CN114242307B - Waterproof, fireproof and rat-proof composite cable - Google Patents
Waterproof, fireproof and rat-proof composite cable Download PDFInfo
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- CN114242307B CN114242307B CN202111497560.9A CN202111497560A CN114242307B CN 114242307 B CN114242307 B CN 114242307B CN 202111497560 A CN202111497560 A CN 202111497560A CN 114242307 B CN114242307 B CN 114242307B
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- fireproof
- flame
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- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 239000003063 flame retardant Substances 0.000 claims abstract description 60
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000000919 ceramic Substances 0.000 claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 239000000779 smoke Substances 0.000 claims abstract description 25
- 229920000098 polyolefin Polymers 0.000 claims abstract description 24
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 239000004698 Polyethylene Substances 0.000 claims abstract description 15
- -1 polyethylene Polymers 0.000 claims abstract description 15
- 229920000573 polyethylene Polymers 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910001335 Galvanized steel Inorganic materials 0.000 claims abstract description 11
- 241000256602 Isoptera Species 0.000 claims abstract description 11
- 239000008397 galvanized steel Substances 0.000 claims abstract description 11
- 239000004945 silicone rubber Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims abstract description 7
- 239000004677 Nylon Substances 0.000 claims abstract description 6
- 229920001778 nylon Polymers 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 18
- 238000011049 filling Methods 0.000 claims description 11
- 230000002265 prevention Effects 0.000 claims description 11
- 239000002356 single layer Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 238000007765 extrusion coating Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 3
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims 4
- 238000001125 extrusion Methods 0.000 abstract description 13
- 239000011810 insulating material Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 230000009970 fire resistant effect Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000257303 Hymenoptera Species 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0045—Cable-harnesses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2813—Protection against damage caused by electrical, chemical or water tree deterioration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Abstract
The invention discloses a waterproof fireproof rat-proof and termite-proof composite cable, which comprises a core body positioned at the center of the cable, wherein an anti-drop plate is attached to the outer side of the core body; the method also comprises the following steps: the fireproof silk ribbon is attached and wrapped on the outer side of the anti-falling plate; the polyethylene inner sheath layer is wrapped on the outer side of the flame-retardant water-blocking tape, and galvanized steel tape armor is wrapped on the outer side of the polyethylene inner sheath layer. The waterproof fireproof rat-proof and termite-proof composite cable comprises a power wire core and a control wire core, wherein a tinned copper conductor is adopted as the conductor, a halogen-free low-smoke flame-retardant ceramic polyolefin insulating material is extruded outside the conductor, a fireproof glass ribbon, a flame-retardant water-blocking tape and an extrusion polyethylene inner protection are formed in a cable wrapping mode, a steel tape armor is arranged on the wrapping ceramic silicone rubber wrapping tape, a halogen-free low-smoke flame-retardant polyolefin sheath is extruded outside the cable, a nylon protection reinforcing layer is extruded outside the cable, and the cable has the characteristics of environmental protection, water resistance, fire resistance, rat-proof and termite resistance, and can be widely applied to a circuit system in special environments such as moisture sealing.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a waterproof, fireproof, rat-proof and termite-proof composite cable.
Background
The cable is an electric energy or signal transmission device composed of several or several groups of wires, is one of indispensable articles for production and life along with the development of society, and is emphasized in improving the production quality of the cable because of increasing electric power demand and increasing cable load.
However, the existing cable has the following problems:
1. in some relatively closed environments, because the air fluidity is poor, the air fluidity is generally moist and serious in pollution, and the air fluidity is a place where mice and ants are easy to gather, the cable body is easy to be corroded by the outside, so that the cable body is damaged, and the normal operation of equipment is affected;
2. in addition, in the construction process, sparks are easy to generate due to mechanical friction, and then the situation of fire disaster is easy to occur, harmful gas is generated after the common cable is burnt, and the harmful gas is threatened to the life health of workers after being absorbed by the workers.
So we propose a waterproof, fireproof, rat-proof and termite-proof composite cable in order to solve the above mentioned problems.
