CN102590721A - Preventive test method for insulated shielding tool in live working - Google Patents
Preventive test method for insulated shielding tool in live working Download PDFInfo
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- CN102590721A CN102590721A CN2012100844114A CN201210084411A CN102590721A CN 102590721 A CN102590721 A CN 102590721A CN 2012100844114 A CN2012100844114 A CN 2012100844114A CN 201210084411 A CN201210084411 A CN 201210084411A CN 102590721 A CN102590721 A CN 102590721A
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Abstract
The invention discloses a preventive test method for an insulated shielding tool in live working. Soft conductive male and female dies are made according to the shapes of the inner surface and the outer surface of the insulated shielding tool, the male die is arranged in the inner cavity of the insulated shielding tool, the insulated shielding tool together with the male die is arranged in the inner cavity of the female die, and the female die together with the insulated shielding tool and the male die are placed on a test stand for wire connection test according to DL/T976-2005 Preventive Test Regulations on Tool, Device and Equipment in Live Working. The male die and the female die are made by wrapping hard sponge with conductive fabrics. By making the soft conductive male die and female die matched with the inner surface and the outer surface of the insulated shielding tool, the electrode conductive fabrics are satisfactorily contacted with the insulated surface of the insulated shielding tool to avoid air gap, thereby effectively overcoming the defects of the three conventional preventive test methods, greatly improving the effectiveness and accuracy of the preventive test, accelerating the preventive test speed, and being suitable for batch tool detection.
Description
Technical field
The present invention relates to a kind of preventive trial method, relate in particular to a kind of charged with the insulation cover Work tool preventive trial method, belong to the power industry technical field.
Background technology
In recent years; Power supply enterprise continues to increase the dynamics of carrying out to 10kV distribution hot line job work in order to improve power supply reliability, makes great efforts to expand 10kV distribution hot line job project; Enlarge scope of work; Guaranteeing to increase the hot line job number of times to greatest extent on the safe basis, progressively realize not interruption maintenance of distribution.The operating type that the hot line job of present domestic 10kV distribution is adopted mainly is on the bar between insulating tool indirect operating method, insulated platform, direct operation method, aerial lift device with insulated arm direct operation method; Therefore for guaranteeing operating personnel's safety; No matter be indirectly or direct operation; Whether the safety appliance in the use detects effectively qualified, and its quality is directly connected to operating personnel's safety.Existing at home corresponding industry standard " live line tool, device and equipment preventive trial rules "; Insulating protection apparatus detection method, standard have been carried out clearly regulation; But differ owing to cover the safety appliance shape; In the preventive trial insulation detects; Selecting for use in " live line tool, device and equipment preventive trial rules " of test electrode shape and material clearly do not set forth, and gives testing crew when the insulation shading tool is insulated detection, and whether the insulation Work tool detects and effectively bring query property.The shading tool test method that now shape is differed has three kinds: 1; Adopt masking foil to paste as test electrode; Testing crew complicated operation in taping process is lost time and possibly there is air gap in stickup face; Edge flashing takes place in most advanced and sophisticated being prone to of masking foil along the edge, can not effectively guarantee the validity that detects.2, the method for adopt pasting conducting resinl is rubbed glue to open during use and is attached on the insulation Work tool surface, re-uses hair dryer and urges driedly, and this sample loading mode effectively but inconvenient must clean out glue after the detection, and the test period is long, influences hot line job personnel need of work.3, adopt conductive fabric, the conductive fabric better mechanical property, efficient is higher, but between conductive fabric and test product, exists more air gap to be prone to take place shelf depreciation.These three kinds of methods all exist complicated operation to lose time, the cleaning of must dealing with problems arising from an accident after the detection, and be prone to the generation edge flashing or shelf depreciation takes place, be difficult to effectively guarantee the validity of detection like half-hearted operation.
Summary of the invention
In order to address the above problem; The object of the present invention is to provide and a kind ofly chargedly cover Work tool preventive trial method with insulation; Meeting insulation through making covers formpiston, the former of soft conduction of the inside and outside surface configuration of Work tool and Work tool is covered in insulation carries out preventive trial; Can effectively solve the deficiency of order first three preventive trial method, improve validity, the accuracy of preventive trial greatly, improve preventive trial speed and be fit to Work tool in enormous quantities and detect.
The technical solution adopted for the present invention to solve the technical problems is: chargedly cover Work tool preventive trial method with insulation; Be to cover Work tool 1 inside and outside surface configuration by insulation to make formpiston 2, the former 3 of the conduction of software; Formpiston 2 is positioned over the inner chamber that Work tool 1 is covered in insulation; Work tool 1 is positioned over former 3 together with formpiston 2 inner chamber is covered in insulation; Former 3 is covered Work tool 1 together with edge and formpiston 2 is placed on the testing table 4, carry out the line test by DL/T976-2005 " live line tool, device and equipment preventive trial rules ".Described formpiston 2, former 3 are to make with conductive fabric 5 parcel hardware sponges 6.The external surface shape size of described formpiston 2 is covered Work tool 1 surface of internal cavity geomery greater than insulation, and formpiston 2 is put into and can closely be contacted after Work tool 1 inner chamber is covered in insulation.The inner surface configuration size of former 3 is covered Work tool 1 external surface shape size less than insulation, and insulation is covered and can closely be contacted after Work tool 1 is put formpiston 2 inner chambers into.
The invention has the beneficial effects as follows: adopt and fill formpiston, the former that the hardware sponge is made the conduction of the software that meeting insulate covers the inside and outside surface configuration of Work tool in the conductive fabric; Insulation is covered Work tool inside surface and formpiston outside surface and insulation and is covered dependence sponge self bulging force expansion extruding eliminating gap between Work tool outside surface and the former inside surface; Making electrodes conduct cloth and insulation cover the Work tool insulating surface contacts well; To eliminate existing of air gap, improved the reliability of test and effectively avoided taking place edge flashing and shelf depreciation.The on-the-spot dismounting test of testing crew is simple and convenient, and is fit to Work tool detection in enormous quantities.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is that the structural representation of Work tool preventive trial method is covered in the charged usefulness insulation of the present invention.
Fig. 2 is the structural representation that Work tool is covered in the insulation of Fig. 1.
Fig. 3 is the structural representation of the formpiston of Fig. 1.
Fig. 4 is the structural representation of the former of Fig. 1.
Label among the figure
1, Work tool 2, formpiston 3, former 4, testing table 5, conductive fabric 6, hardware sponge are covered in insulation.
Embodiment
See also Fig. 1 to Fig. 4; Chargedly covering Work tool preventive trial method with insulation, is example with insulator mask preventive trial, press formpiston 2, the former 3 of the conduction of the inside and outside surface configuration of insulator mask making software; Formpiston 2 is positioned over the inner chamber that Work tool 1 is covered in insulation; The insulator mask is positioned over the inner chamber of former 3 together with formpiston 2, former 3 is placed on the testing table 4 together with insulator mask and formpiston 2, carry out the line test by " preventive trial rules ".Described formpiston 2, former 3 are to make with conductive fabric 5 parcel hardware sponges 6.The external surface shape size of described formpiston 2 is greater than insulator mask surface of internal cavity geomery, and formpiston 2 can closely contact after putting rod insulator mask inner chamber into.The inner surface configuration size of former 3 is less than insulator mask external surface shape size, and the insulator mask can closely contact after putting formpiston 2 inner chambers into.
This method preventive trial conclusion: require to carry out AC voltage withstand test according to the standard DL/T976-2005 of State Grid " live line tool, device and equipment preventive trial rules ".(table)
| Rank | Rated voltage (V) | Exchange withstand voltage (effective value) V |
| 0 | 380 | 5000 |
| 1 | 3000 | 10000 |
| 2 | 6000、10000 | 20000 |
| 3 | 20000 | 30000 |
| 4 | 30000 | 50000 |
Test should be carried out under environment temperature (23 ± 2) ℃.Trial voltage should be from beginning rising than low value; And boost gradually with the speed of 1000V/s; Until the interchange withstand voltage value that reaches mask regulation, test period is 1min, and test period began to calculate from the moment of the trial voltage that reaches regulation; Puncture, do not have obviously heating with the generation of test product corona free, no flashover, nothing, then test is qualified.Through respectively 10 lead masks, insulator mask, drop type switch mask promptly being carried out Insulation Test with four kinds of methods contrasts with original three kinds of methods and this method respectively; Come to the same thing; Conclusion is can make an experiment to the insulation mask accurately with this method, guarantee to insulate and cover Work tool security in use, and the test electrode of selecting for use is simple and reliable; Test method is reasonable, is adapted at prefecture-level power administration and promotes.
Claims (3)
1. one kind chargedly covers Work tool preventive trial method with insulation; It is characterized in that: be to cover the inside and outside surface configuration of Work tool (1) by insulation to make formpiston (2), the former (3) of the conduction of software; Formpiston (2) is positioned over insulation covers the inner chamber of Work tool (1); The inner chamber that the same formpiston of Work tool (1) (2) is positioned over former (3) is covered in insulation; Former (3) is covered Work tool (1) together with edge and formpiston (2) is placed on the testing table (4), carry out the line test by DL/T976-2005 " live line tool, device and equipment preventive trial rules ".
2. according to claim 1ly chargedly cover Work tool preventive trial method with insulation, it is characterized in that: described formpiston (2), former (3) are with conductive fabric (5) parcel hardware sponge (6) making.
3. according to claim 1ly chargedly cover Work tool preventive trial method with insulation; It is characterized in that: the external surface shape size of described formpiston (2) is covered Work tool (1) surface of internal cavity geomery greater than insulation, and formpiston (2) is put into and can closely be contacted after Work tool (1) inner chamber is covered in insulation; The inner surface configuration size of former (3) is covered Work tool (1) external surface shape size less than insulation, and insulation is covered and can closely be contacted after Work tool (1) is put formpiston (2) inner chamber into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100844114A CN102590721A (en) | 2012-03-28 | 2012-03-28 | Preventive test method for insulated shielding tool in live working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100844114A CN102590721A (en) | 2012-03-28 | 2012-03-28 | Preventive test method for insulated shielding tool in live working |
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| Publication Number | Publication Date |
|---|---|
| CN102590721A true CN102590721A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100844114A Pending CN102590721A (en) | 2012-03-28 | 2012-03-28 | Preventive test method for insulated shielding tool in live working |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383400A (en) * | 2013-07-09 | 2013-11-06 | 国家电网公司 | Insulation safety device preventability test device |
| CN104614650A (en) * | 2015-02-02 | 2015-05-13 | 国网甘肃省电力公司白银供电公司 | Inspection device for insulation tools and instruments in hot-line work |
| CN105067968A (en) * | 2015-07-22 | 2015-11-18 | 无锡市计量检定测试中心 | Electrical performance testing platform for insulating pad used for live-line operation |
| CN107703429A (en) * | 2017-11-15 | 2018-02-16 | 国网山东省电力公司电力科学研究院 | A kind of planar electrode structure suitable for vacuum edge flashing |
| CN108169641A (en) * | 2018-01-08 | 2018-06-15 | 国家电网公司 | A kind of insulated shielding cover experimental rig |
| CN111103506A (en) * | 2018-10-25 | 2020-05-05 | 浙江荣泰电工器材有限公司 | Method for detecting insulating strength and breakdown voltage of special-shaped plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201589845U (en) * | 2009-12-10 | 2010-09-22 | 贵州电力试验研究院 | Electrode plate for testing insulation properties of insulated sleeves |
| CN201732140U (en) * | 2010-08-23 | 2011-02-02 | 河南电力试验研究院 | Test electrode for layer power-frequency withstand-voltage test of insulating clothing |
-
2012
- 2012-03-28 CN CN2012100844114A patent/CN102590721A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201589845U (en) * | 2009-12-10 | 2010-09-22 | 贵州电力试验研究院 | Electrode plate for testing insulation properties of insulated sleeves |
| CN201732140U (en) * | 2010-08-23 | 2011-02-02 | 河南电力试验研究院 | Test electrode for layer power-frequency withstand-voltage test of insulating clothing |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383400A (en) * | 2013-07-09 | 2013-11-06 | 国家电网公司 | Insulation safety device preventability test device |
| CN103383400B (en) * | 2013-07-09 | 2016-06-01 | 国家电网公司 | A kind of insulation safety device preventability test device |
| CN104614650A (en) * | 2015-02-02 | 2015-05-13 | 国网甘肃省电力公司白银供电公司 | Inspection device for insulation tools and instruments in hot-line work |
| CN104614650B (en) * | 2015-02-02 | 2017-07-18 | 国网甘肃省电力公司白银供电公司 | A kind of verifying attachment of live line work insulating Work tool |
| CN105067968A (en) * | 2015-07-22 | 2015-11-18 | 无锡市计量检定测试中心 | Electrical performance testing platform for insulating pad used for live-line operation |
| CN105067968B (en) * | 2015-07-22 | 2018-01-09 | 无锡市计量测试院 | A kind of livewire work felt pad electrical performance test platform |
| CN107703429A (en) * | 2017-11-15 | 2018-02-16 | 国网山东省电力公司电力科学研究院 | A kind of planar electrode structure suitable for vacuum edge flashing |
| CN107703429B (en) * | 2017-11-15 | 2020-02-11 | 国网山东省电力公司电力科学研究院 | Planar electrode structure suitable for vacuum surface flashover |
| CN108169641A (en) * | 2018-01-08 | 2018-06-15 | 国家电网公司 | A kind of insulated shielding cover experimental rig |
| CN108169641B (en) * | 2018-01-08 | 2020-05-05 | 国家电网公司 | Insulating cover test device that shields |
| CN111103506A (en) * | 2018-10-25 | 2020-05-05 | 浙江荣泰电工器材有限公司 | Method for detecting insulating strength and breakdown voltage of special-shaped plate |
| CN111103506B (en) * | 2018-10-25 | 2021-06-22 | 浙江荣泰电工器材有限公司 | Method for detecting breakdown voltage of special-shaped plate |
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| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121130 |
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Effective date of registration: 20121130 Address after: 161005 Qigihar city of Heilongjiang Province, Longsha District South Road No. 288 Applicant after: Qiqihaer Electric Power Bureau Applicant after: State Grid Corporation of China Address before: 161005 Qigihar city of Heilongjiang Province, Longsha District South Road No. 288 Applicant before: Qiqihaer Electric Power Bureau |
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Application publication date: 20120718 |