CN203038702U - Flexible fireproof cable - Google Patents
Flexible fireproof cable Download PDFInfo
- Publication number
- CN203038702U CN203038702U CN 201220717658 CN201220717658U CN203038702U CN 203038702 U CN203038702 U CN 203038702U CN 201220717658 CN201220717658 CN 201220717658 CN 201220717658 U CN201220717658 U CN 201220717658U CN 203038702 U CN203038702 U CN 203038702U
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- fire
- cable
- insulation
- resistant flexible
- conductor
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Abstract
The utility model provides a flexible fireproof cable. A cable core, a fireproof insulation layer and a sheath are arranged from inside to outside to form a composite layered structure. The cable core is formed by wrapping an insulation and protection layer on the outer surface of a conductor. The insulation and protection layer is formed by flatly and compactly wrapping a fireproof mica tape insulation layer on the conductor and by overlappingly and compactly wrapping a ceramic fireproof composite tape layer outside the mica tape. The mica tape and the ceramic fireproof tape are arranged to form the insulation and protection layer, thus the cable has an excellent fireproof performance of the traditional mineral insulation fireproof cable and the mica insulation layer which is not easy to fall off, thus the insulation stability is improved.
Description
Technical field
The utility model relates to a kind of construction of cable, particularly a kind of fire resistant flexible fire-resisting cable structure.
Background technology
The mineral insulation fire-resisting cable has very high serviceability temperature, after catching fire, still can keep the long duration to continue power supply, but exist voltage withstand class low, make comparatively complexity, cost involves great expense, and be subjected to the undergauge stretch limit, not only the cable specification is restricted, and because cable bending property difference causes factory length shorter, needs constantly to use joint in the process of installation, increase material and cost of labor, inefficiency.
The wrapped fire-resisting cable of traditional mica tape has improved above-mentioned shortcoming, but because there being organic material layer, its deficiency is: cable can not bear high temperature, so this type of cable generally can only use below 200 ℃; Secondly after meeting fire burns, organic material is burnt mistake, can cause the cable internal structure loosening and be loose unstable, even cause the fragmentation of mica insulation layer, and function of supplying power is normally used in very fast forfeiture, so reliability is still waiting to improve.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of fire resistant flexible fire-resisting cable, constitutes the double overcoat of insulation by mica tape+fire-resistant band of ceramic chemoprevention fire is set, and makes cable can bear high temperature, has improved the reliability of cable.
The utility model is achieved in that a kind of fire resistant flexible fire-resisting cable, by cable core, fire lagging and sheath from-inner-to-outer the straticulate structure that forms is set, described cable core is held concurrently by an insulation, and overcoat is wrapped to be formed at the conductor outer surface, it is characterized in that: the described insulation overcoat of holding concurrently is the wrapped fire-resistant isinglass belt insulating barrier of smooth densification on conductor, and at the fire-resistant compound belt of the wrapped ceramic chemoprevention fire of the outside overlapping densification of mica tape.
Wherein, when described cable core has a plurality ofly, described fire lagging is with interior and also be provided with obturator between each cable core.Described conductor is single core annealed copper conductor or twisted copper conductors.Described obturator is inorganic high flame retardant type glass rope.Described fire lagging is the glass fibre belt of the wrapped inorganic high flame retardant type of overlapping densification.Described sheath is copper sheath, and this copper sheath adopts the vertical bag of copper strips embossing sealing argon arc to be welded.Described copper sheath extrudes the universal cordage outer jacket outward again.
Advantage of the present utility model is: the utility model constitutes the double overcoat of insulation by mica tape+fire-resistant band of ceramic chemoprevention fire is set, the fire-resistant composite band of pottery chemoprevention fire begins hardening under 350 ℃ and above flame or nonflame condition, reach as high as 3000 ℃, the hard complete housing of formation ceramic-like is attached on the mica tape along with temperature raises rapidly, mica tape is played a very good protection, ensure circuit safe and smooth under fire condition; Use inorganic high flame retardant glass fiber tape mineral wool separator in addition, fill inorganic high flame retardant glass cord between cable core, restrictive coating adopts the vertical bag of copper strips embossing sealing argon arc to be welded.Make cable not only possess the outstanding fire protecting performance of traditional mineral insulation fire-resisting cable but also mica insulation layer difficult drop-off by above-mentioned process, improved the stability of insulation, thereby reduced much the surge voltage that the frequent starting because of inductance, frequency conversion electrical equipment causes, the corresponding line system that makes improves useful life greatly; Adopt traditional cable structures such as ripe twisted wire, stranding to make cable more soft, can produce according to the customer requirements fixed length, not only reduced the joint cost, conveniently installed and lay, more improved and realized whole consistency of circuit; The copper sheath that adopts the vertical bag of copper strips embossing sealing argon arc to be welded not only makes the bending property of cable improve greatly also effectively to have isolated external flame to prolong to fire to cable inside, strengthened the fireproofing of cable performance.
