CN213366211U - High-reliability halogen-free low-smoke flame-retardant fire-resistant cable - Google Patents
High-reliability halogen-free low-smoke flame-retardant fire-resistant cable Download PDFInfo
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- CN213366211U CN213366211U CN202022761253.4U CN202022761253U CN213366211U CN 213366211 U CN213366211 U CN 213366211U CN 202022761253 U CN202022761253 U CN 202022761253U CN 213366211 U CN213366211 U CN 213366211U
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Abstract
The utility model discloses a high reliability does not have steamed low fire-retardant fire resisting cable of cigarette, including low cigarette halogen-free sheath and steel band armor, low cigarette halogen-free sheath inboard is provided with the steel band armor, the steel band armor inboard is provided with around the covering, form by nylon rope spiral winding in the covering, be provided with the waterproof layer around the covering inboard, the waterproof layer inboard is provided with the inner sheath, the inner sheath inboard is provided with first hexagonal skeleton. Has the advantages that: the utility model discloses be provided with leading body and auxiliary conductor, leading body and auxiliary conductor combined work under the normal condition run into the heavy disaster condition such as conflagration, if outer auxiliary conductor is destroyed, leading body can continue work a period, and efficiency reduces nevertheless to be unlikely to lose effect, can provide more sufficient time for the electric power transmission of heavy conflagration, makes the utility model has the advantages of the time of nai time is more of a specified duration.
Description
Technical Field
The utility model relates to a high reliability cable technical field especially relates to high reliability does not have steamed low fire-retardant fire resisting cable of cigarette.
Background
The fire-resistant cable is a cable capable of keeping safe operation for a certain time under the condition of flame combustion, and can be widely applied to places related to fire safety and fire fighting and life saving, such as high-rise buildings, underground railways, underground streets, large power stations, important industrial and mining enterprises and the like, and can still keep safe operation for a certain time when a fire disaster and other conditions occur, so that powerful guarantee is provided for power output in the fire disaster.
The existing fire-resistant cable has certain limitation when in use, such as the fire-resistant time is not long enough, the power demand of the actual fire scene can not be supported, the compression resistance and tensile property are poor, the compression is easy to damage, the distance between the wire conductors is too close, the wire conductors are easy to contact with each other and short-circuit after being softened by fire, and the distance between the conductors is too far, so that the power transmission is insufficient.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a there is not steamed low fire-retardant fire resisting cable of cigarette of high reliability possesses resistance to compression, tensile, the refractory time is more of a specified duration, space utilization is high, can prevent short circuit, the stronger advantage of electric power transmission, and then solves the problem in the above-mentioned background art.
(II) technical scheme
In order to achieve the above purpose, the utility model adopts the following technical scheme: high reliability does not have steamed low fire-retardant fire resisting cable of cigarette, including low cigarette halogen-free sheath and steel tape armoring, low cigarette halogen-free sheath inboard is provided with the steel tape armoring, the steel tape armoring inboard is provided with around the covering, form by nylon rope spiral winding in the covering, be provided with the waterproof layer around the covering inboard, the waterproof layer inboard is provided with the inner sheath, the inner sheath inboard is provided with first hexagonal skeleton.
Preferably, an oxygen separation layer is arranged between the inner sheath and the first hexagonal framework.
Preferably, a framework insulating layer is arranged on the inner side of the first hexagonal framework, and a second hexagonal framework is arranged on the inner side of the framework insulating layer.
Preferably, the equidistance is provided with the auxiliary conductor between skeleton insulating layer and the second hexagonal skeleton, the auxiliary conductor outside is provided with the flame retardant coating, the flame retardant coating outside is provided with the insulating layer.
Preferably, all be provided with the round hole between lieing in first hexagonal skeleton and the second hexagonal skeleton between the auxiliary conductor, be used for placing tensile cord in the round hole, lie in tensile cord and the auxiliary conductor outside and be provided with first filling layer between first hexagonal skeleton and the second hexagonal skeleton.
Preferably, a main conductor is arranged in the second hexagonal framework.
Preferably, the main conductor outer side is provided with a composite insulating layer, the main conductor fire-resistant layer is arranged on the outer side of the composite insulating layer, and the main conductor fire-resistant layer is arranged on the outer side of the main conductor fire-resistant layer and positioned in the second hexagonal framework and provided with the main conductor insulating layer.
Preferably, a second filling layer is arranged between the main conductor insulating layer and the second hexagonal framework.
