CN111044821A - Cable simulation test system, simulation test connector and cable simulation test method - Google Patents
Cable simulation test system, simulation test connector and cable simulation test method Download PDFInfo
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- CN111044821A CN111044821A CN201911349978.8A CN201911349978A CN111044821A CN 111044821 A CN111044821 A CN 111044821A CN 201911349978 A CN201911349978 A CN 201911349978A CN 111044821 A CN111044821 A CN 111044821A
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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
- G01R31/003—Environmental or reliability tests
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- 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
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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Abstract
The invention relates to a cable simulation test system, a simulation test connector and a cable simulation test method. The cable simulation test system is used for simulating the operation of the tested cable assembly in a high-potential and high-humidity environment and testing the electrical performance of the tested cable assembly. The cable simulation test system comprises test equipment, a simulation test connector and a connection test connector. The simulation test connector and the connection test connector are electrically connected with the test equipment. One end of the simulation test connector is provided with an air inlet and a mounting hole communicated with the air inlet. One end of the tested cable assembly can be hermetically connected in the mounting hole, and the mounting hole is communicated with the wire core of the tested cable assembly. And the connecting test joint is used for being connected with the other end of the tested cable assembly in a sealing way. The cable simulation test system can effectively simulate the scene that moisture, water pressure or air pressure exist in the tested cable assembly, and can improve the accuracy of the electrical performance test result of the tested cable assembly in the high-potential and high-humidity environment.
Description
Technical Field
The invention relates to the technical field of cable system testing, in particular to a cable simulation testing system, a simulation testing connector and a cable simulation testing method.
Background
With the continuous development and application of cable systems, the service environment and the cable operating environment of the cable systems are more and more complex, for example, the environment with high topography and high humidity, so the conditions of moisture, water pressure, air pressure and the like existing in cable cores are more and more common.
In order to ensure the service performance of the cable system, the electrical performance of the electrical measurement system needs to be tested before the cable system is put into use. Generally, the electrical performance test for the cable system is performed directly by using a test device electrically connected to the cable system, and the operating environment of the cable is relatively ideal in the test process, and if a conventional cable test mode is used, the electrical performance parameters of the cable system in operation in a complex environment (for example, an environment with high terrain and high humidity) cannot be accurately obtained, so that the test result of the cable system in the complex environment is inaccurate.
Disclosure of Invention
Therefore, it is necessary to provide a cable simulation test system, a simulation test connector and a cable simulation test method capable of improving the accuracy of the test result, aiming at the problem that the conventional cable test method has low accuracy of the test result.
A cable simulation test system is used for simulating the operation of a tested cable assembly in a high-potential and high-humidity environment and testing the electrical performance of the tested cable assembly, and comprises test equipment, a simulation test connector and a connection test connector, wherein the simulation test connector and the connection test connector are electrically connected with the test equipment;
the simulation test connector comprises a simulation test connector body, a tested cable assembly and a connecting test connector body, wherein one end of the simulation test connector body is provided with an air inlet and a mounting hole communicated with the air inlet, one end of the tested cable assembly can be connected in the mounting hole in a sealing mode, the mounting hole is communicated with a cable core of the tested cable assembly, and the connecting test connector body is used for being connected with the other end of the tested cable assembly in a sealing mode.
In one embodiment, the simulation test connector further defines a connection through hole, the connection test connector further defines a mounting through hole, and the test device includes two test leads, and the two test leads are respectively mounted in the connection through hole and the mounting through hole, so that the test device is electrically connected to the simulation test connector and the connection test connector.
In one embodiment, the dummy test contact and the connection test contact are both copper contacts.
In one embodiment, the air inlet pipe further comprises an air inlet pipe, and one end of the air inlet pipe is connected in the air inlet hole in a sealing mode and is communicated with the air inlet hole.
In one embodiment, the air conditioner further comprises a regulating valve, and the regulating valve is mounted on the air inlet pipe.
In one embodiment, the test device further comprises a pneumatic pump, and the pneumatic pump can be installed at one end, far away from the simulation test connector, of the air inlet pipe.
