CN213459184U - Fire-resistant cable - Google Patents
Fire-resistant cable Download PDFInfo
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- CN213459184U CN213459184U CN202022295369.3U CN202022295369U CN213459184U CN 213459184 U CN213459184 U CN 213459184U CN 202022295369 U CN202022295369 U CN 202022295369U CN 213459184 U CN213459184 U CN 213459184U
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- glass fiber
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- resistant cable
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Abstract
The utility model discloses a fire-resistant cable contains a plurality of insulated wire, fire-resistant filler, around covering, carbon fiber tape layer, fire-retardant layer, glass fiber tape layer, armor and oversheath, and a plurality of insulated wire syntropy strands into the cable core, and fire-resistant filler fills in the outside clearance of a plurality of insulated wire, winds the covering and winds the package in the cable core outside, and carbon fiber tape layer, fire-retardant layer, glass fiber tape layer, armor and oversheath set gradually in the outside around the covering from inside to outside. The utility model discloses a combination of each part refractory material has improved the fire-resistant grade of cable greatly, can guarantee that cable operating time is longer in the conflagration.
Description
Technical Field
The utility model relates to a cable, especially a fire resisting cable belongs to the cable field.
Background
The wire and cable industry is the second industry in China next to the automobile industry, and both the product variety satisfaction rate and the domestic market share rate exceed 90%. The total output value of the electric wire and the electric cable in China exceeds the United states worldwide, and the electric wire and the electric cable become the first country for producing the electric wire and the electric cable in the world. Along with the high-speed development of the China wire and cable industry, the number of newly added enterprises is continuously increased, and the overall technical level of the industry is greatly improved. With the high-speed development of the cable industry, the requirement on the fire resistance and the flame retardance of the cable is higher, and the cable still can work normally for a long time under the extreme conditions of facing fire and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a fire resisting cable is provided, higher fire resistance has.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
a fire resistant cable, characterized by: contain a plurality of insulated wire, fire-resistant filler, around covering, carbon fiber tape layer, fire-retardant layer, glass fiber tape layer, armor and oversheath, a plurality of insulated wire syntropy hank into the cable core, fire-resistant filler is filled in the outside clearance of a plurality of insulated wire, around the covering in the cable core outside, carbon fiber tape layer, fire-retardant layer, glass fiber tape layer, armor and oversheath set gradually in the outside around the covering from inside to outside.
Furthermore, the insulated wire comprises a wire, a mica wrapping tape and an insulating layer, the mica wrapping tape is wrapped on the outer side of the wire, and the insulating layer is extruded on the outer side of the mica wrapping tape.
Furthermore, the gaps among the twisted insulated wires are filled with flame-retardant filling ropes.
Further, the refractory filler adopts alumina powder.
Furthermore, the wrapping layer is made of fire-resistant mica tapes.
Further, fire-retardant layer contains middle alumina powder layer, upside film, upside glass fiber layer, downside film, downside glass fiber layer and downside aluminium foil layer, and the upside glass fiber layer sets up in middle alumina powder layer upside, and the upside film sets up in upside glass fiber layer upside, and downside glass fiber layer sets up in middle alumina powder layer downside, and the downside film sets up in downside glass fiber layer downside, and downside aluminium foil layer sets up in downside film downside.
Furthermore, all the layers of the flame-retardant layer are bonded through an adhesive.
Further, the armor layer adopts interlocking armor.
Further, the outer sheath is made of low-smoke halogen-free polyolefin material.
Compared with the prior art, the utility model, have following advantage and effect: the fire-resistant cable greatly improves the fire-resistant grade of the cable through the combination of the fire-resistant materials of all parts, and can ensure that the working time of the cable is longer in a fire disaster; the flame-retardant filling rope is filled in the middle, so that the flame-retardant performance and the overall cable strength are ensured, and the aluminum oxide powder filler on the outer side of the insulated conductor can effectively protect the insulated conductor on the inner side and improve the fireproof performance of the insulated conductor; the flame-retardant layer with unique design ensures that the fire resistance is improved and the cable strength is higher by the combination of the alumina powder and the glass fiber.
Drawings
Fig. 1 is a schematic view of a fire resistant cable according to the present invention.
Fig. 2 is a schematic view of a flame retardant layer of the present invention.
Detailed Description
To elaborate on the technical solution adopted by the present invention for achieving the predetermined technical purpose, the technical solution in the embodiment of the present invention will be clearly and completely described below by combining with the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a partial embodiment of the present invention, not a whole embodiment, and technical means or technical features in the embodiment of the present invention can be replaced without paying creative efforts, and the present invention will be described in detail below by combining with the embodiments with reference to the drawings.
As shown in figure 1, the utility model discloses a fire-resistant cable contains a plurality of insulated wire, fire-resistant filler 5, around covering 6, carbon fiber tape layer 7, fire-retardant layer 8, glass fiber tape layer 9, armor 10 and oversheath 11, a plurality of insulated wire syntropy strands into the cable core, fire-resistant filler 5 is filled in the outside clearance of a plurality of insulated wire, around covering 6 in the cable core outside, carbon fiber tape layer 7, fire-retardant layer 8, glass fiber tape layer 9, armor 10 and oversheath 11 set gradually in the outside around covering 6 from inside to outside.
Insulated wire contains wire 2, mica around band 3 and insulating layer 4, and mica winds band 3 around the package in the outside of wire 2, and the crowded package of insulating layer 4 is in mica around the outside of band 3. Mica has better fire prevention fire resistance around band 3, and insulating layer 4 adopts low smoke and zero halogen polyolefin, and the material this application flame retardant property is good and when burning, does not produce toxic gas.
The fire-retardant filling rope 1 is filled in the gaps among the stranded insulated conductors, the fire-retardant filling rope 1 is made of a PP material, the overall fire resistance of the cable can be improved, a certain reinforced effect can be achieved, and the overall tensile property of the cable is improved.
The refractory filler 5 is made of alumina powder which has good flame-retardant and refractory properties, and a certain amount of glue can be mixed in the alumina powder during production, so that the alumina powder is conveniently extruded in gaps on the outer side of the insulated conductor.
Adopt fire-resistant mica tape around covering 6, can twine the inboard fire-resistant filler 5 and wrap up tightly, also can improve holistic fire resistance to a certain extent.
As shown in fig. 2, the flame retardant layer 8 includes a middle alumina powder layer 12, an upper film 14, an upper glass fiber layer 13, a lower film 16, a lower glass fiber layer 15, and a lower aluminum foil layer 17, the upper glass fiber layer 13 is disposed on the middle alumina powder layer 12, the upper film 14 is disposed on the upper glass fiber layer 13, the lower glass fiber layer 15 is disposed on the lower side of the middle alumina powder layer 12, the lower film 16 is disposed on the lower side of the lower glass fiber layer 15, and the lower aluminum foil layer 17 is disposed on the lower side of the lower film 16. And the layers of the flame-retardant layer 8 are bonded through an adhesive. Through the flame-retardant layer 8 formed by compounding in such a way, the middle alumina powder layer can provide good flame-retardant and fireproof performance, the alumina powder is pressed and fixed through the two layers of films, and then the upper layer and the lower layer of glass fibers are compounded, so that the glass fibers have good mechanical performance and also have higher flame-retardant and fireproof performance. The aluminium foil layer sets up the most inboard at fire-retardant layer, and when the cable burning, the aluminium foil layer can carry out separation and reflection to the heat in the outside like this, further protects inboard insulated wire.
The armor layer 10 is interlocking armor. The outer sheath 11 is made of low-smoke halogen-free polyolefin material. The outside of cable forms good fire-retardant fire resistance through the combination of lapping layer 6, carbon fiber tape layer 7, fire-retardant layer 8, glass fiber tape layer 9, armor 10 and oversheath 11.
The fire-resistant cable greatly improves the fire-resistant grade of the cable through the combination of the fire-resistant materials of all parts, and can ensure that the working time of the cable is longer in a fire disaster; the flame-retardant filling rope is filled in the middle, so that the flame-retardant performance and the overall cable strength are ensured, and the aluminum oxide powder filler on the outer side of the insulated conductor can effectively protect the insulated conductor on the inner side and improve the fireproof performance of the insulated conductor; the flame-retardant layer with unique design ensures that the fire resistance is improved and the cable strength is higher by the combination of the alumina powder and the glass fiber.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment without departing from the technical scope of the present invention, but all the modifications, equivalent substitutions, and improvements made to the above embodiments within the spirit and principle of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. A fire resistant cable, characterized by: contain a plurality of insulated wire, fire-resistant filler, around covering, carbon fiber tape layer, fire-retardant layer, glass fiber tape layer, armor and oversheath, a plurality of insulated wire syntropy hank into the cable core, fire-resistant filler is filled in the outside clearance of a plurality of insulated wire, around the covering in the cable core outside, carbon fiber tape layer, fire-retardant layer, glass fiber tape layer, armor and oversheath set gradually in the outside around the covering from inside to outside.
2. A fire resistant cable according to claim 1, wherein: the insulated wire comprises a wire, a mica wrapping tape and an insulating layer, wherein the mica wrapping tape is wrapped on the outer side of the wire, and the insulating layer is extruded on the outer side of the mica wrapping tape.
3. A fire resistant cable according to claim 1, wherein: and the gaps among the twisted insulated conductors are filled with flame-retardant filling ropes.
4. A fire resistant cable according to claim 1, wherein: the refractory filler is alumina powder.
5. A fire resistant cable according to claim 1, wherein: the wrapping layer is made of fire-resistant mica tapes.
6. A fire resistant cable according to claim 1, wherein: the flame retardant coating comprises a middle alumina powder layer, an upper side film, an upper side glass fiber layer, a lower side film, a lower side glass fiber layer and a lower side aluminum foil layer, wherein the upper side glass fiber layer is arranged on the upper side of the middle alumina powder layer, the upper side film is arranged on the upper side of the upper side glass fiber layer, the lower side glass fiber layer is arranged on the lower side of the middle alumina powder layer, the lower side film is arranged on the lower side of the lower side glass fiber layer, and the lower side aluminum foil layer is arranged on the lower side of the lower.
7. A fire resistant cable according to claim 6, wherein: and all the layers of the flame-retardant layer are bonded through an adhesive.
8. A fire resistant cable according to claim 1, wherein: the armor layer adopts interlocking armor.
9. A fire resistant cable according to claim 1, wherein: the outer sheath is made of low-smoke halogen-free polyolefin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022295369.3U CN213459184U (en) | 2020-10-15 | 2020-10-15 | Fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022295369.3U CN213459184U (en) | 2020-10-15 | 2020-10-15 | Fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213459184U true CN213459184U (en) | 2021-06-15 |
Family
ID=76292105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022295369.3U Expired - Fee Related CN213459184U (en) | 2020-10-15 | 2020-10-15 | Fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213459184U (en) |
-
2020
- 2020-10-15 CN CN202022295369.3U patent/CN213459184U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210615 Termination date: 20211015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |