CN109239542A - A kind of method of mineral insulated cable proof voltage detection - Google Patents
A kind of method of mineral insulated cable proof voltage detection Download PDFInfo
- Publication number
- CN109239542A CN109239542A CN201810955637.4A CN201810955637A CN109239542A CN 109239542 A CN109239542 A CN 109239542A CN 201810955637 A CN201810955637 A CN 201810955637A CN 109239542 A CN109239542 A CN 109239542A
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- cable
- core wire
- pressure tester
- anode
- core
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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
- G01R31/12—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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses a kind of methods of mineral insulated cable proof voltage detection, and the detection method comprises the following steps: peeling off cable core；Any one core wire is connected using pressure tester anode, cathode is separately connected remaining core wire and cable cover(ing), records experimental data by pressure tester；The anode of pressure tester is shifted into another core wire, cathode connects remaining core wire and cable cover(ing), records experimental data by pressure tester；Until all core wires are connect with the anode of proof voltage tester, and experimental data is recorded by pressure tester, test terminates.The present invention gradually detects each core wire by connecting to the core wire between cable, using resistance test instrument, can improve efficiency to save the time guaranteeing the number for reducing resistance test under the premise of reaching detection effect.
Description
Technical field
The present invention relates to cable detection technical field, specially a kind of method of mineral insulated cable proof voltage detection.
Background technique
Mineral insulated cable is broadly divided into fireproof cable, heating cable and cable for measuring temperature etc., in the development of the national economy
Play the role of extremely important.For mineral insulation due to many merits such as its high temperature resistant, nontoxic, use is more and more extensive.Mineral
Insulated cable is made of conductor, insulating materials and sheath material three parts, and wherein the insulating materials overwhelming majority is magnesia.Conductor
Insulating materials is filled between conductor and conductor and protective metal shell.For the integrity that insulate between guaranteeing and can
Meet the needs used, needs to carry out proof voltage detection.Proof voltage detection is a detection insulation tolerance operating voltage or excessively electric
The capacity experimental of pressure.It needs to carry out proof voltage detection between conductor and sheath and between conductor and conductor.
Proof voltage detection is a very important detection in mineral insulated cable detection process, and traditional detection mode is
Every cable is all detected, i.e., 100% detection.Mineral insulated cable can have one or more core wires according to customer demand.
According to the proof voltage detection method of specification, the cable of single needs to test 1 time, and two-core cable needs to test 2+1 times, three-core cable
Need to test 3+2+1 times, quad needs to detect 4+3+2+1 times, and n core cable needs to detect n+(n-1)+...+1 time.It is conventional
Proof voltage detects often, especially the proof voltage detection of multicore cable, needs to take a significant amount of time, conventional proof voltage detection
Often, the proof voltage detection of especially multicore cable, needs to take a significant amount of time.
Summary of the invention
The purpose of the present invention is to provide a kind of methods of mineral insulated cable proof voltage detection, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme: a kind of side of mineral insulated cable proof voltage detection
Method includes the following steps；
Step 1 peels off cable core；
Step 2 connects any one core wire using pressure tester anode, and cathode is separately connected remaining core wire and cable cover(ing),
Experimental data is recorded by pressure tester；
The anode of pressure tester is shifted to another core wire by step 3, and cathode connects remaining core wire and cable cover(ing), passes through
Pressure tester records experimental data；
Step 4 repeats step 3, until all core wires were connect with the anode of proof voltage tester, and passes through voltage-withstand test
Instrument records experimental data, and test terminates.
A kind of method of mineral insulated cable proof voltage detection, includes the following steps；
Step 1 will at least two cables stack, and peel off cable core, and cable cover(ing) is made to contact with each other；
Step 2 numbers the core wire in every cable one by one, and makes in the core wire and remaining cable in any one cable
Core wire number corresponds；
Step 3 will number consistent core wire series connection using conducting wire as all the way between each cable；
Step 4, by the anode connection of pressure tester, wherein core wire, cathode connect remaining core wire and cable cover(ing), pass through all the way
Pressure tester records experimental data；
Step 5: repeating step 4, until the core wire of different numbers was connect with the anode of pressure tester, and passes through pressure resistance
Tester records experimental data, and test terminates.
The cable cover(ing) is metal material.
The voltage of the pressure tester is that twice of cable rated operational voltage adds 1000V again, and the voltage detecting time is not
Less than 1min.
As shown from the above technical solution, the present invention uses resistance test instrument by connecting to the core wire between cable
Each core wire is gradually detected, the number of resistance test can be reduced under the premise of guaranteeing to reach detection effect, thus
The time has been saved, efficiency is improved.
Detailed description of the invention
Fig. 1 is connection schematic diagram of the present invention；
Fig. 2 is multicore cable schematic diagram of the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing:
Embodiment one:
As shown in Fig. 1, when a piece quad of detection；
Step 1 peels off cable core；
Step 2 connects any one core wire using pressure tester anode, and cathode is separately connected remaining three core wires and cable
Sheath records experimental data by pressure tester；
The anode of pressure tester is shifted to another core wire by step 3, and cathode connects remaining three core wires and cable cover(ing), leads to
Cross pressure tester record experimental data；
Step 4 repeats step 3, until all core wires are connect with the anode of proof voltage tester, and passes through pressure tester
Experimental data is recorded, test terminates.
Embodiment two:
As shown in Fig. 2, when three three-core cables of detection；
Step 1 stacks three cables, peels off cable core, and cable cover(ing) is made to contact with each other；
Step 2 numbers three core wires in every cable, respectively 1,2 and 3 one by one；
Step 3, using conducting wire by No. 1 core wire and third root electricity in No. 1 core wire and second cable in first cable
In cable No. 1 core wire series connection, using conducting wire by No. 2 core wires and second cable in first cable No. 2 core wires and
No. 2 core wires series connection in third root cable, using conducting wire by No. 3 in No. 3 core wires and second cable in first cable
No. 3 core wires series connection in core wire and third root cable；
The anode of pressure tester is connected the route after No. 1 core wire series connection by step 4, and cathode connects remaining No. 2 and No. 3 core wires
Series circuit and cable cover(ing), experimental data is recorded by pressure tester；
Step 5: repeating step 4, until the core wire route of different numbers is connect with the anode of pressure tester, and by resistance to
Pressure tester records experimental data, and test terminates.
By the detection method of above-mentioned cable it can be concluded that, when core be 3 when, it is only necessary to detecting 3 times can complete
To the resistance test of all cables, similarly, when core is N root, no matter cable is single or more, it is only necessary to detect n times just
The achievable resistance test to all cables.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (4)
1. a kind of method of mineral insulated cable proof voltage detection, it is characterised in that: include the following steps；
Step 1 peels off cable core；
Step 2 connects any one core wire using pressure tester anode, and cathode is separately connected remaining core wire and cable cover(ing),
Experimental data is recorded by pressure tester；
The anode of pressure tester is shifted to another core wire by step 3, and cathode connects remaining core wire and cable cover(ing), passes through
Pressure tester records experimental data；
Step 4 repeats step 3, until all core wires were connect with the anode of proof voltage tester, and passes through voltage-withstand test
Instrument records experimental data, and test terminates.
2. a kind of method of mineral insulated cable proof voltage detection, it is characterised in that: include the following steps；
Step 1 will at least two cables stack, and peel off cable core, and cable cover(ing) is made to contact with each other；
Step 2 numbers the core wire in every cable one by one, and makes in the core wire and remaining cable in any one cable
Core wire number corresponds；
Step 3 will number consistent core wire series connection using conducting wire as all the way between each cable；
Step 4, by the anode connection of pressure tester, wherein core wire, cathode connect remaining core wire and cable cover(ing), pass through all the way
Pressure tester records experimental data；
Step 5: repeating step 4, until the core wire of different numbers was connect with the anode of pressure tester, and passes through pressure resistance
Tester records experimental data, and test terminates.
3. a kind of method of mineral insulated cable proof voltage detection according to claim 1 or 2, it is characterised in that: described
Cable cover(ing) is metal material.
4. a kind of method of mineral insulated cable proof voltage detection according to claim 1 or 2, it is characterised in that: described
The voltage of pressure tester is that twice of cable rated operational voltage adds 1000V again, and the voltage detecting time is not less than 1min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955637.4A CN109239542A (en) | 2018-08-21 | 2018-08-21 | A kind of method of mineral insulated cable proof voltage detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955637.4A CN109239542A (en) | 2018-08-21 | 2018-08-21 | A kind of method of mineral insulated cable proof voltage detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109239542A true CN109239542A (en) | 2019-01-18 |
Family
ID=65070912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810955637.4A Pending CN109239542A (en) | 2018-08-21 | 2018-08-21 | A kind of method of mineral insulated cable proof voltage detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109239542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983522A (en) * | 2020-08-26 | 2020-11-24 | 广东韶钢松山股份有限公司 | Cable detection method |
| CN113376489A (en) * | 2021-06-22 | 2021-09-10 | 广州万宝电子材料有限公司 | Insulated wire voltage withstand test method and test tool thereof |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0265611A (en) * | 1988-08-30 | 1990-03-06 | Fujikura Ltd | Technique of molded joint of cable |
| JP2000338165A (en) * | 1999-05-28 | 2000-12-08 | Hitachi Electronics Service Co Ltd | Checker for cable continuity, and inspection of cable |
| CN2466669Y (en) * | 2001-02-19 | 2001-12-19 | 刘世春 | Multifunctional electric cable failure detector |
| CN1385707A (en) * | 2002-04-26 | 2002-12-18 | 德阳电缆股份有限公司 | New method for detecting voltage-resistance of communication cable |
| CN201425614Y (en) * | 2009-04-28 | 2010-03-17 | 陕西海泰电子有限责任公司 | Multicore-cable parameter tester |
| CN201514458U (en) * | 2009-08-25 | 2010-06-23 | 胜利油田胜利动力机械集团有限公司 | Automatic multi-core cable detection device |
| CN202585779U (en) * | 2012-05-04 | 2012-12-05 | 重庆泰山电缆有限公司 | Grounding clamp for multi-core cable withstand voltage test |
| CN203798970U (en) * | 2014-04-22 | 2014-08-27 | 国家电网公司 | DC voltage withstand test device for 10kV cable |
| CN104459480A (en) * | 2013-09-22 | 2015-03-25 | 珠海格力电器股份有限公司 | Voltage-withstand performance testing method and system for multi-core power line |
| CN205038295U (en) * | 2015-08-24 | 2016-02-17 | 杭州电缆股份有限公司 | Detection apparatus for improve withstand voltage detection efficiency of cable |
| CN111044855A (en) * | 2019-12-12 | 2020-04-21 | 北京无线电计量测试研究所 | Device and method for testing dielectric strength of radio frequency coaxial connector |
-
2018
- 2018-08-21 CN CN201810955637.4A patent/CN109239542A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0265611A (en) * | 1988-08-30 | 1990-03-06 | Fujikura Ltd | Technique of molded joint of cable |
| JP2000338165A (en) * | 1999-05-28 | 2000-12-08 | Hitachi Electronics Service Co Ltd | Checker for cable continuity, and inspection of cable |
| CN2466669Y (en) * | 2001-02-19 | 2001-12-19 | 刘世春 | Multifunctional electric cable failure detector |
| CN1385707A (en) * | 2002-04-26 | 2002-12-18 | 德阳电缆股份有限公司 | New method for detecting voltage-resistance of communication cable |
| CN201425614Y (en) * | 2009-04-28 | 2010-03-17 | 陕西海泰电子有限责任公司 | Multicore-cable parameter tester |
| CN201514458U (en) * | 2009-08-25 | 2010-06-23 | 胜利油田胜利动力机械集团有限公司 | Automatic multi-core cable detection device |
| CN202585779U (en) * | 2012-05-04 | 2012-12-05 | 重庆泰山电缆有限公司 | Grounding clamp for multi-core cable withstand voltage test |
| CN104459480A (en) * | 2013-09-22 | 2015-03-25 | 珠海格力电器股份有限公司 | Voltage-withstand performance testing method and system for multi-core power line |
| CN203798970U (en) * | 2014-04-22 | 2014-08-27 | 国家电网公司 | DC voltage withstand test device for 10kV cable |
| CN205038295U (en) * | 2015-08-24 | 2016-02-17 | 杭州电缆股份有限公司 | Detection apparatus for improve withstand voltage detection efficiency of cable |
| CN111044855A (en) * | 2019-12-12 | 2020-04-21 | 北京无线电计量测试研究所 | Device and method for testing dielectric strength of radio frequency coaxial connector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983522A (en) * | 2020-08-26 | 2020-11-24 | 广东韶钢松山股份有限公司 | Cable detection method |
| CN111983522B (en) * | 2020-08-26 | 2023-01-06 | 广东韶钢松山股份有限公司 | Cable detection method |
| CN113376489A (en) * | 2021-06-22 | 2021-09-10 | 广州万宝电子材料有限公司 | Insulated wire voltage withstand test method and test tool thereof |
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Application publication date: 20190118 |