CN208806079U - Used in nuclear power station three proofings electrical equipment cable - Google Patents
Used in nuclear power station three proofings electrical equipment cable Download PDFInfo
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- CN208806079U CN208806079U CN201821727398.9U CN201821727398U CN208806079U CN 208806079 U CN208806079 U CN 208806079U CN 201821727398 U CN201821727398 U CN 201821727398U CN 208806079 U CN208806079 U CN 208806079U
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Abstract
A kind of used in nuclear power station three proofings electrical equipment cable, including including being twisted the cable core that bunchy is formed by more cores, core is made of fire lagging, separation layer and the oxygen barrier layer successively wrapped up from the inside to the outside outside conductor and conductor；Cable core is wrapped with belting layer, and filled with fire prevention filled layer between belting layer and the oxygen barrier layer of each core, belting layer is provided with restrictive coating outside；Conductor is the 2nd kind of tinned copper conductor specified in GB/T3956-2008, and section is 1.5~400mm2；Fire lagging is that two-sided composite mica tape is overlapped wrapping layer；Separation layer is the close longitudinal wrap layer of metal tape；Belting layer is high flame resistance, low smoke halogen-free flameproof band wrapping layer.Used in nuclear power station three proofings electrical equipment cable provided by the utility model; can solve fire prevention, radiation protection, anticorrosion ability difference problem; in the case where guaranteeing normal mechanical performance, there is excellent fire prevention, radiation protection, anticorrosion ability, be able to satisfy the requirement of nuclear power station complex environment.
Description
Technical field
The utility model relates to field of cables, especially a kind of used in nuclear power station three proofings electrical equipment cable.
Background technique
In recent years, wires and cables industry excess production capacity, with low content of technology, entire industry development slowly becomes long-standing and asks
Topic.Cable enterprise strives to find breach, and new energy cable that is high in technological content, adapting to future market demand becomes mainstream.Area
Not in normal cable, the new energy cable with leading superiority is increasingly becoming the hot spot of cable competition among enterprises.
With the rapid development of the global economy, world energy sources demand constantly increases.In recent years, many developing countries are passing through
It emerges rapidly in Ji, basis of the energy as national economic development, supply will growing tension.By taking China as an example, although I
State occupies an important position in global economic development, and has the tendency that constantly rising, but we should be realized that China is existing
Period of Heavy Chemical Industry of the stage still in total energy consumption sharp increase, it is necessary to by the energy such as thermoelectricity, water power, nuclear power, renewable energy
Source can only play auxiliary and supplementary function.Low-carbon environment-friendly is trend of the times, and in addition to extensive hydroelectric generation, nuclear power becomes in current China
The basic generation mode of unique low-carbon emission, will also become the mainstay of electric structure.Within following more than ten years, China
More nuclear power stations can be also built, in addition the nuclear power station project built, shares nearly 50 nuclear power stations and needs nuclear power cable,
Therefore the market space of nuclear power cable is very wide.
Used in nuclear power station electrical equipment cable is mainly distributed on nuclear island, conventional island, makees power transmission and control, instrument connection etc.
It is used.The type of cable needed for nuclear power station is substantially identical as thermal power station, but since cables of nuclear power is to Halogen, low cigarette, low toxicity etc.
Technical property requirements are very stringent, and therefore, for now, China is only capable of production nuclear island periphery wire and cable, and remaining is answered
Cable relies on import mostly.
Traditional cable for nuclear power station is always a hardly possible for fire prevention, radiation protection, Anticorrosion Problems in actual working environment
The topic of solution.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of used in nuclear power station three proofings electrical equipment cables, can solve
Certainly fire prevention, radiation protection, anticorrosion ability difference problem there is excellent fire prevention, anti-in the case where guaranteeing normal mechanical performance
Radiation, anticorrosion ability, are able to satisfy the requirement of nuclear power station complex environment.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:, and a kind of used in nuclear power station three proofings are electrical
Equipment cable, including including being twisted the cable core that bunchy is formed by more cores,
Core is made of fire lagging, separation layer and the oxygen barrier layer successively wrapped up from the inside to the outside outside conductor and conductor；
Cable core is wrapped with belting layer, filled with fire prevention filled layer, belting layer between belting layer and the oxygen barrier layer of each core
It is provided with restrictive coating outside；
Conductor is the 2nd kind of tinned copper conductor specified in GB/T3956-2008, and section is 1.5~400mm2；
Fire lagging is that two-sided composite mica tape is overlapped wrapping layer；
Separation layer is the close longitudinal wrap layer of metal tape；
Belting layer is high flame resistance, low smoke halogen-free flameproof band wrapping layer.