(III) advantageous effects
Compared with the prior art, the utility model provides a high reliability does not have steamed low fire-retardant fire resisting cable of cigarette, possesses following beneficial effect:
(1) the utility model is provided with a first hexagonal framework and a second hexagonal framework, wherein an auxiliary conductor is arranged between the first hexagonal framework and the second hexagonal framework, a main conductor is arranged in the second hexagonal framework, the first hexagonal framework and the second hexagonal framework are both made of light stainless steel, which not only provides equivalent structural strength for the cable, but also plays a role of isolating the auxiliary conductor of the main conductor, the main conductor and the auxiliary conductor work together under normal condition, when the major disaster condition such as fire disaster occurs, if the outer auxiliary conductor is damaged, the main conductor can continue to work for a period of time, the efficiency is reduced but is unlikely to lose effect, more sufficient time can be provided for the power transmission of the major fire disaster, and the filling layer between the auxiliary conductors is filled with fillers, and is also provided with a round hole for placing the anti-pulling wire, on one hand, the utility model can isolate the auxiliary conductors to prevent mutual contact short circuit, on the other hand, the utility model can make up the defect of weak tensile property of the steel frame, so that the utility model has the advantages of longer compression resistance, tensile resistance and fire resistance time;
(2) the utility model discloses set the auxiliary conductor to five shapes, it is higher to the space utilization between first hexagonal skeleton and the second hexagonal skeleton for traditional circular cross section conductor, the cross-sectional area is great and mutual space is also big, and bigger cross-sectional area can provide more sufficient electric power and guarantee and conductor temperature is lower, bigger space can prevent the short circuit for this cable possesses space utilization height, can prevent short circuit, the stronger advantage of electric power transmission.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the high-reliability halogen-free low-smoke flame-retardant fire-resistant cable provided by the utility model;
fig. 2 is a schematic view of the internal structure of the first hexagonal framework of the high-reliability halogen-free low-smoke flame-retardant fire-resistant cable provided by the utility model;
fig. 3 is the utility model provides a high reliability does not have steamed low fire-retardant fire resisting cable's of cigarette second hexagonal skeleton internal structure schematic diagram.
Illustration of the drawings:
1. a low smoke zero halogen sheath; 2. steel tape armoring; 3. wrapping a covering; 4. a waterproof layer; 5. a first hexagonal skeleton; 6. a framework insulating layer; 7. an oxygen barrier layer; 8. a first filling layer; 9. an insulating layer; 10. a refractory layer; 11. an auxiliary conductor; 12. a circular hole; 13. resisting the pulling wire; 14. a second hexagonal framework; 15. a primary conductor; 16. a second filling layer; 17. a main conductor insulating layer; 18. a main conductor refractory layer; 19. a composite insulating layer; 20. an inner sheath.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, a high-reliability halogen-free low-smoke flame-retardant fire-resistant cable comprises a low-smoke halogen-free sheath 1 and a steel tape armor 2, the steel tape armor 2 is arranged on the inner side of the low-smoke halogen-free sheath 1, a wrapping layer 3 is arranged on the inner side of the steel tape armor 2, the wrapping layer 3 is formed by spirally winding a nylon rope, a waterproof layer 4 is arranged on the inner side of the wrapping layer 3, an inner sheath 20 is arranged on the inner side of the waterproof layer 4, a first hexagonal framework 5 is arranged on the inner side of the inner sheath 20, the first hexagonal framework 5 and a second hexagonal framework 14 are both made of light stainless steel, the waterproof layer 4 is a longitudinally wrapped aluminum-plastic composite tape layer.
In one embodiment, an oxygen-isolating layer 7 is disposed between the inner sheath 20 and the first hexagonal skeleton 5, and the oxygen-isolating layer 7 may be polyethylene and mica tape insulation.
In one embodiment, a framework insulating layer 6 is disposed inside the first hexagonal framework 5, a second hexagonal framework 14 is disposed inside the framework insulating layer 6, and the framework insulating layer 6 is a flame-retardant insulating layer made of a class a flame-retardant crosslinked polyethylene layer.
In one embodiment, the auxiliary conductors 11 are equidistantly arranged between the framework insulating layer 6 and the second hexagonal framework 14, the fire-resistant layer 10 is arranged outside the auxiliary conductors 11, the insulating layer 9 is arranged outside the fire-resistant layer 10, the auxiliary conductors 11 are arranged in a pentagonal shape, the space utilization rate between the first hexagonal framework 5 and the second hexagonal framework 14 is higher compared with that of a traditional circular-section conductor, the cross-sectional area is larger, the mutual gap is large, the larger cross-sectional area can provide more sufficient electric power guarantee, the conductor temperature is lower, and the larger gap can prevent short circuit.
In one embodiment, a circular hole 12 is formed between the two auxiliary conductors 11 and located between the first hexagonal framework 5 and the second hexagonal framework 14, a tensile wire 13 is placed in the circular hole 12, a first filling layer 8 is arranged between the tensile wire 13 and the auxiliary conductor 11 and located between the first hexagonal framework 5 and the second hexagonal framework 14, the tensile wire 13 can isolate the auxiliary conductors 11 to prevent mutual contact short circuit, and the defect that the tensile performance of the steel frame is not strong can be overcome.
In one embodiment, a primary conductor 15 is disposed within the second hexagonal framework 14.
In one embodiment, the composite insulating layer 19 is arranged outside the main conductor 15, the main conductor flame retardant layer 18 is arranged outside the composite insulating layer 19, the main conductor insulating layer 17 is arranged outside the main conductor flame retardant layer 18 and inside the second hexagonal framework 14, and the operation of the main conductor is ensured by the arrangement of the multiple layers of insulating layers and flame retardant layers.
