CN107993760A - A kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits - Google Patents
A kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits Download PDFInfo
- Publication number
- CN107993760A CN107993760A CN201711197861.3A CN201711197861A CN107993760A CN 107993760 A CN107993760 A CN 107993760A CN 201711197861 A CN201711197861 A CN 201711197861A CN 107993760 A CN107993760 A CN 107993760A
- Authority
- CN
- China
- Prior art keywords
- proof
- core
- parts
- conductor
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- H01B7/17—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
- H01B7/02—Disposition of insulation
- H01B7/0258—Disposition of insulation comprising one or more longitudinal lapped 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
-
- 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
- H01B7/24—Devices affording localised protection against mechanical force or pressure
-
- 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
-
- 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
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Landscapes
- Insulated Conductors (AREA)
Abstract
The present invention relates to a kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits, the cable core being twisted including several power wire cores, control conductor and ground connection core, the outside of cable core is surrounded with fire prevention belting layer, the belting layer that blocks water, liner layer, metal armor layers, oversheath, enhancement layer successively, and filler is equipped between cable core and fire prevention belting layer；Power wire core, control conductor and ground connection core include power wire core conductor, control core conductor, ground connection core respectively, and power wire core conductor, control core conductor, the outside of ground connection core are coated with insulating layer.The present invention can meet railway tunnel intraoral illumination, the safe long-time service needs of control circuit, waterproof, fire prevention, rat-and-ant proof effect can be achieved, at the same it is cheap, it can meet the use needs of railway tunnel light conduits, prolong the service life, greatly improve the safety in utilization of cable.
Description
Technical field
The present invention relates to electric wire field, specifically a kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits.
Background technology
Illuminate and construct the requirement of electric load according to current railway tunnel, and the cable of required laying is substantially in railway tunnel
Following 7 kinds can be divided into：Fixed illumination and construction operation electric consumption on lighting, utilization voltage in tunnel are single-phase 220V；In tunnel
Construction of railways and public affair maintenance mechanical work electricity consumption, utilization voltage are three-phase 380V；Other users outside tunnel, as work area,
The power and electric consumption on lighting of the users such as room, guardroom is patrolled and guarded, utilization voltage is single-phase 220V and three-phase 380V；To consolidating in tunnel
Fixed illumination and construction operation electric consumption on lighting implement the multiparty control of full section or segmentation, a control cable of setting；Used to ensure
Electric safety, implements TN-S protection systems, sets a ground wire；Segmentation is implemented in fixed illumination and construction operation illumination in tunnel
During control, an electric consumption on lighting cable is set；When length of tunnel is in more than 3.5km, it is necessary to power transformer is separately set in tunnel,
The high voltage power cable set.
But when setting up cable along Dong Bi sides in tunnel, the space clear distance of cable is hung for " not fouling of clearance gauge "
It is very limited amount of, when hanging various cables by regulation spacing, can only at most hangs 4~5 cables.Therefore, above-mentioned seven
Root cable just needs to hang or change in Dong Bi both sides by underground laying, can thus considerably increase difficulty of construction, and then increase
Project cost.
It is to be easier that fire, flood and mouse ant occurs in addition, in the environment that this is comparatively closed in railway tunnel
Bite Deng rodents.If there is fire, propagation of flame, non-flame resistant fire safe type cable is destroyed easily in flame,
Can rescue to fire bring great difficulty, and cable insulation, sheath material burn the various harmful of release in flame
Gas, can also damage personnel.And the generation of flood is it will cause cable immersion, into but short circuit and damage cable
Even damage whole circuit.And biting for mouse ant, cable can be directly injured, causes Circuit Interrupt.
The content of the invention
In order to avoid proposing a kind of railway tunnel fire-proof and water-proof rat-and-ant proof illumination with solution above-mentioned technical problem, the present invention
Cable.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits, including several power wire cores, control conductor and ground connection
The cable core that core is twisted, the outside of the cable core are surrounded with fire prevention belting layer, the belting layer that blocks water, liner successively from inside to outside
Layer, metal armor layers, oversheath, enhancement layer, filler is equipped between the cable core and fire prevention belting layer.
The power wire core, control conductor and ground connection core include power wire core conductor, control core conductor, ground connection respectively
Core, the power wire core conductor, control core conductor, the outside of ground connection core are coated with insulating layer.
As a further improvement on the present invention, the power wire core conductor, control core conductor, ground wire conductor are 1
The solid copper conductor of class or 2 similar rounds press any of copper conductor.
