CN204229896U - A kind of fire prevention tension three core power line - Google Patents
A kind of fire prevention tension three core power line Download PDFInfo
- Publication number
- CN204229896U CN204229896U CN201420604769.XU CN201420604769U CN204229896U CN 204229896 U CN204229896 U CN 204229896U CN 201420604769 U CN201420604769 U CN 201420604769U CN 204229896 U CN204229896 U CN 204229896U
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- Prior art keywords
- core
- steel core
- wire
- copper
- coated
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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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Abstract
The utility model discloses a kind of fire prevention tension three core power line, comprise three wires and external coating, wherein two wires are copper conductor, an other wire is steel core wire, described copper conductor is made up of copper core and the PVC insulating barrier be coated on outside copper core, steel core wire is made up of steel core and the PVC insulating barrier be coated on outside steel core, and described steel core surface has plating silver layer; External coating is made up of the mica belt be coated on three wires and the polytetrafluoroethylene floor be coated on mica belt.Three core power lines of the present utility model adopt the steel core wire of electrosilvering to replace existing copper core to use as ground wire, due to the high conductivity of silver and the high resistance pulling force of steel core, when can ensure to leak electricity, ground wire can play the effect of ground connection, overall resistance to tension can be strengthened again, the use of copper material can also be reduced, thus reduce production cost.Three wires all adopt heart yearn to add the structure of PVC insulating barrier, can play insulation, aging-resistant effect, prevent from being short-circuited between heart yearn.
Description
Technical field
The utility model belongs to field of cables, is specifically related to a kind of fire prevention tension three core power line.
Background technology
Existing domestic electric appliance, be all adopt three-core cable as power line, wherein two are respectively live wire and zero line, and other one is ground wire.Three core power lines of existing domestic electric appliance are generally made up of three identical copper cores and outer field insulating coating, and this kind of three-core cable exists following shortcoming:
1) pull resistance is not enough, when pullling power line because of carelessness, likely being broken by the copper core of power line inside and causing loose contact or no power.
2) fire line is not enough, and this kind of outer field insulating coating of power line generally adopts PVC material, and fire resistance is poor.
3) three wires are identical copper core, and the situation of ground wire real work is considerably less, only has just to work when electrical leakage, so just causes the waste of ground wire.
Utility model content
The utility model object is to provide a kind of fire prevention tension three core power line, solves existing electrical appliance power cord pull resistance, fire line is not enough and the problem of ground wire waste.
The technical solution of the utility model is: a kind of fire prevention tension three core power line, comprise three wires and external coating, wherein two wires are copper conductor, an other wire is steel core wire, described copper conductor is made up of copper core and the PVC insulating barrier be coated on outside copper core, steel core wire is made up of steel core and the PVC insulating barrier be coated on outside steel core, and described steel core surface has plating silver layer; External coating is made up of the mica belt be coated on three wires and the polytetrafluoroethylene floor be coated on mica belt.
Further, described steel core wire is between two copper conductors.
Further, two copper conductors are wrapped on steel core wire centered by steel core wire.
The utility model compared with prior art tool has the following advantages:
Three core power lines of the present utility model adopt the steel core wire of electrosilvering to replace existing copper core to use as ground wire, due to the high conductivity of silver and the high resistance pulling force of steel core, when can ensure to leak electricity, ground wire can play the effect of ground connection, overall resistance to tension can be strengthened again, the use of copper material can also be reduced, thus reduce production cost.Three wires all adopt heart yearn to add the structure of PVC insulating barrier, can play insulation, aging-resistant effect, prevent from being short-circuited between heart yearn.External coating adopts mica tape to add the structure of polytetrafluoroethylene floor, can play acid and alkali-resistance, anti-aging, fire prevention, fire-retardant effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, Reference numeral is: 1-mica belt, 2-copper core, 3-PVC insulating barrier, 4-steel core, 5-polytetrafluoroethylene floor.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of fire prevention tension three core power line, comprise three wires and external coating, wherein two wires are copper conductor, and an other wire is steel core wire.Two copper conductors are live wire and zero line, and steel core wire is ground wire.Described copper conductor is made up of copper core 2 and the PVC insulating barrier 3 be coated on outside copper core, and steel core wire is made up of steel core 4 and the PVC insulating barrier 3 be coated on outside steel core, and PVC insulating barrier 3 has insulation, aging-resistant effect.In order to increase wire ability, described steel core 4 surface has plating silver layer; The ground wire of this kind of structure, can ensure reasonable conductive capability, can have very high tensile strength again.External coating is made up of the mica belt 1 be coated on three wires and the polytetrafluoroethylene floor 5 be coated on mica belt 1.Mica belt 1 has very high fire protection flame retarding ability, both can prevent external firing from causing electric wire internal short-circuit, and the spark that can prevent electric wire internal short-circuit from producing again causes electric wire external firing to cause fire.Polytetrafluoroethylene floor 5 can play acid and alkali-resistance, aging-resistant effect, increases the useful life of electric wire.
