CN208538551U - Anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit - Google Patents
Anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit Download PDFInfo
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- CN208538551U CN208538551U CN201821322018.3U CN201821322018U CN208538551U CN 208538551 U CN208538551 U CN 208538551U CN 201821322018 U CN201821322018 U CN 201821322018U CN 208538551 U CN208538551 U CN 208538551U
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Abstract
The utility model discloses a kind of anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit, the anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit includes conductor, internal shield, insulating layer, external shielding layer, metal screen layer, flame-retardant layer and restrictive coating are successively coated with outside the conductor with one heart, the internal shield is non-crosslinked type polypropylene-base inner semiconductor layer, insulating layer is modified polypropene insulating layer, external shielding layer is non-crosslinked type polypropylene-base out semiconductor layer, metal screen layer is soft copper band shielded layer, and flame-retardant layer is high fire-retardance belt.The utility model material is recyclable to be recycled, and irreversible adverse effect will not be caused to environment.And it can solve the problem that production traditional product production process is uncontrollable, yield rate is not high；The flame-retarding characteristic of cable is then substantially increased using low-smoke bittern-free highly fire-proof band and high fire-retardance polyolefin jacket material.
Description
Technical field
The utility model relates to a kind of anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit.
Background technique
China's Development of Civil Aviation is rapid in recent years, ends for the end of the year 2017, the transport airport that China awards a certificate just has 229, than upper
The end of the year increases 11, and has 4418, regular liner course line.And buried cable for airport flight assistant lamp light circuit is airfield runway
Two sides are used for navaid (light) power consumption cable of vector aircraft landing, and the cable of shortest cycle has more than 1,000 meters long, long circuit
Cable be more than 10km, importance is self-evident.
Circuit connection property is series-fed, and failure will affect whole circuit.And since cable is directly to be buried in
It is not to be laid in pipeline, so that cable is very big by external influence, summer surface temperature is close to 50 degree, and the winter under lawn
Ji Keda -30 degree, or even whole circuit can all impregnate in water when rainy.
Currently, it is 5kV that buried cable for airport flight assistant lamp light circuit, which executes standard assigned voltage grade, insulation is using friendship
Join polyethylene, interior out semiconductor layer uses crosslinked polyolefin alkyl material, will become not recyclable benefit after these crosslink materials
Thermosetting material will ultimately result in the injury to environment.Meanwhile existing buried cable for airport flight assistant lamp light circuit is basic
Do not have flame-retarding characteristic, there is the hidden danger for making fire spreading when meeting fire.
In addition, will be using interior screen, insulation and the three-layer co-extruded technique of external screen in production.And crosslinked polyetylene insulated and crosslinking
Out semiconductor layer is three-layer co-extruded in type needs using the three-layer co-extruded dry cross-linking production line of catenary suspension type continuous vulcanization, the apparatus and process by
Country is included in restricted column through letter committee.And due to being influenced by upper and lower traction, duct length, pendency controller, catenary suspension type continuous vulcanization
Three-layer co-extruded dry cross-linking production line minimum squeezes out conductor specification and generally requires not less than 25mm2, and airfield aid light circuit
It is generally 6mm with the cross-sectional area of conductor of buried cable2, so that the manufacturing process of the cable is more difficult.
Summary of the invention
The technical problem to be solved by the present invention is to provide one kind to have in good flame-retardance energy and insulation and semiconductive
The anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit of external shield material recoverable.
In order to solve the above technical problems, the utility model uses a kind of following technical scheme: anti-flaming environment-friendly voyage aid of the airport
Lighting circuit buried cable, including conductor, be successively coated with one heart outside the conductor internal shield, insulating layer, external shielding layer,
Metal screen layer, flame-retardant layer and restrictive coating, the internal shield are non-crosslinked type polypropylene-base inner semiconductor layer, insulating layer
For modified polypropene insulating layer, external shielding layer is non-crosslinked type polypropylene-base out semiconductor layer, and metal screen layer is soft copper
Band shielded layer, flame-retardant layer are high fire-retardance belt.
Conductor described in the utility model is made by twisting in the way of 1+6 by tinned copper wire.
Internal shield described in the utility model, insulating layer, external shielding layer are once squeezed using non-crosslinked type polypropylene-base material
It forms out, the shielding thickness is 0.4~0.5mm, and thickness of insulating layer is 2.6~2.8mm.
Metal screen layer described in the utility model with a thickness of 0.1~0.15mm, overlap rate is not less than 15%.
Flame-retardant layer described in the utility model is overlapped lapping structure, first layer eclipsed form using the double-deck low-smoke bittern-free highly fire-proof band
Dextrad, second layer eclipsed form left-hand, overlap rate are 20~25%, and high fire-retardance tape thickness is 0.5mm.
Restrictive coating described in the utility model uses low smoke and zero halogen and resisting environmental stress and cracking type high fire-retardance polyolefin jacket, thick
Degree is 1.6~1.8mm.
The utility model compared with prior art, partly led using non-crosslinked type polypropylene-base in cable by out semiconductor layer
Electrical shielding material, insulation use non-crosslinked type modified polypropene Insulation Material, and three's material is all recyclable to be recycled, and will not make to environment
At irreversible adverse effect.And it can solve that production traditional product production process is difficult to control, yield rate is not high asks
Topic；The flame-retarding characteristic of cable is then substantially increased using low-smoke bittern-free highly fire-proof band and high fire-retardance polyolefin jacket material.
Detailed description of the invention
The structural schematic diagram of Fig. 1 the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing: as shown in Figure 1, the fire-retardant ring of the utility model
Guarantor's type buried cable for airport flight assistant lamp light circuit, including conductor 1 are successively coated with internal shield 2, absolutely outside the conductor 1 with one heart
Edge layer 3, external shielding layer 4, metal screen layer 5, flame-retardant layer 6 and restrictive coating 7, wherein internal shield 2 is non-crosslinked type polypropylene-base
Inner semiconductor layer, insulating layer 3 are modified polypropene insulating layer, and external shielding layer 4 is the outer semiconductive of non-crosslinked type polypropylene-base
Shielded layer, metal screen layer 5 are soft copper band shielded layer, and flame-retardant layer 6 is high fire-retardance belt.
The conductor 1 of the utility model is made by twisting that (arrangement mode of " 1+6 " refers to: leading by tinned copper wire in the way of 1+6
Body meets the 2nd class tinned copper wire in GB/T3956-2008 using 7 1.08mm, and an intermediate tinned copper wire, the periphery six roots of sensation are tin plating
Copper wire is regular twisted with one heart), pitch controls between 30~35mm.Internal shield 2, insulating layer 3, external shielding layer 4 use non-friendship
Connection type polypropylene-base material produces an extrusion molding by the three-layer co-extruded technique of Horizontal type, and shielding thickness is 0.4~
0.5mm, thickness of insulating layer be 2.6~2.8mm, internal shield 2, insulating layer 3,4 nominal thickness of external shielding layer be followed successively by 0.5mm,
2.8mm, 0.5mm, thinnest point thickness are followed successively by 0.4mm, 2.66mm, 0.4mm.Metal screen layer 5 with a thickness of 0.1~
0.15mm, overlap rate are not less than 15%.Flame-retardant layer 6 is overlapped lapping structure, first layer weight using the double-deck low-smoke bittern-free highly fire-proof band
Stacked dextrad, second layer eclipsed form left-hand, overlap rate are 20~25%, and high fire-retardance tape thickness is 0.5mm.Restrictive coating 7 is using low
Cigarette Halogen and resisting environmental stress and cracking type high fire-retardance polyolefin jacket, with a thickness of 1.6~1.8mm, nominal thickness 1.8mm,
Thinnest point thickness control is 1.6mm.
The improvements of the utility model:
1. solve in traditional crosslinked polyetylene insulated and cross-linking type external shield material not recoverable, be unfavorable for lacking for environmental protection
Point, and improve production yield rate
The insulating layer of traditional crosslinked cable uses crosslinked polyethylene, and interior out semiconductor layer is all made of cross-linked polyolefin material
Material, these materials will become the thermosetting material of not recoverable after cross-linking, will ultimately result in the injury to environment.And gather
Propylene is one of kind most light in current plastics, also there is that intensity is high, hardness is big, the excellent mechanicalness such as wear-resisting when non-crosslinked
Energy and chemical-resistance, in the case where not by external force, 150 DEG C will not auto Deformation.Due to its temperature resistant grade height, it is not necessarily to
Crosslinking can work for a long time in -20 DEG C~90 DEG C environment, so that modified polypropene Insulation Material used in the utility model
And external shield material can be achieved to recycle in non-crosslinked type polypropylene-base, and irreversible unfavorable shadow will not be caused to environment
It rings, meets environmental requirement.And it need to only be produced using the three-layer co-extruded mode of Horizontal type when producing, solve production traditional product
When production process be difficult to control, the not high problem of yield rate.
2. improving flame retardant property
Cable cooperates high fire-retardance polyolefin oversheath to improve the flame retardant property of cable, more using low-smoke bittern-free highly fire-proof band
It has mended traditional buried cable for airport flight assistant lamp light circuit buried cable and has not had the shortcomings that flame-retarding characteristic.
The utility model is not limited to above-mentioned preferred forms, any other classes obtained under the utility model enlightenment
Like the product of form, it both is within the protection scope of the present invention.
Claims (6)
1. a kind of anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit, including conductor (1), it is characterized in that: the conductor
(1) internal shield (2), insulating layer (3), external shielding layer (4), metal screen layer (5), flame-retardant layer (6) are successively coated with one heart outside
With restrictive coating (7), the internal shield (2) is non-crosslinked type polypropylene-base inner semiconductor layer, and insulating layer (3) is modified poly-
Propylene insulating layer, external shielding layer (4) are non-crosslinked type polypropylene-base out semiconductor layer, and metal screen layer (5) is soft copper band
Shielded layer, flame-retardant layer (6) are high fire-retardance belt.
2. anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit according to claim 1, it is characterized in that: described lead
Body (1) is made by twisting in the way of 1+6 by tinned copper wire.
3. anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit according to claim 2, it is characterized in that: in described
Shielded layer (2), insulating layer (3), external shielding layer (4) use a non-crosslinked extrusion molding of type polypropylene-base material, the shielding
Thickness degree is 0.4~0.5mm, and thickness of insulating layer is 2.6~2.8mm.
4. anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit according to claim 3, it is characterized in that: the gold
Belong to shielded layer (5) with a thickness of 0.1~0.15mm, overlap rate is not less than 15%.
5. anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit according to claim 4, it is characterized in that: the resistance
It fires layer (6) and lapping structure, first layer eclipsed form dextrad, a second layer eclipsed form left side is overlapped using the double-deck low-smoke bittern-free highly fire-proof band
To overlap rate is 20~25%, and high fire-retardance tape thickness is 0.5mm.
6. anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit according to claim 5, it is characterized in that: the shield
Jacket layer (7) uses low smoke and zero halogen and resisting environmental stress and cracking type high fire-retardance polyolefin jacket, with a thickness of 1.6~1.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821322018.3U CN208538551U (en) | 2018-08-16 | 2018-08-16 | Anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821322018.3U CN208538551U (en) | 2018-08-16 | 2018-08-16 | Anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208538551U true CN208538551U (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821322018.3U Active CN208538551U (en) | 2018-08-16 | 2018-08-16 | Anti-flaming environment-friendly buried cable for airport flight assistant lamp light circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466513A (en) * | 2020-11-02 | 2021-03-09 | 宁波东方电缆股份有限公司 | Flexible direct current insulation power cable of 535kV superhigh pressure |
-
2018
- 2018-08-16 CN CN201821322018.3U patent/CN208538551U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466513A (en) * | 2020-11-02 | 2021-03-09 | 宁波东方电缆股份有限公司 | Flexible direct current insulation power cable of 535kV superhigh pressure |
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