As a further improvement on the present invention, the fire prevention belting layer wrapped forms for glass tape is overlapping.Glass tape
Not only there is the performance of fire protection flame retarding, moreover it is possible to absorb moisture and play the role of waterproof and block water, and glass material can also effectively be prevented
Only biting for the carious tooth such as mouse ant class animal plays the role of effective rat-and-ant proof.
As a further improvement on the present invention, the band that blocks water is flame retardant type waterstop.It both has the waterproof that blocks water
Function, it may have certain fire-retardant fireproof function.
As a further improvement on the present invention, the liner layer is made of polythene material.Using internal with the band that blocks water
Layer, the outer polythene material using squash type extrusion do liner layer, effectively moisture can be prevented to immerse, and realize the work(of waterproof
Energy.
As a further improvement on the present invention, the metal armor layers are made of galvanized steel strip.Outside the cable core of cable
Wrapped one layer of glass tape, while the zinc-plated steel-tape armouring of wrapped bilayer, cable outermost layer are new using extrusion forming outside liner layer
Type nylon realizes multilayer proofing, makes it have good Corrosion Protection and certain resistance to compression effect as enhancement layer.
As a further improvement on the present invention, the oversheath uses LSOH anti-flaming ceramic polyolefine material system
Into.Existing ceramic material-Ceramic silicon rubber, its fireproof performance are also very superior, but since its is high
Cost, special extrusion equipment, all widely use it larger restriction effect, and Ceramic silicon rubber after the extrusion its
Mechanical performance is poor.The present invention is on the basis of original low-smoke halogen-free polyolefin, from new addition raw material, rational allocation each group
Part, low-smoke halogen-free polyolefin is also provided with the case of flame combustion and ceramic change occurs, while take into account low smoke and zero halogen
The performance of polyolefin.
As a further improvement on the present invention, the enhancement layer is made of novel flame-retardant nylon material, the new resistance
Combustion nylon material includes the component of following weight：65-75 parts of long-chain nylon, 5-10 parts of maleic anhydride grafts compatilizer, trimerization
5-10 points of cyanamide phosphate, 5-10 parts of microencapsulated powder oil, 5-10 parts of boron modified phenolic resin.
As a further improvement on the present invention, the insulating layer is exhausted for the LSOH anti-flaming ceramic polyolefin of environment-friendly type
Edge material is made and includes the component of following weight with fireprotection layer effect, the insulating layer：Ethylene-vinyl acetate copolymer
45-55 parts, 50-60 parts of ethene-alpha-olefin copolymer, 6-12 parts of high-density polyethylene resin, maleic anhydride grafting it is amorphous poly-
5-9 parts of alkene, 35-55 parts of mica powder, 45-60 parts of ceramic powder, 45-60 parts of glass dust, 5-15 parts of calcium oxide, 2-8 parts of zinc oxide,
Melamine cyanurate：0-20 parts, 10-15 parts of microencapsulated powder oil, 45-55 parts of nano-aluminum hydroxide, organo montmorillonite 2-5
Part, 2-5 parts of multi-walled carbon nanotube, 0.5-2 parts of antioxidant, 0.5-2 parts of silane coupling agent, 2-6 parts of lubricant silicone master batch.
As a further improvement on the present invention, the ground connection core is for one and at the center of cable core, the power
Core is four and circumferentially surrounds the outside of distribution ground connection core, and the control core conductor is for four and respectively positioned at adjacent
Power guide core between.
Existing frequently-used fire prevention is usually all the wrapped one or two layers mica tape outside cable conductor, to ensure cable in fire
Circuit circulation under the conditions of flame, or even employ fire proofing or in cable core to strengthen the ability of cable resistance flame
Middle addition Ceramic silicon rubber is as refuge floor.And the cable of the present invention employs new ceramic material as oversheath,
Other structures part also uses fire proofing as far as possible at the same time, with more efficiently fire protection flame retarding.
The beneficial effects of the invention are as follows：
No longer wrapped flame retardant coating outside conductor of the present invention, insulating layer, oversheath use LSOH anti-flaming ceramic polyolefin
Material, power wire core, control conductor, the orderly reasonable placement of ground wire, inside has waterstop, polythene inner, there is new Buddhist nun outside
Imperial enhancement layer, with meet railway tunnel intraoral illumination, control circuit safe long-time service needs, it can be achieved that waterproof, fire prevention, protection against rodents
Ant effect, at the same it is cheap, it can meet the use needs of railway tunnel light conduits, prolong the service life, greatly improve
The safety in utilization of cable.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the present invention.
Embodiment
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention easy to understand, below it is right
The present invention is expanded on further.
Embodiment one
As shown in Figure 1, a kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits, including several power wire cores, control
The cable core that core and ground connection core are twisted, the outside of the cable core are surrounded with fire prevention belting layer 5, block water successively from inside to outside
Belting layer 6, liner layer 7, metal armor layers 8, oversheath 9, enhancement layer 10, are equipped between the cable core and fire prevention belting layer 5 and fill out
Fill thing 11.The power wire core, control conductor and ground connection core include power wire core conductor 1, control core conductor 3, connect respectively
Wire core 4, the power wire core conductor 1, control core conductor 3, the outside of ground connection core 4 are coated with insulating layer 2.
The power wire core conductor 1, control core conductor 3, ground wire conductor 4 are the solid copper conductor of 1 class or 2 similar rounds
Press any of copper conductor.
The fire prevention belting layer 5 wrapped forms for glass tape is overlapping.Glass tape not only has the performance of fire protection flame retarding, also
Moisture can be absorbed play the role of waterproof and block water, and glass material also can effectively prevent biting for the carious tooth class animal such as mouse ant
Play the role of effective rat-and-ant proof.
The band 6 that blocks water is flame retardant type waterstop.It both has the function of the waterproof that blocks water, it may have certain is fire-retardant
Fire-proof function.
The liner layer 7 is made of polythene material.Using inside use the belting layer 6 that blocks water, it is outer using squash type extrude
Polythene material does liner layer 7, effectively moisture can be prevented to immerse, and realizes the function of waterproof.
The metal armor layers 8 are made of galvanized steel strip.Wrapped one layer of glass tape outside the cable core of cable, at the same it is interior
Lining 7 outside using the novel nylon of extrusion forming, as enhancement layer, realized more by the zinc-plated steel-tape armouring of wrapped bilayer, cable outermost layer
Layer protection, makes it have good Corrosion Protection and certain resistance to compression effect.
The oversheath 9 is made of LSOH anti-flaming ceramic polyolefine material.Existing ceramic material-pottery
Porcelain SiClx rubber, its fireproof performance are also very superior, but due to its high cost, special extrusion equipment, all
Larger restriction effect is widely used to it, and its mechanical performance is poor after the extrusion for Ceramic silicon rubber.The present invention exists
On the basis of original low-smoke halogen-free polyolefin, from new addition raw material, rational allocation each component, makes low-smoke halogen-free polyolefin
It is provided with the case of flame combustion and ceramic change occurs, while takes into account the performance of low-smoke halogen-free polyolefin.
The enhancement layer 10 is made of novel flame-retardant nylon material, and the novel flame-retardant nylon material includes following weight
Component：65-75 parts of long-chain nylon, 5-10 parts of maleic anhydride grafts compatilizer, 5-10 points of melamine phosphate, microcapsules
Change 5-10 parts of red phosphorus, 5-10 parts of boron modified phenolic resin.The novel nylon material has well heat-resisting, low temperature resistant, wear-resisting, resistance to
Chemically and self lubricity, while because adding the resistance such as melamine phosphate, microencapsulated powder oil and boron modified phenolic resin
Combustion agent has high flame retardant, and oxygen index (OI) more than 32, UL=94V-0 grades of vertical combustion, nylon material does not possess fire-retardant before changing
The shortcomings that performance.
Embodiment two
As shown in Figure 1, a kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits, including several power wire cores, control
The cable core that core and ground connection core are twisted, the outside of the cable core are surrounded with fire prevention belting layer 5, block water successively from inside to outside
Belting layer 6, liner layer 7, metal armor layers 8, oversheath 9, enhancement layer 10, are equipped between the cable core and fire prevention belting layer 5 and fill out
Fill thing 11.The power wire core, control conductor and ground connection core include power wire core conductor 1, control core conductor 3, connect respectively
Wire core 4, the power wire core conductor 1, control core conductor 3, the outside of ground connection core 4 are coated with insulating layer 2.
The power wire core conductor 1, control core conductor 3, ground wire conductor 4 are the solid copper conductor of 1 class or 2 similar rounds
Press any of copper conductor.
The fire prevention belting layer 5 wrapped forms for glass tape is overlapping.Glass tape not only has the performance of fire protection flame retarding, also
Moisture can be absorbed play the role of waterproof and block water, and glass material also can effectively prevent biting for the carious tooth class animal such as mouse ant
Play the role of effective rat-and-ant proof.
The band 6 that blocks water is flame retardant type waterstop.It both has the function of the waterproof that blocks water, it may have certain is fire-retardant
Fire-proof function.
