CN116660789B - Intelligent live detection device for cable - Google Patents
Intelligent live detection device for cable Download PDFInfo
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- CN116660789B CN116660789B CN202310746677.9A CN202310746677A CN116660789B CN 116660789 B CN116660789 B CN 116660789B CN 202310746677 A CN202310746677 A CN 202310746677A CN 116660789 B CN116660789 B CN 116660789B
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- cable
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- electromagnet
- inner cylinder
- ring
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- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 239000000049 pigment Substances 0.000 claims abstract description 27
- 238000007599 discharging Methods 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 9
- 230000005389 magnetism Effects 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 11
- 238000009413 insulation Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model belongs to the technical field of electric power equipment state live detection, concretely relates to an intelligent live detection device for cable, including outer drum, first electro-magnet, permanent magnet, cylinder, folding sleeve, inner cylinder and conducting ring, be equipped with the opening that is used for expanding outer drum on the outer drum, be equipped with the magic subsides that can paste the dismantlement on the opening, conducting ring and outer drum fixed connection, cylinder, folding sleeve and first electro-magnet are fixed to be established on the outer drum, be equipped with pigment in the cylinder, first electro-magnet and conducting ring pass through first wire connection. According to the scheme, an operator only needs to stand on the cable shaft, the outer cylinder is sleeved on the cable, whether the cable line has an electric leakage phenomenon or not can be judged according to alarm sound sent by the alarm, the electric leakage position can be checked according to pigment on the cable line after electric leakage, and then the cable line is replaced, maintained and analyzed for reasons, so that the operation is convenient and simple.
Description
Technical Field
The scheme belongs to the technical field of electric power equipment state live detection, and particularly relates to an intelligent live detection device for a cable.
Background
The cable has a significant position in the urban power grid, and the safe and stable operation of the cable is particularly important for the operation stability of the urban power grid. The high-temperature-resistant cable has the characteristics of good insulating property, high temperature resistance, easiness in laying, simplicity in operation and maintenance and the like, and is widely applied to power grids such as cities, railways, coal mines and the like. In-situ practical cable insulator materials can have residual bubbles, wrinkles or other impurities generated by insulation aging during operation, which can lead to insulation defects, and these weak points often lead to partial discharge. Although the magnitude of the partial discharge is small, the short-term existence does not lead to immediate breakdown of the whole insulation, but under long-term operating voltage, the partial discharge can lead to gradual expansion of insulation defects, and finally the whole insulation breakdown is caused, so that accidents are caused. The common laying method of the cable comprises direct burial, pipe burying, cable channels and the like, so that the difficulty in inspecting the running condition of the cable is increased. In recent years, a power failure of a cable due to an insulation damage problem thereof occurs at some time, and is in an ascending state.
Live detection is one of important means for detecting the state of electric equipment, and is to detect the state quantity of the equipment on site in the live running state of the equipment, take abnormal phenomena such as sound, light, electricity, magnetism, heat and the like generated when the equipment has defects as break-over ports, and detect parameters such as ultrasonic, vibration, electromagnetic wave, heat and the like in an important way so as to find potential hidden hazards of the equipment. The equipment state quantity can be obtained by utilizing the electrified detection, the equipment state is evaluated, the hidden danger of equipment is prevented, and the power supply reliability is improved.
The utility model provides a city cable multidimensional data integrated live detection device, is CN110672996a, including the data perception layer of measuring the cable joint data that awaits measuring, integrated conversion and store data acquisition and processing layer of data perception layer measurement data and with the data transmission to the data communication layer of monitor platform through wireless communication's mode after data acquisition and processing layer conversion.
The scheme is convenient and quick, has high detection efficiency, comprehensively and intelligently analyzes and detects the multi-dimensional data of the power bin cable wirelessly transmitted by the result, so that operation and maintenance personnel are guided to scientifically arrange production, operation and management work, and the operation and detection efficiency of the cable in the urban comprehensive management power bin is greatly improved. However, in the actual detection process, the cable is often laid in a cable trench, a cable well, a cable bridge and the like. When a detector detects in the cable well, the detector needs to hold the sensor close to the cable body, so that the operation is very difficult and the efficiency is very low. Meanwhile, as the detection personnel and the cable body need to be contacted, certain operation safety risks are brought.