Embodiment 2
As shown in Figure 1, a kind of fire prevention tension three core power line, comprise three wires and external coating, wherein two wires are copper conductor, and an other wire is steel core wire.Two copper conductors are live wire and zero line, and steel core wire is ground wire.Described copper conductor is made up of copper core 2 and the PVC insulating barrier 3 be coated on outside copper core, and steel core wire is made up of steel core 4 and the PVC insulating barrier 3 be coated on outside steel core, and PVC insulating barrier 3 has insulation, aging-resistant effect.In order to increase wire ability, described steel core 4 surface has plating silver layer; The ground wire of this kind of structure, can ensure reasonable conductive capability, can have very high tensile strength again.External coating is made up of the mica belt 1 be coated on three wires and the polytetrafluoroethylene floor 5 be coated on mica belt 1.Mica belt 1 has very high fire protection flame retarding ability, both can prevent external firing from causing electric wire internal short-circuit, and the spark that can prevent electric wire internal short-circuit from producing again causes electric wire external firing to cause fire.Polytetrafluoroethylene floor 5 can play acid and alkali-resistance, aging-resistant effect, increases the useful life of electric wire.Described steel core wire is between two copper conductors, and three wires are in one line.
Embodiment 3
As shown in Figure 1, a kind of fire prevention tension three core power line, comprise three wires and external coating, wherein two wires are copper conductor, and an other wire is steel core wire.Two copper conductors are live wire and zero line, and steel core wire is ground wire.Described copper conductor is made up of copper core 2 and the PVC insulating barrier 3 be coated on outside copper core, and steel core wire is made up of steel core 4 and the PVC insulating barrier 3 be coated on outside steel core, and PVC insulating barrier 3 has insulation, aging-resistant effect.In order to increase wire ability, described steel core 4 surface has plating silver layer; The ground wire of this kind of structure, can ensure reasonable conductive capability, can have very high tensile strength again.External coating is made up of the mica belt 1 be coated on three wires and the polytetrafluoroethylene floor 5 be coated on mica belt 1.Mica belt 1 has very high fire protection flame retarding ability, both can prevent external firing from causing electric wire internal short-circuit, and the spark that can prevent electric wire internal short-circuit from producing again causes electric wire external firing to cause fire.Polytetrafluoroethylene floor 5 can play acid and alkali-resistance, aging-resistant effect, increases the useful life of electric wire.Two copper conductors are wrapped on steel core wire centered by steel core wire.Overall tensile strength can be strengthened further.
The above embodiment only have expressed the embodiment of the application, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the application's protection range.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from technical scheme design, can also make some distortion and improvement, these all belong to the protection range of the application.
Claims (3)
1. a fire prevention tension three core power line, comprise three wires and external coating, it is characterized in that, wherein two wires are copper conductor, an other wire is steel core wire, described copper conductor is made up of copper core and the PVC insulating barrier be coated on outside copper core, and steel core wire is made up of steel core and the PVC insulating barrier be coated on outside steel core, and described steel core surface has plating silver layer; External coating is made up of the mica belt be coated on three wires and the polytetrafluoroethylene floor be coated on mica belt.
2. one fire prevention tension three core power line according to claim 1, it is characterized in that, described steel core wire is between two copper conductors.
3. one fire prevention tension three core power line according to claim 1, it is characterized in that, two copper conductors are wrapped on steel core wire centered by steel core wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604769.XU CN204229896U (en) | 2014-10-20 | 2014-10-20 | A kind of fire prevention tension three core power line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604769.XU CN204229896U (en) | 2014-10-20 | 2014-10-20 | A kind of fire prevention tension three core power line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204229896U true CN204229896U (en) | 2015-03-25 |
Family
ID=52927963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420604769.XU Expired - Fee Related CN204229896U (en) | 2014-10-20 | 2014-10-20 | A kind of fire prevention tension three core power line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204229896U (en) |
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2014
- 2014-10-20 CN CN201420604769.XU patent/CN204229896U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20151020 |
|
| EXPY | Termination of patent right or utility model |