CN211376238U - Stainless steel strip armored fireproof cable - Google Patents
Stainless steel strip armored fireproof cable Download PDFInfo
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- CN211376238U CN211376238U CN201922329775.4U CN201922329775U CN211376238U CN 211376238 U CN211376238 U CN 211376238U CN 201922329775 U CN201922329775 U CN 201922329775U CN 211376238 U CN211376238 U CN 211376238U
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Abstract
The utility model discloses a stainless steel strip armor fireproof cable, the cable core comprises a cable core, the cable core form by the transposition of a double-core fire prevention insulated core of inside conductor longitudinal arrangement, a double-core fire prevention insulated core of inside conductor transverse arrangement and two fire-retardant packing ropes, wrap high fire-retardant area around the package behind the cable core outer crowded package fire prevention mud, wrap first compound aluminium foil modified glass fiber cloth outside high fire-retardant area, wrap high fire-retardant interior sheath outside compound aluminium foil modified glass fiber cloth, wrap second compound aluminium foil modified glass fiber cloth outside high fire-retardant interior sheath, at the outer cladding stainless steel strip interlocking armor sheath of the compound aluminium foil modified glass fiber cloth of second. The cable has the advantages of good flexibility, no smoke and no toxicity during combustion, high overload capacity, corrosion resistance, good shielding performance, good safety, long service life, high temperature resistance, difficult aging, good economy and the like.
Description
Technical Field
The utility model belongs to the technical field of the power cable and specifically relates to indicate a stainless steel strip armor fireproof cable.
Background
At present, with the development of society, the demand of cables is continuously rising, people have higher and higher requirements on the cables, particularly in the environment of fireproof cables, when the cables are under the action of external stress, internal leads of the cables are easy to displace, the local temperature of the cables is too high, and the communication effect of the cables is influenced; the existing cable is poor in fire-resistant and flame-retardant effect, in the working process of the cable, the cable can burn when exposed fire or the temperature of the cable is too high and natural, the current-carrying capacity of the cable is reduced, a plastic pipe or an iron pipe needs to be penetrated by the cable sometimes, the plastic pipe is easy to age and become brittle, and the iron pipe is easy to rust.
Likewise, a fire can burn out the integrated wiring system, interrupting network transmission. Meanwhile, if the cable generates a large amount of toxic gas and smoke dust in the combustion process, the escape of people is greatly affected, and even the cable becomes a potential safety hazard. Therefore, engineers in various countries are tightening research on more secure fire cables for data backup and personnel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a stainless steel strip armor fireproof cable is provided, have that flexibility is good, smokeless nontoxic, overload capacity is big, corrosion-resistant, shielding property is good, the security is good long service life, high temperature resistant is difficult for ageing, economic nature performance such as good when burning.
A stainless steel strip armor fireproof cable, the cable core comprises a cable core, the cable core form by the transposition of a double-core fire prevention insulated core of inside conductor longitudinal arrangement, a double-core fire prevention insulated core of inside conductor transverse arrangement and two fire-retardant filler ropes, wrap high fire-retardant area around the package behind the crowded package fire prevention mud outside the cable core, wrap first compound aluminium foil modified glass fiber cloth outside high fire-retardant outband, wrap high fire-retardant interior sheath outside compound aluminium foil modified glass fiber cloth, wrap second compound aluminium foil modified glass fiber cloth outside high fire-retardant interior sheath, at the outer cladding stainless steel strip interlocking armor sheath of second compound aluminium foil modified glass fiber cloth.
The double-core fireproof insulated wire core is further improved and composed of two copper conductors and a lapping mica tape which is overlapped outside the two copper conductors.
In a further improvement, the high flame-retardant belt is a high flame-retardant glass fiber belt.
The first composite aluminum foil modified glass fiber cloth is formed by sequentially arranging an aluminum foil film, a PVC (polyvinyl chloride) base material, a polyester film and glass fiber cloth from top to bottom, and the aluminum foil film, the PVC base material, the polyester film and the glass fiber cloth are compounded through hot melt adhesive.
The improved high flame-retardant inner protection layer is a ceramic polyolefin flame-retardant fire-resistant oxygen-isolating layer.
In a further improvement, the second composite aluminum foil modified glass fiber cloth is formed by gluing and compounding an aluminum foil film and glass fiber cloth.