In one embodiment, a second filling layer 16 is disposed between the main conductor insulating layer 17 and the second hexagonal framework 14, and both the second filling layer 16 and the first filling layer 8 can be filled with inorganic mineral ropes, so that the cable has good flame retardancy and tensile strength.
The working principle is as follows: the utility model is provided with a first hexagonal framework 5 and a second hexagonal framework 14, wherein an auxiliary conductor is arranged between the first hexagonal framework 5 and the second hexagonal framework 14, a main conductor 15 is arranged in the second hexagonal framework 14, the first hexagonal framework 5 and the second hexagonal framework 14 are both made of light stainless steel, which not only provides a considerable structural strength for the cable, but also plays a role of isolating the auxiliary conductor 11 of the main conductor 15, under normal conditions, the main conductor 15 and the auxiliary conductor 11 work together, when encountering fire and other serious disasters, the outer auxiliary conductor 11 is damaged, the main conductor 15 can continue to work for a period of time, the efficiency is reduced but is not lost, more sufficient time can be provided for the power transmission of the serious fire, and besides the filling layer between the auxiliary conductors 11 is filled with fillers, a round hole 12 is also additionally arranged for placing an anti-pulling wire 13, on one hand, the other hand, the isolation of the auxiliary conductors 11 can be realized to prevent mutual contact short circuit, on the other hand can compensate the not strong shortcoming of steelframe tensile strength ability, make the utility model has the advantages of resistance to compression, tensile, the more of a specified duration of refractory time, simultaneously the utility model discloses to assist conductor 11 to set to the pentagon shape, space utilization between to first hexagonal skeleton 5 and second hexagonal skeleton 14 is higher for traditional circular cross section conductor, the cross-sectional area is great and mutual space is also big, and bigger cross-sectional area can provide more sufficient electric power assurance and conductor temperature lower, bigger space can prevent the short circuit, make this cable possess space utilization height, can prevent the short circuit, electric power transmission stronger advantage.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. High reliability does not have steamed low fire-retardant fire resisting cable of cigarette, including low cigarette no halogen sheath (1) and steel band armor (2), its characterized in that, low cigarette no halogen sheath (1) inboard is provided with steel band armor (2), steel band armor (2) inboard is provided with around covering (3), form by nylon rope spiral winding in covering (3), be provided with waterproof layer (4) around covering (3) inboard, waterproof layer (4) inboard is provided with inner sheath (20), inner sheath (20) inboard is provided with first hexagonal skeleton (5).
2. The high-reliability halogen-free low-smoke flame-retardant fire-resistant cable according to claim 1, wherein an oxygen-isolating layer (7) is arranged between the inner sheath (20) and the first hexagonal framework (5).
3. The high-reliability halogen-free low-smoke flame-retardant fire-resistant cable according to claim 1, wherein a framework insulating layer (6) is arranged on the inner side of the first hexagonal framework (5), and a second hexagonal framework (14) is arranged on the inner side of the framework insulating layer (6).
4. The high-reliability halogen-free low-smoke flame-retardant fire-resistant cable is characterized in that an auxiliary conductor (11) is arranged between the framework insulating layer (6) and the second hexagonal framework (14) at an equal distance, a fire-resistant layer (10) is arranged on the outer side of the auxiliary conductor (11), and an insulating layer (9) is arranged on the outer side of the fire-resistant layer (10).
5. The high-reliability halogen-free low-smoke flame-retardant fire-resistant cable is characterized in that a round hole (12) is formed between a first hexagonal framework (5) and a second hexagonal framework (14) between two auxiliary conductors (11), an anti-pulling wire (13) is placed in the round hole (12), and a first filling layer (8) is arranged between the first hexagonal framework (5) and the second hexagonal framework (14) and outside the anti-pulling wire (13) and the auxiliary conductors (11).
6. The high-reliability halogen-free low-smoke flame-retardant fire-resistant cable according to claim 5, wherein a main conductor (15) is arranged in the second hexagonal framework (14).
7. The high-reliability halogen-free low-smoke flame-retardant fire-resistant cable according to claim 6, wherein a composite insulating layer (19) is arranged on the outer side of the main conductor (15), a main conductor flame-retardant layer (18) is arranged on the outer side of the composite insulating layer (19), and a main conductor insulating layer (17) is arranged on the outer side of the main conductor flame-retardant layer (18) and positioned in the second hexagonal framework (14).
8. The high-reliability halogen-free low-smoke flame-retardant fire-resistant cable according to claim 7, wherein a second filling layer (16) is arranged between the main conductor insulating layer (17) and the second hexagonal framework (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022761253.4U CN213366211U (en) | 2020-11-25 | 2020-11-25 | High-reliability halogen-free low-smoke flame-retardant fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022761253.4U CN213366211U (en) | 2020-11-25 | 2020-11-25 | High-reliability halogen-free low-smoke flame-retardant fire-resistant cable |
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| Publication Number | Publication Date |
|---|---|
| CN213366211U true CN213366211U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022761253.4U Active CN213366211U (en) | 2020-11-25 | 2020-11-25 | High-reliability halogen-free low-smoke flame-retardant fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213366211U (en) |
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- 2020-11-25 CN CN202022761253.4U patent/CN213366211U/en active Active
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