CN217468015U - Irradiation rubber low-voltage wire and cable - Google Patents
Irradiation rubber low-voltage wire and cable Download PDFInfo
- Publication number
- CN217468015U CN217468015U CN202123095974.7U CN202123095974U CN217468015U CN 217468015 U CN217468015 U CN 217468015U CN 202123095974 U CN202123095974 U CN 202123095974U CN 217468015 U CN217468015 U CN 217468015U
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- irradiation
- cable
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- voltage wire
- rubber low
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- 238000001125 extrusion Methods 0.000 claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 150000001336 alkenes Chemical class 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- 238000009941 weaving Methods 0.000 claims 2
- 229920004933 Terylene® Polymers 0.000 claims 1
- 238000009940 knitting Methods 0.000 claims 1
- 239000005020 polyethylene terephthalate Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 12
- 238000004132 cross linking Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 9
- 230000032683 aging Effects 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 229920000098 polyolefin Polymers 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 32
- 238000012856 packing Methods 0.000 description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Organic Insulating Materials (AREA)
Abstract
The utility model relates to a cable manufacture technical field, in particular to irradiation rubber low voltage wire and cable. The cable core comprises cable cores which are formed by arranging 3 conductor cores with the same cross sections in a delta shape, wherein each conductor core is formed by combining 7 round-center conductors, the outer layer of each conductor core is an irradiation insulating layer, an irradiation extrusion filling inner sheath layer is arranged outside the irradiation insulating layer to form a round structure, and an outer sheath is arranged outside the irradiation extrusion filling inner sheath layer. Under the same diameter, the cable has large current-carrying capacity and large insulation resistance, and meanwhile, the polyolefin material after irradiation crosslinking has high-temperature resistance grade and high aging temperature, so that the service life of cyclic heating of the cable in the use process is prolonged; as the materials adopted by the cable are all halogen-free environment-friendly materials, the combustion characteristic of the cable meets the environment-friendly requirement.
Description
Technical Field
The utility model relates to a cable manufacturing technical field, in particular to irradiation rubber low voltage wire and cable.
Background
The wire and cable industry is the second industry in China next to the automobile industry, and both the product variety satisfaction rate and the domestic market share rate exceed 90%. The total output value of the electric wire and the electric cable in China exceeds the United states worldwide, and the electric wire and the electric cable become the first country for producing the electric wire and the electric cable in the world. Along with the high-speed development of the China wire and cable industry, the number of newly added enterprises is continuously increased, and the overall technical level of the industry is greatly improved.
The Chinese economy continues to increase rapidly, a huge market space is provided for cable products, and the Chinese market is strongly tempted, so that the world focuses on the Chinese market. With the continuous enlargement of the scales of industries such as the Chinese power industry, the data communication industry, the urban rail transit industry, the automobile industry, the shipbuilding industry and the like, the demand on wires and cables is rapidly increased, and the wire and cable industry has huge development potential in the future.
Currently, power cables using crosslinked polyethylene insulation or polypropylene copolymer as an insulation material are common to electric wires and cables. And the insulation layer is formed by two common ways in the low-voltage wire cable at present. The low voltage cables prepared in both ways are usually large in outer diameter to achieve insulation, resulting in poor flexibility. And the high and low temperature resistance of such cables is relatively poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an irradiation rubber low tension cable for the insulating mode that solves present common low tension cable and use always has that the cable hardness that the insulating layer thickness leads to is high, flexible poor, and the poor problem of high low temperature resistant performance also is the market competition in order to improve company's product simultaneously.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides an irradiation rubber low voltage cable, includes that the wire sinle silk that is the same by 3 cross-sections is the cable core of article font and arranges the constitution, and every wire sinle silk is inside to be formed by 7 round core conductor combinations, and the skin of wire sinle silk is the irradiation insulating layer, sets up irradiation extrusion outside the irradiation insulating layer and fills inner sheath layer and form circular structure, is provided with the oversheath outside irradiation extrusion packing inner sheath layer.
Preferably, the filling holes are arranged in the irradiation extrusion filling inner sheath layer at the periphery of the wire cores between two adjacent wire cores.
The working principle of the irradiation cable is as follows: the irradiation crosslinking bombards the insulating layer and the sheath by using high-energy electron beams generated by an electron accelerator to break the macromolecular chain, and each broken point becomes a free radical. The free radicals are unstable and need to be recombined with each other, and the original chain-like molecular structure is changed into a three-dimensional net-like molecular structure after recombination to form crosslinking.
By utilizing the advantages of the irradiation cable, the arrangement of functional layers is reduced, and the irradiation extrusion is utilized to fill the inner sheath layer, so that better insulation and flame retardant effects are achieved; simultaneously, if irradiation extrusion packing inner sheath layer thickness is great, can cause the flexibility variation of motor, consequently, set up the filling hole in irradiation extrusion packing inner sheath layer, utilize the filling hole to reduce holistic rigidity to make the cable can have better flexibility, more made things convenient for the use of cable. Meanwhile, due to the characteristics of the irradiation cable, the cable has better high and low temperature resistance.
Preferably, the radiation extrusion filling inner sheath layer is externally provided with a braided shielding layer.
Preferably, a braided reinforcing frame is arranged in the outer sheath.
Preferably, a waterproof layer is arranged on the inner side of the outer sheath.
Preferably, the woven reinforcing frame is a polyester woven net.
Preferably, the waterproof layer is a waterproof tape.
Preferably, the irradiated insulating layer is irradiated olefin.
Preferably, the irradiation extrusion filling inner sheath layer is irradiation rubber.
The utility model has the advantages that: under the same diameter, the current-carrying capacity is large, the insulation resistance is large, and the phenomenon that the insulation resistance is reduced because the pre-crosslinking occurs during crosslinking and the insulation layer absorbs moisture in the air is avoided by adopting hydroxide as a flame retardant, so that the insulation resistance value is ensured; the polyolefin material after irradiation crosslinking has high temperature resistance and aging temperature, so the service life of the cable which circularly heats in the using process is prolonged; as the materials adopted by the cable are all halogen-free environment-friendly materials, the combustion characteristic of the cable meets the environment-friendly requirement.
Drawings
Fig. 1 shows a schematic structural diagram of the present invention.
In the figure: 1 wire sinle silk, 2 cable core, 3 centre of a circle conductors, 4 irradiation insulating layers, 5 irradiation extrusion packing inner sheath layer, 6 oversheath, 7 filling hole, 8 braided shield, 9 braided reinforcement frame, 10 waterproof layers.
Detailed Description
Further refinements will now be made on the basis of the representative embodiments shown in the figures, and in which reference is made to the accompanying drawings which form a part of the description, in which specific embodiments according to said embodiments are shown by way of illustration.
As shown in figure 1, the present case provides an irradiation rubber low-voltage electric wire cable, the cable includes the cable core 2 that is arranged by the triangle of 3 wire sinle silks 1 that the cross-section is the same, every wire sinle silk 1 is inside to be formed by 7 with the centre of a circle conductors 3 combination of footpath, the skin of wire sinle silk 1 is irradiation insulating layer 4, irradiation insulating layer 4 is irradiation alkene, irradiation extrusion packing inner sheath layer 5 forms circular structure outside irradiation insulating layer 4, irradiation extrusion packing inner sheath layer 5 is irradiation rubber, be provided with oversheath 6 outside irradiation extrusion packing inner sheath layer 5, oversheath 6 is wear-resisting irradiation rubber. In order to improve the flexibility performance of the whole cable, a filling hole 7 is formed in the irradiation extrusion filling inner sheath layer 5, which is positioned between two adjacent wire cores 1 and on the periphery of the wire cores 1.
Then a braided shielding layer 8 is arranged outside the irradiation extrusion filling inner sheath layer 5, a braided reinforcing frame 9 is arranged in the outer sheath 6, the braided reinforcing frame 9 is a polyester braided net, and a waterproof layer 10 consisting of waterproof belts is arranged on the inner side of the outer sheath 6.
Compared with the traditional cable, the irradiation rubber low-voltage wire and cable prepared by the scheme has large current-carrying capacity and large insulation resistance under the same outer diameter, and avoids the adoption of hydroxide as a flame retardant, so that the phenomena of pre-crosslinking during crosslinking and reduction of the insulation resistance due to the fact that an insulating layer absorbs moisture in the air are prevented, and the insulation resistance value is ensured; the polyolefin material after irradiation crosslinking has high temperature resistance and aging temperature, so the service life of the cable in the use process of cyclic heating is prolonged; as the materials adopted by the cable are all halogen-free environment-friendly materials, the combustion characteristic of the cable meets the environment-friendly requirement.
For purposes of explanation, specific nomenclature is used in the above description to provide a thorough understanding of the described embodiments. It will be apparent, however, to one skilled in the art that certain modifications, combinations, and variations are possible in light of the above teachings.
Claims (9)
1. An irradiation rubber low voltage wire and cable which characterized in that: the cable core comprises cable cores (2) which are formed by arranging 3 wire cores (1) with the same cross section in a triangular shape, wherein each wire core (1) is formed by combining 7 round-core conductors (3), the outer layer of each wire core (1) is an irradiation insulating layer (4), an irradiation extrusion filling inner sheath layer (5) is arranged outside each irradiation insulating layer (4) to form a circular structure, and an outer sheath (6) is arranged outside each irradiation extrusion filling inner sheath layer (5).
2. The irradiated rubber low-voltage wire cable according to claim 1, wherein: and a filling hole (7) is arranged in the irradiation extrusion filling inner sheath layer (5) between two adjacent wire cores (1) at the periphery of the wire core (1).
3. The irradiated rubber low-voltage wire cable according to claim 1, wherein: a braided shielding layer (8) is arranged outside the irradiation extrusion filling inner sheath layer (5).
4. The irradiated rubber low-voltage wire cable according to claim 1, wherein: the outer sheath (6) is internally provided with a knitting reinforcing frame (9).
5. The irradiated rubber low-voltage wire cable according to claim 1, wherein: a waterproof layer (10) is arranged on the inner side of the outer sheath (6).
6. The irradiated rubber low-voltage wire and cable as claimed in claim 4, wherein: the weaving reinforcing frame (9) is a terylene weaving net.
7. The irradiated rubber low-voltage wire cable as claimed in claim 5, wherein: the waterproof layer (10) is a waterproof belt.
8. The irradiated rubber low-voltage wire cable according to claim 1, wherein: the irradiation insulating layer (4) is irradiation olefin.
9. The irradiated rubber low-voltage wire cable according to claim 1, wherein: the irradiation extrusion filling inner sheath layer (5) is irradiation rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123095974.7U CN217468015U (en) | 2021-12-10 | 2021-12-10 | Irradiation rubber low-voltage wire and cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123095974.7U CN217468015U (en) | 2021-12-10 | 2021-12-10 | Irradiation rubber low-voltage wire and cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217468015U true CN217468015U (en) | 2022-09-20 |
Family
ID=83233389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123095974.7U Active CN217468015U (en) | 2021-12-10 | 2021-12-10 | Irradiation rubber low-voltage wire and cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217468015U (en) |
-
2021
- 2021-12-10 CN CN202123095974.7U patent/CN217468015U/en active Active
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