CN207883386U - A kind of resistance to high radiation flat type power cable of long-life - Google Patents

A kind of resistance to high radiation flat type power cable of long-life Download PDF

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CN207883386U
CN207883386U CN201820316005.9U CN201820316005U CN207883386U CN 207883386 U CN207883386 U CN 207883386U CN 201820316005 U CN201820316005 U CN 201820316005U CN 207883386 U CN207883386 U CN 207883386U
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core
cable
conductor
layer
resistance
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李世欣
郑睿鹏
王丽萍
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NUCLEAR AND RADIATION SAFETY CENTER
Jiangsu Shangshang Cable Group Co Ltd
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NUCLEAR AND RADIATION SAFETY CENTER
Jiangsu Shangshang Cable Group Co Ltd
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Abstract

A kind of resistance to high radiation flat type power cable of long-life, structure are:Including more identical cores, each core, which is arranged side by side, constitutes cable core, and the distance between adjacent two core is identical as the diameter of core;It is overlapped wrapped plain weave non-woven fabrics twining package tape outside cable core and constitutes the outer lapping layer;Gum filler is filled in gap between plain weave non-woven fabrics twining package tape and core;Outside the outer lapping layer extrude sheath material constitute oversheath, finally constitute radial section be four angles be fillet rectangular shape cable;The structure of the core is:It is enclosed with wrapping layer outside conductor, insulating layer and the outer wrapping layer of insulation successively outside conductor.After abovementioned technology, the service life of this cable reaches 60 years or more, and good bending property, Flouride-resistani acid phesphatase are good, processing performance is good, can effectively improve production efficiency.And meet the basic demand of electrical property and mechanical performance simultaneously.

Description

A kind of resistance to high radiation flat type power cable of long-life
Technical field
The utility model is related to a kind of flat type power cable, more particularly to resistance to high radiation flat type electric power electricity of a kind of long-life Cable is suitable for the lv power cable of rated voltage 0.6/1kV, belongs to field of cable technology.
Background technology
The environment such as previous nuclear power station, special occasions elevator, crane or harsh medical treatment need removal cable to be used, face The risk frequently replaced.Essentially consist in round cable bending when be easy it is cracking in crooked outer surface, so as to cause electricity Cable damage cannot use.
Utility model content
For the power transmission requirement needed under the conditions of mobile environment, the utility model power cable problem to be solved Mainly have:Reduce bending radius when cable uses;Increase the service life of insulating materials;Increase the radiation resistance of cable;Add The softness of forceful electric power cable.The utility model cable is aided with specific material on the basis of improving movement cable configuration Material (and structural requirement of material) extends the service life of cable to reach, and can be useful under civilian, military, core environment Selection uses.
The technical solution used to solve above-mentioned technical problem
To realize the above-mentioned technical purpose, the utility model uses following technical scheme:
A kind of resistance to high radiation flat type power cable of long-life, structure are:
Including more identical cores, each core be arranged side by side constitute cable core, and the distance between adjacent two core with The diameter of core is identical;
It is overlapped wrapped plain weave non-woven fabrics twining package tape outside cable core and constitutes the outer lapping layer;Plain weave non-woven fabrics twining package tape with Gum filler is filled in gap between core;
Extrude sheath material constitutes oversheath outside the outer lapping layer, and it is fillet that finally constitute radial section, which be four angles, The cable of rectangular shape;
The structure of the core is:It is enclosed with wrapping layer outside conductor, insulating layer and the outer wrapping layer of insulation successively outside conductor;
The conductor is divided into that multilayer is twisted to be constituted by tin-coated copper monofilament from-inner-to-outer;The tin-coated copper monofilament of conductor innermost layer twists It is 12~18 to close lay ratio range, and it is 10~14 that the outermost tin-coated copper monofilament of conductor, which is twisted lay ratio range,;Tin-coated copper monofilament Diameter range be 0.32mm~3.80mm;The diameter range of conductor is 0.9mm~30.4mm;Outermost tin-coated copper monofilament Direction of lay is left-hand, and the direction of lay of the tin-coated copper monofilament of adjacent layer is opposite;
The outer wrapping layer of the conductor is constituted by the overlapping of thin non-woven fabric dextrad is wrapped;
The insulating layer is to extrude resistance to high the third Insulation Material of halogen-free flameproof second radiated by continuous vulcanization to constitute;
The outer wrapping layer of the insulation is constituted by the overlapping of low-smoke non-halogen flame-retardant twining package tape is wrapped.
The design principle of this cable is, since flat cable is when omnidirection is bent, can not to accomplish the bending of all directions Performance is consistent, especially lateral bending (each core around the same center of circle be bent) when it is just more difficult.For this purpose, this cable exists Under the premise of meeting service life and radiation hardness and requirement on electric performance, new design is carried out from structural point.
First, shell-less material between each cable core is allowed:It is found through overtesting, it is viscous right between protective cover material and cable core outer wall Bending property is affected.So each cable core side by side after, fill elastic adhesive tape, further around packet plain weave non-woven fabrics twining package tape.Nothing Friction is small between woven fabric and halogen-free flameproof twining package tape, when cable bend, frictional force between restrictive coating and cable core compared with It is small, and elastic adhesive tape filling ductility and compressible better performances, while obtaining filling effect, also to bending property Influence very little.
Next, for being isolated by wrapping layer between conductor and insulating layer, effect has, and avoids the monofilament gap of conductor Be embedded in Insulation Material and generate viscous possibility (since outermost layer monofilament quantity is more, the area that outer wall can be contacted with Insulation Material is big, It generates viscous area bigger, to the influence bigger of solid wire chip bending performance), and the conductor for avoiding metal material exists Under extreme case, alternating bending destroys insulating layer.
In addition, the bending property of conductor itself is an important factor for influencing cable bend performance, using specific in this programme Conductor under the premise of meeting electrical property, ensure good bending property.
Further, the number of the core is 2~5;The sectional area of conductor is 2.5mm in core2~630mm2;It is single The twisted lay ratio of core is not more than 14;
The number of the conductor (core) with insulating layer is 2~5 (can also be 1), to meet electric power electricity The requirement on electric performance of cable.
The nominal thickness of the thin non-woven fabric is 0.1mm, and width is 10~20mm, and the outer wrapping layer of conductor is wrapped puts up Rate is not less than 15%;
The nominal thickness of insulating layer is 1.0~2.8mm, and the thickness of insulating layer meets the requirement of GB/T 12706-2008.Absolutely 60 year service life radiation hardness second third that edge material can be selected insulate, such as:The cable insulating material of model XJ-32HB.To be promoted The radiation in the service life of cable and resistance to gamma ray.
