CN2534655Y - Electric cable with protective line - Google Patents
Electric cable with protective line Download PDFInfo
- Publication number
- CN2534655Y CN2534655Y CN 02228993 CN02228993U CN2534655Y CN 2534655 Y CN2534655 Y CN 2534655Y CN 02228993 CN02228993 CN 02228993 CN 02228993 U CN02228993 U CN 02228993U CN 2534655 Y CN2534655 Y CN 2534655Y
- Authority
- CN
- China
- Prior art keywords
- cable
- wire
- utility
- model
- cores
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a cable in the electrical materials. The utility model settles the problem that a person is attacked, or a device or a circuit is damaged when an electric device or a household electric appliance is still electrified in the case of failure, and thus prevents a fire and reduces the cable manufacture cost. The technical proposal of the utility model is that the cable is a cable, which is provided with a protecting wire and which mainly comprises two conductive wire cores (1), insulating layers (2) wrapping the conductive wire cores (1), and an external sheath (3) bundling the two wire cores (1) together; a grounding protecting wire is arranged between the insulating layers (2) and the external sheath (3). Applied in the electrical construction, the cable provided with the grounding protecting wire does not increase the cost of cable laying or cable correction. Moreover, no cable connection mistake is caused, so as to ensure the safety. In addition, the cross-section of the protecting wire (4) is much smaller than the cross-section of the conductive wire core, so the manufacture cost is reduced. Thus, the utility model has remarkable economic benefits.
Description
One, technical field
The utility model belongs to electrical material, relates in particular to cable.
Two, background technology
Before the utility model; electric device or household electrical appliance metal shell when operate as normal is not charged; but may be charged under failure condition; in order to prevent that electric device or household electrical appliance may be charged under failure condition and the person is got shocked; or equipment and circuit are suffered damage and fire preventing and guarantee electric power system normally move; usually the metal shell with electric device or household electrical appliance links to each other with earth connection, carries out protective ground.When the insulation damages of electric equipment, during outer casing electrification, fault current flows into the earth through earth connection, and overcurrent protection equipment moves and cuts off the electricity supply automatically.All use three-pin plug (a wherein pin ground connection) as electrical equipment such as refrigerator, washing machine, electric fan and air conditioners, in case insulation damages, because shell ground connection in accordance with regulations, so be difficult for the generation Danger Electric shock risk.Usually when circuit lays, the ground protection line can be with a heart yearn in the three core power cables, or is made of independent plain conductor or insulated wire etc.Because three core power cables cost an arm and a leg, and the cross-sectional sizes of three heart yearns is the same, and the earth leakage electric current is very little, a use wherein heart yearn is actually a kind of waste as protective wire, so only can increase line cost greatly.And if adopt twin-core polyvinyl chloride flat pattern cable as phase line and zero line, protective wire then is made of the single insulated wire that lays in addition, this also can increase the construction and the school line cost of cable laying, and very easily causes wiring error.
Three, technical scheme
In order to solve above-mentioned deficiency, the utility model proposes the cable that security incidents such as a kind of person of being caused of preventing to leak electricity, equipment, production cost are low, can not produce the band protective wire of wiring error.
Its technical scheme: the cable of band protective wire mainly contains two conductor wire cores, wraps in the insulating barrier on the conductor wire core and the oversheath that two conductor wire cores that are surrounded by insulating barrier tie together formed.Security incidents such as the person that is caused for preventing to leak electricity, equipment are to be provided with a ground protection line between the insulating barrier of two conductor wire cores and oversheath.Be unlikely generation wiring error, protective wire can adopt plain conductor or yellow and green insulated wire.For making production cost low, the sectional area of protective wire adopts greater than 1mm
2, less than 20% of conductor wire core sectional area.
The cable of this band protective wire economic benefit in the architectural electricity construction is very remarkable, and advantage is:
1, do not increase the construction and the school line cost of cable laying, meet " a left side zero when connecing supply socket simultaneously yet
Right phase, ground connection is last " the electrical construction regulation, can not cause wiring error, guarantee safety.
2, adopt the twin-core polyvinyl chloride flat pattern construction of cable, the protective wire sectional area is significantly smaller than the conductor wire core cross section
Long-pending, reduced manufacturing cost.
Four, description of drawings
Accompanying drawing 1 is the structural representation of the cable of band protective wire
Five, embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
Its technical scheme: the cable of band protective wire, mainly by two conductor wire cores (1), wrap in the insulating barrier (2) on the conductor wire core (1) and the oversheath (3) that two conductor wire cores (1) and insulating barrier (2) integral body wrap in together formed.Security incidents such as the person that is caused for preventing to leak electricity, equipment form with the whole wrapping of oversheath (3) with an exposed ground protection line (4) at two conductor wire cores (1) that are surrounded by insulating barrier (2).Two conductor wire cores (1) sectional area is 2.5mm
2, exposed ground protection line (4) sectional area is 1mm
2
Claims (3)
1. be with the cable of protective wire; mainly by two conductor wire cores (1), wrap in the insulating barrier (2) on the conductor wire core (1) and will be surrounded by the oversheath (3) that two conductor wire cores (1) of insulating barrier (2) tie together and form, it is characterized in that between the insulating barrier (2) of two conductor wire cores (1) and oversheath (3), being provided with a ground protection line (4).
2, the cable of band protective wire according to claim 1 is characterized in that protective wire (4) can be single plain conductor or the yellow and green insulated wire constitutes.
3, the cable of band protective wire according to claim 1 is characterized in that the sectional area of protective wire (4) should be greater than 1mm
2, less than 20% of conductor wire core (1) sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228993 CN2534655Y (en) | 2002-04-09 | 2002-04-09 | Electric cable with protective line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228993 CN2534655Y (en) | 2002-04-09 | 2002-04-09 | Electric cable with protective line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2534655Y true CN2534655Y (en) | 2003-02-05 |
Family
ID=33705416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02228993 Expired - Fee Related CN2534655Y (en) | 2002-04-09 | 2002-04-09 | Electric cable with protective line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2534655Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254602A (en) * | 2011-07-06 | 2011-11-23 | 黄华道 | Shielding line |
| CN107809016A (en) * | 2016-09-09 | 2018-03-16 | 富士康(昆山)电脑接插件有限公司 | Micro coaxial cable connector assembly |
-
2002
- 2002-04-09 CN CN 02228993 patent/CN2534655Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254602A (en) * | 2011-07-06 | 2011-11-23 | 黄华道 | Shielding line |
| CN107809016A (en) * | 2016-09-09 | 2018-03-16 | 富士康(昆山)电脑接插件有限公司 | Micro coaxial cable connector assembly |
| CN107809016B (en) * | 2016-09-09 | 2020-10-30 | 富士康(昆山)电脑接插件有限公司 | Cable assembly with improved cable retention |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |