CN208752987U - Crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable - Google Patents
Crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable Download PDFInfo
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- CN208752987U CN208752987U CN201821095772.8U CN201821095772U CN208752987U CN 208752987 U CN208752987 U CN 208752987U CN 201821095772 U CN201821095772 U CN 201821095772U CN 208752987 U CN208752987 U CN 208752987U
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Abstract
The utility model discloses crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cables, including core, the outside of the core is provided with wrapping layer, gap between the wrapping layer and core is filled with filler material, the outside of the wrapping layer is equipped with steel-tape armouring layer, the outside of the steel-tape armouring layer is provided with oxygen barrier belt, the outside of the oxygen barrier belt is provided with layer of silica gel, the layer of silica gel is internally provided with multiple stomatas, the inside of the stomata is filled with anti-flammability gas, the anti-flammability gas is nitrogen, the outside of the layer of silica gel is provided with worm ant protective layer.The utility model passes through setting polyolefin protective layer, capsaicine layer, asbestos yarn layer; it is not gnawed by worm ant to preferably protect cable; silica gel melting layer; release anti-flammability gas; flame is set to completely cut off air; to make cable stop burning in the case where oxygen can not be touched, not will cause secondary on fire.
Description
Technical field
The utility model relates to field of cable technology more particularly to crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardants
A class fire-resisting cable.
Background technique
It is divided into A class and B class in Chinese common fire-resisting cable, B class cable can be in 750 degree to 800 degree of flame
It neutralizes and is resistant to burning under voltage rating at least 90 minutes and cable is not breakdown, improving flame retardant coating manufacturing process and increasing resistance to
A class fire-resisting cable is had developed again on the basis of the methods of fire bed, it can be in 950 degree to 1,000 degree of flame and volume
Tolerance is burnt at least 90 minutes under constant voltage and cable is not breakdown, and the fire resistance of A class fire-resisting cable is better than B class, separately
Outside, mineral insulated cable is that performance is preferably a kind of in fire-resisting cable, it is added by copper core, copper sheath, magnesium oxide insulated material
Made of work, abbreviation MI cable, the cable is made of flame retardant coating inorganic matter completely, and the flame retardant coating of common fire-resisting cable is by nothing
Machine object is combined with general organic matter, therefore the more common fire-resisting cable of fire resistance of MI cable is more excellent and will not be due to burning
Decompose generate corrosive gas, MI cable have good fire-resistance property and can with long-term work 250 degree of high temperature it
Under, while there are also explosion-proof, corrosion resistance is strong, current-carrying capacity is big, radiation hardness, high mechanical strength, small in size, light-weight, the service life is long, nothing
The characteristics of cigarette, but price, complex process, difficulty of construction is big, in oily irrigated area, important timber structure public building, high temperature place etc.
Fire resistant requirements height and economy acceptable occasion, can be used the good cable of this fire resistance.
And general fire-resisting cable need for cable to be mounted on people can not touch-control place, such as underground, existing market
On fire-resisting cable embedment underground after can not prevent gnawing for worm ant well, be easy to cause fault, if cable from
After inside is on fire, it can not effectively extinguish fire source, be easy to cause secondary on fire.
Utility model content
The mesh of the utility model is in order to solve disadvantage existing in the prior art, and the crosslinked polyetylene insulated steel band proposed
Armouring low-smoke non-halogen flame-retardant A class fire-resisting cable.
To achieve the goals above, the utility model adopts the technical scheme that
Crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable, including core, the outside of the core
It is provided with wrapping layer, the gap between the wrapping layer and core is filled with filler material, and the outside of the wrapping layer is equipped with steel
Band armor, the outside of the steel-tape armouring layer are provided with oxygen barrier belt, and the outside of the oxygen barrier belt is provided with layer of silica gel, institute
Multiple stomatas that are internally provided with of layer of silica gel are stated, the inside of the stomata is filled with anti-flammability gas, and the anti-flammability gas is
Nitrogen, the outside of the layer of silica gel are provided with worm ant protective layer, the outside of the worm ant protective layer be provided with high flame resistance, low smoke without
Halogen external sheath layer.
Preferably, the quantity of the core is three, and core includes conductor, fire-resistant isinglass belt, insulating layer, the outside of conductor
Equipped with fire-resistant isinglass belt, the outside of fire-resistant isinglass belt is equipped with insulating layer, three cores circumferentially array distribution in filler material
Portion.
Preferably, the material of the insulating layer is crosslinked polyethylene.
Preferably, the worm ant protective layer includes polyolefin protective layer, capsaicine layer, asbestos yarn layer, the setting of asbestos yarn layer
In the outside of layer of silica gel, the outside of asbestos yarn layer is arranged in capsaicine layer, and the outside of capsaicine layer is arranged in polyolefin protective layer.
Preferably, circumferentially permutation is arranged in the inside of layer of silica gel to the stomata.
Preferably, the filler material is flake asbestos, and the material of wrapping layer is polytetrafluoroethylene (PTFE), and the material of oxygen barrier belt is nothing
Alkali glass band.
Compared with prior art, the utility model has the beneficial effects that being protected in the utility model by setting polyolefin
Layer, capsaicine layer, asbestos yarn layer, polyolefin protective layer are a kind of plastic products, are not easy to gnaw, capsaicine layer is arranged in asbestos yarn
Layer is external, and the special odor that capsaicine layer distributes can disperse worm ant, not gnawed by worm ant to preferably protect cable, leads to
Setting layer of silica gel, stomata and anti-flammability gas are crossed, after on fire inside cable, silica gel melting layer releases anti-flammability gas, makes
Flame completely cuts off air, so that cable be made to stop burning in the case where that can not touch oxygen, not will cause secondary on fire.
Detailed description of the invention
Fig. 1 be the utility model proposes crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable
Structural schematic diagram；
Fig. 2 be the utility model proposes core structural schematic diagram；
Fig. 3 be the utility model proposes worm ant protective layer structural schematic diagram.
In figure: 1 core, 2 conductors, 3 fire-resistant isinglass belts, 4 insulating layers, 5 filler materials, 6 wrapping layers, 7 steel-tape armouring layers, 8 every
Oxygen belt, 9 layer of silica gel, 10 stomatas, 11 worm ant protective layers, 12 high flame resistance, low smoke Halogen external sheath layers, 13 polyolefin protective layers, 14
Capsaicine layer, 15 asbestos yarn layers.
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.
Referring to Fig.1-3, crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable, including core 1, core
The quantity of body 1 is three, and core 1 includes conductor 2, fire-resistant isinglass belt 3, insulating layer 4, and the outside of conductor 2 is equipped with fire-resistant isinglass belt
3, the outside of fire-resistant isinglass belt 3 is equipped with insulating layer 4, and the material of insulating layer 4 is crosslinked polyethylene, three cores 1 circumferentially array
It is distributed in the inside of filler material 5, the outside of core 1 is provided with wrapping layer 6, and the gap between wrapping layer 6 and core 1 is filled out
Charge 5, the outside of wrapping layer 6 are equipped with steel-tape armouring layer 7, and the outside of steel-tape armouring layer 7 is provided with oxygen barrier belt 8, filler material 5
For flake asbestos, the material of wrapping layer 6 is polytetrafluoroethylene (PTFE), and the material of oxygen barrier belt 8 is alkali-free glass band, oxygen barrier belt 8 it is outer
Portion is provided with layer of silica gel 9, and layer of silica gel 9 is internally provided with multiple stomatas 10, and circumferentially permutation is arranged in layer of silica gel 9 to stomata 10
The inside of inside, stomata 10 is filled with anti-flammability gas, and anti-flammability gas is nitrogen, passes through setting layer of silica gel 9, stomata 10 and resistance
Combustion property gas, after on fire inside cable, layer of silica gel 9 is melted, and anti-flammability gas is released, and so that flame is completely cut off air, to make
Cable stops burning in the case where that can not touch oxygen, not will cause secondary on fire, and the outside of layer of silica gel 9 is provided with worm ant
Protective layer 11, worm ant protective layer 11 include polyolefin protective layer 13, capsaicine layer 14, asbestos yarn layer 15, and asbestos yarn layer 15 is arranged
In the outside of layer of silica gel 9, the outside of asbestos yarn layer 15 is arranged in capsaicine layer 14, and polyolefin protective layer 13 is arranged in capsaicine layer
14 outside, by the way that polyolefin protective layer 13, capsaicine layer 14, asbestos yarn layer 15 is arranged, polyolefin protective layer 13 is a kind of modeling
Material products are not easy to gnaw, and capsaicine layer 14 is attached on asbestos yarn layer 15, and the special odor that capsaicine layer 14 distributes can disperse
Worm ant is not gnawed to preferably protect cable by worm ant, and the outside of worm ant protective layer 11 is provided with high flame resistance, low smoke Halogen
External sheath layer 12.