The nominal thickness of low-smoke non-halogen flame-retardant twining package tape is 0.2mm, and width is 15~25mm, and insulate the wrapped of outer wrapping layer Cap rate is not less than 20%;Low-smoke non-halogen flame-retardant twining package tape lapping direction is left-hand.
The nominal thickness of plain weave non-woven fabrics is 0.15mm, and width is 25~35mm, and wrapped cap rate is not less than 20%.To Tightening cable core makes its rounding.
Further, protective cover material is thermoplastics type's EVA class elastomer sheathing materials.The minimum thickness of the oversheath is 1.8mm.Shield The cable jacket material of jacking such as model HW469-08.
Further, the length × width × height of the radial section of the cable is 8.0mm × (16.0mm~45mm) × 90mm.
Further, the gum filler is filling rubber item;Filling rubber item has more, they are mutually parallel;Every is filled out The outside for filling rubber item is equipped with the fin parallel with its axis, to reduce the global density of filling rubber item part.
Advantageous effect
After adopting the above technical scheme, the utility model has the advantages that:
(1) Cable Construction Design advantages of simple:More core wires are arranged in parallel, reduce the bending radius of bending direction, make Multicore cable is easier to be bent.And the process for reducing cable cabling makes the process of processing simply change, improve produce into Degree.
(2) stranded tinned copper conductor improves the electric conductivity of conductor, makes conductor more resistant to corrosion, it is possible to reduce copper oxygen Change (copper and the oxygen reflection generation CuO and Cu in air2O generation).
(3) low-smoke non-halogen flame-retardant ethylene-propylene rubber insulated layer, low-smoke non-halogen flame-retardant EVA thermoplastic sheaths make the construction of cable more Softness, minimum bending radius can reach 6 times of outside diameters of cable, more flexible, more convenient and the bendings such as hang suitable for ring and lay environment.
After abovementioned technology, the service life of this cable reaches 60 years or more, good bending property, Flouride-resistani acid phesphatase Well, processing performance is good, can effectively improve production efficiency.And meet the basic demand of electrical property and mechanical performance simultaneously.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure:1, conductor;2.1, the outer wrapping layer of conductor;2.2, insulate outer wrapping layer;2.3, the outer lapping layer;3, it insulate Layer;4, oversheath;5, gum filler;6, core.
Specific implementation mode
As shown in Figure 1, the long-life of this example resistance to high radiation flat type power cable, structure are:
Including more identical cores, each core be arranged side by side constitute cable core, and the distance between adjacent two core with The diameter of core is identical;
It is overlapped wrapped plain weave non-woven fabrics twining package tape outside cable core and constitutes the outer lapping layer;Plain weave non-woven fabrics twining package tape with Gum filler is filled in gap between core;
Extrude sheath material constitutes oversheath outside the outer lapping layer, and it is fillet that finally constitute radial section, which be four angles, The cable of rectangular shape;
The structure of the core is:It is enclosed with wrapping layer outside conductor, insulating layer and the outer wrapping layer of insulation successively outside conductor;
The conductor is divided into that multilayer is twisted to be constituted by tin-coated copper monofilament from-inner-to-outer;The tin-coated copper monofilament of conductor innermost layer twists It is 12~18 to close lay ratio range, and it is 10~14 that the outermost tin-coated copper monofilament of conductor, which is twisted lay ratio range,;Tin-coated copper monofilament Diameter range be 0.32mm~3.80mm;The diameter range of conductor is 0.9mm~30.4mm;Outermost tin-coated copper monofilament Direction of lay is left-hand, and the direction of lay of the tin-coated copper monofilament of adjacent layer is opposite;
The outer wrapping layer of the conductor is constituted by the overlapping of thin non-woven fabric dextrad is wrapped;
The insulating layer is to extrude resistance to high the third Insulation Material of halogen-free flameproof second radiated by continuous vulcanization to constitute;
The outer wrapping layer of the insulation is constituted by the overlapping of low-smoke non-halogen flame-retardant twining package tape is wrapped.
The number of the core is 2~5, and this example is 3;The sectional area of conductor is 2.5mm in core2~630mm2
The nominal thickness of the thin non-woven fabric is 0.1mm, and width is 10~20mm, and the outer wrapping layer of conductor is wrapped puts up Rate is not less than 15%;The outer wrapping layer of conductor is made of white thin non-woven fabric.
The nominal thickness of insulating layer is 1.0~2.8mm;
The nominal thickness of low-smoke non-halogen flame-retardant twining package tape is 0.2mm, and width is 15~25mm, and insulate the wrapped of outer wrapping layer Cap rate is not less than 20%;
The nominal thickness of the plain weave non-woven fabrics is 0.15mm, and width is 25~35mm, and wrapped cap rate is not less than 20%.
Protective cover material is thermoplastics type's EVA class elastomer sheathing materials.
The length × width × height of the radial section of the cable is 8.0mm × (16.0mm~45mm) × 90mm.
The gum filler is filling rubber item;Filling rubber item has more, they are mutually parallel;Every filling rubber item Outside be equipped with the fin parallel with its axis.
The minimum thickness of the oversheath is 1.8mm.The protective cover material of oversheath selects thermoplastics type's EVA class elastic body jackets Material, such as:The cable jacket material of model HW469-08.
The power cable of this example can be subjected to testing as follows, and test result is to pass through.

Claims (6)

1. resistance to high radiation flat type power cable of a kind of long-life, it is characterized in that structure is:
Including more identical cores, each core, which is arranged side by side, constitutes cable core, and the distance between adjacent two core and core Diameter it is identical;
It is overlapped wrapped plain weave non-woven fabrics twining package tape outside cable core and constitutes the outer lapping layer;In plain weave non-woven fabrics twining package tape and core Between gap in be filled with gum filler;
Extrude sheath material constitutes oversheath outside the outer lapping layer, and it is the rectangular of fillet that finally constitute radial section, which be four angles, The cable of shape shape;
The structure of the core is:It is enclosed with wrapping layer outside conductor, insulating layer and the outer wrapping layer of insulation successively outside conductor;
The conductor is divided into that multilayer is twisted to be constituted by tin-coated copper monofilament from-inner-to-outer;The twisted section of the tin-coated copper monofilament of conductor innermost layer Diameter is 12~18 than range, and it is 10~14 that the outermost tin-coated copper monofilament of conductor, which is twisted lay ratio range,;Tin-coated copper monofilament it is straight Diameter range is 0.32mm~3.80mm;The diameter range of conductor is 0.9mm~30.4mm;Outermost tin-coated copper monofilament is twisted Direction is left-hand, and the direction of lay of the tin-coated copper monofilament of adjacent layer is opposite;
The outer wrapping layer of the conductor is constituted by the overlapping of thin non-woven fabric dextrad is wrapped;
The insulating layer is to extrude resistance to high the third Insulation Material of halogen-free flameproof second radiated by continuous vulcanization to constitute;
The outer wrapping layer of the insulation is constituted by the overlapping of low-smoke non-halogen flame-retardant twining package tape is wrapped.
2. long-life according to claim 1 resistance to high radiation flat type power cable, it is characterized in that the number of the core is 2 ~5;The sectional area of conductor is 2.5mm in core2~630mm2
The nominal thickness of the thin non-woven fabric is 0.1mm, and width is 10~20mm, the outer wrapping layer of conductor be wrapped cap rate not Less than 15%;
The nominal thickness of insulating layer is 1.0~2.8mm;
The nominal thickness of low-smoke non-halogen flame-retardant twining package tape is 0.2mm, and width is 15~25mm, and outer the wrapped of wrapping layer that insulate is put up Rate is not less than 20%;
The nominal thickness of the plain weave non-woven fabrics is 0.15mm, and width is 25~35mm, and wrapped cap rate is not less than 20%.
3. long-life according to claim 1 resistance to high radiation flat type power cable, it is characterized in that protective cover material is thermoplastics type EVA Class elastomer sheathing material.
4. long-life according to claim 1 resistance to high radiation flat type power cable, it is characterized in that the radial direction of the cable is cut The length × width × height in face is 8.0mm × (16.0mm~45mm) × 90mm.
5. long-life according to claim 1 resistance to high radiation flat type power cable, it is characterized in that the gum filler is to fill out Fill rubber item;Filling rubber item has more, they are mutually parallel;The outside of every filling rubber item is equipped with parallel with its axis Fin.
6. long-life according to claim 1 resistance to high radiation flat type power cable, it is characterized in that the minimum of the oversheath Thickness is 1.8mm.
CN201820316005.9U 2018-03-08 2018-03-08 A kind of resistance to high radiation flat type power cable of long-life Active CN207883386U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113856048A (en) * 2021-10-09 2021-12-31 上海神奕医疗科技有限公司 Electrical leads, methods of fabrication, extension cords, electrodes and electrical stimulation systems
WO2022068037A1 (en) * 2020-09-30 2022-04-07 中天科技装备电缆有限公司 Photoelectric composite medium-voltage shore power cable, and manufacturing process therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022068037A1 (en) * 2020-09-30 2022-04-07 中天科技装备电缆有限公司 Photoelectric composite medium-voltage shore power cable, and manufacturing process therefor
CN113856048A (en) * 2021-10-09 2021-12-31 上海神奕医疗科技有限公司 Electrical leads, methods of fabrication, extension cords, electrodes and electrical stimulation systems

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