CN221327415U - Radiation crosslinked polyethylene insulation low-voltage power cable - Google Patents
Radiation crosslinked polyethylene insulation low-voltage power cable Download PDFInfo
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- CN221327415U CN221327415U CN202323137665.0U CN202323137665U CN221327415U CN 221327415 U CN221327415 U CN 221327415U CN 202323137665 U CN202323137665 U CN 202323137665U CN 221327415 U CN221327415 U CN 221327415U
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- Prior art keywords
- low
- sleeve
- voltage
- power cable
- heat
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- 229920003020 cross-linked polyethylene Polymers 0.000 title claims description 7
- 239000004703 cross-linked polyethylene Substances 0.000 title claims description 7
- 230000005855 radiation Effects 0.000 title claims description 7
- 238000009413 insulation Methods 0.000 title abstract description 14
- 239000010410 layer Substances 0.000 claims abstract description 37
- 239000010985 leather Substances 0.000 claims abstract description 26
- 239000011241 protective layer Substances 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 11
- -1 polyethylene Polymers 0.000 claims abstract description 11
- 229920000573 polyethylene Polymers 0.000 claims abstract description 11
- 239000004642 Polyimide Substances 0.000 claims abstract description 10
- 229920001721 polyimide Polymers 0.000 claims abstract description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 9
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 9
- 239000004917 carbon fiber Substances 0.000 claims abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920002635 polyurethane Polymers 0.000 claims abstract description 9
- 239000004814 polyurethane Substances 0.000 claims abstract description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims abstract description 8
- 150000002148 esters Chemical class 0.000 claims abstract description 8
- 229920000570 polyether Polymers 0.000 claims abstract description 8
- 239000004719 irradiation crosslinked polyethylene Substances 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses an irradiation crosslinked polyethylene insulated low-voltage power cable, which comprises a power cable main body, wherein the power cable main body comprises a heat-resistant protective layer, a structure reinforcing layer, a low-voltage protective layer, a cable core protective sleeve and a cable core main body, the heat-resistant protective layer comprises a heat-resistant polyether ester leather sheath, a polyimide leather sheath and a heat-resistant rubber leather sheath, the structure reinforcing layer comprises an aramid fiber sleeve, a glass fiber sleeve and a carbon fiber sleeve, and the low-voltage protective layer comprises a low-voltage insulating sleeve, a low-voltage polyethylene sleeve, a low-voltage polyvinyl chloride sleeve and a low-voltage polyurethane sleeve. According to the utility model, the heat-resistant design protection is carried out on the outer surface of the power cable, so that the damage caused by irradiation crosslinking test of the cable can be effectively reduced, and meanwhile, the structure of the cable is reinforced and protected, so that the cable has good structural rigidity and is not easy to damage, and the insulation and low-voltage protection effects can be further achieved by the low-voltage protection layer.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to an irradiation crosslinked polyethylene insulation low-voltage power cable.
Background
The power cable is a cable for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river. In the electric power line, the proportion of the cable is gradually increasing. Power cables are cable products used in the main line of power systems to transmit and distribute high power electrical energy, including various voltage classes of 1-500KV and above, and various insulated power cables.
The chinese issued patent document with publication number CN206564143U discloses a power cable comprising: an outer sheath; a shielding sheath disposed within the outer sheath; six insulated phase lines and a grounding wire are arranged in the shielding sheath, the six insulated phase lines are uniformly distributed on the periphery of the grounding wire and are in a three-phase geometrical symmetrical arrangement structure, wherein two insulated phase lines in the same phase are respectively symmetrically arranged at 180 degrees relative to the grounding wire; and an insulating filler filled between the shielding sheath and the phase line with insulation. The power cable can reduce electromagnetic interference, distributed capacitance and operation temperature of the power cable and prolong the service life of the power cable. The power cable is suitable for a frequency converter power cable.
When the power cable in the prior art is subjected to irradiation crosslinking test, the power cable does not have a good heat-resistant protection effect and is easy to damage the cable, so that the irradiation crosslinking polyethylene insulation power cable needs to be developed.
Disclosure of utility model
The utility model aims to provide an irradiation crosslinking polyethylene insulated low-voltage power cable, which solves the problems that the power cable in the prior art provided in the background art has no good heat-resistant protection effect and is easy to damage the cable when being subjected to irradiation crosslinking test.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the irradiation crosslinked polyethylene insulation low-voltage power cable comprises a power cable main body, wherein the power cable main body comprises a heat-resistant protection layer, a structural reinforcing layer, a low-voltage protection layer, a cable core protection sleeve and a cable core main body, the heat-resistant protection layer comprises a heat-resistant polyether ester leather sheath, a polyimide leather sheath and a heat-resistant rubber leather sheath, the structural reinforcing layer comprises an aramid fiber sleeve, a glass fiber sleeve and a carbon fiber sleeve, and the low-voltage protection layer comprises a low-voltage insulation sleeve, a low-voltage polyethylene sleeve, a low-voltage polyvinyl chloride sleeve and a low-voltage polyurethane sleeve.
Based on the above, the heat-resistant protective layer is wrapped on the outer surface of the structural reinforcing layer, and the structural reinforcing layer is wrapped on the outer surface of the low-pressure protective layer.
Based on the above, the low-voltage protection layer is wrapped on the outer surface of the cable core protection sleeve, and the cable core protection sleeve is wrapped on the outer surface of the cable core main body.
Based on the above, the heat-resistant polyether ester leather sheath is arranged on the outer surface of the polyimide leather sheath, and the heat-resistant rubber leather sheath is arranged on the inner surface of the polyimide leather sheath.
Based on the above, the aramid fiber sleeve is wrapped on the outer surface of the glass fiber sleeve, and the glass fiber sleeve is wrapped on the outer surface of the carbon fiber sleeve.
Based on the above, the low-voltage insulating sleeve, the low-voltage polyethylene sleeve, the low-voltage polyvinyl chloride sleeve and the low-voltage polyurethane sleeve are tightly adhered and fixed through the adhesive.
Based on the above, the thickness of the heat-resistant protective layer is 0.5-0.8mm, the thickness of the structural reinforcing layer is 0.65-0.75mm, and the thickness of the low-pressure protective layer is 1.2-1.6mm.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the heat-resistant design protection is carried out on the outer surface of the power cable, so that the damage caused by irradiation crosslinking test of the cable can be effectively reduced, and meanwhile, the structure of the cable is reinforced and protected, so that the cable has good structural rigidity and is not easy to damage, and the insulation and low-voltage protection effects can be further achieved by the low-voltage protection layer.
Drawings
FIG. 1 is an overall cross-sectional view of a power cable body of the present utility model;
FIG. 2 is a schematic diagram showing the internal constitution of the heat-resistant protective layer according to the present utility model;
FIG. 3 is a schematic view of the internal structure of the structural reinforcement layer of the present utility model;
FIG. 4 is a schematic diagram showing the internal structure of the low-voltage protection layer according to the present utility model.
In the figure: 1. a power cable body; 2. a heat-resistant protective layer; 3. a structural reinforcement layer; 4. a low-voltage protective layer; 5. a cable core protective sleeve; 6. a cable core body; 7. a heat resistant polyether ester leather sheath; 8. polyimide leather sheath; 9. a heat resistant rubber leather sheath; 10. an aramid fiber sleeve; 11. a glass fiber sleeve; 12. a carbon fiber sleeve; 13. a low voltage insulating sleeve; 14. a low pressure polyethylene jacket; 15. a low pressure polyvinyl chloride jacket; 16. a low pressure polyurethane sleeve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, an embodiment of the present utility model is provided: the irradiation crosslinked polyethylene insulation low voltage power cable comprises a power cable main body 1, and is characterized in that the power cable main body 1 comprises a heat-resistant protective layer 2, a structural reinforcing layer 3, a low voltage protective layer 4, a cable core protective sleeve 5 and a cable core main body 6, the heat-resistant protective layer 2 comprises a heat-resistant polyether ester leather sheath 7, a polyimide leather sheath 8 and a heat-resistant rubber leather sheath 9, the structural reinforcing layer 3 comprises an aramid fiber sleeve 10, a glass fiber sleeve 11 and a carbon fiber sleeve 12, and the low voltage protective layer 4 comprises a low voltage insulation sleeve 13, a low voltage polyethylene sleeve 14, a low voltage polyvinyl chloride sleeve 15 and a low voltage polyurethane sleeve 16.
Further, the heat-resistant protection layer 2 wraps the outer surface of the structure reinforcing layer 3, the structure reinforcing layer 3 wraps the outer surface of the low-voltage protection layer 4, and the heat-resistant protection layer 2, the structure reinforcing layer 3 and the low-voltage protection layer 4 can wrap and protect the cable layer by layer.
Further, the low-voltage protection layer 4 wraps the outer surface of the cable core protection sleeve 5, the cable core protection sleeve 5 wraps the outer surface of the cable core main body 6, and the cable core protection sleeve 5 can provide good wrapping protection for the cable core main body 6.
Further, the heat-resistant polyether ester leather sheath 7 is arranged on the outer surface of the polyimide leather sheath 8, the heat-resistant rubber leather sheath 9 is arranged on the inner surface of the polyimide leather sheath 8, and the heat-resistant polyether ester leather sheath 7, the polyimide leather sheath 8 and the heat-resistant rubber leather sheath 9 have the advantage of good heat resistance, so that the damage to the cable caused by irradiation crosslinking test can be effectively reduced.