Working principle: when worm ant gnaws cable, polyolefin protective layer 13 is a kind of plastic products, is not easy to gnaw, works as worm
After ant breaks through polyolefin protective layer 13, the penetrating odor that capsaicine layer 14 is distributed will drive worm ant, in addition asbestos yarn layer
15 quality itself are hard, are more not easy to gnaw, and after cable is on fire, temperature is excessively high to melt layer of silica gel 9, fill out inside layer of silica gel 9
The anti-flammability gas filled will release, and open fire and oxygen are separated, and flame is gradually put out under the support of no enough oxygen
It goes out.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable, including core (1), which is characterized in that institute
The outside for stating core (1) is provided with wrapping layer (6), and the gap between the wrapping layer (6) and core (1) is filled with filler material
(5), the outside of the wrapping layer (6) is equipped with steel-tape armouring layer (7), and the outside of the steel-tape armouring layer (7) is provided with oxygen barrier
The outside of belt (8), the oxygen barrier belt (8) is provided with layer of silica gel (9), and the layer of silica gel (9) is internally provided with multiple gas
Hole (10), the inside of the stomata (10) are filled with anti-flammability gas, and the anti-flammability gas is nitrogen, the layer of silica gel (9)
Outside be provided with worm ant protective layer (11), the outside of the worm ant protective layer (11) is provided with high flame resistance, low smoke Halogen oversheath
Layer (12).
2. crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable according to claim 1, feature
It is, the quantity of the core (1) is three, and core (1) includes conductor (2), fire-resistant isinglass belt (3), insulating layer (4), conductor
(2) outside is equipped with fire-resistant isinglass belt (3), and the outside of fire-resistant isinglass belt (3) is equipped with insulating layer (4), and three cores (1) are circumferentially
Inside of the array distribution in filler material (5).
3. crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable according to claim 2, feature
It is, the material of the insulating layer (4) is crosslinked polyethylene.
4. crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable according to claim 1, feature
It is, the worm ant protective layer (11) includes polyolefin protective layer (13), capsaicine layer (14), asbestos yarn layer (15), asbestos yarn
Layer (15) setting is arranged in the outside of layer of silica gel (9), capsaicine layer (14) in the outside of asbestos yarn layer (15), polyolefin protective layer
(13) it is arranged in the outside of capsaicine layer (14).
5. crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable according to claim 1, feature
It is, circumferentially permutation is arranged in the inside of layer of silica gel (9) to the stomata (10).
6. crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable according to claim 1, feature
It is, the filler material (5) is flake asbestos, and the material of wrapping layer (6) is polytetrafluoroethylene (PTFE), and the material of oxygen barrier belt (8) is nothing
Alkali glass band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821095772.8U CN208752987U (en) | 2018-07-11 | 2018-07-11 | Crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821095772.8U CN208752987U (en) | 2018-07-11 | 2018-07-11 | Crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208752987U true CN208752987U (en) | 2019-04-16 |
Family
ID=66055353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821095772.8U Expired - Fee Related CN208752987U (en) | 2018-07-11 | 2018-07-11 | Crosslinking polyethylene insulated steel band armored low-smoke non-halogen flame-retardant A class fire-resisting cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208752987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112102990A (en) * | 2020-08-13 | 2020-12-18 | 福建南新电缆有限公司 | High flame-retardant insulated wire and cable |
-
2018
- 2018-07-11 CN CN201821095772.8U patent/CN208752987U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112102990A (en) * | 2020-08-13 | 2020-12-18 | 福建南新电缆有限公司 | High flame-retardant insulated wire and cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20190711 |