Disclosure of Invention
The invention aims to provide a waterproof fireproof rat-proof and termite-proof composite cable, which solves the problems that the existing cable in the market is easy to damage due to external corrosion, normal operation of equipment is affected, harmful gas is easy to generate in a fire disaster, and life health of staff is threatened.
In order to achieve the above purpose, the present invention provides the following technical solutions: a waterproof, fireproof and rat and termite proof composite cable comprises a core body positioned in the center of the cable, wherein an anti-falling plate is attached to the outer side of the core body;
the method also comprises the following steps:
the fireproof silk ribbon is attached and wrapped on the outer side of the anti-drop plate, and the outer side of the fireproof silk ribbon is wrapped with a flame-retardant waterproof wrapping tape, so that the effects of fire prevention, flame retardance and water prevention of the cable body are achieved;
the polyethylene inner sheath layer is wrapped on the outer side of the flame-retardant water-blocking wrapping tape, and the outer side of the polyethylene inner sheath layer is wrapped with galvanized steel tape armor, so that the polyethylene has good water resistance and extremely low water permeability, and can realize a radial waterproof function;
the low-smoke halogen-free flame-retardant polyolefin sheath is arranged on the outer side of the ceramic silicon rubber wrapping tape, and the ceramic silicon rubber wrapping tape is wrapped on the outer side of the galvanized steel tape armor;
the sheath protection reinforcing layer is wrapped on the outer side of the low-smoke halogen-free flame retardant polyolefin sheath so as to improve the overall performance.
Preferably, the core body is composed of a limit column, a tin-plated copper conductor, an insulating layer and a control wire core, the limit column is located in the middle of the core body, the tin-plated copper conductor and the insulating layer are respectively attached to the outer side of the limit column, the control wire core is filled between the power wire cores, a halogen-free flame-retardant filling rope capable of keeping a cable round is filled in the core body, and the cable twisting pitch diameter ratio of the halogen-free flame-retardant filling rope is 25-30.
Through adopting above-mentioned technical scheme, utilize the fire-retardant filling rope of no halogen to keep the cable round, further improve the fire behaviour of cable, control sinle silk is placed between the power sinle silk as the filler strip simultaneously and is stranded, can reduce the external diameter of cable, more is favorable to the installation to lay.
Preferably, the internally mounted of spacing post has the strengthening rib that can improve impact resistance, and the outside of spacing post is crisscross to be provided with circular-arc first concave surface and second concave surface to the surface of first concave surface evenly is provided with the non-slipping spur.
Through adopting above-mentioned technical scheme, can improve holistic intensity through the strengthening rib, and utilize first concave surface and second concave surface to prevent to take place the off normal when wrapping, utilize the non slipping spur to improve dislocation prevention effect.
Preferably, the tin-plated copper conductor and the insulating layer arranged in the core body are respectively selected from a high-quality oxygen-free tin-plated copper conductor and a novel low-smoke halogen-free flame-retardant ceramic polyolefin material, and the tin-plated copper conductor is formed by twisting the high-quality oxygen-free tin-plated copper conductor.
By adopting the technical scheme, the low-smoke halogen-free flame-retardant ceramic polyolefin material can form a ceramic-shaped hard shell when a fire disaster occurs, so that the low-smoke halogen-free flame-retardant ceramic polyolefin material has excellent insulating property, flame retardance and fire resistance.
Preferably, the lateral part of anticreep board has seted up first recess and second recess respectively, and first recess and second recess all are the arcuation setting to the equidistant angular distribution in center of anticreep board about the core.
By adopting the technical scheme, the stability of the inside of the core body is further improved, so that the subsequent wrapping operation is facilitated.
Preferably, the fireproof silk ribbon and the flame-retardant waterproof wrapping tape are in a single-layer overlapping wrapping mode, the wrapping covering rate of each layer is more than or equal to 20%, and the fireproof silk ribbon is composed of glass silk ribbon with fireproof performance and rat and termite biting prevention function.
By adopting the technical scheme, the fireproof, waterproof and rat and termite preventing performances of the cable can be effectively improved.
Preferably, the galvanized steel tape armor adopts a double-layer gap covering and wrapping mode, and the wrapping gap rate of each layer is less than or equal to 50%.
Through adopting above-mentioned technical scheme, can effectively avoid the cable to receive when impact, cause the damage to the cable.
Preferably, the ceramic silicone rubber wrapping tape is ceramic silicone rubber wrapping tape with excellent flame retardant and fireproof performance, and the ceramic silicone rubber wrapping tape adopts a single-layer wrapping mode.
By adopting the technical scheme, the material can form a ceramic-shaped hard shell when a fire disaster occurs, thereby playing a very good role in fire isolation, heat insulation and fire blocking.
Preferably, the sheath protection reinforcing layer is made of a novel nylon material, and the sheath protection reinforcing layer and the low-smoke halogen-free flame retardant polyolefin sheath are both made of an extrusion coating process.
By adopting the technical proposal, the utility model has the advantages that, can have better low temperature resistance, heat resistance, wear resistance and chemical resistance.
Compared with the prior art, the invention has the beneficial effects that: the waterproof fireproof rat-proof and termite-proof composite cable comprises a power wire core and a control wire core, wherein a tinned copper conductor is adopted as the conductor, a halogen-free low-smoke flame-retardant ceramic polyolefin insulating material is extruded outside the conductor, a fireproof glass ribbon, a flame-retardant water-blocking tape and an extrusion polyethylene inner protection are formed in a cable wrapping manner, a steel tape armor is wrapped with a ceramic silicone rubber wrapping tape, a halogen-free low-smoke flame-retardant polyolefin sheath is extruded outside the cable, a nylon protection reinforcing layer is extruded outside the cable, the finished cable is enabled to have the characteristics of environmental protection, water resistance, fire resistance, rat-proof and termite resistance, and the cable can be widely applied to a circuit system in special environments such as moisture sealing, and the like, and the waterproof fireproof rat-proof and termite-proof composite cable has the following specific effects:
1. compared with a common fire-resistant cable wrapping fire-resistant layer and a fire-resistant insulating material extrusion coating, the novel low-smoke halogen-free fire-resistant ceramic polyolefin material is adopted as the insulating layer, so that the process flow is reduced, the material consumption is reduced, and the production efficiency is improved; and the novel insulating material has excellent insulating property, flame retardance and fire resistance.
2. The control wire core is used as the filling strip to be placed between the power wire cores for stranding, so that the outer diameter of the cable can be reduced, and the installation and the laying are facilitated.
3. The fireproof silk ribbon and the flame-retardant waterproof wrapping tape which are formed by the glass silk ribbon are in a single-layer overlapping wrapping mode, so that the fireproof, waterproof and rat and termite preventing performances of the cable can be effectively improved.
4. The sheath protection reinforcing layer takes a novel nylon material as an outer layer protection layer of the cable, so that the cable has better low temperature resistance, heat resistance, wear resistance and chemical resistance.
5. The cable has the advantages that the cable is designed to be made of nontoxic and harmless environment-friendly materials, is safe, environment-friendly and excellent in flame retardant property, can not release harmful gas to generate secondary harm to human bodies under the condition of fire disaster, and is beneficial to rescue.
Drawings
FIG. 1 is a schematic view of the present invention in a front cross-section;
FIG. 2 is a schematic illustration of a front cross-sectional structure of a fire-resistant ribbon of the present invention;
FIG. 3 is a schematic illustration of a front cross-sectional structure of a core of the present invention;
FIG. 4 is a schematic side sectional view of a spacing post of the present invention;
FIG. 5 is a schematic side view of the anti-drop plate of the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 3A according to the present invention;
fig. 7 is a schematic side view of a spacing post according to the present invention.
In the figure: 1. a core; 101. a limit column; 1011. reinforcing ribs; 1012. a first concave surface; 1013. an anti-skid block; 1014. a second concave surface; 102. a tin-plated copper conductor; 103. an insulating layer; 104. a control wire core; 105. halogen-free flame-retardant filling ropes; 2. an anti-drop plate; 201. a first groove; 202. a second groove; 3. a fire-resistant ribbon; 4. flame-retardant waterproof belting; 5. a polyethylene inner sheath layer; 6. zinc-plated steel strip armoring; 7. ceramic silicone rubber belting; 8. a low smoke zero halogen flame retardant polyolefin sheath; 9. the sheath protects the reinforcing layer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the present invention provides a technical solution: a waterproof, fireproof and rat and termite proof composite cable comprises a core body 1 positioned in the center of the cable, wherein an anti-falling plate 2 is attached to the outer side of the core body 1; the method also comprises the following steps: the core body 1 consists of a limit column 101, a tinned copper conductor 102, an insulating layer 103 and a control wire core 104, wherein the limit column 101 is positioned in the middle of the core body 1, the tinned copper conductor 102 and the insulating layer 103 are respectively attached to the outer side of the limit column 101, the control wire core 104 is filled between power wire cores, a halogen-free flame-retardant filling rope 105 capable of keeping a round cable is filled in the core body 1, and the cable twisting pitch diameter ratio of the halogen-free flame-retardant filling rope 105 is 25-30; the tin-plated copper conductor 102 and the insulating layer 103 arranged in the core body 1 are respectively selected from a high-quality anaerobic tin-plated copper conductor and a novel low-smoke halogen-free flame-retardant ceramic polyolefin material, and the tin-plated copper conductor 102 is formed by twisting high-quality anaerobic tin-plated copper conductors; the halogen-free flame-retardant filling rope 105 can keep the cable round, the flame retardant property of the cable is further improved, meanwhile, the insulating layer 103 adopts a novel low-smoke halogen-free flame-retardant ceramic polyolefin material, compared with the prior flame-retardant cable wrapping flame-retardant layer and the extrusion coating flame-retardant insulating material, the process flow is reduced, the material consumption is reduced, the production efficiency is improved, and the novel insulating material can form a ceramic hard shell when a fire disaster occurs, so that the novel flame-retardant filling rope has excellent insulating property and excellent flame retardant and fire-retardant property;
the inner part of the limit column 101 is provided with a reinforcing rib 1011 which can improve the impact resistance, the outer side of the limit column 101 is provided with a first arc-shaped concave surface 1012 and a second arc-shaped concave surface 1014 in a staggered way, and the surface of the first concave surface 1012 is uniformly provided with a non-slip block 1013; the side parts of the anti-falling plate 2 are respectively provided with a first groove 201 and a second groove 202, the first groove 201 and the second groove 202 are arranged in an arc shape, and the anti-falling plate 2 is distributed at equal angles relative to the center of the core body 1; the limiting column 101 and the anti-falling plate 2 respectively utilize the first concave 1012 and the second concave 1014 and the first groove 201 and the second groove 202 to realize the limiting action on the inner wire body of the core body 1, so that the position deviation in the subsequent wrapping operation is prevented, and the wrapping effect is improved;
the fireproof silk ribbon 3 is attached and wrapped on the outer side of the anti-falling plate 2, and the outer side of the fireproof silk ribbon 3 is wrapped with a flame-retardant waterproof wrapping tape 4 so as to realize the functions of fire prevention, flame retardance and water prevention of the cable body; the fireproof silk ribbon 3 and the flame-retardant waterproof wrapping tape 4 are in a single-layer overlapping wrapping mode, the wrapping covering rate of each layer is more than or equal to 20%, and the fireproof silk ribbon 3 is composed of glass silk ribbons with fireproof performance and rat and termite biting prevention functions; the fireproof, waterproof, rat and termite resistance of the cable can be effectively improved;
the polyethylene inner sheath layer 5 is wrapped on the outer side of the flame-retardant water-blocking tape 4, and the galvanized steel tape armor 6 is wrapped on the outer side of the polyethylene inner sheath layer 5, so that the polyethylene has good water resistance and extremely low water permeability, and can realize a radial waterproof function; the galvanized steel armors 6 adopt a double-layer gap covering and wrapping mode, and the wrapping gap rate of each layer is less than or equal to 50%; the low-smoke halogen-free flame-retardant polyolefin sheath 8 is arranged on the outer side of the ceramic silicone rubber wrapping tape 7, and the ceramic silicone rubber wrapping tape 7 is wrapped on the outer side of the galvanized steel tape armor 6; the ceramic silicon rubber wrapping tape 7 adopts ceramic silicon rubber wrapping tape with excellent flame retardant and fireproof performance, and the ceramic silicon rubber wrapping tape 7 adopts a single-layer wrapping mode; a sheath protection reinforcing layer 9 which is wrapped on the outer side of the low smoke zero halogen flame retardant polyolefin sheath 8 to improve the overall performance; the low-smoke halogen-free flame-retardant polyolefin sheath 8 is produced by adopting a low-smoke halogen-free extrusion line, the extrusion mode adopts a semi-extrusion pipe type or extrusion type, the temperature of an extruder is controlled according to the plasticizing degree of a material, the average value of the extrusion thickness is not higher than the nominal value, the thinnest point is not less than the nominal value and is not less than 90-0.1 mm, wherein the extrusion die of the low-smoke halogen-free flame-retardant polyolefin sheath 8 adopts an extrusion pipe type, the average value of the thickness of an outer sheath is not less than the nominal value, the sheath reinforcing protective layer 9 is prepared by arranging the material in an oven at 80-110 ℃ for drying for 5-6 h before extrusion, and adopts a separation type screw, the extrusion machine with the length-diameter ratio of 25:1 is adopted for extrusion, the extrusion temperature is between 200-240 ℃, and the ceramic silicon rubber belting 7 can also form a ceramic hard shell in case of fire disaster, thereby playing the roles of very good fire isolation, heat insulation, heat preservation and fire blocking, and fire prevention performances of a cable body are enhanced, so that the waterproof, fireproof and rat-proof tunnel performances are suitable for sealing, underground and environment-friendly places, and the whole cable structure is designed to be used, and harmless, environmental protection materials are harmless, and environmental protection, and the fire-retardant is not harmful and can be released to the human body, and the fire-friendly and the fire-resistant and is excellent.
Working principle: when the waterproof fireproof rat-proof composite cable is used, as shown in fig. 1-7, the conductor used in the core 1 of the cable is a tinned copper conductor 102, a halogen-free low-smoke flame-retardant ceramic polyolefin insulating layer 103 is extruded outside the tinned copper conductor 102, a glass ribbon fireproof ribbon 3, a flame-retardant waterproof tape 4, a polyethylene inner sheath layer 5, a galvanized steel tape armor 6, a ceramic silicone rubber tape 7, a low-smoke halogen-free flame-retardant polyolefin sheath 8 and a novel nylon sheath protection reinforcing layer 9 are extruded outside the cable, so that the finished cable has the characteristics of environmental protection, water resistance, fire resistance, rat resistance and the like, can be widely applied to a circuit system in special environments such as moisture sealing, is a nontoxic and harmless environment-friendly material, is safe, environment-friendly and excellent in flame retardant performance, does not release harmful gas to generate secondary harm to human bodies under the condition of fire, and is beneficial to rescue.