The liner layer 7 is made of polythene material.Using inside use the belting layer 6 that blocks water, it is outer using squash type extrude
Polythene material does liner layer 7, effectively moisture can be prevented to immerse, and realizes the function of waterproof.
The metal armor layers 8 are made of galvanized steel strip.Wrapped one layer of glass tape outside the cable core of cable, at the same it is interior
Lining 7 outside using the novel nylon of extrusion forming, as enhancement layer, realized more by the zinc-plated steel-tape armouring of wrapped bilayer, cable outermost layer
Layer protection, makes it have good Corrosion Protection and certain resistance to compression effect.
The oversheath 9 is made of LSOH anti-flaming ceramic polyolefine material.Existing ceramic material-pottery
Porcelain SiClx rubber, its fireproof performance are also very superior, but due to its high cost, special extrusion equipment, all
Larger restriction effect is widely used to it, and its mechanical performance is poor after the extrusion for Ceramic silicon rubber.The present invention exists
On the basis of original low-smoke halogen-free polyolefin, from new addition raw material, rational allocation each component, makes low-smoke halogen-free polyolefin
It is provided with the case of flame combustion and ceramic change occurs, while takes into account the performance of low-smoke halogen-free polyolefin.
The enhancement layer 10 is made of novel flame-retardant nylon material, wherein, the novel nylon sheath material formula it is specific
Component is：
| Material | Number | Mass percent |
| Long-chain nylon | 73 | 73% |
| Maleic anhydride grafts compatilizer | 7 | 7% |
| Melamine phosphate | 7 | 7% |
| Microencapsulated powder oil | 6 | 6% |
| Boron modified phenolic resin | 7 | 7% |
Above-mentioned number amounts to 100 parts, mass percent 100%.
Embodiment three
As shown in Figure 1, a kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits, including several power wire cores, control
The cable core that core and ground connection core are twisted, the outside of the cable core are surrounded with fire prevention belting layer 5, block water successively from inside to outside
Belting layer 6, liner layer 7, metal armor layers 8, oversheath 9, enhancement layer 10, are equipped between the cable core and fire prevention belting layer 5 and fill out
Fill thing 11.The power wire core, control conductor and ground connection core include power wire core conductor 1, control core conductor 3, connect respectively
Wire core 4, the power wire core conductor 1, control core conductor 3, the outside of ground connection core 4 are coated with insulating layer 2.
The power wire core conductor 1, control core conductor 3, ground wire conductor 4 are the solid copper conductor of 1 class or 2 similar rounds
Press any of copper conductor.
The fire prevention belting layer 5 wrapped forms for glass tape is overlapping.Glass tape not only has the performance of fire protection flame retarding, also
Moisture can be absorbed play the role of waterproof and block water, and glass material also can effectively prevent biting for the carious tooth class animal such as mouse ant
Play the role of effective rat-and-ant proof.
The band 6 that blocks water is flame retardant type waterstop.It both has the function of the waterproof that blocks water, it may have certain is fire-retardant
Fire-proof function.
The liner layer 7 is made of polythene material.Using inside use the belting layer 6 that blocks water, it is outer using squash type extrude
Polythene material does liner layer 7, effectively moisture can be prevented to immerse, and realizes the function of waterproof.
The metal armor layers 8 are made of galvanized steel strip.Wrapped one layer of glass tape outside the cable core of cable, at the same it is interior
Lining 7 outside using the novel nylon of extrusion forming, as enhancement layer, realized more by the zinc-plated steel-tape armouring of wrapped bilayer, cable outermost layer
Layer protection, makes it have good Corrosion Protection and certain resistance to compression effect.
The oversheath 9 is made of LSOH anti-flaming ceramic polyolefine material.Existing ceramic material-pottery
Porcelain SiClx rubber, its fireproof performance are also very superior, but due to its high cost, special extrusion equipment, all
Larger restriction effect is widely used to it, and its mechanical performance is poor after the extrusion for Ceramic silicon rubber.The present invention exists
On the basis of original low-smoke halogen-free polyolefin, from new addition raw material, rational allocation each component, makes low-smoke halogen-free polyolefin
It is provided with the case of flame combustion and ceramic change occurs, while takes into account the performance of low-smoke halogen-free polyolefin.
