CN203055501U - Cable for rapidly detecting insulating layer - Google Patents
Cable for rapidly detecting insulating layer Download PDFInfo
- Publication number
- CN203055501U CN203055501U CN 201320002465 CN201320002465U CN203055501U CN 203055501 U CN203055501 U CN 203055501U CN 201320002465 CN201320002465 CN 201320002465 CN 201320002465 U CN201320002465 U CN 201320002465U CN 203055501 U CN203055501 U CN 203055501U
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- Prior art keywords
- insulating barrier
- insulating layer
- conductive fiber
- cable
- damaged
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Abstract
Aiming at the defects of the existing electric wires or cables that whether the insulating layer is damaged and the damaged position are difficult to detect, the utility model provides a cable which can rapidly detecting whether an insulating layer is damaged and can rapidly positioning the damaged position of the insulating layer. The cable comprises a wire core and an insulating layer coated outside the wire core, wherein the surface of the insulating layer is provided with a plurality of conductive fibers which are paved along the length direction of the wire core and are not conducted with each other. The cable provided by the utility model solves the problems that whether the insulating layer is damaged is difficult to detect in application, and the damaged position is difficult to determine when the insulating layer is damaged after the electric wires and cables leave the production line at low cost, and does not affect the original performances of the electric wires and cables.
Description
Technical field
The utility model relates to the cable correlative technology field, specifically, whether damages and locate fast electric wire or the cable that insulating barrier damages the position but relate to a kind of fast detecting insulating barrier.
Background technology
The conductor wire core fracture of electric wire and cable is easy to because voltage and current is detected unusually, and fracture position roughly can detect by special detecting instrument.And the damage of the insulating barrier of electric wire generally can only perhaps be unloaded cable at production line by the spark test machine testing from circuit, detects by the immersion voltage test.But prior art is difficult to accurately detect be installed in equipment, building and the protecting pipe, and insulating barrier damaged condition and the position of the electric wire and cable of no metallic sheath and metal screen layer are especially under cable is being switched on situation about using.The part damage often causes leaking electricity and the voltage of electric wire becomes undesired and insulating barrier takes place, outside the influence safety, also usually being mistaken as is plant issue, both has been difficult to find and investigation so the insulating barrier of electric wire and cable damages, and also is difficult to determine to damage the position.
If otherwise influence the normal use of cable and detect insulating barrier and damage, often can only damage the position by the range estimation insulating barrier, this method is inefficiency not only, and omission also very easily takes place.
The utility model content
Whether whether the utility model is to damage and damage the deficiency that the position is difficult to detect at existing electric wire or cable insulation, but provide a kind of fast detecting insulating barrier to damage and can locate the cable that insulating barrier damages the position fast.
The technical problem of the required solution of the utility model can be achieved through the following technical solutions:
A kind of insulating barrier fast detecting cable comprises core and is coated on the outer insulating barrier of core, it is characterized in that: described surface of insulating layer is provided with many core length direction along the line shop conductive fibers that cover and mutual not conducting.
In the utility model, described shop overlays on the conductive fiber quantity of surface of insulating layer greater than three, be arranged in parallel each other.
In the utility model, described conductive fiber is attached to surface of insulating layer by splicing or hot melt adhesion, and conductive fiber is the exposed setting of core dorsad.
In the utility model, described conductive fiber is wire or metal forming or carbon fiber bundle, and the elongation at break of described conductive fiber is not more than the elongation at break of insulating barrier.
The utility model covers several being parallel to each other and the conductive fiber of mutual conduction not in wire insulation outer surface shop, utilize the elongation at break of conductive fiber to be lower than the characteristic of insulating layer material, and conductive fiber is in the insulating barrier outside and away from the neutral line of lead core, so it is crooked or when reversing at lead, the percentage elongation of conductive fiber always is higher than insulating barrier and these two characteristics of core, guaranteed to be worn at lead, crooked, when reversing or shearing, conductive fiber is always early than insulating barrier generation fracture damage.At this moment, utilize the routine techniques and the equipment that detect the fracture of electric wire core, just can non-cracking be arranged the outer conductive fiber that coats of fast detecting wire insulation, and the position at breakaway poing place, thereby find the early stage damage of wire cable insulating layer according to the fracture position of conductive fiber, and can judge by the radical of conductive fiber fracture and estimate the length that insulating barrier damages breach.
Whether the utility model has solved electric wire after leaving production line with low cost, be difficult in use detect insulating barrier and be damaged, and insulating barrier is difficult to determine to damage the problem of position, and does not influence the original performance of electric wire when being damaged.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is structural representation of the present utility model.
Among the figure, 1 core; 2 insulating barriers; 3 conductive fibers; 4 insulating barriers damage the position
Embodiment
In order to make technological means of the present utility model, creation characteristic, to reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Purport of the present utility model is, by existing electric wire or cable insulation are damaged the analysis that detects present situation, find that there is inefficiency in the existing detection whether electric wire or cable insulation were damaged and damaged the position and occurs the problem of omission easily, but provide a kind of fast detecting insulating barrier whether to damage and can locate the cable that insulating barrier damages the position fast by the utility model.
Referring to Fig. 1, cable of the present utility model, comprise core 1, core 1 is coated with insulating barrier 2, and the shop, surface of insulating barrier 2 is covered with conductive fiber 3, and conductive fiber 3 covers for many core 1 length direction also along the line shops, not conducting mutually between the multiple conducting wires fiber 3, be preferably shown in present embodiment, lead fiber 3 is greater than 3, and be arranged in parallel each other.