The beneficial effects of the utility model reside in that:
the stainless steel strip armored fireproof cable not only meets the power-on requirement, but also has the performances of good flexibility, no smoke and no toxicity during combustion, large overload capacity, corrosion resistance, good shielding performance, good safety, long service life, high temperature resistance, difficult aging, good economy and the like; therefore, the cable is used in the field of important electrical engineering, such as dangerous areas, airports, oil depots, liquefied gas stations, chemical engineering, coal mines, (nuclear) power stations, steel smelting, shipbuilding and the like, advanced important public facilities, such as satellite ground stations, railway wiring, alarming, fire fighting and the like, places for ensuring personal and property safety, such as historic buildings, hotels and restaurants, high-rise buildings, museums, libraries, banks, hospitals, insurance, markets, scientific research institutions and the like, and can be used forever once laid.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of a first composite aluminum foil modified fiberglass cloth;
fig. 3 is a schematic structural diagram of a second composite aluminum foil modified fiberglass cloth.
Detailed Description
As shown in fig. 1, the stainless steel strip armored fireproof cable of the present invention comprises a cable core, wherein the cable core is formed by twisting a double-core fireproof insulating wire core with a longitudinal arrangement of an inner conductor, a double-core fireproof insulating wire core with a transverse arrangement of an inner conductor and two flame retardant filler ropes 9, and the double-core fireproof insulating wire core is formed by two copper conductors 1 and a wrapping mica tape 2 which is overlapped outside the two copper conductors; after the cable core is extruded with the fireproof mud 3, the cable core is wrapped with the high flame-retardant tape 4, in particular the high flame-retardant glass fiber tape, so that the cable has the advantages of strong permeability, fire resistance, flame retardance, corrosion resistance, aging resistance, weather resistance, smooth appearance, high strength, low density, high temperature resistance, good insulativity and good heat insulation effect, the high temperature resistance reaches 800 ℃, and the temperature instantly reaches 1000 ℃; wrapping a first composite aluminum foil modified glass fiber cloth 5 outside a high-flame-retardant belt, extruding a high-flame-retardant inner protective layer 6, specifically a ceramic polyolefin flame-retardant fire-resistant oxygen-insulating layer, outside the composite aluminum foil modified glass fiber cloth, wherein the dielectric strength is more than or equal to 25MV/m at normal temperature, and the volume resistivity is more than or equal to 2 multiplied by 1014 omega-cm; uniform micropores can be generated on the section of the hard armor after ablation, the dielectric strength of the ceramic armor is more than 40KV/mm, and the volume resistivity is more than 2 x 1018 omega cm; excellent flame retardancy and fire resistance: the incrustation speed is high, the incrustation is very hard and compact, the vertical self-extinguishing can be realized, the flame retardant grade can reach VW-1 grade, the incrustation is not melted, dropped or dropped under the conditions of flame at 350-1600 ℃ and no flame, a secondary fire can not be caused, a hard ceramic armor body can be fired, and the ceramic armor body fired at higher temperature for longer time is harder; the residue is ceramic inorganic matter, and the residual content is more than 85 percent; the ceramic armor body can form honeycomb fine micropores in the sintering process, and good fire, heat and temperature insulation effects can be achieved; and a second composite aluminum foil modified glass fiber cloth 7 is wrapped outside the high-flame-retardant inner protective layer, and a stainless steel band interlocking armor protective sleeve 8 is wrapped outside the second composite aluminum foil modified glass fiber cloth.
As shown in fig. 2, the first composite aluminum foil modified glass fiber cloth 5 is formed by sequentially arranging an aluminum foil film 21, a PVC base material 52, a polyester film 53 and a glass fiber cloth 54 from top to bottom, and the four are compounded by hot melt adhesive, wherein the width is 1000 +/-10 (mm), the thickness is 0.2 +/-0.02 (mm), and the temperature resistance is less than or equal to 600 ℃; tearing strength: warp direction >100N, weft direction > 100N; tensile breaking strength: the warp dry state is more than 650N, and the weft dry state is more than 650N; resistance to penetration by radiant heat: the temperature rise of the inner surface reaches 24 ℃ for more than 60 s; bending resistance: warp breaks > 500N; and a weft break of 500N.
As shown in fig. 3, the second composite aluminum foil modified glass fiber cloth 7 is formed by gluing and compounding an aluminum foil film 71 and a glass fiber cloth 72, and has flame retardant, corrosion resistant and heat insulating effects.
Through the improvement, the fireproof cable has excellent fireproof performance, the fireproof grade not only meets 950 ℃ of national standard gb12666.6a and 90min, but also meets 650 ℃ of a grade specified in British bs6387-1994 for 3 h; b grade 7500 ℃ for 3 h; c, the requirement of 3h at 950 ℃; meanwhile, the fuel can resist water spray and mechanical impact in combustion; the continuous length is long, whether a single-core cable or a multi-core cable is adopted, the length of the cable can meet the requirement of power supply length, and the root length can reach 1000 m; the cross section is large, and the cross section of the single-core cable can reach 1000mm2The section of the multi-core cable can reach 240mm2(ii) a The cable is flexible, the cable can be coiled on the cable coil, the bending radius of the cable is less than or equal to 20d, (d is the outer diameter of the cable)) is smokeless and nontoxic when being combusted, inorganic materials (incombustible bodies) are adopted for insulation, no harmful gas is generated when being combusted, no pollution is generated for 2 times, and the cable is an environment-friendly product; the overload capacity is large, and the cable not only has large current-carrying capacity, but also has large overload capacity; according to wiring requirements, the surface temperature of the cable is usually less than or equal to 70 ℃, and if the wiring is not touchable and is not contacted with combustible building materials, the temperature of a cable sheath can be increased to 105 ℃; the long-term working temperature of the fireproof cable can reach 250 ℃ during overload; the organic insulation fire-resistant cable is corrosion-resistant, a plastic pipe or an iron pipe needs to be penetrated sometimes, the plastic pipe is easy to age and become brittle, the iron pipe is easy to rust, the fire-resistant cable is provided with a stainless steel sheath which does not need to penetrate, and the corrosion resistance of the stainless steel sheath is good; the electromagnetic interference is avoided, and when the fireproof cable and the information and control wires are laid in the same vertical shaft, the interference on the signals and the information transmitted by the control wires and cables can be avoided under the shielding of the stainless steel sheath; the safety is good, and the fireproof cable can normally supply power in flameThe fire extinguishing equipment is moved, the fire loss is reduced, the safety to human bodies is particularly reliable, the service life is long, the inorganic composite flame-retardant insulating material has high temperature resistance and is not easy to age, the service life of the inorganic composite flame-retardant insulating material is many times longer than that of an organic insulating cable, and the service life of the inorganic composite flame-retardant insulating material can be equal to that of a building under a normal working state; the transportation and installation of the flexible fireproof cable comprise that the installation accessories are similar to common cables, and are simpler; the flexible fireproof cable is good in economy, the manufacturing process is advanced, the installation is simple, and the comprehensive cost of the flexible fireproof cable is obviously lower than that of a mineral insulated cable under the same condition.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention. The components not specified in this embodiment can be implemented by the prior art.
Claims (6)
1. The utility model provides a stainless steel strip armor fireproof cable which characterized in that: the cable core is formed by twisting a double-core fireproof insulating wire core longitudinally arranged by an inner conductor, a double-core fireproof insulating wire core transversely arranged by an inner conductor and two flame-retardant filling ropes, wrapping a high flame-retardant belt after the cable core is wrapped with fire-retardant mud in an extruding way, wrapping a first composite aluminum foil modified glass fiber cloth outside the high flame-retardant belt, wrapping a high-flame-retardant inner protective layer outside the composite aluminum foil modified glass fiber cloth in an extruding way, wrapping a second composite aluminum foil modified glass fiber cloth outside the high-flame-retardant inner protective layer, and wrapping a stainless steel belt interlocking armor sheath outside the second composite aluminum foil modified glass fiber cloth.
2. The stainless steel strip-armored fireproof cable of claim 1, wherein: the double-core fireproof insulated wire core is formed by two copper conductors and a lapping mica tape which is overlapped outside the two copper conductors.
3. The stainless steel strip-armored fireproof cable of claim 1, wherein: the high flame-retardant belt is a high flame-retardant glass fiber belt.
4. The stainless steel strip-armored fireproof cable of claim 1, wherein: the first composite aluminum foil modified glass fiber cloth is formed by sequentially arranging an aluminum foil film, a PVC (polyvinyl chloride) substrate, a polyester film and glass fiber cloth from top to bottom, and the aluminum foil film, the PVC substrate, the polyester film and the glass fiber cloth are compounded through hot melt adhesive.
5. The stainless steel strip-armored fireproof cable of claim 1, wherein: the high flame-retardant inner protection layer is a ceramic polyolefin flame-retardant fire-resistant oxygen-isolating layer.
6. The stainless steel strip-armored fireproof cable of claim 1, wherein: the second composite aluminum foil modified glass fiber cloth is formed by bonding and compounding an aluminum foil film and glass fiber cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922329775.4U CN211376238U (en) | 2019-12-23 | 2019-12-23 | Stainless steel strip armored fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922329775.4U CN211376238U (en) | 2019-12-23 | 2019-12-23 | Stainless steel strip armored fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211376238U true CN211376238U (en) | 2020-08-28 |
Family
ID=72173341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922329775.4U Active CN211376238U (en) | 2019-12-23 | 2019-12-23 | Stainless steel strip armored fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211376238U (en) |
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2019
- 2019-12-23 CN CN201922329775.4U patent/CN211376238U/en active Active
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