2. a kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable according to claim 1, it is characterised in that：Described is low
Cigarette halogen-free flameproof band（4）With low-smoke halogen-free polyolefin insulating barrier（8）Between be filled with low-smoke non-halogen flame-retardant packed layer（9）.
3. a kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable according to claim 1, it is characterised in that：In described
Heart reinforcement（2）Arrange parallel to conductive unit.
4. a kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable according to claim 1, it is characterised in that：Described pottery
Porcelain polyolefin refractory insulating layer（7）With low-smoke halogen-free polyolefin insulating barrier（8）It is double-layer coextrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621007363.9U CN206003513U (en) | 2016-08-31 | 2016-08-31 | A kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621007363.9U CN206003513U (en) | 2016-08-31 | 2016-08-31 | A kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable |
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| Publication Number | Publication Date |
|---|---|
| CN206003513U true CN206003513U (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621007363.9U Active CN206003513U (en) | 2016-08-31 | 2016-08-31 | A kind of ceramic low-smoke halogen-free polyolefin fire-resisting cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424667A (en) * | 2017-07-27 | 2017-12-01 | 公安部四川消防研究所 | A kind of halogen-free flameproof fire-resisting cable and preparation method thereof |
-
2016
- 2016-08-31 CN CN201621007363.9U patent/CN206003513U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424667A (en) * | 2017-07-27 | 2017-12-01 | 公安部四川消防研究所 | A kind of halogen-free flameproof fire-resisting cable and preparation method thereof |
| CN107424667B (en) * | 2017-07-27 | 2024-01-23 | 应急管理部四川消防研究所 | Halogen-free flame-retardant fire-resistant cable and preparation method thereof |
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