Description of drawings
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the structural representation of the utility model fire resistant flexible fire-resisting cable one embodiment.
Fig. 2 is the hold concurrently structural representation of overcoat of the insulation of the utility model fire resistant flexible fire-resisting cable.
Fig. 3 is the structural representation of another embodiment of the utility model fire resistant flexible fire-resisting cable.
Embodiment
Embodiment one
See also shown in Figure 1, the fire resistant flexible fire-resisting cable of present embodiment, the straticulate structure that is formed by a cable core 1, fire lagging 2 and sheath 3 from-inner-to-outer settings, described cable core 1 is held concurrently by an insulation, and overcoat 11 is wrapped to be formed at conductor 12 outer surfaces, as shown in Figure 2, hold concurrently overcoat 11 of described insulation is the wrapped fire-resistant isinglass belt insulating barrier 111 of smooth densification on conductor 12, and at the fire-resistant compound belt 112 of the wrapped ceramic chemoprevention fire of mica tape insulating barrier 111 outside overlapping densifications.
Embodiment two
As shown in Figure 3, the fire resistant flexible fire-resisting cable of present embodiment is compared with embodiment one, and cable core 1 has many, therefore for guaranteeing the solid of fire resistant flexible fire-resisting cable, and can be at described fire lagging 2 with interior and between each cable core 1, obturator 4 is set.All the other structures are identical with embodiment one.
Wherein, conductor 12 described in the utility model is single core annealed copper conductor or twisted copper conductors.Described obturator 4 is inorganic high flame retardant type glass rope.Described fire lagging 2 is the glass fibre belt of the wrapped inorganic high flame retardant type of overlapping densification.Described sheath 3 is copper sheath, and this copper sheath adopts the vertical bag of copper strips embossing sealing argon arc to be welded.Described copper sheath extrudes universal cordage outer jacket 5 outward again.
The utility model constitutes the double overcoat of insulation by mica tape+fire-resistant band of ceramic chemoprevention fire is set, the fire-resistant composite band of pottery chemoprevention fire begins hardening under 350 ℃ and above flame or nonflame condition, reach as high as 3000 ℃, the hard complete housing of formation ceramic-like is attached on the mica tape along with temperature raises rapidly, mica tape is played a very good protection, ensure circuit safe and smooth under fire condition; Use inorganic high flame retardant glass fiber tape mineral wool separator in addition, fill inorganic high flame retardant glass cord between cable core, restrictive coating adopts the vertical bag of copper strips embossing sealing argon arc to be welded.Make cable not only possess the outstanding fire protecting performance of traditional mineral insulation fire-resisting cable but also mica insulation layer difficult drop-off by above-mentioned process, improved the stability of insulation, thereby reduced much the surge voltage that the frequent starting because of inductance, frequency conversion electrical equipment causes, the corresponding line system that makes improves useful life greatly; Adopt traditional cable structures such as ripe twisted wire, stranding to make cable more soft, can produce according to the customer requirements fixed length, not only reduced the joint cost, conveniently installed and lay, more improved and realized whole consistency of circuit; The copper sheath that adopts the vertical bag of copper strips embossing sealing argon arc to be welded not only makes the bending property of cable improve greatly also effectively to have isolated external flame to prolong to fire to cable inside, strengthened the fireproofing of cable performance, also can be used for ground connection, shielding electromagnetic wave, strengthen the interference free performance of cable.
In addition, the utility model cable all adopts Halogen, inorganic environment-friendly material such as fire-retardant, fire-resistant, by compound insulated fireproof overcoat and the design of embossing copper sheath, make cable have excellent fireproof performance, excellent flexibility, have simple in structure, the characteristic that performance is outstanding.