Further, the aramid fiber sleeve 10 is wrapped on the outer surface of the glass fiber sleeve 11, the glass fiber sleeve 11 is wrapped on the outer surface of the carbon fiber sleeve 12, the aramid fiber sleeve 10, the glass fiber sleeve 11 and the carbon fiber sleeve 12 are all high in structural strength, the sleeve structure is not easy to damage, the overall structural strength and rigidity of the cable can be improved, and the cable is not easy to damage.
Further, the low-voltage insulation sleeve 13, the low-voltage polyethylene sleeve 14, the low-voltage polyvinyl chloride sleeve 15 and the low-voltage polyurethane sleeve 16 are tightly adhered and fixed through an adhesive, and the low-voltage insulation sleeve 13, the low-voltage polyethylene sleeve 14, the low-voltage polyvinyl chloride sleeve 15 and the low-voltage polyurethane sleeve 16 provide good low-voltage insulation protection effect through layer-by-layer package protection on a cable core.
Further, the thickness of the heat-resistant protective layer 2 is 0.5 to 0.8mm, the thickness of the structural reinforcement layer 3 is 0.65 to 0.75mm, and the thickness of the low-pressure protective layer 4 is 1.2 to 1.6mm.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Standard parts used in the document of the application can be purchased from the market, the specific connection modes of the parts are connected by adopting conventional means such as mature bolts, rivets and welding in the prior art, and the machines, the parts and the equipment are of conventional types in the prior art, and the circuit connection adopts the conventional connection modes in the prior art, so that the specific description is not made.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an insulating low voltage power cable of irradiation crosslinked polyethylene, includes power cable main part (1), its characterized in that, the inside of power cable main part (1) includes heat-resisting protective layer (2), structure enhancement layer (3), low pressure protective layer (4), cable core protective sheath (5) and cable core main part (6), and the inside of heat-resisting protective layer (2) includes heat-resisting polyether ester leather sheath (7), polyimide leather sheath (8) and heat-resisting rubber leather sheath (9), the inside of structure enhancement layer (3) includes aramid fiber sleeve (10), glass fiber sleeve (11) and carbon fiber sleeve (12), the inside of low pressure protective layer (4) includes low pressure insulating sleeve (13), low pressure polyethylene sleeve (14), low pressure polyvinyl chloride sleeve (15) and low pressure polyurethane sleeve (16).
2. The radiation crosslinked polyethylene insulated low voltage power cable according to claim 1, wherein: the heat-resistant protective layer (2) is wrapped on the outer surface of the structural reinforcing layer (3), and the structural reinforcing layer (3) is wrapped on the outer surface of the low-pressure protective layer (4).
3. The radiation crosslinked polyethylene insulated low voltage power cable according to claim 1, wherein: the low-voltage protection layer (4) is wrapped on the outer surface of the cable core protection sleeve (5), and the cable core protection sleeve (5) is wrapped on the outer surface of the cable core main body (6).
4. The radiation crosslinked polyethylene insulated low voltage power cable according to claim 1, wherein: the aramid fiber sleeve (10) is wrapped on the outer surface of the glass fiber sleeve (11), and the glass fiber sleeve (11) is wrapped on the outer surface of the carbon fiber sleeve (12).
5. The radiation crosslinked polyethylene insulated low voltage power cable according to claim 1, wherein: the low-voltage insulating sleeve (13), the low-voltage polyethylene sleeve (14), the low-voltage polyvinyl chloride sleeve (15) and the low-voltage polyurethane sleeve (16) are tightly adhered and fixed through an adhesive.
6. The radiation crosslinked polyethylene insulated low voltage power cable according to claim 1, wherein: the thickness of the heat-resistant protective layer (2) is 0.5-0.8mm, the thickness of the structural reinforcing layer (3) is 0.65-0.75mm, and the thickness of the low-pressure protective layer (4) is 1.2-1.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323137665.0U CN221327415U (en) | 2023-11-21 | 2023-11-21 | Radiation crosslinked polyethylene insulation low-voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323137665.0U CN221327415U (en) | 2023-11-21 | 2023-11-21 | Radiation crosslinked polyethylene insulation low-voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221327415U true CN221327415U (en) | 2024-07-12 |
Family
ID=91797338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323137665.0U Active CN221327415U (en) | 2023-11-21 | 2023-11-21 | Radiation crosslinked polyethylene insulation low-voltage power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221327415U (en) |
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2023
- 2023-11-21 CN CN202323137665.0U patent/CN221327415U/en active Active
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