When electric wire bent, the axis of core 1 namely was the neutral line of bending sections.Insulating barrier 2 is relatively near neutral line, thereby the stretching that produces when bending or flexural deformation are less.Conductive fiber 3 is because away from neutral line, so the stretching of bearing when electric wire bends or flexural deformation maximum.As long as reasonable material, guarantee that the elongation at break of conductive fiber 3 is not less than insulating barrier 2, just can guarantee because insulating barrier 2 before tearing, conductive fiber 3 ruptures already because the electric wire bending radius is too little.
In addition, if electric wire is worn or shears when infringement, because conductive fiber 3 is attached to insulating barrier 2 outer surfaces, so conductive fiber 3 can at first substitute insulating barrier 2 taking up wears or shear infringement.Have only when conductive fiber 3 is rubbed or cuts off, insulating barrier 2 just can be subjected to obvious impairment.And conductive fiber 3 is wire, metal forming or carbon fiber bundle material, and it resistance to wears and the shear-stable performance always is higher than insulating barrier 2, resistance to wears and the shear-stable performance so conductive fiber 3 has in fact also played the insulating barrier 2 that strengthens electric wire.
So the utility model can be guaranteed except the aperture penetration damage---the production flaw is generally come from this damage, can on production line, just detect by the spark test instrument, when insulating barrier 2 damages took place under the various different situations, conductive fiber 3 damaged in advance.The conducting wire is damaged and the technology and equipment of definite damage position is very ripe and detect, can be general with technology and the instrument of detection line cable core.And when the conductive fiber 3 of insulating barrier 2 outer surfaces detected, do not need cable is removed from original circuit, do not need cable is cut off the power supply yet.Greatly make things convenient for the detection that insulating barrier 2 is damaged, more significantly improved the speed and the precision that detect, and avoided the situation of omission.
If only need the insulating barrier 2 of easy detection cable whether to damage, adopt product of the present utility model can also adopt easier method.Namely with conductive fiber 3 bandings of the metal anchor ear that conducts electricity with one section of cable, make an end short circuit of every conductive fiber 3.At this moment, insert a low-tension supply at any conductive fiber 3 of the other end of cable---as the dry cell of 1.5V, afterwards because every conductive fiber 3 by anchor ear all short circuit get up, electromotive force is identical, so when measuring other any conductive fibers 3 with respect to the electromotive force of ground connection, should all can measure the electrical potential difference identical with inserting power supply.If a certain conductive fiber 3 can not surveyed the electrical potential difference with respect to ground connection, illustrate that then this conductive fiber 3 has ruptured, damage has taken place in insulating barrier 2 correspondingly probably.If there are many adjacent conductive fibers 3 can not survey electrical potential difference, can judge that so insulating barrier 2 may take place to such an extent as to torn many conductive fibers 3, need cause enough attention than the tearing of big circumference length in maintenance.Like this, by one as dry cell and so on low-tension supply, universal instrument and metal anchor ear just can be easily with fast detecting equipment or building in the insulating barrier of each conductor cable situation about whether being damaged.
As preferably, conductive fiber 3 of the present utility model is not influencing the material that can adopt multiple different colours under conductivity and the prerequisite to the adhesive ability of insulating barrier 2 or painted, so that find corresponding insulating barrier to damage position 4 the cable maintainer along the fracture conductive fiber 3 of certain color.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. an insulating barrier fast detecting cable comprises core and is coated on the outer insulating barrier of core, it is characterized in that: described surface of insulating layer is provided with many core length direction along the line shop conductive fibers that cover and mutual not conducting.
2. a kind of insulating barrier fast detecting cable according to claim 1, it is characterized in that: described shop overlays on the conductive fiber quantity of surface of insulating layer greater than three, be arranged in parallel each other.
3. a kind of insulating barrier fast detecting cable according to claim 1 is characterized in that: described conductive fiber is by glueing joint or hot melt adhesion is attached to surface of insulating layer, and conductive fiber is the exposed setting of core dorsad.
4. a kind of insulating barrier fast detecting cable according to claim 1, it is characterized in that: described conductive fiber is wire or metal forming or carbon fiber bundle.
5. a kind of insulating barrier fast detecting cable according to claim 4, it is characterized in that: the elongation at break of described conductive fiber is not more than the elongation at break of insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002465 CN203055501U (en) | 2013-01-05 | 2013-01-05 | Cable for rapidly detecting insulating layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002465 CN203055501U (en) | 2013-01-05 | 2013-01-05 | Cable for rapidly detecting insulating layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203055501U true CN203055501U (en) | 2013-07-10 |
Family
ID=48738429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320002465 Expired - Fee Related CN203055501U (en) | 2013-01-05 | 2013-01-05 | Cable for rapidly detecting insulating layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203055501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550434A (en) * | 2018-01-23 | 2018-09-18 | 安徽国通电力建设有限公司 | A kind of more cable insulated power cables |
-
2013
- 2013-01-05 CN CN 201320002465 patent/CN203055501U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550434A (en) * | 2018-01-23 | 2018-09-18 | 安徽国通电力建设有限公司 | A kind of more cable insulated power cables |
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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: 20130710 Termination date: 20160105 |