In one embodiment, the test device further comprises a first cold-shrink cable terminal and a second cold-shrink cable terminal, wherein one end of the first cold-shrink cable terminal is connected in the mounting hole in a sealing mode, the other end of the first cold-shrink cable terminal is used for being connected with one end of the tested cable assembly, one end of the second cold-shrink cable terminal is connected with the connection test connector, and the other end of the second cold-shrink cable terminal is used for being connected with the other end of the tested cable assembly.
In one embodiment, the test device further comprises an insulating sealing sleeve, and the insulating sealing sleeve is sleeved at the joint of the first cold-shrink cable terminal and the simulation test connector.
The utility model provides a simulation test connects for connect test equipment and surveyed cable subassembly, simulation test connects's one end seted up the inlet port and with the mounting hole of inlet port intercommunication, but the one end seal of surveyed cable subassembly connects in the mounting hole, and makes the mounting hole with the sinle silk intercommunication of surveyed cable subassembly, simulation test connects's the other end be used for being connected with the test equipment electricity.
The cable simulation test system and the simulation test connector thereof are characterized in that the test equipment, the simulation test connector, the tested cable assembly and the connection test connector are sequentially connected to form a test loop. When the cable assembly is used, water is injected into the air inlet, the water is ensured to flow into the wire core of the cable assembly to be tested, and then the cable assembly is kept still for a period of time, so that the water is ensured to fully enter the cable assembly; then, inputting gas into the gas inlet, ensuring that the gas enters the wire core of the tested cable assembly, and forming gas pressure in the wire core of the tested cable assembly so as to simulate water pressure formed in the wire core of the tested cable assembly in a high-earth-potential environment; and starting the test equipment to test the electrical performance of the tested cable assembly in a high-terrain and high-humidity environment. Therefore, the cable simulation test system can effectively simulate the scene that moisture, water pressure or air pressure exist in the tested cable assembly, and can improve the accuracy of the electrical performance test result of the tested cable assembly in the high-potential and high-humidity environment.
A cable simulation test method for testing electrical performance of a tested cable assembly in a high-terrain, high-humidity environment, the method comprising the steps of:
adding water into the wire core of the tested cable assembly and standing;
pressurizing the wire core of the tested cable assembly;
and carrying out electrical performance test on the tested cable assembly by using the test equipment.
According to the cable simulation test method, water is added into the wire core of the tested cable assembly and the tested cable assembly is placed still, so that a scene of the wire core of the tested cable assembly when water enters in the high-humidity environment is simulated; pressurizing the wire core of the tested cable assembly to simulate a scene of forming water pressure in the wire core of the tested cable assembly when the tested cable assembly is located in a high-potential environment; through the two steps, the operation of the tested cable assembly under the high-ground-potential and high-humidity environment can be simulated, and then the test equipment is used for testing the electrical performance of the tested cable assembly, so that the accuracy of the electrical performance test result of the tested cable assembly under the high-ground-potential and high-humidity environment is improved.
Drawings
FIG. 1 is a schematic diagram of a cable simulation test system according to a preferred embodiment of the present invention;
FIG. 2 is a cross-sectional view of a simulated test joint in the cable simulation test system of FIG. 1;
FIG. 3 is a flow chart of a cable simulation test method according to a preferred embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present, unless otherwise specified. It will also be understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or one or more intervening elements may also be present.
Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.
Furthermore, the drawings are not 1: 1, and the relative dimensions of the various elements in the figures are drawn for illustration only and not necessarily to true scale.
Referring to fig. 1, a cable simulation test system 10 is provided. The cable simulation test system 10 is used for simulating the operation of the tested cable assembly 20 in a high-terrain and high-humidity environment, and performing an electrical performance test on the tested cable assembly 20.
The cable assembly 20 includes a first cable 21, a first connector 22 connected to one end of the first cable 21, a second connector 23 connected to the first connector 22, and a second cable 24 connected to the second connector 23. Thus, the cable simulation test system 10 is mainly used for testing the electrical performance of the first cable 21, the first connector 22, the second cable 24, and the second connector 23 when they are operated in a high-potential and high-humidity environment. The first cable 21 and the second cable 24 are composed of a wire core, an insulating layer, a shielding layer and a protective layer, and are used for transmitting and distributing electric energy. In addition, moisture can be stored in the core of the first cable 21 and the core of the second cable 24. It should be noted that the core of the first cable 21 and the core of the second cable 24 together constitute the core of the cable assembly 20 under test.