The insulating layer 2 is made for the LSOH anti-flaming ceramic polyolefin insulation material of environment-friendly type and makees with fireprotection layer
With the concrete component that the insulating layer 2 is formulated is as follows：
| Material | Number | Mass percent |
| Ethylene-vinyl acetate copolymer | 50 | 13.4% |
| Ethene-alpha-olefin copolymer | 55 | 14.7% |
| High-density polyethylene resin | 9 | 2.4% |
| Maleic anhydride is grafted amorphous polyolefin | 7 | 1.9% |
| Mica powder | 45 | 12.0% |
| Ceramic powder | 50 | 13.4% |
| Glass dust | 50 | 13.4% |
| Calcium oxide | 10 | 2.7% |
| Zinc oxide | 5 | 1.3% |
| Melamine cyanurate | 15 | 4.0% |
| Microencapsulated powder oil | 13 | 3.5% |
| Nano-aluminum hydroxide | 50 | 13.4% |
| Organo montmorillonite | 4 | 1.1% |
| Multi-walled carbon nanotube | 4 | 1.1% |
| Antioxidant | 1 | 0.3% |
| Silane coupling agent | 1 | 0.3% |
| Lubricant silicone master batch | 4 | 1.1% |
Above-mentioned number amounts to 373 parts, mass percent 100%.
Based on it is upper it is described understand, environment-protective halogen-free low-smoke flame-retardant ceramic polyolefine material of the invention is high intensity, height
Fire-retardant, high ceramic：Nanometer hydroxide has high flame retardant as fire retardant, and carbon nanotubes is not only carried as auxiliary material
The high intensity of material, fire resistance also improve its ceramic performance at the same time.Combustion can not be prolonged during horizontal firing with self-extinguishment,
In the case of 1600 DEG C have flame, nonflame, do not melt, do not drip, do not fall off, spot fire will not be caused, and heavily fortified point can be formed after burning
Hard ceramic-like housing, has ceramic honeycomb fine holes, can effective fire insulation, heat-insulated, water proof.
The performance representative value and the fiducial value of common thermoplastic's polyolefin and flame-proof PVC of material are as shown in the table：
| Project | Unit | Ceramic polyolefin | Thermoplastic polyolefin | Flame-proof PVC |
| Tensile strength | MPa | ≥15 | ≥12.5 | ≥15 |
| Elongation at break | % | ≥120 | ≥170 | ≥180 |
| Smoke density (has flame) | ≤62 | ≤80 | - | |
| Smoke density (nonflame) | ≤130 | ≤175 | - | |
| Oxygen index (OI) | ≥38 | ≥35 | 30 | |
| PH value | ≥6.9 | ≥5.2 | - | |
| Electrical conductivity | μS/mm | ≤1.1 | ≤1.5 | - |
| Content of halogen | mg/g | 0 | 0 | - |
| Poison exponent | ≤0.28 | ≤2.5 | - | |
| Ceramic is remaining after burning | % | ≥82 | - | - |
| Ceramic bending strength | MPa | ≥6.4 | - | - |
Example IV
As shown in Figure 1, a kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits, including several power wire cores, control
The cable core that core and ground connection core are twisted, the outside of the cable core are surrounded with fire prevention belting layer 5, block water successively from inside to outside
Belting layer 6, liner layer 7, metal armor layers 8, oversheath 9, enhancement layer 10, are equipped between the cable core and fire prevention belting layer 5 and fill out
Fill thing 11.The power wire core, control conductor and ground connection core include power wire core conductor 1, control core conductor 3, connect respectively
Wire core 4, the power wire core conductor 1, control core conductor 3, the outside of ground connection core 4 are coated with insulating layer 2.
The power wire core conductor 1, control core conductor 3, ground wire conductor 4 are the solid copper conductor of 1 class or 2 similar rounds
Press any of copper conductor.
The fire prevention belting layer 5 wrapped forms for glass tape is overlapping.Glass tape not only has the performance of fire protection flame retarding, also
Moisture can be absorbed play the role of waterproof and block water, and glass material also can effectively prevent biting for the carious tooth class animal such as mouse ant
Play the role of effective rat-and-ant proof.
The band 6 that blocks water is flame retardant type waterstop.It both has the function of the waterproof that blocks water, it may have certain is fire-retardant
Fire-proof function.
The liner layer 7 is made of polythene material.Using inside use the belting layer 6 that blocks water, it is outer using squash type extrude
Polythene material does liner layer 7, effectively moisture can be prevented to immerse, and realizes the function of waterproof.
The metal armor layers 8 are made of galvanized steel strip.Wrapped one layer of glass tape outside the cable core of cable, at the same it is interior
Lining 7 outside using the novel nylon of extrusion forming, as enhancement layer, realized more by the zinc-plated steel-tape armouring of wrapped bilayer, cable outermost layer
Layer protection, makes it have good Corrosion Protection and certain resistance to compression effect.
The oversheath 9 is made of LSOH anti-flaming ceramic polyolefine material.Existing ceramic material-pottery
Porcelain SiClx rubber, its fireproof performance are also very superior, but due to its high cost, special extrusion equipment, all
Larger restriction effect is widely used to it, and its mechanical performance is poor after the extrusion for Ceramic silicon rubber.The present invention exists
On the basis of original low-smoke halogen-free polyolefin, from new addition raw material, rational allocation each component, makes low-smoke halogen-free polyolefin
It is provided with the case of flame combustion and ceramic change occurs, while takes into account the performance of low-smoke halogen-free polyolefin.
For the ground connection core for one and at the center of cable core, the power wire core is four and circumferentially surrounds point
The outside of cloth ground connection core, the control core conductor is for four and respectively between adjacent power guide core.
By taking 0.6/1kV4*35+1*16+4*2.5 as an example.
1st, wire drawing, annealing：Machine of drawing copper draw 2.52mm, 1.70mm, 1.76mm copper monofilament, resistivity are not more than
0.017241Ω·mm2/m。
2nd, twisted wire：The conductor of ground connection core：16mm2Conductor structure is twisted to press and forms for 7 1.70mm copper monofilament, is twisted
Structure is 1+6, and direction of lay is left-hand, and twisted mould is sintered carbide die, and die size 4.8mm, twisting pitch, which controls, to exist
77~96mm；Power wire core conductor：35mm2Conductor structure is twisted to press and forms for 7 2.52mm copper monofilament, lay configuration 1+
6, direction of lay is left-hand, and twisted twisted mould be sintered carbide die, die size 7.0mm, twisting pitch controls 98~
140mm；Control core conductor：2.5mm2 conductor structures are 1 1.76mm copper monofilament.
3rd, insulate：Control conductor insulation is extruded using 50 extruders of ￠, and average thickness 0.7mm, thinnest point thickness is not less than
0.53mm；Ground connection core is extruded using 65 extruders of ￠, and average thickness 0.7mm, thinnest point thickness is not less than 0.53mm；Power line
Core is extruded using 65 extruders of ￠, and average thickness 0.9mm, thinnest point thickness is not less than 0.71mm.
4th, liner layer is extruded：An average thickness is extruded using 65 extruders of ￠ in cable core surface squash type to be not less than
The pe sheath of 1.2mm, thinnest point thickness are not less than 0.76mm.
5th, armouring：Wrapped, the lapping direction left-hand using double-deck galvanized steel strip gap, the cap rate of steel band are wide no more than steel band
The 30% of degree.
6th, oversheath：It is low not less than the Halogen of 1.8mm that one average thickness is extruded outside liner layer using 90 extruders of ￠
Cigarette Flame-retardant ceramic polyolefin jacket material, thinnest point thickness are not less than 1.43mm.
7th, enhancement layer：New Buddhist nun of one average thickness not less than 0.8mm is extruded outside oversheath using 90 extruders of ￠
Imperial protective cover material, thinnest point thickness are not less than 0.68mm.
Based on upper above-described embodiment, no longer wrapped flame retardant coating outside conductor of the present invention, insulating layer, oversheath use low smoke, zero halogen
Flame-retardant ceramic polyolefine material, power wire core, control conductor, the orderly reasonable placement of ground wire, inside have waterstop, in polyethylene
Sheath, there is novel nylon enhancement layer outside, with meet railway tunnel intraoral illumination, control circuit safe long-time service needs, can be real
Existing waterproof, fire prevention, rat-and-ant proof effect, at the same it is cheap, it can meet the use needs of railway tunnel light conduits, extend and use
In the service life, greatly improve the safety in utilization of cable.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these change and
Improvement is both fallen within claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (10)
- A kind of 1. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits, it is characterised in that：Including several power wire cores, control line The cable core that core and ground connection core are twisted, the outside of the cable core are surrounded with fire prevention belting layer (5), block water successively from inside to outside Belting layer (6), liner layer (7), metal armor layers (8), oversheath (9), enhancement layer (10), the cable core and fire prevention belting layer (5) filler (11) is equipped between；The power wire core, control conductor and ground connection core include power wire core conductor (1), control core conductor (3), connect respectively Wire core (4), the power wire core conductor (1), control core conductor (3), the outside of ground connection core (4) are coated with insulating layer (2)。
- A kind of 2. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits according to claim 1, it is characterised in that：It is described dynamic Line of force core conductor (1), control core conductor (3), ground wire conductor (4) are the solid copper conductor of 1 class or 2 similar rounds press copper and lead Any of body.
- A kind of 3. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits according to claim 1, it is characterised in that：It is described anti- Fiery belting layer (5) wrapped forms for glass tape is overlapping.
- A kind of 4. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits according to claim 1, it is characterised in that：Described The band (6) that blocks water is flame retardant type waterstop.
- A kind of 5. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits according to claim 1, it is characterised in that：In described Lining (7) is made of polythene material.
- A kind of 6. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits according to claim 1, it is characterised in that：Described Metal armor layers (8) are made of galvanized steel strip.
- A kind of 7. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits according to claim 1, it is characterised in that：Described Oversheath (9) is made of LSOH anti-flaming ceramic polyolefine material.
- A kind of 8. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits according to claim 1, it is characterised in that：It is described to add Strong layer (10) is made of novel flame-retardant nylon material, and the novel flame-retardant nylon material includes the component of following weight：Long-chain 65-75 parts of nylon, 5-10 parts of maleic anhydride grafts compatilizer, 5-10 points of melamine phosphate, microencapsulated powder oil 5-10 Part, 5-10 parts of boron modified phenolic resin.
- A kind of 9. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits according to claim 1, it is characterised in that：It is described exhausted Edge layer (2) is made for the LSOH anti-flaming ceramic polyolefin insulation material of environment-friendly type and with fireprotection layer effect, the insulation Layer (2) includes the component of following weight：45-55 parts of ethylene-vinyl acetate copolymer, ethene-alpha-olefin copolymer 50-60 Part, 5-9 parts of amorphous polyolefin of 6-12 parts of high-density polyethylene resin, maleic anhydride grafting, 35-55 parts of mica powder, ceramic powder 45-60 parts, 45-60 parts of glass dust, 5-15 parts of calcium oxide, 2-8 parts of zinc oxide, melamine cyanurate：0-20 parts, microcapsules Change 10-15 parts of red phosphorus, 45-55 parts of nano-aluminum hydroxide, 2-5 parts of organo montmorillonite, 2-5 parts of multi-walled carbon nanotube, antioxidant 0.5-2 parts, 0.5-2 parts of silane coupling agent, 2-6 parts of lubricant silicone master batch.
- A kind of 10. railway tunnel fire-proof and water-proof rat-and-ant proof light conduits according to claim 1, it is characterised in that：It is described For one and at the center of cable core, the power wire core is four and circumferentially surrounds distribution ground connection core ground connection core Outside, the control core conductor is for four and respectively between adjacent power guide core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711197861.3A CN107993760A (en) | 2017-11-25 | 2017-11-25 | A kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711197861.3A CN107993760A (en) | 2017-11-25 | 2017-11-25 | A kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107993760A true CN107993760A (en) | 2018-05-04 |
Family
ID=62032141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711197861.3A Pending CN107993760A (en) | 2017-11-25 | 2017-11-25 | A kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107993760A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711468A (en) * | 2018-05-21 | 2018-10-26 | 浙江嘉泽电缆有限公司 | A kind of fireproof environmental cable and its production technology |
| CN112331392A (en) * | 2020-11-18 | 2021-02-05 | 湖南华菱线缆股份有限公司 | Impact-resistant oxidation-resistant waterproof cable |
| CN114242307A (en) * | 2021-12-09 | 2022-03-25 | 新亚特电缆股份有限公司 | Waterproof fireproof rat-proof and termite-proof composite cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105367965A (en) * | 2015-11-30 | 2016-03-02 | 中广核三角洲（苏州）高聚物有限公司 | Halogen-free flame-retardant ceramic polyolefin cable material for fire-resisting cables and preparation method for halogen-free flame-retardant ceramic polyolefin cable material |
| CN105504541A (en) * | 2015-12-31 | 2016-04-20 | 崇夕山 | Outer sheath used for self-temperature-limiting electric heat tracing band and having excellent thermal conductivity |
| CN105842800A (en) * | 2016-05-03 | 2016-08-10 | 长飞光纤光缆股份有限公司 | Rat-proof anti-termite fire-proof optical cable and manufacture method thereof |
| CN205487526U (en) * | 2016-03-30 | 2016-08-17 | 安徽华通电缆集团有限公司 | Fire -resistant railway tunnel of environment -friendly power cable that throws light on |
| CN206163177U (en) * | 2016-10-31 | 2017-05-10 | 湖北鄂电萃宇电缆有限公司 | Fireproof power cable blocks water |
| CN107216650A (en) * | 2017-06-02 | 2017-09-29 | 中山康诺德新材料有限公司 | A kind of long glass fiber reinforced halogen-free reinforced nylon compound and preparation method thereof |
-
2017
- 2017-11-25 CN CN201711197861.3A patent/CN107993760A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105367965A (en) * | 2015-11-30 | 2016-03-02 | 中广核三角洲（苏州）高聚物有限公司 | Halogen-free flame-retardant ceramic polyolefin cable material for fire-resisting cables and preparation method for halogen-free flame-retardant ceramic polyolefin cable material |
| CN105504541A (en) * | 2015-12-31 | 2016-04-20 | 崇夕山 | Outer sheath used for self-temperature-limiting electric heat tracing band and having excellent thermal conductivity |
| CN205487526U (en) * | 2016-03-30 | 2016-08-17 | 安徽华通电缆集团有限公司 | Fire -resistant railway tunnel of environment -friendly power cable that throws light on |
| CN105842800A (en) * | 2016-05-03 | 2016-08-10 | 长飞光纤光缆股份有限公司 | Rat-proof anti-termite fire-proof optical cable and manufacture method thereof |
| CN206163177U (en) * | 2016-10-31 | 2017-05-10 | 湖北鄂电萃宇电缆有限公司 | Fireproof power cable blocks water |
| CN107216650A (en) * | 2017-06-02 | 2017-09-29 | 中山康诺德新材料有限公司 | A kind of long glass fiber reinforced halogen-free reinforced nylon compound and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711468A (en) * | 2018-05-21 | 2018-10-26 | 浙江嘉泽电缆有限公司 | A kind of fireproof environmental cable and its production technology |
| CN112331392A (en) * | 2020-11-18 | 2021-02-05 | 湖南华菱线缆股份有限公司 | Impact-resistant oxidation-resistant waterproof cable |
| CN114242307A (en) * | 2021-12-09 | 2022-03-25 | 新亚特电缆股份有限公司 | Waterproof fireproof rat-proof and termite-proof composite cable |
| CN114242307B (en) * | 2021-12-09 | 2023-10-27 | 新亚特电缆股份有限公司 | Waterproof, fireproof and rat-proof composite cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022257682A1 (en) | Mineral-filled flame-retardant and fireproof isolation-type special cable for modern buildings | |
| CN107993760A (en) | A kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits | |
| CN204303399U (en) | Flexible cable is pressed in low smoke halogen-free fire retardant fire resistant | |
| CN204991258U (en) | Environment -friendly high life crosslinked cable | |
| CN202171970U (en) | Low-smoke halogen-free flame retardant fireproof cable used in urban railway system | |
| CN203706730U (en) | High-flame-retardant low smoke halogen-free medium-voltage fire resisting cable | |
| CN205177474U (en) | Fire -resistant power cable of cross -linked insulation | |
| CN106158084B (en) | Track traffic DC dynamo and control composite cable | |
| CN205487526U (en) | Fire -resistant railway tunnel of environment -friendly power cable that throws light on | |
| CN104008792B (en) | A kind of production technology of Novel medium voltage fire-resisting cable | |
| CN114242307B (en) | Waterproof, fireproof and rat-proof composite cable | |
| CN205177445U (en) | Fireproof cable | |
| CN109637729A (en) | Mineral-insulated fireproof controls cable | |
| CN204348375U (en) | Ceramic polyolefin environment-friendly flame-retardant fire-resistant flexible cable | |
| CN203377011U (en) | Ant and rat-proof flexible fireproof cable for fire elevator | |
| CN210136736U (en) | High flame-retardant weather-resistant cable for rail transit | |
| CN203038705U (en) | Flexible-conductor DC power cable with flame-retardation wrapped tape | |
| CN208538511U (en) | A kind of fireproof cable | |
| CN110890173A (en) | Fireproof railway digital signal cable | |
| CN219575226U (en) | Knocking-resistant water-spraying-resistant flame-retardant cable | |
| CN206401100U (en) | A kind of multifunction railway traffic fireproof cable | |
| CN205211440U (en) | Fire extinguishing system is with there not being steamed low cigarette cable | |
| CN218730049U (en) | Low-smoke flame-retardant B1-level cable | |
| CN104200904A (en) | Fireproof, power-saving and durable wire cable and manufacturing method thereof | |
| CN214203306U (en) | Low-smoke low-corrosion flame-retardant high-voltage fireproof power transmission cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180504 |
|
| RJ01 | Rejection of invention patent application after publication |