Fire prevention filled layer is magnesium hydroxide filled layer.
Oxygen barrier layer is that crosslinked polyethylene extrudes layer.
Restrictive coating is high flame resistance, low smoke Halogen radiation protection anticorrosion cross-linked polyolefin sheath layer.
Used in nuclear power station three proofings electrical equipment cable provided by the utility model, conductor uses to be provided in GB/T3956-2008
The 2nd kind of tinned copper conductor, be easy to lay, while flexible relative, bending property is good, be more suitable for nuclear power station place use, separately
Outer tin coating can play corrosion-resisting function, the copper conductor of protection transmission electric current；Fire lagging is the overlapping of two-sided composite mica tape
Wrapping layer, the material have excellent electrical insulation properties, excellent fire protecting performance, high and low temperature resistance and good corrosion-resistant
Chemical property；Separation layer is the close longitudinal wrap layer of metal tape, and fire lagging and external environment are kept apart, greatly increased
Fireproofing of cable performance guarantees that flame will not be damaged to the insulation performance of cable；Oxygen barrier layer is that crosslinked polyethylene extrudes layer, is had
Preferable high temperature resistance is a kind of superior heat absorption oxygen barrier material, can guarantee good absorption release burning under Fire Conditions
Heat prevents the entrance of oxygen；Restrictive coating uses high flame resistance, low smoke Halogen radiation protection anticorrosion crosslinked polyolefin materials, has very
Good flame-retardant low-smoke halogen-free performance, while in the case where guaranteeing normal mechanical performance, there is good radiation protection and anticorrosion
Performance.
Can solve fire prevention, radiation protection, anticorrosion ability difference problem, in the case where guaranteeing normal mechanical performance, tool
There are excellent fire prevention, radiation protection, anticorrosion ability, is able to satisfy the requirement of nuclear power station complex environment.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, a kind of used in nuclear power station three proofings electrical equipment cable, including formed including being twisted bunchy by more cores
Cable core,
Fire lagging 2, separation layer 3 and the oxygen barrier layer 4 that core is successively wrapped up from the inside to the outside outside by conductor 1 and conductor 1
Composition；
Cable core is wrapped with belting layer 6, filled with fire prevention filled layer 5, packet between belting layer 6 and the oxygen barrier layer 4 of each core
Restrictive coating 7 is provided with outside belt 6；
Conductor 1 is the 2nd kind of tinned copper conductor specified in GB/T3956-2008, and section is 1.5~400mm2；
Fire lagging 2 is that two-sided composite mica tape is overlapped wrapping layer；
Separation layer 3 is the close longitudinal wrap layer of metal tape；
Belting layer 6 is high flame resistance, low smoke halogen-free flameproof band wrapping layer.
Fire prevention filled layer 5 is magnesium hydroxide filled layer.
Oxygen barrier layer 4 is that crosslinked polyethylene extrudes layer.
Restrictive coating 7 is high flame resistance, low smoke Halogen radiation protection anticorrosion cross-linked polyolefin sheath layer.
The production main points of each layer of the utility model are as follows:
1, conductor 1
Conductor material is conducting wire made of oxygen-free copper bar is drawn.Conductor is using the 2nd kind of plating specified in GB/T3956-2008
Tin copper conductor.Cross-sectional area of conductor is generally 1.5~400mm2.It is not only easy using the 2nd class conductor particularly with big section power cable
In laying, while flexible relative, bending property is good, is more suitable for nuclear power station place use, and in addition conductor uses tinned copper wire, plating
Tin layers can play corrosion-resisting function, the copper conductor of protection transmission electric current.
2, fire lagging 2
Fire lagging 2 is that the overlapping of two-sided composite mica tape is wrapped.The material has excellent electrical insulation properties, excellent
Fire protecting performance, high and low temperature resistance and good corrosion-resistant chemical property.
3, separation layer 3
Separation layer 3 is the close longitudinal wrap layer of metal tape.Metal tape uses aluminium strip or aluminum alloy strip, and the interface of longitudinal wrap is using company
Continuous welding, soldering opening is flat and smooth, non-notch, solder skip.Fire lagging and external environment can be kept apart in this way, greatly
Fireproofing of cable performance is improved, guarantees that flame will not be damaged to the insulation performance of cable.
