CN202258495U - Safe early warning cable - Google Patents
Safe early warning cable Download PDFInfo
- Publication number
- CN202258495U CN202258495U CN2011204079809U CN201120407980U CN202258495U CN 202258495 U CN202258495 U CN 202258495U CN 2011204079809 U CN2011204079809 U CN 2011204079809U CN 201120407980 U CN201120407980 U CN 201120407980U CN 202258495 U CN202258495 U CN 202258495U
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- cable
- core
- early warning
- safe early
- sheath
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Abstract
The utility model provides a safe early warning cable, which comprises a cable core and a protective sleeve wrapped on the periphery of the cable core. A control wire core is arranged in the protective sleeve in the axial direction, the control wire core penetrates through two ends of the cable, the tail end of the control wire core is sequentially connected with an undervoltage warner and an external power supply. The undervoltage warner measures real-time voltage on the control wire core and compares the real-time voltage with a preset value. When the real-time voltage is lower than the preset value, the undervoltage warner sends out warning signals. After the protective sleeve of the cable is damaged, the cable can timely send out warning signals. When operations such as installation, maintenance and modification are conducted on large-size equipment in a large-size equipment manufacture factory, the high-performance safe early warning cable can prevent working stop and equipment fault caused by cable grounding faults and provide safe guarantee for customers. The safe early warning cable is simple in structure, convenient to manufacture, safe to use and suitable for large-scale popularization and use.
Description
Technical field
The utility model relates to a kind of cable, specifically is to receive outside destroy or cable at cable to drag after oversheath galls in the use a kind of safe early warning cable that can in time report to the police.
Background technology
In the main equipment manufacturing building; People carry out operation like: installation, maintenance, when transforming to main equipment, because the restriction in device height and space thereof, the cable of use needs often drag back and forth on the ground or on the scope of operation; The necessary serialization operation of the operation that has can not Halfway Stopping.Under environment like this, wearing and tearing or the phenomenon that wounded by external force can often appear in cable cover(ing).If in time do not find that the insulation of cable also might be damaged, insulation is destroyed to cause reveals electricity, and gently then the ground short circuit fault appears in cable, heavy then might threaten to personal safety.Cable on the market generally is the rubber-like cable of ordinary construction now, also can't satisfy the requirement that after the cable cover(ing) breakage, can in time report to the police, can't play forewarning function.Therefore it is most important to develop a kind of safe early warning cable.
Summary of the invention
The purpose of the utility model is: a kind of cable is provided, after its oversheath sustains damage, can in time sends early warning signal, and obtained the safe early warning cable of its signal by the related personnel.
The technical scheme that the utility model adopts is:
A kind of safe early warning cable; Comprise the sheath that cable core is peripheral with being wrapped in cable core, be provided with the control core in the said sheath vertically, this control core runs through the cable two ends; Its end connects undervoltage alarm and external power supply successively; Said undervoltage alarm is measured the real-time voltage on the control core, and with itself and set point comparison, when real-time voltage is lower than set point, send alarm signal.
Said sheath is followed successively by semiconductive inner sheath and cable jacket from the inside to the outside, and the control line in-core is embedded in the semiconductive inner sheath.
Said control core has four at least, circumferentially evenly distributes along sheath.
Said control core is copper wire or tinned copper wire.
Said set point is the magnitude of voltage of external power supply.
Said alarm signal is can be by the sound and light alarm signal of related personnel's perception.
Said external power supply is direct current or the AC power that voltage is no more than 36V.
The beneficial effect that the utility model produces is:
The utility model is a kind of safe early warning cable, specifically is after cable jacket is destroyed, a kind of safe early warning cable that can in time send alarm signal.When the main equipment manufacturing building carries out operation to main equipment; As: installation, maintenance, transformation; A kind of high performance safe early warning cable that uses prevents to stop and equipment fault because of the work that the cable grounding fault is brought, for the client provides safer guarantee.Simple in structure, easily manufactured, safe in utilization, be easy to large-scale promotion and use.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done and to be further described.
Fig. 1 is the cable cross-sectional view of the utility model embodiment.
Fig. 2 is the undervoltage alarm of the utility model cable socket connection and the structural representation of external power supply.
Label is represented among the figure: 1-power line core conductor, and 2-power line core insulation, the 3-cable core is filled, 4-cable core band, 5-controls core, 6-semiconductive inner sheath, 7-cable jacket, 8-undervoltage alarm, 9-external power supply.
Embodiment
Like Fig. 1, shown in Figure 2: the utility model is a kind of safe early warning cable, comprises the sheath that cable core is peripheral with being wrapped in cable core.Be provided with control core 5 in the sheath vertically, this control core 5 runs through the two ends of cable, and its end connects undervoltage alarm 8 and external power supply 9 successively.
In this embodiment, cable core comprises power line core conductor 1, power line core insulation 2, cable core filling 3 and cable core band 4.
Power line core conductor 1 generally is the 5th type of soft copper or the 6th type of soft copper.Power line core insulation 2 generally is plastics or rubber type of material.This instance medium power core conductor 1 has adopted the 5th type of soft copper conductor, and power line core insulation 2 adopts ethylene-propylene rubber closely to be extruded in outside the power line core conductor 1.
The power cable core is made up of four groups of power insulated wire cores, power cable core filling 3, power cable core band 4.Every group of power insulated wire cores all includes power line core conductor 1 and power line core insulation 2.The power insulated wire cores is to arrange in order to carry out stranding, and it is to be placed on four groups of power insulated wire cores gaps that the power cable core fills 3.Power cable core band 4 is wrappedly to fill 3 peripheries in four groups of power insulated wire cores and power cable core.
In this embodiment, the semiconductive inner sheath 6 that sheath sets gradually is from the inside to the outside formed with cable jacket 7.Semiconductive inner sheath 6 is one deck semi-conductive rubber layers that are extruded in power cable core band 4 peripheries; Cable jacket 7 is the non-conductive plastic layers of one deck that are extruded on the semiconductive inner sheath 6, and is coated on closely outside the semiconductive inner sheath 6.
The utility model is the cable with sheath wearing and tearing warning function, is to design to the wearing and tearing of semiconductive inner sheath 6 and cable jacket 7.Normally in service at cable, if make voltage and current that the 1 maintenance work of power line core conductor uses and the protection that receives core insulation 2, only need core insulation 2 to obtain protection and be not damaged, this cable just can normally move.So damaged but do not injure under semiconductive inner sheath 6 situation when cable jacket 7, cable can normally use, and does not also require warning this moment.But along with degree of injury is expanded to cable inside gradually, when damaged situation arrived semiconductive inner sheath 6, semiconductive inner sheath 6 can or contact greatly with extraneous contactant, grounding phenomenon occurs, produces bigger potential safety hazard.
Therefore; This wearing and tearing warning function mainly is to 6 designs of semiconductive inner sheath; Being about to the critical piece of the utility model---control core 5 is arranged on the inside of semiconductive inner sheath 6; After making cable jacket 7 wear and tear, in the time of might injuring the cable core of semiconductive inner sheath 6 inside, promptly can send alarm signal.During practical implementation, can also be according to different early warning requirements, control core 5 is arranged on the inner surface of cable jacket 7 or on the inner surface of semiconductive inner sheath 6.
At the two ends of cable, all control cores 5 together are connected an end of undervoltage alarm 8, and undervoltage alarm 8 other ends connect the external power supply 9 that is no more than 36V.Undervoltage alarm 8 comprises measurement module, comparing unit and alarm module, and its operating state is following: measurement module records the real-time voltage of control core 5 and it is delivered to comparing unit; The comparing unit storage inside has a set point, receive the real-time voltage of control core 5 after, with itself and set point comparison, if be lower than set point, comparing unit sends switching signal to alarm module; Alarm module is one can send sound and light alarm and by the electronic devices and components of related personnel's perception, receive switching signal after, work produces the sound and light alarm signal.In this embodiment, four control cores 5 are connected on 8 one binding posts of undervoltage alarm jointly, and another binding post of undervoltage alarm 8 adds the direct-flow external power source 9 of positive 36V.
The operating state of the utility model is following:
When cable under normal operation, control core 5 remain constant 36V magnitude of voltage, undervoltage alarm 8 is not reported to the police.
Damaged but do not injure under semiconductive inner sheath 6 situation when cable jacket 7, cable can normally use, and and does not require also and can not report to the police.
Along with degree of injury is expanded to cable inside gradually, when damaged situation arrived semiconductive inner sheath 6, semiconductive inner sheath 6 can or contact greatly with extraneous contactant, grounding phenomenon occurs.At this moment, the nearest control core 5 of some meeting of the semiconductive inner sheath 6 that is worn and air line distance is communicated with, and the voltage on the control core 5 eases down to the zero potential identical with the earth at once.Therefore, the voltage that bears on the undervoltage alarm 8 can be lower than 36V, and undervoltage alarm 8 will send alarm signals such as acousto-optic, and can remind the related work personnel, thereby plays the effect of safe early warning.
Claims (7)
1. safe early warning cable; Comprise the sheath that cable core is peripheral with being wrapped in cable core, it is characterized in that: be provided with the control core in the said sheath vertically, this control core runs through the cable two ends; Its end connects undervoltage alarm and external power supply successively; Said undervoltage alarm is measured the real-time voltage on the control core, and with itself and set point comparison, when real-time voltage is lower than set point, send alarm signal.
2. safe early warning cable according to claim 1 is characterized in that: said sheath is followed successively by semiconductive inner sheath and cable jacket from the inside to the outside, and the control line in-core is embedded in the semiconductive inner sheath.
3. safe early warning cable according to claim 1 is characterized in that: said control core has four at least, circumferentially evenly distributes along sheath.
4. safe early warning cable according to claim 1 is characterized in that: said control core is copper wire or tinned copper wire.
5. safe early warning cable according to claim 1 is characterized in that: said set point is the magnitude of voltage of external power supply.
6. safe early warning cable according to claim 1 is characterized in that: said alarm signal is can be by the sound and light alarm signal of related personnel's perception.
7. safe early warning cable according to claim 1 is characterized in that: said external power supply is direct current or the AC power that voltage is no more than 36V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204079809U CN202258495U (en) | 2011-10-24 | 2011-10-24 | Safe early warning cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204079809U CN202258495U (en) | 2011-10-24 | 2011-10-24 | Safe early warning cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258495U true CN202258495U (en) | 2012-05-30 |
Family
ID=46119703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204079809U Expired - Lifetime CN202258495U (en) | 2011-10-24 | 2011-10-24 | Safe early warning cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646690A (en) * | 2013-12-09 | 2014-03-19 | 中特华星电缆股份有限公司 | Cable used for integrated grounding system of alarm signal line |
-
2011
- 2011-10-24 CN CN2011204079809U patent/CN202258495U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646690A (en) * | 2013-12-09 | 2014-03-19 | 中特华星电缆股份有限公司 | Cable used for integrated grounding system of alarm signal line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |