CN107329038A - Multicore cable testing auxiliary device and method of testing - Google Patents

Multicore cable testing auxiliary device and method of testing Download PDF

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Publication number
CN107329038A
CN107329038A CN201710727580.8A CN201710727580A CN107329038A CN 107329038 A CN107329038 A CN 107329038A CN 201710727580 A CN201710727580 A CN 201710727580A CN 107329038 A CN107329038 A CN 107329038A
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China
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measured
multicore cable
test
cored wire
area
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CN201710727580.8A
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Chinese (zh)
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CN107329038B (en
Inventor
李双龙
乔冬良
马士城
吴爱国
赵大伟
罗国强
聂学萃
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China Nuclear Industry Fifth Construction Co Ltd
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China Nuclear Industry Fifth Construction Co Ltd
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Priority to CN201710727580.8A priority Critical patent/CN107329038B/en
Publication of CN107329038A publication Critical patent/CN107329038A/en
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Publication of CN107329038B publication Critical patent/CN107329038B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58Testing of lines, cables or conductors
    • G01R31/60Identification of wires in a multicore cable
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing 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
    • G01R31/1227Testing 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
    • G01R31/1263Testing 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
    • G01R31/1272Testing 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

The invention belongs to multicore cable technical field of measurement and test, and in particular to a kind of multicore cable testing auxiliary device.During in order to solve to test multicore cable using conventional method, the problem of there is low test accuracy and low testing efficiency, the invention discloses a kind of multicore cable testing auxiliary device.The servicing unit is insulator structure, including separate area to be measured and test section, conducting medium is provided with inside wherein described area to be measured, the test section is provided with conductive plate, the short-circuit operation in multicore cable to be measured between multiple cored wires wherein can be realized by the conducting medium inside area to be measured, the fixation to cored wire end metal part to be measured can be realized by conductive plate.The multicore cable testing auxiliary device of the present invention is not only simple in structure, easy to operate, and when carrying out subtest to multicore cable, can improve the degree of accuracy of the efficiency and test result tested multicore cable.

Description

Multicore cable testing auxiliary device and method of testing
Technical field
The invention belongs to multicore cable technical field of measurement and test, and in particular to a kind of multicore cable testing auxiliary device and test Method.
Background technology
In nuclear power station, in order to ensure the power supply of electrical equipment in containment vessel, control, protection, core measurement, illumination Normal operation Deng work is, it is necessary to control the company that cable and service cable pass through electrical penetration to realize containment internal and external parts Connect, and these cables are generally multicore cable.After the laying for completing multicore cable is installed, in order to ensure each in multicore cable Mutually insulated between the connection of root cored wire and different cored wires is, it is necessary to test multicore cable, including conducting examination Test, Insulation Test between cored wire insulation against ground experiment and cored wire.
At present, when carrying out conduction test to multicore cable, a cored wire is chosen first as tested cored wire, by tested cored wire One end be connected with grounded screen, the other end is connected by universal meter with grounded screen, forms tested cored wire, universal meter and grounded screen Series loop between three;Then continuity test is carried out to tested cored wire by universal meter.Cored wire pair is carried out to multicore cable During ground Insulation Test, the positive pole of one end of tested cored wire and Insulation Resistance Tester is connected first, the other end passes through operator The hand-held fixation of member is placed in vacant state, while the negative pole of Insulation Resistance Tester is connected with grounded screen;Then insulated electro is passed through Hinder tester and cored wire insulation against ground experiment is carried out to tested cored wire.Carrying out cored wire to multicore cable during Insulation Test, first will One end of tested cored wire and the positive pole of Insulation Resistance Tester are connected, by connecting wire that cable is complete with other cored wires of one end Portion carries out short circuit and is connected with the negative pole of Insulation Resistance Tester, while the free end of tested cored wire is hand-held solid by operating personnel Fixation is in vacant state;Then Insulation Test carrying out cored wire to tested cored wire by Insulation Resistance Tester.Complete a core After the above-mentioned test of line, change another cored wire and repeat above-mentioned test process, until completing the test of all cored wires.
However, when being tested using the above method multicore cable, there is problems with:Because multicore cable is completed When laying but not coming into operation, every cored wire outer surface is equipped with insulated hull, so that the exposed metal part chi in cored wire end Very little very little.Now, if the connection of universal meter and Insulation Resistance Tester and cored wire to be measured is directly carried out, it is difficult to ensure that instrument It can fast and accurately complete to be connected with cored wire end and steady contact is remained in test process, especially carry out core Between line during Insulation Test, it is difficult to complete the short circuit between many cored wires and keep short circuit state, and a test is often changed Cored wire will re-start once the short-circuit operation of many cored wires, and these can all be impacted to test process, and not only influence is surveyed Efficiency is tried, and error can be produced to test result, the decline of test accuracy is caused.If entered in advance to the insulated hull of cored wire Row is divested, then can greatly increase test job amount, reduces testing efficiency.
The content of the invention
During in order to solve multicore cable to be tested using conventional method, there is test accuracy low low with testing efficiency The problem of, the present invention proposes a kind of multicore cable testing auxiliary device.The servicing unit is insulator structure, including mutually solely Vertical area to be measured and test section, wherein being provided with conducting medium inside the area to be measured, the test section is provided with conductive plate.
It is preferred that, the servicing unit is additionally provided with the first tie point and the second tie point;Wherein, first tie point and institute The second tie point is stated for electric conductor, and first tie point is connected with the conductive plate in the test section, and described second connects Contact is connected with the conducting medium in the area to be measured.
It is preferred that, the servicing unit also includes Yi Ce areas, wherein the Yi Ce areas pass through conducting medium with the area to be measured It is connected.
It is preferred that, the servicing unit is box body structure, wherein the test section is located at the upper surface of box body, the area to be measured It is located at the inside of box body with the Yi Ce areas.
It is further preferred that the area to be measured and the Yi Ce areas are provided with circular open, the opening is located at the upper of box body Surface, and provided with strip chute, one end of the chute and the open communication beside the opening.
It is a kind of using above-mentioned multicore cable testing auxiliary device carry out multicore cable method of testing, including preparation and Test job, wherein, the preparation, which is included in the area to be measured, adds conducting medium;The test job includes conducting Insulation Test between experiment, cored wire insulation against ground experiment and cored wire.
Wherein, the conduction test is concretely comprised the following steps:
Step S1, selects universal meter ohms range, a test pencil of universal meter is connected with first tie point, by general-purpose Another test pencil of table is connected with grounded screen;The end of all cored wires in multicore cable one end to be measured is placed in described to be measured Area;
Step S2, by the chute by the area to be measured cored wire to be measured take out, confirm cored wire mark and with it is described Conductive plate connection in test section, the cored wire end of multicore cable other end like-identified to be measured is connected with grounded screen;
Step S3, conduction test is carried out by universal meter to cored wire to be measured, records test data, and the core that will complete experiment Line is placed in the Yi Ce areas;
Step S4, repeat step S2 and step S3, are sequentially completed the conduction test of all cored wires.
Wherein, what the cored wire insulation against ground was tested concretely comprises the following steps:
Step T1, the positive test pencil of Insulation Resistance Tester is connected with first tie point, by Insulation Resistance Tester Negative test pencil be connected with second tie point, second tie point is connected with grounded screen;By multicore cable one end to be measured In the ends of all cored wires be placed in the area to be measured, all cored wires in the multicore cable other end to be measured are carried out and grounded screen Isolation processing;
Step T2, by the chute by the area to be measured cored wire to be measured take out and with the conduction in the test section Plate is connected;
Step T3, carries out cored wire insulation against ground experiment to cored wire to be measured by Insulation Resistance Tester, records test data, And the cored wire for completing experiment is placed in the Yi Ce areas;
Step T4, repeat step T2 and T3, are sequentially completed the cored wire insulation against ground experiment of all cored wires.
Wherein, Insulation Test is concretely comprised the following steps between the cored wire:
Step Y1, the positive test pencil of Insulation Resistance Tester is connected with first tie point, by Insulation Resistance Tester Negative test pencil be connected with second tie point;The end of all cored wires in multicore cable to be measured wherein one end is placed in described Area to be measured is simultaneously contacted with conducting medium;
Step Y2, by the chute by the area to be measured cored wire to be measured take out and with the conduction in the test section Plate is connected;Cored wire to be measured in the multicore cable other end to be measured and other cored wires are subjected to insulation processing;
Step Y3, Insulation Test carrying out cored wire to cored wire to be measured by Insulation Resistance Tester records test data, and The cored wire for completing experiment is placed in the Yi Ce areas;
Step Y4, repeat step Y2 and Y3, is sequentially completed Insulation Test between the cored wire of all cored wires.
It is preferred that, a multicore cable testing auxiliary device is respectively set at the two ends of multicore cable to be measured, wherein being located at Need not be connected in multicore cable with universal meter and Insulation Resistance Tester one end multicore cable testing auxiliary device be used for pair The cored wire of the end multicore cable is isolated and short-circuit operation.
Using the multicore cable testing auxiliary device of the present invention, when carrying out test operation to multicore cable, have with following Beneficial effect:
1st, in the multicore cable testing auxiliary device of the present invention, by setting area to be measured, test section and Yi Ce areas, and And conducting medium is added in area to be measured and Yi Ce areas, set the first tie point and second to connect respectively in test section and area to be measured Point.Now, by the conducting medium in area to be measured and Yi Ce areas, it is possible to achieve the short circuit connection between many cored wires, then pass through The connection of second tie point and grounded screen, can complete connection of many cored wires simultaneously with grounded screen again.By being led in test section The connection of electroplax and cored wire to be measured, and the first tie point and test instrumentation connection, it is possible to achieve cored wire and tester to be measured Fast and stable connection between table.So, in test process, cored wire and test instrumentation and cored wire and core can not only be improved Connection speed between line, improves testing efficiency, and can ensure the stability of connection, reduces the influence to test process, Improve the accuracy of test result.
2nd, multicore cable testing auxiliary device of the invention, is not only simple in structure, easy to make, using the plastics material of insulation Matter can be processed, and easy to use, from most common running water as conducting medium can carry out many cored wires it Between short-circuit operation.
Brief description of the drawings
Fig. 1 is the broken section structural representation of multicore cable testing auxiliary device of the present invention.
Embodiment
Technical scheme is described further below in conjunction with the accompanying drawings.
With reference to shown in Fig. 1, multicore cable testing auxiliary device of the invention is insulator structure, including separate is treated Survey area 1, test section 2 and Yi Ce areas 3.Wherein, conducting medium, and the two areas are provided with the inside in area 1 to be measured and Yi Ce areas 3 Domain is interconnected by conducting medium, and conductive plate 21 is provided with test section 2.When carrying out the test of multicore cable, area 1 to be measured For placing cored wire to be tested in multicore cable to be measured, test section 2 is used for the metal part for fixing cored wire end to be measured, surveyed Area 3 is used to place the cored wire for completing test.
It is preferred that, in the present invention, multicore cable testing auxiliary device uses and processes quadrangle box by plastic material Structure.Wherein, area 1 to be measured and Yi Ce areas 3 are placed in the inside of box body, in order to holding and to cored wire to conducting medium It is fixed;Test section 2 is placed in the upper surface of box body, in order to the dismounting of conductive plate 21 in cored wire to be measured and test section 2.In addition, Provided with a baffle plate 4 between area 1 to be measured and Yi Ce areas 3, for isolating the cored wire being located in two regions, it is to avoid two regions The end of internal core wire is entwined, so as to ensure the convenience taken out to cored wire.Meanwhile, the height of baffle plate 4 is designed as being less than The height of conducting medium, it is ensured that communicating between conducting medium in two regions.
In multicore cable testing auxiliary device, the first tie point 5 and the second tie point 6 are additionally provided with.Wherein, the first connection Point 5 is connected with the conductive plate 21 in test section 2, and the second tie point 6 is connected with the conducting medium in area 1 to be measured.In the present embodiment In, the first tie point 5 and the second tie point 6 use conducting metal bar structure, and one end and the conductive plate of the first tie point 5 21 are welded to connect, and the other end is in free state.The inside that box body is stretched into one end of second tie point 6 is contacted with conducting medium, The other end is located at box portion outside and is in free state
It is preferred that, the opening 11 in area 1 to be measured is arranged on the upper surface of box body and for circular configuration, while in opening 11 Side is provided with a strip chute 12, and one end of chute 12 is connected with opening 11.So, will be to be measured in area 1 to be measured When cored wire takes out, operation is taken out along the length direction of chute 12, can be substantially reduced in the process to cored wire to be measured Bending degree, so as to reduce the damage caused in test process to cored wire, is especially reduced to cored wire interior metal conductor Fracture damage.Similarly, the opening 31 in Yi Ce areas 3 is also disposed at the upper surface of box body and for circular configuration, while in opening 31 Side be again provided with a strip chute 32, for placing the protection during cored wire to cored wire.
It is first when testing multicore cable using the multicore cable testing auxiliary device of the present invention with reference to shown in Fig. 1 First, conducting medium is added in area 1 to be measured.In the present embodiment, conducting medium selects running water, and running water is added to flooded Do not have the height and position of baffle plate 4, it is ensured that being interconnected between area 1 and Yi Ce areas 3 to be measured.Then, by universal meter and insulated electro Resistance tester is tested multicore cable to be measured, including exhausted between conduction test, cored wire insulation against ground experiment and cored wire Edge is tested.In this example, side a and b is divided into at the two ends of cable under test, wherein in test process, universal meter and absolutely Edge resistance meter carries out direct or indirect connection with the cored wire at A ends in cable under test.
Using the multicore cable testing auxiliary device of the present invention, conduction test is carried out to multicore cable and concretely comprised the following steps:
Step S1, selects universal meter ohms range, a test pencil of universal meter is connected with the first tie point 5, by universal meter Another test pencil be connected with grounded screen.The end of all cored wires at A ends in multicore cable to be measured is placed in area 1 to be measured Portion.
Step S2, by chute 12 by area 1 to be measured cored wire to be measured take out, determine its mark and with test section 2 Conductive plate 21 is fixedly connected, and finds out the cored wire of multicore cable B ends like-identified to be measured, and its end is connected with grounded screen.This When, form closed-loop path between cored wire to be measured, conductive plate 21, the first tie point 5, universal meter and grounded screen.
In the present embodiment, the socket of multiple conductive materials is welded with conductive plate 21 by way of welding 22, the end for inserting cored wire to be measured makes the metal part of cored wire end to be measured be contacted with conductive plate 21.Meanwhile, utilize general After cored wire insertion socket 22 to be measured, the deformation-recovery power produced on cored wire to be measured makes the metal part card of cored wire end to be measured Inside socket 22, so that the metal part of cored wire end to be measured keeps being steadily contacted with conductive plate 21.
Step S3, conduction test is carried out by universal meter to cored wire to be measured, records test data, and the core that will complete experiment Line is placed in Yi Ce areas 3.
Step S4, repeat step S2 and step S3, are sequentially completed the conduction test of all cored wires in multicore cable.
Using the multicore cable testing auxiliary device of the present invention, the specific of cored wire insulation against ground experiment is carried out to multicore cable Step is:
Step T1, the positive pole test pencil of Insulation Resistance Tester is connected with the first tie point 5, by Insulation Resistance Tester Negative pole test pencil is connected with the second tie point 6, and the second tie point 6 is connected with grounded screen.By the institute at A ends in multicore cable to be measured The end for having cored wire is placed in the inside in area 1 to be measured, and is fully contacted with conducting medium, by multicore cable to be measured B ends it is all Cored wire carries out shielding isolation processing with grounded screen.
Step T2, is taken out the cored wire to be measured in area 1 to be measured by chute 12, and is consolidated with the conductive plate 21 in test section 2 Fixed connection.Now, one end of cored wire to be measured passes sequentially through conductive plate 21, the first tie point 5, Insulation Resistance Tester and second It is connected after tie point 6 with grounded screen, the other end is isolated with grounded screen shielding.Meanwhile, keep other cored wires at A ends in multicore cable In area 1 to be measured.
Step T3, carries out cored wire insulation against ground experiment to cored wire to be measured by Insulation Resistance Tester, records test data, And the cored wire for completing experiment is placed in Yi Ce areas 3.
Step T4, repeat step T2 and T3, are sequentially completed the cored wire insulation against ground experiment of all cored wires in multicore cable.
Using the multicore cable testing auxiliary device of the present invention, the specific step of Insulation Test carrying out cored wire to multicore cable Suddenly it is:
Step Y1, the positive pole test pencil of Insulation Resistance Tester is connected with the first tie point 5, by Insulation Resistance Tester Negative pole test pencil is connected with the second tie point 6.The end of all cored wires at A ends in multicore cable to be measured is placed in area 1 to be measured, with Conducting medium contacts to form short circuit connection.
Step Y2, is taken out the cored wire to be measured in area 1 to be measured by chute 12, and is consolidated with the conductive plate 21 in test section 2 Fixed connection.By the cored wire to be measured at B ends in multicore cable to be measured and other cored wires of end progress shielding isolation processing.Now, One end of cored wire to be measured is passed sequentially through to be connected with conductive plate 21, the first tie point 5, Insulation Resistance Tester and the second tie point 6 Connect, the other end is isolated with the shielding of other cored wires, and in separate state.Meanwhile, other cored wires at A ends are located at and treated in multicore cable Survey and connected in area 1 by conducting medium short circuit, and be connected by the second tie point 6 with the negative pole of Insulation Resistance Tester.
Step Y3, Insulation Test carrying out cored wire to cored wire to be measured by Insulation Resistance Tester records test data, and The cored wire for completing experiment is placed in Yi Ce areas 3.
Step Y4, repeat step Y2 and Y3, are sequentially completed Insulation Test between the cored wire of all cored wires in multicore cable.
In addition, the cored wire insulation against ground of same cored wire to be measured can also be tried as the case may be in process of the test The Insulation Test between cored wire is tested to complete together.After cored wire insulation against ground experiment is completed, directly by the second tie point 6 and grounded screen Between connection remove, can both re-operate Insulation Test Insulation Resistance Tester carries out cored wire to same cored wire to be measured.
It is preferred that, one multicore cable testing auxiliary device is respectively set at the two ends of multicore cable to be measured, wherein positioned at treating The multicore cable testing auxiliary device for surveying multicore cable A ends is referred to as multicore cable testing auxiliary device A, positioned at multicore cable to be measured The multicore cable testing auxiliary device at B ends is referred to as multicore cable testing auxiliary device B.So, multicore cable testing auxiliary device A Operation according to the method described above is used, and multicore cable testing auxiliary device B then shields to the cored wire at cable under test B ends Cover isolation and short-circuit operation.
For example, when carrying out conduction test to multicore cable, can be in multicore cable testing auxiliary device B area to be measured 1 Middle addition conducting medium, and be connected the second tie point 6 with grounded screen by connecting wire.So, by multicore cable to be measured The cored wire to be measured at middle B ends is placed in multicore cable testing auxiliary device B area to be measured 1, can not only make the end cored wire by leading Dielectric is rapidly completed the connection with grounded screen, and can ensure during conduction test, the end cored wire all the time with ground connection Net holding is stably connected with.
When carrying out cored wire insulation against ground experiment to multicore cable, utilize the insulation of multicore cable testing auxiliary device special In property, the area to be measured 1 that all cored wires at B ends in multicore cable to be measured are placed in multicore cable testing auxiliary device B, make the end Cored wire is all isolated with grounded screen shielding, so as to ensure in cored wire insulation against ground process of the test, the end cored wire all the time with grounded screen Keep isolation.
Being carried out cored wire multicore cable during Insulation Test, all cored wires at B ends in multicore cable to be measured are put first In multicore cable testing auxiliary device B area to be measured 1, then in test process, by cored wire to be measured at the corresponding end in the end Portion is inserted inside the socket 22 into test section 2, so as to the cored wire to be measured at the end be isolated with the shielding of other cored wires, so as to ensure Between cored wire during Insulation Test, the cored wire to be measured at B ends is isolated with the shielding between remaining cored wire in multicore cable.

Claims (10)

1. a kind of multicore cable testing auxiliary device, it is characterised in that the servicing unit is insulator structure, including separate Area to be measured and test section, wherein being provided with conducting medium inside the area to be measured, the test section is provided with conductive plate.
2. multicore cable testing auxiliary device according to claim 1, it is characterised in that the servicing unit is additionally provided with first Tie point and the second tie point;Wherein, first tie point and second tie point are electric conductor, and described first connects Contact is connected with the conductive plate in the test section, and second tie point is connected with the conducting medium in the area to be measured.
3. multicore cable testing auxiliary device according to claim 1, it is characterised in that the servicing unit also includes having surveyed Area, wherein the Yi Ce areas are connected with the area to be measured by conducting medium.
4. the multicore cable testing auxiliary device according to any one in claim 1-3, it is characterised in that the auxiliary is filled Box body structure is set to, wherein the test section is located at the upper surface of box body, the area to be measured and the Yi Ce areas are located at box body It is internal.
5. multicore cable testing auxiliary device according to claim 4, it is characterised in that the area to be measured and described surveyed Area is provided with circular open, and the opening is located at the upper surface of box body, and is provided with strip chute beside the opening, described One end of chute and the open communication.
6. a kind of multicore cable method of testing carried out using multicore cable testing auxiliary device described in above-mentioned any one, it is special Levy and be, including preparation and test job, wherein, the preparation, which is included in the area to be measured, adds conductive be situated between Matter;The test job includes Insulation Test between conduction test, cored wire insulation against ground experiment and cored wire.
7. multicore cable method of testing according to claim 6, it is characterised in that the specific steps of the conduction test For:
Step S1, selects universal meter ohms range, a test pencil of universal meter is connected with first tie point, by universal meter Another test pencil is connected with grounded screen;The end of all cored wires in multicore cable one end to be measured is placed in the area to be measured;
Step S2, by the chute by the area to be measured cored wire to be measured take out, confirm cored wire mark and with the test Conductive plate connection in area;The cored wire end of multicore cable other end like-identified to be measured is connected with grounded screen;
Step S3, conduction test is carried out by universal meter to cored wire to be measured, records test data, and the cored wire for completing experiment is put In the Yi Ce areas;
Step S4, repeat step S2 and step S3, are sequentially completed the conduction test of all cored wires.
8. multicore cable method of testing according to claim 6, it is characterised in that the tool of the cored wire insulation against ground experiment Body step is:
Step T1, the positive test pencil of Insulation Resistance Tester is connected with first tie point, by the negative of Insulation Resistance Tester Test pencil is connected with second tie point, and second tie point is connected with grounded screen;By in multicore cable one end to be measured The end of all cored wires is placed in the area to be measured, by all cored wires in the multicore cable other end to be measured carry out with grounded screen every From processing;
Step T2, the cored wire to be measured in the area to be measured is taken out and connect with the conductive plate in the test section by the chute Connect;
Step T3, cored wire insulation against ground experiment is carried out by Insulation Resistance Tester to cored wire to be measured, records test data, and will The cored wire for completing experiment is placed in the Yi Ce areas;
Step T4, repeat step T2 and T3, are sequentially completed the cored wire insulation against ground experiment of all cored wires.
9. multicore cable method of testing according to claim 6, it is characterised in that Insulation Test is specific between the cored wire Step is:
Step Y1, the positive test pencil of Insulation Resistance Tester is connected with first tie point, by the negative of Insulation Resistance Tester Test pencil is connected with second tie point;The end of all cored wires in multicore cable to be measured wherein one end is placed in described to be measured Area is simultaneously contacted with conducting medium;
Step Y2, the cored wire to be measured in the area to be measured is taken out and connect with the conductive plate in the test section by the chute Connect;Cored wire to be measured in the multicore cable other end to be measured and other cored wires are subjected to insulation processing;
Step Y3, Insulation Test carrying out cored wire to cored wire to be measured by Insulation Resistance Tester records test data, and will be complete Cored wire into experiment is placed in the Yi Ce areas;
Step Y4, repeat step Y2 and Y3, is sequentially completed Insulation Test between the cored wire of all cored wires.
10. the multicore cable method of testing according to any one in claim 7-9, it is characterised in that in multicore to be measured The two ends of cable respectively set a multicore cable testing auxiliary device, wherein in multicore cable need not with universal meter and The multicore cable testing auxiliary device that Insulation Resistance Tester connects one end is used to isolate the cored wire of the end multicore cable And short-circuit operation.
CN201710727580.8A 2017-08-23 2017-08-23 Multi-core cable test auxiliary device and test method Active CN107329038B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114236302A (en) * 2020-09-09 2022-03-25 上海电缆研究所有限公司 Testing method and system for cable state

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CN103675586A (en) * 2013-09-26 2014-03-26 北京电子工程总体研究所 Testing method and system for long-distance multi-core cable
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CN114236302B (en) * 2020-09-09 2024-04-30 上海电缆研究所有限公司 Testing method and system for cable state

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