CN217061576U - Low-temperature-cold-resistant power cable - Google Patents
Low-temperature-cold-resistant power cable Download PDFInfo
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- CN217061576U CN217061576U CN202220711532.6U CN202220711532U CN217061576U CN 217061576 U CN217061576 U CN 217061576U CN 202220711532 U CN202220711532 U CN 202220711532U CN 217061576 U CN217061576 U CN 217061576U
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- low temperature
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Abstract
The utility model discloses a cold-type power cable of low temperature resistant cold type, including leading body leading external crowded semiconductive shield layer, crosslinked insulating layer, outer semiconductive shield layer, metallic shield in the three-layer in proper order constitute the sinle silk, pack cold-resistant asbestos rope in the sinle silk outside, at the cold-resistant rubber tape of the outer cladding multilayer of cold-resistant asbestos rope, then around package water-blocking tape, the cold-resistant cage of crowded package again, the anticorrosive steel band of recoiling multilayer, the cold-resistant polyethylene oversheath layer of the crowded package one deck at last. The utility model discloses have good electric conductive property, adopt the cold-resistant polyethylene material that reaches minus 50 ℃, ensure that the cable is under the low temperature environment condition, and the security in the cable operation has been ensured to the anticorrosive steel band protection of cable under the secret water condition, and the cold-resistant polyethylene sheath material that reaches minus 50 ℃.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a low temperature resistant cold type power cable for the power supply system of the electric wire netting power supply system in the north of china to the higher place of low temperature resistant cold power consumption safety.
Background
At present, in the urban power grid in northern China, cables cannot meet the requirements of local environments due to the low-temperature cold resistance of the cables during laying and installation, the outer sheaths and the insulating layers of the cables are prone to cracking and damage, potential safety hazards are brought to the cables which are put into operation, and regional power failure can be brought to the cables. The low temperature and cold resistant power cable developed by people can reduce disasters caused by faults, and is obligated to participate in the development process as a professional manufacturer of the wire and cable, and is matched with the reform of the supply side in China to be smoothly carried out.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a low temperature cold-resistant type power cable in order to compensate prior art's defect for solve the power supply cable of the high place of china's northern electric wire netting power supply system to low temperature cold-resistant power consumption safety, ensure that the cable moves safely in moving under minus 50 ℃ of ambient temperature.
The utility model discloses a realize through following technical scheme:
the utility model provides a cold-type power cable of low temperature resistant cold, is including leading the body leading external in the three-layer semiconductive shield layer, crosslinked insulating layer, outer semiconductive shield layer, metallic shield layer constitute the sinle silk of crowded altogether in proper order, fill cold-resistant asbestos rope in the sinle silk outside, at the cold-resistant asbestos rope outer cladding multilayer cold-resistant rubber tape of cold-resistant asbestos rope, then around wrapping the water-blocking tape, crowded cold-resistant separation sleeve of package again, again around wrapping the anticorrosive steel band of multilayer, crowded cold-resistant polyethylene oversheath layer of one deck of package at last.
The main conductor is formed by twisting a plurality of oxygen-free copper wire bundles.
The cold-resistant rubber has three layers, and the anticorrosive steel belt has two layers.
The utility model has the advantages that: the utility model discloses have good electric conductive property, adopt cold-resistant polyethylene material that reaches minus 50 ℃, ensure that the cable is under the low temperature environmental condition, safe operation, cable have the anticorrosive steel band protection under the water condition underground, cold-resistant polyethylene sheath material that reaches minus 50 ℃ has ensured the security in the cable operation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, a low temperature and cold resistant power cable comprises a main conductor 1, wherein a three-layer inner semiconductive shielding layer 2, a crosslinked insulating layer 3, an outer semiconductive shielding layer 4 and a metal shielding layer 5 are sequentially co-extruded outside the main conductor to form a wire core, a cold resistant asbestos cord 6 is filled outside the wire core, a plurality of layers of cold resistant rubber belts 7 are coated outside the cold resistant asbestos cord 6, then a water blocking belt 8 is wound, a cold resistant isolating sleeve 9 is extruded, a plurality of layers of anticorrosive steel belts 10 are wound, and finally a cold resistant polyethylene outer sheath layer 11 is extruded. The cold-resistant isolation sleeve is made of polyethylene material with the cold-resistant grade reaching minus 50 ℃.
The main conductor 1 is formed by twisting a plurality of oxygen-free copper wire bundles.
The cold-resistant rubber belt 7 has three layers, and the corrosion-resistant steel belt 10 has two layers.
The conductor 1 has good conductive performance; the inner semiconductor is shielded by cold-resistant polyethylene; the cable is made of cold-resistant cross-linked polyethylene material with the voltage of 35kV or below for insulation, so that the cable can safely operate under the condition of lower environmental temperature; the outer semiconductor is shielded by cold-resistant polyethylene; the metal copper strip shield plays roles in electric field shielding and grounding; filling with cold-resistant asbestos rope; the wrapping waterproof tape mainly plays a waterproof role; the coating of the multi-layer cold-resistant rubber belt and the extrusion coating of the cold-resistant polyethylene mainly play a role in protection; the anti-corrosion steel belt plays an external protection role; the cold-resistant polyethylene outer sheath plays a role in low-temperature protection; ink jet printing serves as a marking.
Claims (4)
1. The utility model provides a low temperature resistant cold type power cable which characterized in that: including leading conductor the main conductor outside in the three-layer in the crowded semiconductive shield layer, crosslinked insulating layer, outer semiconductive shield layer, the metallic shield layer constitute the sinle silk in proper order, pack cold-resistant asbestos rope outside the sinle silk, at the cold-resistant asbestos rope outsourcing cold-resistant rubber bands of multilayer, then around wrapping the waterproofing area, crowded cold-resistant separation sleeve of package again, again around wrapping the anticorrosive steel band of multilayer, crowded cold-resistant polyethylene oversheath layer of one deck at last.
2. The low temperature and cold resistant power cable according to claim 1, characterized in that: the main conductor is formed by twisting a plurality of oxygen-free copper wire bundles.
3. The low temperature and cold resistant power cable according to claim 1, characterized in that: the cold-resistant rubber has three layers, and the anticorrosive steel belt has two layers.
4. The low temperature and cold resistant power cable according to claim 1, wherein: and printing a product mark on the cold-resistant polyethylene outer sheath layer in an ink-jet manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220711532.6U CN217061576U (en) | 2022-03-29 | 2022-03-29 | Low-temperature-cold-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220711532.6U CN217061576U (en) | 2022-03-29 | 2022-03-29 | Low-temperature-cold-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217061576U true CN217061576U (en) | 2022-07-26 |
Family
ID=82466339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220711532.6U Active CN217061576U (en) | 2022-03-29 | 2022-03-29 | Low-temperature-cold-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217061576U (en) |
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2022
- 2022-03-29 CN CN202220711532.6U patent/CN217061576U/en active Active
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