What is not described in detail in this specification is prior art known to those skilled in the art.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (1)
1. The waterproof, fireproof and rat and termite proof composite cable comprises a core body (1) positioned in the center of the cable, wherein an anti-falling plate (2) is attached to the outer side of the core body (1);
it is characterized in that the method also comprises the following steps:
the fireproof silk ribbon (3) is attached and wrapped on the outer side of the anti-falling plate (2), and the outer side of the fireproof silk ribbon (3) is wrapped with a flame-retardant waterproof wrapping tape (4) so as to realize the effects of fire prevention, flame retardance and water prevention of the cable body;
the polyethylene inner sheath layer (5) is wrapped on the outer side of the flame-retardant water-blocking tape (4), and the galvanized steel tape armor (6) is wrapped on the outer side of the polyethylene inner sheath layer (5), so that the polyethylene has good water resistance and extremely low water permeability, and can realize a radial waterproof function;
the low-smoke halogen-free flame-retardant polyolefin sheath (8) is arranged at the outer side of the ceramic silicone rubber wrapping tape (7), and the ceramic silicone rubber wrapping tape (7) is wrapped at the outer side of the galvanized steel tape armor (6);
a sheath protection reinforcing layer (9) which is wrapped on the outer side of the low-smoke halogen-free flame retardant polyolefin sheath (8) so as to improve the overall performance;
the core body (1) consists of a limit column (101), a tin-plated copper conductor (102), an insulating layer (103) and a control wire core (104), wherein the limit column (101) is positioned in the middle of the core body (1), the tin-plated copper conductor (102) and the insulating layer (103) are respectively attached to the outer side of the limit column (101), the control wire core (104) is filled between the power wire cores, a halogen-free flame-retardant filling rope (105) capable of keeping a round cable is filled in the core body (1), and the halogen-free flame-retardant filling rope (105) has a cabling twisting pitch ratio of 25-30;
the inner part of the limit column (101) is provided with a reinforcing rib (1011) capable of improving impact resistance, the outer side of the limit column (101) is provided with a first arc-shaped concave surface (1012) and a second arc-shaped concave surface (1014) in a staggered manner, and the surface of the first concave surface (1012) is uniformly provided with an anti-skid block (1013);
the tin-copper plated conductor (102) and the insulating layer (103) arranged in the core body (1) are respectively selected from a high-quality oxygen-free tin-copper plated conductor and a novel low-smoke halogen-free flame-retardant ceramic polyolefin material, and the tin-copper plated conductor (102) is formed by twisting the high-quality oxygen-free tin-copper plated conductor;
the side part of the anti-falling plate (2) is provided with a first groove (201) and a second groove (202) respectively, the first groove (201) and the second groove (202) are arranged in an arc shape, and the anti-falling plate (2) is distributed at equal angles relative to the center of the core body (1);
the fireproof silk ribbon (3) and the flame-retardant waterproof wrapping tape (4) are in a single-layer overlapping wrapping mode, the wrapping covering rate of each layer is more than or equal to 20%, and the fireproof silk ribbon (3) is composed of glass silk ribbons with fireproof performance and rat and termite biting prevention functions;
the galvanized steel strip armoring (6) adopts a double-layer gap covering and wrapping mode, and the wrapping gap rate of each layer is less than or equal to 50%;
the ceramic silicon rubber wrapping tape (7) is a ceramic silicon rubber wrapping tape with excellent flame retardant and fireproof performances, and the ceramic silicon rubber wrapping tape (7) is in a single-layer wrapping mode;
the sheath protection reinforcing layer (9) is made of novel nylon materials, and the sheath protection reinforcing layer (9) and the low-smoke halogen-free flame-retardant polyolefin sheath (8) are both made of extrusion coating technology.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111497560.9A CN114242307B (en) | 2021-12-09 | 2021-12-09 | Waterproof, fireproof and rat-proof composite cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111497560.9A CN114242307B (en) | 2021-12-09 | 2021-12-09 | Waterproof, fireproof and rat-proof composite cable |
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| Publication Number | Publication Date |
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| CN114242307A CN114242307A (en) | 2022-03-25 |
| CN114242307B true CN114242307B (en) | 2023-10-27 |
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| CN202111497560.9A Active CN114242307B (en) | 2021-12-09 | 2021-12-09 | Waterproof, fireproof and rat-proof composite cable |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117316524B (en) * | 2023-11-29 | 2024-01-26 | 江苏南方通信科技有限公司 | Early warning type fireproof composite optical cable |
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| CN114242307A (en) | 2022-03-25 |
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