Disclosure of Invention
This scheme provides an intelligent electrified detection device for cable that need not inspector and cable body contact.
In order to achieve the above-mentioned purpose, this scheme provides an intelligent live detection device for cable, including outer drum, be equipped with detecting element on the outer drum, detecting element includes first electro-magnet, permanent magnet, cylinder, folding sleeve, inner cylinder and conducting ring, be equipped with the opening that is used for expanding outer drum on the outer drum, be equipped with the magic subsides that can paste the dismantlement on the opening, conducting ring and outer drum fixed connection, cylinder, folding sleeve and first electro-magnet are fixed to be established on the outer drum, be equipped with pigment in the cylinder, first electro-magnet and conducting ring are connected through first wire, permanent magnet fixed mounting is on the inner drum, the inner drum is the telescopic structure inner cylinder upper end and folding sleeve fixed connection, inner drum lower extreme and conducting ring fixed connection, permanent magnet and first electro-magnet pass through spring fixed connection, magnetism and the permanent magnet of first electro-magnet repel each other, be equipped with the piston rod on the first piston on the cylinder, the other end and outer drum fixed connection, be equipped with the discharging pipe on the cylinder, the permanent magnet fixed mounting is on the inner drum, the inner drum is located on the folding sleeve, the same polarity, the discharging pipe is equipped with the discharging ring matches with the discharging port.
The principle of the scheme is as follows: the outer cylinder is stuck around the cable to be detected by using a magic tape at the upper end of a cable well by an operator, then the operator releases two hands, so that the outer cylinder is stuck to the cable and slowly slides down, when the cable leaks electricity, the conducting ring transmits current to the alarm, the alarm gives out alarm sound, the operator hears the alarm sound, the cable leaks electricity, and then the operator actively prepares to replace the cable, meanwhile, the conducting ring transmits the current to the first electromagnet through the first conducting wire, the first electromagnet is electrified to attract the permanent magnet, the permanent magnet moves towards the direction of the cylinder, the permanent magnet drives the piston rod of the cylinder to move towards the direction of the cylinder, and pigment in the cylinder is extruded and sprayed onto the cable, so that the operator can check the leakage position of the cable according to the cable, and meanwhile, the outer cylinder drops down due to gravity, and then the pigment is sprayed out when the discharging pipe of the cylinder passes through the leakage position of the cable, so that the cable is very intelligent.
The beneficial effect of this scheme:
(1) According to the scheme, an operator only needs to stand at the upper end of the cable shaft to sleeve the outer cylinder on the cable wire, whether the cable wire has an electric leakage phenomenon can be judged according to alarm sounds sent by the alarm, the electric leakage position can be checked according to pigment on the cable wire after electric leakage, and then the cable wire is replaced, maintained and analyzed for reasons, so that the operation is convenient and simple.
(2) When the conducting ring of lower extreme is through electric leakage department for last the first electro-magnet of the outer cylinder body in the whereabouts electrified, and then extrude the pigment in the cylinder to electric leakage department, the position is accurate, beats the cable in addition automatically, need not to detect personnel and cable body contact very intelligently, has also avoided danger and the degree of difficulty of manual detection simultaneously.
Further, the conductive ring is in a circular arc shape, the diameter of the conductive ring is larger than that of the inner cylinder, and the conductive ring is connected with the inner cylinder through elastic materials. When the residual bubble, fold and break on the cable can lead to the diameter grow of cable, and these weak points can often produce partial discharge first, therefore, when the inner cylinder falls down, the conducting ring can pass through bubble and fold because the diameter is bigger, simultaneously because first magnet and permanent magnet attract each other, and then can make the diameter grow of inner cylinder, the outer cylinder gliding of being convenient for accomplishes detection and marks for pigment on the cable wire.
Further, the inner cylinder is formed by a plurality of strip-shaped risers, each riser is provided with a through hole, an elastic rope is arranged in each through hole, the upper ends of the risers are fixedly connected with the folding sleeve, the lower ends of the risers are fixedly connected with the conducting rings, and the inner cylinder is provided with an opening identical to the opening of the outer cylinder. The opening facilitates the deployment of the inner cylinder and then fits over the cable.
Further, a second electromagnet is further arranged on the outer cylinder, the second electromagnet is connected with the conducting ring through a second conducting wire, a second piston is arranged on the cylinder, the second piston is a permanent magnet, magnetism of the second piston is opposite to that of the second electromagnet, a pressure switch used for controlling the first electromagnet and the second electromagnet is arranged on the conducting ring, and the pressure switch is matched with the cable. When the cable has no bubble or fold and break, namely the diameter of the cable has no break, the cable is not contacted with the first pressure switch, and then the first electromagnet is not electrified, and the second electromagnet is electrified, namely the diameter of the inner cylinder has no change, so that the device slowly drops down, the phenomenon that the device drops down too fast to spray out pigment onto the cable wire is avoided, or the position of the sprayed pigment is inaccurate, and meanwhile, the second electromagnet is electrified, so that the second piston moves towards the cable direction, and then the pigment in the cylinder is extruded onto the cable wire.
Further, a spray head is arranged at the tail end of the discharging pipe. The diameter of the spray head is smaller than that of the discharge pipe, so that the distance for spraying pigment is larger than that of the discharge pipe. And further, it is possible to avoid that pigment cannot be sprayed onto the cable wire when the diameter of the inner cylinder becomes large.
Further, a through hole is formed in the outer cylinder for the second wire to pass through.
Further, two detection units are arranged and are symmetrically arranged along the central line of the outer cylinder.
Further, a contact ring is hinged on the conductive ring, the contact ring has conductivity, and the contact ring is contacted with the cable. When the cable leaks electricity, the contact ring conducts electricity and transfers the electricity to the conductive ring.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view showing the structure of the outer cylinder according to the embodiment of the present invention.
FIG. 3 is a schematic view showing the structure of the inner cylinder of the embodiment of the present invention.
Detailed Description
The following is a further detailed description of the embodiments:
the labels in the drawings of this specification include: 1. an outer cylinder; 2. a first electromagnet; 3. a permanent magnet; 4. a cylinder; 5. folding the sleeve; 6. an inner cylinder; 7. a conductive ring; 8. a magic tape; 9. a first piston; 10. a discharge pipe; 11. a riser; 12. an elastic rope; 13. a second electromagnet; 14. a second wire; 15. a first wire; 16. a second piston; 17. a pressure switch; 18. a cable; 19. a contact ring.
The embodiment is basically as shown in the accompanying figures 1-3:
the utility model provides an intelligent live detection device for cable 18, including outer drum 1, first electro-magnet 2, the permanent magnet 3, the cylinder 4, folding sleeve 5, inner cylinder 6 and conducting ring 7, be equipped with the opening that is used for expanding outer drum 1 on the outer drum 1, be equipped with the magic subsides 8 that can paste the dismantlement on the opening, conducting ring 7 and outer drum 1 fixed connection, cylinder 4, folding sleeve 5 and first electro-magnet 2 are fixed to be established on outer drum 1, be equipped with pigment in the cylinder 4, first electro-magnet 2 and conducting ring 7 pass through first wire 15 to be connected, permanent magnet 3 fixed mounting is on inner drum 6, inner cylinder 6 is the telescopic structure, inner cylinder 6 upper end and folding sleeve fixed connection, inner cylinder 6 lower extreme and conducting ring 7 fixed connection, permanent magnet 3 and first electro-magnet 2 pass through spring fixed connection, magnetism and permanent magnet 3 homopolar repulsion, be equipped with first piston 9 on the cylinder 4, be equipped with the piston rod on the first piston 9, the other end and the elastic sleeve fixed connection of piston rod, be equipped with discharging pipe 10 on the cylinder 4, discharging pipe 10 is located folding sleeve 5's recess, the discharging pipe 10 is equipped with pigment in the discharging port, the discharging pipe 18 just matches on the cable 7, the discharging valve is equipped with on the conducting ring 7 from the cable, the discharging pipe is just in the cable is equipped with the charging vent.
The conductive ring 7 is arc-shaped, the diameter of the conductive ring 7 is larger than that of the inner cylinder 6, and the conductive ring 7 is connected with the inner cylinder 6 through elastic materials. When bubbles, folds and breaks remain on the cable 18, the diameters of the cable 18 become larger, and partial discharge is often generated at the weak points, so that when the inner cylinder 6 falls down, the conductive ring 7 can pass through the bubbles and folds because of larger diameters, and meanwhile, the diameters of the inner cylinder can be increased because the first magnet and the permanent magnet are attracted to each other, so that the outer cylinder 1 can slide down completely, and detection and marking of pigments on the cable 18 are finished.
The inner cylinder 6 is composed of a plurality of strip-shaped risers 11, each riser 11 is provided with a through hole, and an elastic rope 12 is arranged in the through hole. The inner cylinder 6 is provided with the same opening as the outer cylinder 1. The opening facilitates the deployment of the inner cylinder 6 and then fits over the wire of the cable 18.
The outer cylinder 1 is also provided with a second electromagnet 13, the second electromagnet 13 is connected with the conducting ring 7 through a second lead 14, the cylinder 4 is provided with a second piston 16, the second piston 16 is a permanent magnet, the magnetism of the second piston 16 is opposite to that of the second electromagnet 13, the conducting ring 7 is provided with a pressure switch 17 for controlling the first electromagnet 2 and the second electromagnet 13, and the pressure switch 17 is matched with a cable 18. When the cable 18 is free of bubbles or wrinkles and cracks, i.e. the diameter of the cable 18 is not broken, the cable 18 is not in contact with the first pressure switch 17, and therefore the first electromagnet 2 is not energized, and the second electromagnet 13 is energized, i.e. the diameter of the inner cylinder 6 is not changed, so that the device slowly drops down, the situation that the device drops too fast to spray out pigment onto the cable 18 wire is avoided, or the position where pigment is sprayed out is inaccurate, and meanwhile the second electromagnet 13 is energized, so that the second piston 16 moves towards the cable 18, and pigment in the cylinder 4 is extruded onto the cable 18 wire.
The end of the discharge pipe 10 is provided with a spray head. The diameter of the spray head is smaller than that of the discharge pipe 10, so that the pigment spraying distance is larger than that of the discharge pipe 10, and the phenomenon that pigment cannot be sprayed onto the cable 18 line when the diameter of the inner cylinder 6 is enlarged can be avoided.
The specific operation is as follows:
the outer cylinder 1 is attached to the cable 18 to be detected through the magic tape 8 around the cable 18 to be detected by an operator at the upper end of a cable 18 well, then the operator releases hands, the outer cylinder 1 is attached to the cable 18 and slowly slides down, when the cable 18 leaks electricity, the contact ring 19 conducts electricity and transmits electricity to the conducting ring 7 when the cable leaks electricity, the conducting ring 7 transmits current to the alarm, the alarm gives out alarm sounds, the operator hears the alarm sounds, the operator knows that the cable 18 leaks electricity, and then actively prepares to replace the cable 18, meanwhile, the conducting ring 7 transmits current to the first electromagnet through the first conducting wire 15, the first electromagnet is electrified to attract the permanent magnet 3, so that the permanent magnet 3 moves towards the direction of the cylinder 4, the permanent magnet 3 drives the piston rod of the cylinder 4 to move towards the direction of the cylinder 4, and then pigment in the cylinder 4 is extruded and sprayed onto the cable 18, the leakage position of the cable 18 is convenient for the operator to check the leakage position of the cable 18 according to the cable 18, meanwhile, the outer cylinder 1 drops down due to gravity, and then the pigment is sprayed out when the discharging tube 10 of the cylinder 4 passes through the position of the cable 18, and the leakage position is very intelligent.
When the cable 18 is free of bubbles or wrinkles and cracks, i.e. the diameter of the cable 18 is not broken, the cable 18 is not in contact with the first pressure switch 17, and therefore the first electromagnet 2 is not energized, and the second electromagnet 13 is energized, i.e. the diameter of the inner cylinder 6 is not changed, so that the device slowly drops down, the situation that the device drops too fast to spray out pigment onto the cable 18 wire is avoided, or the position where pigment is sprayed out is inaccurate, and meanwhile the second electromagnet 13 is energized, so that the second piston 16 moves towards the cable 18, and pigment in the cylinder 4 is extruded onto the cable 18 wire.
The foregoing is merely exemplary embodiments of the present invention, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
1. A intelligent electrified detection device for cable, its characterized in that: the device comprises an outer cylinder (1), wherein a detection unit is arranged on the outer cylinder (1), the detection unit comprises a first electromagnet (2), a permanent magnet (3), a cylinder (4), a folding sleeve (5), an inner cylinder (6) and a conducting ring (7), an opening for expanding the outer cylinder (1) is formed in the outer cylinder (1), a sticky and detachable magic tape (8) is arranged on the opening, the conducting ring (7) is fixedly connected with the outer cylinder (1), the cylinder (4), the folding sleeve (5) and the first electromagnet (2) are fixedly arranged on the outer cylinder (1), pigments are arranged in the cylinder (4), the first electromagnet (2) and the conducting ring (7) are connected through a first conducting wire (15), the permanent magnet (3) is fixedly arranged on the inner cylinder (6), the inner cylinder (6) is of a telescopic structure, the upper end of the inner cylinder (6) is fixedly connected with the folding sleeve, the lower end of the inner cylinder (6) is fixedly connected with the conducting ring (7), the permanent magnet (3) is fixedly connected with the first electromagnet (2) through a first conducting wire (15), the first electromagnet (9) is fixedly connected with the first electromagnet (4), the piston rod (9) through the first electromagnet (9), the other end of the piston rod is fixedly connected with the inner cylinder (6), a discharging pipe (10) is arranged on the air cylinder (4), the discharging pipe (10) is positioned in a groove of the folding sleeve (5), a discharging hole of the discharging pipe (10) is matched with a cable (18), and an alarm is arranged on the conducting ring (7).
2. An intelligent live detection apparatus for cables according to claim 1, wherein: the conductive ring (7) is arc-shaped, the diameter of the conductive ring (7) is larger than that of the inner cylinder (6), and the conductive ring (7) is connected with the inner cylinder (6) through elastic materials.
3. An intelligent live detection apparatus for cables according to claim 2, characterized in that: the inner cylinder (6) is composed of a plurality of strip-shaped vertical plates (11), through holes are formed in each vertical plate (11), elastic ropes (12) are arranged in the through holes, the upper ends of the vertical plates (11) are fixedly connected with the folding sleeves, the lower ends of the vertical plates (11) are fixedly connected with the conducting rings (7), and openings identical to those of the outer cylinder (1) are formed in the inner cylinder (6).
4. An intelligent live detection apparatus for cables according to claim 3, wherein: the novel electromagnetic valve is characterized in that a second electromagnet (13) is further arranged on the outer cylinder (1), the second electromagnet (13) is connected with the conducting ring (7) through a second conducting wire (14), a second piston (16) is arranged on the cylinder (4), the second piston (16) is a permanent magnet, the magnetism of the second piston (16) is opposite to that of the second electromagnet (13), a pressure switch (17) for controlling the first electromagnet (2) and the second electromagnet (13) is arranged on the conducting ring (7), and the pressure switch (17) is matched with a cable (18) with a larger diameter.
5. An intelligent live detection apparatus for cables according to claim 1, wherein: the tail end of the discharging pipe (10) is provided with a spray head, and the diameter of the spray head is smaller than that of the discharging pipe (10).
6. An intelligent live detection apparatus for cables as claimed in claim 4, wherein: the outer cylinder (1) is provided with a through hole for a second lead (14) to pass through.
7. An intelligent live detection apparatus for cables as claimed in claim 6, wherein: the two detection units are symmetrically arranged along the central line of the outer cylinder (1).
8. An intelligent live detection apparatus for cables according to claim 1, wherein: the conductive ring (7) is hinged with a contact ring (19), the contact ring (19) has conductivity, and the contact ring (19) is contacted with the cable (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310746677.9A CN116660789B (en) | 2023-06-25 | 2023-06-25 | Intelligent live detection device for cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310746677.9A CN116660789B (en) | 2023-06-25 | 2023-06-25 | Intelligent live detection device for cable |
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| CN116660789A CN116660789A (en) | 2023-08-29 |
| CN116660789B true CN116660789B (en) | 2024-02-20 |
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| CN202310746677.9A Active CN116660789B (en) | 2023-06-25 | 2023-06-25 | Intelligent live detection device for cable |
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| CN117949388B (en) * | 2024-03-25 | 2024-06-11 | 天津滨电电力工程有限公司 | Power cable outer sheath defect detection equipment and detection method |
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