Though more than described embodiment of the present utility model; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present utility model; those of ordinary skill in the art are in modification and the variation of the equivalence of doing according to spirit of the present utility model, all should be encompassed in the scope that claim of the present utility model protects.
Claims (7)
1. fire resistant flexible fire-resisting cable, by cable core, fire lagging and sheath from-inner-to-outer the straticulate structure that forms is set, described cable core is held concurrently by an insulation, and overcoat is wrapped to be formed at the conductor outer surface, it is characterized in that: the described insulation overcoat of holding concurrently is the wrapped fire-resistant isinglass belt insulating barrier of smooth densification on conductor, and at the fire-resistant compound belt of the wrapped ceramic chemoprevention fire of the outside overlapping densification of mica tape.
2. a kind of fire resistant flexible fire-resisting cable as claimed in claim 1, it is characterized in that: described cable core has a plurality of, and described fire lagging is with interior and be provided with obturator between each cable core.
3. a kind of fire resistant flexible fire-resisting cable as claimed in claim 1 or 2, it is characterized in that: described conductor is single core annealed copper conductor or twisted copper conductors.
4. a kind of fire resistant flexible fire-resisting cable as claimed in claim 1 or 2, it is characterized in that: described obturator is inorganic high flame retardant type glass rope.
5. a kind of fire resistant flexible fire-resisting cable as claimed in claim 1 or 2, it is characterized in that: described fire lagging is the glass fibre belt of the wrapped inorganic high flame retardant type of overlapping densification.
6. a kind of fire resistant flexible fire-resisting cable as claimed in claim 1 or 2, it is characterized in that: described sheath is copper sheath, and this copper sheath adopts the vertical bag of copper strips embossing sealing argon arc to be welded.
7. a kind of fire resistant flexible fire-resisting cable as claimed in claim 6, it is characterized in that: described copper sheath extrudes the universal cordage outer jacket outward again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717658 CN203038702U (en) | 2012-12-21 | 2012-12-21 | Flexible fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220717658 CN203038702U (en) | 2012-12-21 | 2012-12-21 | Flexible fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203038702U true CN203038702U (en) | 2013-07-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220717658 Expired - Fee Related CN203038702U (en) | 2012-12-21 | 2012-12-21 | Flexible fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203038702U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931741A (en) * | 2016-04-27 | 2016-09-07 | 丹阳正联知识产权运营管理有限公司 | Heat-insulation mica insulation metal protection fireproof cable |
| CN105931698A (en) * | 2016-05-10 | 2016-09-07 | 大连华瑞电线电缆制造有限公司 | Environmental protection flexible fireproof cable and preparation method thereof |
| CN106571192A (en) * | 2016-11-11 | 2017-04-19 | 惠州市金龙羽电缆实业发展有限公司 | Conductor preformation fireproof type cable and preparation method thereof |
| CN112037972A (en) * | 2020-08-04 | 2020-12-04 | 远东电缆有限公司 | A-level flexible fireproof cable with combustion performance and preparation process thereof |
| CN114446533A (en) * | 2022-03-21 | 2022-05-06 | 河南乐山电缆有限公司 | Rat-proof and ant-proof mineral insulated fireproof cable and preparation method thereof |
-
2012
- 2012-12-21 CN CN 201220717658 patent/CN203038702U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931741A (en) * | 2016-04-27 | 2016-09-07 | 丹阳正联知识产权运营管理有限公司 | Heat-insulation mica insulation metal protection fireproof cable |
| CN105931698A (en) * | 2016-05-10 | 2016-09-07 | 大连华瑞电线电缆制造有限公司 | Environmental protection flexible fireproof cable and preparation method thereof |
| CN106571192A (en) * | 2016-11-11 | 2017-04-19 | 惠州市金龙羽电缆实业发展有限公司 | Conductor preformation fireproof type cable and preparation method thereof |
| CN112037972A (en) * | 2020-08-04 | 2020-12-04 | 远东电缆有限公司 | A-level flexible fireproof cable with combustion performance and preparation process thereof |
| CN112037972B (en) * | 2020-08-04 | 2022-07-12 | 远东电缆有限公司 | A-level flexible fireproof cable with combustion performance and preparation process thereof |
| CN114446533A (en) * | 2022-03-21 | 2022-05-06 | 河南乐山电缆有限公司 | Rat-proof and ant-proof mineral insulated fireproof cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130703 Termination date: 20161221 |