CN201413731Y - Environmental-protection safety type high-medium voltage fire-resistant electric power cable - Google Patents
Environmental-protection safety type high-medium voltage fire-resistant electric power cable Download PDFInfo
- Publication number
- CN201413731Y CN201413731Y CN2009200462912U CN200920046291U CN201413731Y CN 201413731 Y CN201413731 Y CN 201413731Y CN 2009200462912 U CN2009200462912 U CN 2009200462912U CN 200920046291 U CN200920046291 U CN 200920046291U CN 201413731 Y CN201413731 Y CN 201413731Y
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- power cable
- fire
- electric power
- safety type
- medium voltage
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Abstract
The utility model relates to an environmental-protection safety type high-medium voltage fire-resistant electric power cable, belonging to the field of electric cable technology. The electric power cable comprises four insulating wire cores, and a heat-insulating layer, a temperature reduction layer, a fire-proofing layer and an inflaming-retarding outer-protection layer are sequentially arrangedoutside a cable core which is formed by twisting the wire cores mutually. The electric power cable not only has good electrical properties, but also has good fire-resistant performance, thereby solving the contradiction of the electrical properties of the high-medium voltage fire-resistant electric power cable and the fire-resistant performance and meeting the market requirements.
Description
Technical field
The utility model relates to a kind of environmental protection and safety type mesohigh fireproof power cable, belongs to the cable technology field.
Background technology
Along with the quickening of Chinese society economic construction paces, fireproof power cable is widely used in important places such as skyscraper, subway, power plant, nuclear power station, tunnel.Because the particularity of mesohigh power cable structure, present fireproof power cable electric pressure are all at 1KV and following, and some need the occasion of mesohigh power transmission and distribution because do not have mesohigh fireproof power cable, its security performance to can not get ensureing.
The utility model content
The utility model purpose is to provide a kind of environmental protection and safety type mesohigh fireproof power cable.
The utility model comprises that four thoroughly do away with the edge core, and the cable core of the mutual stranded formation of described core is provided with heat insulation layer, cooling layer, retaining fire bed and fire-retardant outer jacket outward successively.
The beneficial effects of the utility model are: fire-retardant outer jacket plays fire retardation; The retaining fire bed is made of metal material, plays the effect of retaining fire; What cooling layer adopted special development extrudes the flame retardant type cooling material, and this material can be emitted a large amount of moisture content under hot conditions, and water evaporates can absorb heats in a large number, thus within a certain period of time from cable surface to inner formation temperature gradient; Heat insulation layer adopts the material with good insulation performance, stops high temperature to be delivered to insulating barrier.Owing to added the multilayer obstruct, make airborne oxygen can not infiltrate cable insulation, thereby the insulating barrier that reaches insulated wire cores is softening (crosslinked polyethylene is insoluble) only, does not produce the effect of oxidation Decomposition, when guaranteeing fire cable can be in the 90min of regulation operate as normal.Synergy by fire-retardant outer jacket, retaining fire bed, cooling layer, heat insulation layer, make the utility model not only have good electric property, and have good fire-resistance property, and solved the contradiction between mesohigh fireproof power cable electric property and the fire-resistance property, satisfied the market demand.
As further improvement of the utility model, described insulated wire cores is provided with conductor, conductor shield, insulating barrier, outer shielding layer from inside to outside successively.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Wherein, 1 conductor, 2 screens, 3 insulating barriers, 4 outer shielding layers, 5 heat insulation layers, 6 cooling layers, 7 retaining fire beds, 8 fire-retardant outer jackets, 9 insulated wire cores.
Embodiment
As figure, the utility model comprises that four thoroughly do away with the edge core, and the cable core of the mutual stranded formation of described core is provided with heat insulation layer 5, cooling layer 6, retaining fire bed 7 and fire-retardant outer jacket 8 outward successively.Wherein, every eradication edge core 9 is provided with conductor 1, conductor shield 2, insulating barrier 3, outer shielding layer 4 from inside to outside successively.
Claims (2)
1, environmental protection and safety type mesohigh fireproof power cable is characterized in that: comprise that four thoroughly do away with the edge core, the cable core of the mutual stranded formation of described core is provided with heat insulation layer, cooling layer, retaining fire bed and fire-retardant outer jacket outward successively.
2, environmental protection and safety type mesohigh fireproof power cable according to claim 1, it is characterized in that: described insulated wire cores is provided with conductor, conductor shield, insulating barrier, outer shielding layer from inside to outside successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200462912U CN201413731Y (en) | 2009-06-03 | 2009-06-03 | Environmental-protection safety type high-medium voltage fire-resistant electric power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200462912U CN201413731Y (en) | 2009-06-03 | 2009-06-03 | Environmental-protection safety type high-medium voltage fire-resistant electric power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201413731Y true CN201413731Y (en) | 2010-02-24 |
Family
ID=41715612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200462912U Expired - Fee Related CN201413731Y (en) | 2009-06-03 | 2009-06-03 | Environmental-protection safety type high-medium voltage fire-resistant electric power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201413731Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2564400A2 (en) * | 2010-06-09 | 2013-03-06 | Schlumberger Technology B.V. | Cable or cable portion with a stop layer |
| US10605022B2 (en) | 2009-09-22 | 2020-03-31 | Schlumberger Technology Corporation | Wireline cable for use with downhole tractor assemblies |
| US11387014B2 (en) | 2009-04-17 | 2022-07-12 | Schlumberger Technology Corporation | Torque-balanced, gas-sealed wireline cables |
-
2009
- 2009-06-03 CN CN2009200462912U patent/CN201413731Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11387014B2 (en) | 2009-04-17 | 2022-07-12 | Schlumberger Technology Corporation | Torque-balanced, gas-sealed wireline cables |
| US10605022B2 (en) | 2009-09-22 | 2020-03-31 | Schlumberger Technology Corporation | Wireline cable for use with downhole tractor assemblies |
| EP2564400A2 (en) * | 2010-06-09 | 2013-03-06 | Schlumberger Technology B.V. | Cable or cable portion with a stop layer |
| EP2564400A4 (en) * | 2010-06-09 | 2014-12-31 | Schlumberger Technology Bv | Cable or cable portion with a stop layer |
| US9368260B2 (en) | 2010-06-09 | 2016-06-14 | Schlumberger Technology Corporation | Cable or cable portion with a stop layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20100603 |