Specifically, the tested cable assembly 20 further includes a two-way sleeve 25, and two ends of the two-way sleeve 25 are respectively connected to the first connector 22 and the second connector 23 in a sealing manner. The two-way sleeve 25 facilitates the connection of the first cable 21 and the second cable 24, and ensures the smooth circuit between the first cable 21 and the second cable 24.
The cable simulation test system 10 in the preferred embodiment of the present invention includes a test apparatus 100, a simulation test connector 200, and a connection test connector 300. The simulation test socket 200 and the connection test socket 300 are electrically connected to the test apparatus 100.
Referring to fig. 2, an air inlet 210 and a mounting hole 220 communicating with the air inlet 210 are formed at one end of the simulation test connector 200. One end of the tested cable assembly 20 can be hermetically connected in the mounting hole 220, and the mounting hole 220 is communicated with the wire core of the tested cable assembly 20. The connection test connector 300 is used to connect with the other end of the tested cable assembly 20 in a sealing manner.
Therefore, a test loop is formed among the test equipment 100, the simulation test connector 200, the tested cable assembly 20 and the connection test connector 300, so that the test equipment 100 can conveniently test the electrical performance of the tested cable assembly 20. The test equipment 100 can be power frequency voltage-withstanding partial discharge test equipment 100, lightning impulse test equipment 100, temperature rise test equipment 100 and the like so as to test different electrical properties of the tested cable assembly.
In the actual use process, the two ends of the tested cable assembly 20 are only required to be respectively connected to the simulation test connector 200 and the connection test connector 300 in a sealing manner, so that the connection between the tested cable assembly 20 and the test equipment 100 can be realized, and the tested cable assembly 20 can be conveniently installed on the test equipment 100.
When the water-saving test device is used, water is injected into the air inlet holes 210, the water in the air inlet holes 210 flows into the wire cores of the first cables 21 through the mounting holes 220, and the test device is kept still for a period of time (for example, 24 hours) until the water hardly flows in the tested cable assembly 20, so that the water can reach any position in the tested cable assembly 20, which is communicated with the wire cores; then, gas (which may be inert protective gas such as argon, nitrogen, etc.) is input into the gas inlet 210, and the gas is ensured to flow into the wire core of the tested cable, so as to form gas pressure in the tested cable, so as to simulate the water pressure formed in the wire core of the tested cable assembly 20 in the high-ground potential environment; the test apparatus 100 is activated to test the electrical performance of the cable assembly under test 20 in a high-potential, high-humidity environment. Therefore, the cable simulation test system 10 can effectively simulate the scene that the inside of the tested cable assembly 20 has moisture, water pressure or air pressure, so as to improve the accuracy of the electrical performance test result of the tested cable assembly 20 in the high-potential and high-humidity environment.
Specifically, when the cable assembly 20 to be tested includes the first cable 21, the first connector 22, the two-way sleeve 25, the second connector 23 and the second cable 24, the installation hole 220 is used for being hermetically connected to an end of the first cable 21 away from the first connector 22, and enabling the core of the first cable 21 to be communicated with the installation hole 220, and the connection test connector 300 is used for being hermetically connected to an end of the second cable 24 away from the second connector 23. When the electrical performance of the tested cable assembly 20 needs to be tested, only the end of the first cable 21 away from the first connector 22 needs to be connected to the mounting hole 220 in a sealing manner, and the end of the second cable 24 away from the second connector 23 needs to be connected to the connection testing connector 300 in a sealing manner, so as to facilitate the subsequent electrical performance testing of the first cable 21, the second cable 24, the first connector 22 and the second connector 23. Thus, a test loop is formed between the test apparatus 100, the analog test connection 200, the first cable 21, the first connection 22, the two-way bushing 25, the second connection 23, the second cable 24, and the connection test connection 300.
In the actual test process, water and gas are injected into the wire core of the first cable 21 through the air inlet holes 210 so as to simulate the operation condition of the tested cable assembly 20 in a high-terrain and high-humidity environment. When the sealing performance of the first joint 22 and the second joint 23 needs to be detected, after the tested cable assembly 20 is tested, the first joint 22 and the second joint 23 can be detached respectively, and whether the inside is moist or water drops are formed or not can be observed, so that the sealing performance of the first joint 22 and the second joint 23 can be judged.
Referring to fig. 1 again, in the present embodiment, the simulation test connector 200 is further provided with a connecting through hole 230. The connection test connector 300 is further provided with a mounting through hole 310. The test apparatus 100 includes two test leads 110. The two test leads 110 are respectively installed in the connection through-holes 230 and the installation connection through-holes 230 so that the test equipment 100 is electrically connected to the simulation test socket 200 and the connection test socket 300, respectively. Therefore, when the simulation test socket 200 and the connection test socket 300 need to be mounted on the test equipment 100, the connection between the simulation test socket 200 and the connection test socket 300 and the test equipment 100 can be realized only by inserting the two test leads 110 of the test equipment 100 into the connection through-holes 230 and the mounting through-holes 310, respectively. Therefore, the installation of the dummy test socket 200 and the connection test socket 300 is facilitated by the arrangement of the connection through-holes 230 and the installation through-holes 310.
In the present embodiment, the dummy test socket 200 and the connection test socket 300 are both copper sockets. Because copper has better electric conductivity and the purchase cost is lower, the simulation test connector 200 and the connection test connector 300 are both set as copper connectors, the electric conductivity of the simulation test connector 200 and the connection test connector 300 is ensured, and the processing cost is reduced, so that the processing cost of the cable simulation test system 10 is effectively reduced.
In this embodiment, the cable simulation test system 10 further includes an air inlet pipe 400. One end of the air inlet pipe 400 is connected to the air inlet hole 210 in a dense manner and is communicated with the air inlet hole 210. The air inlet pipe 400 may be hermetically coupled to the air inlet hole 210 by means of screwing, crimping, or the like. An end of the air inlet tube 400 remote from the simulated test connection 200 is adapted to communicate with an external water or air source. Specifically, the length of the air inlet tube 400 may be selected according to the distance between the cable simulation test system 10 and the external water source and/or the external air source. Therefore, the air inlet pipe 400 is arranged, so that the cable simulation test system 10 is convenient to use.
Further, in the present embodiment, the cable simulation test system 10 further includes a regulating valve 500. The regulating valve 500 is installed on the intake duct 400. In the actual use process, the opening of the valve port of the regulating valve 500 is adjusted, so as to adjust the air pressure and the water inflow in the tested cable assembly 20, and control the opening and closing of the air inlet 210. Therefore, the installation of the regulating valve 500 further improves the convenience of the use of the cable simulation test system 10.
Further, in the present embodiment, the cable simulation test system 10 further includes a pneumatic pump (not shown). A pneumatic pump may be mounted at the end of the air inlet tube 400 remote from the simulated test connection 200. Thus, the regulator valve 500 is located between the pneumatic pump and the analog test connection 200. Specifically, the pneumatic pump is detachably mounted to an end of the intake pipe 400 remote from the simulated test connection 200. The air pressure pump is mainly used for storing and compressing air, and inputting the compressed air into the wire core of the tested cable assembly 20 so as to keep the air pressure in the wire core of the tested cable assembly 20. When water needs to be injected into the tested cable assembly 20, the pneumatic pump can be detached from the air inlet pipe 400; when it is necessary to deliver gas into the tested cable assembly 20, a pneumatic pump may be installed at an end of the gas inlet tube 400 far from the simulated test connector 200 to facilitate the delivery of gas. The pneumatic pump can be used for storing inert protective gases such as argon, nitrogen and the like.
In this embodiment, the cable simulation test system 10 further includes a first cold shrink cable termination 600 and a second cold shrink cable termination 700. One end of the first cold-shrink cable terminal 600 is hermetically connected in the mounting hole 220, and the other end is used for connecting with one end of the cable assembly 20 to be tested. One end of the second cold shrink cable terminal 700 is connected to one end of the connection test connector 300 away from the testing device 100, and the other end is used for connecting to the other end of the tested cable assembly 20. Thus, both ends of the tested cable assembly 20 are connected to the simulation test connector 200 and the connection test connector 300 through the first cold-shrink cable terminal 600 and the second cold-shrink cable terminal 700, respectively.
Specifically, when the tested cable assembly 20 includes the first cable 21 and the second cable 24, the end of the first cable 21 away from the first connector 22 and the end of the second cable 24 away from the second connector 23 are respectively connected to the simulation test connector 200 and the connection test connector 300 through the first cold-shrink cable terminal 600 and the second cold-shrink terminal connector. The first cold-shrink cable terminal 600 and the second cold-shrink cable terminal 700 both have electrical protection performance, so the arrangement of the first cold-shrink cable terminal 600 and the second cold-shrink cable terminal 700 can ensure electrical safety between the first cable 21 and the simulation test connector 200 and between the second cable 24 and the connection test arrow.
Further, in the present embodiment, the cable simulation test system 10 further includes an insulation sealing sleeve 800. The insulation sealing boot 800 is installed at the connection between the first cold shrink cable terminal 600 and the simulation test connector 200. The insulating sealing sleeve 800 is generally made of materials with low conductivity, such as silicon gel and rubber, so the insulating sealing sleeve 800 plays the role of insulation and sealing. Therefore, the arrangement of the insulating sealing sleeve 800 can not only avoid the occurrence of the situations of electric leakage, air leakage and the like at the joint of the first cold-shrink cable terminal 600 and the simulation test connector 200, but also greatly improve the reliability of the cable simulation test system 10.
Further, in the present embodiment, the insulating sealing sleeve 800 is a silicone sleeve. The silica gel has high elasticity and good electrical insulation performance, so the insulation sealing sleeve 800 is set as a silica gel sleeve, so that the electrical insulation performance and the sealing performance of the insulation sealing sleeve 800 are better.
The cable simulation test system 10, the test equipment 100, the simulation test connector 200, the tested cable assembly 20 and the connection test connector 300 are connected in sequence to form a test loop. When in use, water is injected into the air inlet 210, the water is ensured to flow into the wire core of the tested cable assembly 20, and the cable assembly is kept still for a period of time to ensure that the water fully enters the cable assembly; then, gas is input into the gas inlet holes 210, and the gas is ensured to enter the wire cores of the tested cable assembly 20, so that gas pressure is formed in the wire cores of the tested cable assembly 20, and the water pressure formed in the wire cores of the tested cable assembly in a high-potential environment is simulated; the test apparatus 100 is activated to test the electrical performance of the cable assembly under test 20 in a high-potential, high-humidity environment. Therefore, the cable simulation test system 10 can effectively simulate the scene that moisture, water pressure or air pressure exist in the tested cable assembly 20, so as to improve the accuracy of the electrical performance test result of the tested cable assembly 20 in the high-potential and high-humidity environment.
Based on the same inventive concept, the invention also provides an analog test connector 200 for connecting the test equipment 100 and the tested cable assembly 20.
Referring to fig. 2 again, one end of the simulation test connector 200 is opened with an air inlet 210 and a mounting hole 220 communicating with the air inlet 210. One end of the tested cable assembly 20 can be hermetically connected in the mounting hole 220, and the mounting hole 220 is communicated with the wire core of the tested cable assembly 20. The other end of the analog test connection 200 is used to electrically connect with the test equipment 100.
When the test device is used, one end of the simulation test connector 200 is installed on the test device 100, one end of the tested cable assembly 20 is hermetically connected into the installation hole 220, so that the tested cable assembly 20 can be connected with the test device 100, and meanwhile, the other end of the tested cable assembly 20 is electrically connected with the test device 100, so that a test loop formed by the test device 100, the simulation test connector 200 and the tested cable assembly 20 can be formed, and the electrical performance of the tested cable assembly 20 can be conveniently tested.
Specifically, the end of the simulation test connector 200 away from the mounting hole 220 is provided with a connecting through hole 230. When it is desired to mount the dummy test socket 200 on the test equipment 100, it is only necessary to mount the leads of the test equipment 100 in the connection through holes 230 so that the dummy test socket 200 is electrically connected to the test equipment 100.
When the electrical performance of the tested cable assembly 20 in the high-terrain and high-humidity environment needs to be simulated, water and gas are injected into the wire core of the tested cable assembly 20 through the air inlet holes 210 so as to simulate the scene that water, air pressure or water pressure exists in the wire core of the tested cable assembly 20; and then the electrical performance of the tested cable assembly 20 under the high-terrain and high-humidity environment is tested by using the testing equipment 100.
Referring to fig. 3, the present invention also provides a cable simulation testing method for testing the electrical performance of the tested cable assembly in a high-terrain and high-humidity environment. The cable simulation test method includes steps S001 to S003:
step S001: and adding water into the wire core of the tested cable assembly and standing.
Wherein the standing time is greater than or equal to 24 hours to ensure the uniformity of water distribution in the cable assembly. And adding water into the wire core of the tested cable assembly to simulate the scene that the tested cable assembly is in a high-humidity environment and water exists in the wire core of the tested cable assembly.
The tested cable assembly comprises a first cable, a first connector connected with one end of the first cable, a second connector connected with the first connector and a second cable connected with the second connector. Specifically, water is injected into a wire core of the first cable, and the cable assembly is subjected to standing treatment. If the sealing performance of the first joint and the second joint is not good, after the tested cable assembly is stood for a period of time, water injected into the first cable core flows into the first joint, the second joint and the second cable core; if the sealing performance of the first joint and the second joint is good, water injected into the core of the first cable can be uniformly distributed in the core of the first cable after the cable assembly is kept still for a period of time.
Step S002: and (4) carrying out pressurization treatment on the wire core of the tested cable assembly.
Specifically, gas is input into the wire core of the tested cable assembly, so that air pressure and water pressure exist in the wire core of the tested cable assembly, and the scene that the tested cable assembly is in a high-potential environment and water pressure is formed in the wire core of the tested cable assembly can be simulated. Specifically, gas is input into the core of the first cable.
Step S003: and carrying out electrical performance test on the tested cable by using the test equipment.
Therefore, the test equipment can be used for testing the electrical performance of the tested cable assembly in the high-ground-potential and high-humidity environment, so that the accuracy of testing the electrical performance of the tested cable assembly in the high-ground-potential and high-humidity environment is improved.
In this embodiment, step S002 is followed by: and carrying out sealing performance test on the tested cable assembly.
Specifically, whether air leakage and water leakage exist between the first cable and the first joint, between the first joint and the second joint and between the second joint and the second cable or not is checked, so that the accuracy of the follow-up electrical performance test on the tested cable assembly is guaranteed.
In this embodiment, step S003 is followed by: and disassembling the tested cable assembly and checking the water infiltration condition in each element of the tested cable assembly.
Specifically, the first joint and the second joint are respectively disassembled from the first cable and the second cable, and the moisture permeation condition in the first joint and the second joint is respectively checked.
If first joint or second connect and have waterproof function, then can completely cut off inside steam gets into first joint or the second connects, through pulling down first joint and second joint, it all has the condition of drop of water or water mark to inspect inside, judges first joint and second and connects whether all have waterproof function.
According to the cable simulation test method, water is input into a wire core of the tested cable assembly and stands for a preset time to simulate the water inlet condition of the tested cable assembly in a high-humidity environment; pressurizing the wire core of the tested cable assembly to simulate the condition of forming water pressure in the wire core of the tested cable assembly when the tested cable assembly is located in a high-potential environment; through the two steps, the operation of the tested cable assembly under the high-ground-potential and high-humidity environment can be simulated, and then the test equipment is used for testing the electrical performance of the tested cable assembly, so that the accuracy of the test result of the electrical performance of the tested cable assembly under the high-ground-potential and high-humidity environment is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A cable simulation test system is used for simulating the operation of a tested cable assembly in a high-potential and high-humidity environment and testing the electrical performance of the tested cable assembly, and is characterized by comprising test equipment, a simulation test connector and a connection test connector, wherein the simulation test connector and the connection test connector are electrically connected with the test equipment;
the simulation test connector comprises a simulation test connector body, a tested cable assembly and a connecting test connector body, wherein one end of the simulation test connector body is provided with an air inlet and a mounting hole communicated with the air inlet, one end of the tested cable assembly can be connected in the mounting hole in a sealing mode, the mounting hole is communicated with a cable core of the tested cable assembly, and the connecting test connector body is used for being connected with the other end of the tested cable assembly in a sealing mode.
2. The cable simulation test system of claim 1, wherein the simulation test connector further defines a connection through hole, the connection test connector further defines a mounting through hole, and the test device includes two test leads, the two test leads being mounted in the connection through hole and the mounting through hole, respectively, so that the test device is electrically connected to the simulation test connector and the connection test connector, respectively.
3. The cable simulation test system of claim 1, wherein the simulation test connection and the connection test connection are both copper connections.
4. The cable simulation test system of claim 1, further comprising an air inlet tube, wherein one end of the air inlet tube is hermetically connected to the air inlet hole and is communicated with the air inlet hole.
5. The cable simulation test system of claim 4, further comprising a regulator valve mounted on the air inlet tube.
6. The cable simulation test system of claim 5, further comprising a pneumatic pump mountable at an end of the air inlet tube remote from the simulation test connection.
7. The cable simulation test system of claim 1, further comprising a first cold-shrink cable terminal and a second cold-shrink cable terminal, wherein one end of the first cold-shrink cable terminal is hermetically connected in the mounting hole, and the other end of the first cold-shrink cable terminal is used for being connected with one end of the tested cable assembly, one end of the second cold-shrink cable terminal is connected with the connection test connector, and the other end of the second cold-shrink cable terminal is used for being connected with the other end of the tested cable assembly.
8. The cable simulation test system of claim 7, further comprising an insulating gland disposed at a junction of the first cold shrink cable termination and the simulation test connection.
9. The simulation test joint is used for connecting test equipment and a tested cable assembly and is characterized in that one end of the simulation test joint is provided with an air inlet and a mounting hole communicated with the air inlet, one end of the tested cable assembly can be connected in the mounting hole in a sealing mode, the mounting hole is communicated with a wire core of the tested cable assembly, and the other end of the simulation test joint is used for being electrically connected with the test equipment.
10. A cable simulation test method for testing the electrical performance of a tested cable assembly in a high-terrain and high-humidity environment is characterized by comprising the following steps:
adding water into the wire core of the tested cable assembly and standing;
pressurizing the wire core of the tested cable assembly;
and carrying out electrical performance test on the tested cable assembly by using the test equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911349978.8A CN111044821A (en) | 2019-12-24 | 2019-12-24 | Cable simulation test system, simulation test connector and cable simulation test method |
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| CN201911349978.8A CN111044821A (en) | 2019-12-24 | 2019-12-24 | Cable simulation test system, simulation test connector and cable simulation test method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911349978.8A Pending CN111044821A (en) | 2019-12-24 | 2019-12-24 | Cable simulation test system, simulation test connector and cable simulation test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855107A (en) * | 2020-07-08 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Method for testing sealing performance of cold-shrinkage intermediate joint of cable of 35kV or below |
| CN113834954A (en) * | 2021-09-22 | 2021-12-24 | 南澳电气(武汉)有限公司 | NAKQC switch cabinet running state intelligent monitoring maintains device and system |
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2019
- 2019-12-24 CN CN201911349978.8A patent/CN111044821A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855107A (en) * | 2020-07-08 | 2020-10-30 | 国网天津市电力公司电力科学研究院 | Method for testing sealing performance of cold-shrinkage intermediate joint of cable of 35kV or below |
| CN111855107B (en) * | 2020-07-08 | 2022-07-29 | 国网天津市电力公司电力科学研究院 | Method for testing sealing performance of cold-shrinkage intermediate joint of cable of 35kV or below |
| CN113834954A (en) * | 2021-09-22 | 2021-12-24 | 南澳电气(武汉)有限公司 | NAKQC switch cabinet running state intelligent monitoring maintains device and system |
| CN113834954B (en) * | 2021-09-22 | 2024-02-20 | 南澳电气(武汉)有限公司 | Intelligent monitoring and maintaining device and system for operation state of NAKQC switch cabinet |
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