4, oxygen barrier layer 4
Oxygen barrier layer 4 is that crosslinked polyethylene extrudes layer.Crosslinked polyethylene has preferable high temperature resistance, is a kind of superior
Heat-absorbing material can guarantee that good absorption discharges calory burning under Fire Conditions.The material good seal performance simultaneously, can prevent oxygen
Gas is diffused into insulating layer, prevents the diffusion combustion of flame.In addition, the material can be insulated by adding different color masterbatch
Core split-phase is distinguished, convenient for installing and using for cable.
5, fire prevention filled layer 5
Fire prevention filled layer 5 extrudes filling using magnesium hydroxide, which is superior fire proofing material, while convenient for being extruded into
Type makes cable appearance rounding.
6, belting layer 6
Belting layer 6 is wrapped using high flame resistance, low smoke halogen-free flameproof band.Pass through one or more layers band wrapped outside cable core
It tightens, prevents cable core in laid processes loose.Meanwhile the material also has low smoke and zero halogen fire protecting performance, is a kind of novel environment friendly
Material.
7, restrictive coating 7
The realization of cable comprehensive performance depends greatly on the sheath of cable.In view of deisgn product need to be fire-retardant anti-
Verifying is compared in fire, radiation protection, anticorrosion by test of many times repeatedly, final to select modified high flame resistance, low smoke Halogen radiation protection
Sheath material of the anticorrosion cross-linked polyolefin as cable.The material oxygen index (OI) of the material is very high, has good Flame-retardant low-smoke
Halogen performance, while in the case where guaranteeing normal mechanical performance, there is good radiation protection and Corrosion Protection, be able to satisfy core
The requirement of power station complex environment.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the features in the embodiments and the embodiments of the present application in the absence of conflict, can mutual any combination.This is practical new
The protection scope of type should be with the technical solution of claim record, technical characteristic in the technical solution recorded including claim
Equivalents are protection scope.Equivalent replacement i.e. within this range is improved, also the protection scope of the utility model it
It is interior.
Claims (4)
1. a kind of used in nuclear power station three proofings electrical equipment cable, including being twisted the cable core that bunchy is formed by more cores, feature exists
In:
Fire lagging (2) that core is successively wrapped up from the inside to the outside outside by conductor (1) and conductor (1), separation layer (3) and oxygen barrier
Layer (4) composition；
Cable core is wrapped with belting layer (6), filled with fire prevention filled layer between the oxygen barrier layer (4) of belting layer (6) and each core
(5), restrictive coating (7) are provided with outside belting layer (6)；
Conductor (1) is the 2nd kind of tinned copper conductor specified in GB/T3956-2008, and section is 1.5~400mm2；
Fire lagging (2) is that two-sided composite mica tape is overlapped wrapping layer；
Separation layer (3) is the close longitudinal wrap layer of metal tape；
Belting layer (6) is high flame resistance, low smoke halogen-free flameproof band wrapping layer.
2. used in nuclear power station three proofings electrical equipment cable according to claim 1, it is characterised in that: fire prevention filled layer (5) be
Magnesium hydroxide filled layer.
3. used in nuclear power station three proofings electrical equipment cable according to claim 1, it is characterised in that: oxygen barrier layer (4) is crosslinking
Polyethylene extrudes layer.
4. used in nuclear power station three proofings electrical equipment cable according to claim 1, it is characterised in that: restrictive coating (7) is high resistant
Fire low smoke and zero halogen radiation protection anticorrosion cross-linked polyolefin sheath layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821727398.9U CN208806079U (en) | 2018-10-24 | 2018-10-24 | Used in nuclear power station three proofings electrical equipment cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821727398.9U CN208806079U (en) | 2018-10-24 | 2018-10-24 | Used in nuclear power station three proofings electrical equipment cable |
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| Publication Number | Publication Date |
|---|---|
| CN208806079U true CN208806079U (en) | 2019-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821727398.9U Active CN208806079U (en) | 2018-10-24 | 2018-10-24 | Used in nuclear power station three proofings electrical equipment cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585062A (en) * | 2018-10-24 | 2019-04-05 | 湖北龙腾红旗电缆(集团)有限公司 | Used in nuclear power station three proofings electrical equipment cable |
-
2018
- 2018-10-24 CN CN201821727398.9U patent/CN208806079U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585062A (en) * | 2018-10-24 | 2019-04-05 | 湖北龙腾红旗电缆(集团)有限公司 | Used in nuclear power station three proofings electrical equipment cable |
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