CN101382578B - Detection device for quality of rubber stress cone with different cable sectional - Google Patents
Detection device for quality of rubber stress cone with different cable sectional Download PDFInfo
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- CN101382578B CN101382578B CN2008100438824A CN200810043882A CN101382578B CN 101382578 B CN101382578 B CN 101382578B CN 2008100438824 A CN2008100438824 A CN 2008100438824A CN 200810043882 A CN200810043882 A CN 200810043882A CN 101382578 B CN101382578 B CN 101382578B
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- stress cone
- rubber stress
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Abstract
The invention discloses a quality detection device of a rubber stress cone with different cable sections, which comprises a testware, a testware live end and a testware measuring end, and is characterized in that: the testware comprises a test cable 11 and a test rubber stress cone 5, wherein, the test cable is sheathed with the test rubber stress cone in a series way, the testware measuring end comprises a fast connector 17 and a test terminal 18 which form tow sealed type cylindrical shells that are connected by a sealing socket, the test cable with the length of 1/2 is held in the sealed type housing cylindrical shell of the test terminal, while the test cable with remain length of 1/2 is held in the sealed type cylindrical shell of the fast connector. A quick switching connector provided by the invention is applicable to 300-2500 mm <2>, even any cable section within a wider cable section range, thus solving the problem of the test method of the rubber stress cone used by cables with different sections.
Description
Technical field
The present invention relates to high-pressure cross-linking cable delivery test device, particularly disclose a kind of detection device for quality of rubber stress cone with different cable sectional, be applied to 110kV and above different cross section high-pressure cross-linking cable Primary Component rubber stress cone are detected test.
Background technology
The puncture of insulating material is often begun by the discharge at local defect place, and organic material is easy to deterioration under long-term shelf depreciation effect.Therefore the shelf depreciation measurement in the insulating material is become one of important method of insulation inherent vice check.At present adopt import equipment to carry out the test of shelf depreciation mostly at cable industry, be mainly used in shelf depreciation, the voltage-withstand test of high-tension cable, the application of this testing apparatus is very ripe.The key components that is used for HV cable accessories all will carry out delivery test according to standard-required, at 1.5U
0(phase voltage) measures shelf depreciation down, and will carry out 2.5U
00.5 hour withstand voltage test.Be extensive use of both at home and abroad to apply and carry out shelf depreciation test and withstand voltage test under the regulation high voltage.Usually under the test condition, the water terminal that cable industry is commonly used just can satisfy test request, as shown in Figure 1, one end is loaded onto deionized water terminal or outdoor terminal, some do not possessed the testing laboratory of water treatment system, then can adopt the outdoor terminal of standard, can reach the electrical property of test request equally.The other end puts prefabricated rubber stress cone on the smooth cable insulation surface of handling well, loads onto the stress metal cylindrical shell, and cylindrical shell is vacuumized the back and injects dry N
2Gas or SF
6Gas, end applies assigned voltage and tests out of doors.But the different cross-sections of cable are arranged under same voltage, and for example 110kV crosslinked cable sectional area commonly used has 300,400,500,630,800,1000,1200,1600,2000,2500mm
2To test by accompanying drawing 1 method the employed prefabricated rubber stress cone of the cable in each cross section, need to use the cable and the corresponding test terminal in each cross section, add the cable of different electric pressures, quantity can increase many, a lot of cables are not only wasted in this combination, and to deposit these spare parts in the high-potting hall also be great difficulty.
Summary of the invention
The objective of the invention is to disclose a kind of rubber stress cone with different cable sectional passer, can reduce the cable use amount in order to solve the defective that prior art is difficult to the multiple cross section used rubber stress cone of cable is carried out short-time test.
The present invention is achieved in that a kind of detection device for quality of rubber stress cone with different cable sectional, comprise test block, the test block live end, the test block measuring junction, it is characterized in that: described test block comprises test cable 11 and testing rubber stress cone 5, string cover testing rubber stress cone on the test cable, described test block measuring junction is made up of fast connector 17 and test terminals 18, both constitute the closed type cylindrical shell fast connector 17 and test terminals 18, connect by sealing socket between the described two closed type cylindrical shells, hold the 1/2 long test cable 11 and the testing rubber stress cone 5 that is enclosed within on the test cable of going here and there in the described test terminals closed type casing cylinder and occupy the cylindrical shell center, outside test cable 11 and testing rubber stress cone 5, be provided with epoxy bushing 7, will vacuumize between epoxy bushing 7 and the test block and fill with 0.2～0.6MPa pressure N by cavity vacuum orifice 9
2Gas or SF
6Gas, the space of epoxy bushing 7 and casing cylinder vacuumizes and fills with 0.2～0.6MPa pressure N by being located at shell vacuum orifice 6 on the casing cylinder
2Gas or SF
6Gas; The residue 1/2 long and testing rubber stress cone that holds test cable in the described fast connector closed type cylindrical shell, structure is identical with test terminals cylindrical shell, the remainder of fast connector closed type cylindrical shell holds an end of basic cable 16, basic cable in fast connector sealed cylinder part is connected with test cable, basic cable also puts rubber stress cone 14, also there are epoxy bushing 7 and vacuum orifice 9 in its outside, the remainder of basic cable 16 exposes outside fast connector as the test block live end.Described basic cable 16 adopts bonding conductor 13 to be connected with test cable 11, is provided with conductor 4 and shielding cap 3 in test cable 11 terminations of test terminals sealed cylinder.Described test terminals, fast connector and basic cable live end all bearing on contour removable, the convenient rack wheel car 2 that detects.
The invention has the beneficial effects as follows: the present invention has designed the quick X-over of a kind of different cross section, the connector of the cable of the cable of fundamental test and required different cross section being formed a Fast Installation, rubber stress cone dispatch from the factory shelf depreciation and withstand voltage test are installed on this cable, and this section cable only needs 3m.Quick X-over provided by the invention is applicable to 300～2500mm
2, even any one cross-section of cable in the wideer cross-section of cable scope, solved the test method problem of the used rubber stress cone of different cross section cable.
Description of drawings
Fig. 1 is a prior art detection device for quality of rubber stress cone with different cable sectional structural drawing;
Fig. 2 is a detection device for quality of rubber stress cone with different cable sectional structural drawing of the present invention.
Embodiment
With reference to the accompanying drawings 2, a kind of detection device for quality of rubber stress cone with different cable sectional comprises test block, test block live end, test block measuring junction.Test block comprises test cable 11 and testing rubber stress cone 5, string cover testing rubber stress cone on the test cable, the test block measuring junction is made up of fast connector 17 and test terminals 18, both constitute the closed type cylindrical shell fast connector 17 and test terminals 18, connect by sealing socket 10 between the two closed type cylindrical shells, and be respectively equipped with snap ring 8.
Sectional area between the basic cable 16 of original test and the used cable 11 of rubber stress cone of required test is inconsistent.Hold 1/2 long test cable 11 and string in the test terminals closed type casing cylinder 1 and be enclosed within testing rubber stress cone 5 on the test cable, occupy the cylindrical shell center, outside test cable 11 and testing rubber stress cone 5, be provided with epoxy bushing 7, with attached cable, and isolated inside and outside gas.Basic cable 16 links to each other with bonding conductor 13 at head with test cable 11, and the outside is overlapped with metal shell, forms a connector of assembling fast.The space of epoxy bushing 7 and casing cylinder 1 vacuumizes and fills with 0.2～0.6MPa pressure N by being located at shell vacuum orifice 6 on the casing cylinder
2Gas or SF
6Gas.Hold the residue 1/2 long and testing rubber stress cone of test cable in the fast connector closed type cylindrical shell, structure is identical with test terminals cylindrical shell, is being provided with sealed base 15 with basic cable link.The remainder of fast connector closed type cylindrical shell 12 holds an end of basic cable 16, basic cable in fast connector sealed cylinder part is connected with test cable, basic cable also puts rubber stress cone 14, also there are epoxy bushing 7 and vacuum orifice 9 in its outside, will be vacuumized between epoxy bushing 7 and the test block and fill with 0.2～0.6MPa pressure N by cavity vacuum orifice 9
2Gas or SF
6Gas.No longer handle after maintaining the original state after this two section processes finishes, only when air pressure is lower than setting, can mend and be inflated to institute's determined value.
The remainder of basic cable 16 exposes outside fast connector as the test block live end.Basic cable 16 adopts bonding conductor 13 to be connected with test cable 11.Test cable 11 terminations at test terminals sealed cylinder are provided with conductor 4 and shielding cap 3.Test terminals, fast connector and basic cable live end all bearing on contour removable, the convenient rack wheel car 2 that detects.
Test cable 11 inner chambers and test terminals 18 are with long-pending different replacing of the cross-section of cable.11 need of replacing test cable are dismantled bolt the assembly on the sealing socket 10 and the right side thereof are removed, and transfer to test cable 11, remove sealing band and testing rubber stress cone 5, change required testing section cable and get final product.
Can be undertaken by follow procedure 5 installation tests of testing rubber stress cone: go up wrapped band at test lead cable (about 3m), put positioning pipe and sealing socket 10, put rubber stress cone at the connection head end, crimping outlet bar on test cable 11 cores injects fast connector 17, puts testing rubber stress cone 5 equally at test terminals 18 positions, the right side, lead place crimping outlet bar, epoxy bushing 7 and high-tension shielding cap 3 are installed, after the inspection size, are put casing cylinder 1 at last.After vacuumizing, 6 pairs of terminal enclosure of shell vacuum orifice fill with 0.2～0.6MPa pressure N
2Gas or SF
6Gas.After vacuumizing from 9 pairs of basic cables of cavity vacuum orifice and epoxy bushing inner chamber, fill with pressure N
2Gas can carry out shelf depreciation test and withstand voltage test.After the off-test, the removal bolt is removed sealing socket 10 terminal enclosure and epoxy bushing to the right side, changes testing rubber stress cone 5, and shift-in sealing socket, terminal enclosure and epoxy bushing tight a bolt, and vacuumizes and fills with pressure N
2Gas can be engaged in the verification test of second testing rubber stress cone.If will accelerate test, can transfer to test cable, change two two rubber stress cones of cable simultaneously and carry out two parts and test simultaneously.Because intracavity space is little, only vacuumizing and inflate needed just can finish in 15～20 minutes, when needs are tested the prefabricated rubber stress cone of cable termination in another kind of specification cross section, only need to change test cable 11, the outside of the epoxy bushing of the fast connector left side, exocoel and terminals does not all need dismounting and changes, and helps different cross section cable short-time test.Test terminals 18, fast connector 17 and basic cable live end all bearing on contour removable, the convenient rack wheel car 2 that detects.
Device of the present invention can use under the intact situation of cable for a long time, can adopt the mode of sealed storage to the storage of the test cable of different size, avoids cable to make moist.The installation of counter stress awl is also very convenient, and the time of test can shorten greatly, reaches the effect of fast detecting, compares with the stress cone test of single specification, and work efficiency improves 1 times.This proving installation is not influenced by external factor, can guarantee the accuracy and the reliability of testing.
Claims (4)
1. detection device for quality of rubber stress cone with different cable sectional, comprise test block, the test block live end, the test block measuring junction, it is characterized in that: described test block comprises the test cable (11) and the first testing rubber stress cone, the second testing rubber stress cone, the string cover first testing rubber stress cone and the second testing rubber stress cone on the test cable, described test block measuring junction is made up of fast connector (17) and test terminals (18), fast connector (17) constitutes the closed type cylindrical shell respectively with test terminals (18), connect by sealing socket between the two closed type cylindrical shells, hold 1/2 long test cable (11) and string in the closed type cylindrical shell of described test terminals and be enclosed within the closed type cylindrical shell center that the first testing rubber stress cone on the test cable occupies the test terminals, outside the test cable (11) and the first testing rubber stress cone, be provided with first epoxy bushing, by first vacuum orifice with first epoxy bushing, vacuumize between second epoxy bushing and the test block and fill with pressure SF
6Gas or N
2Gas, the space of the shell of the closed type cylindrical shell of first epoxy bushing and test terminals is vacuumized by the first shell vacuum orifice on the shell that is located at sealing type tube body and fills with pressure SF
6Gas or N
2Gas; The residue 1/2 long and second testing rubber stress cone that holds test cable in the closed type cylindrical shell of described fast connector, the closed type tube structure of fast connector is identical with the closed type cylindrical shell of test terminals, has the second shell vacuum orifice, the second testing rubber stress cone and second epoxy bushing, the remainder of the closed type cylindrical shell of fast connector holds an end of basic cable (16), basic cable at the closed type shell portion of fast connector is connected with test cable, basic cable (16) also puts rubber stress cone (14), its outside is provided with the 3rd epoxy bushing and second vacuum orifice (9), the remainder of basic cable (16) exposes outside fast connector as the test block live end.
2. detection device for quality of rubber stress cone with different cable sectional according to claim 1 is characterized in that: fill with 0.2～0.6MPa pressure N after the space vacuumizes between described test cable and the first testing rubber stress cone and first epoxy bushing
2Gas or SF
6Gas; Between the shell and first epoxy bushing of the closed type cylindrical shell of described test terminals, between the shell of the closed type cylindrical shell of fast connector and second epoxy bushing and basic cable and being located at fill 0.2～0.6MPa pressure N after vacuumizing respectively between the 3rd epoxy bushing of this section
2Gas or SF
6Gas.
3. detection device for quality of rubber stress cone with different cable sectional according to claim 1, it is characterized in that: described basic cable (16) adopts bonding conductor (13) to be connected with test cable (11), and test cable (11) termination in the closed type cylindrical shell of test terminals is provided with conductor (4) and shielding cap (3).
4. detection device for quality of rubber stress cone with different cable sectional according to claim 1 is characterized in that: described test terminals, fast connector and basic cable live end all bearing on contour and rack wheel car (2) that moveable convenient detects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100438824A CN101382578B (en) | 2008-10-28 | 2008-10-28 | Detection device for quality of rubber stress cone with different cable sectional |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100438824A CN101382578B (en) | 2008-10-28 | 2008-10-28 | Detection device for quality of rubber stress cone with different cable sectional |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101382578A CN101382578A (en) | 2009-03-11 |
| CN101382578B true CN101382578B (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100438824A Active CN101382578B (en) | 2008-10-28 | 2008-10-28 | Detection device for quality of rubber stress cone with different cable sectional |
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| CN (1) | CN101382578B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995538B (en) * | 2010-10-14 | 2012-09-05 | 中国科学院等离子体物理研究所 | Test specimen for direct-current voltage-resistance performance test of fixed insulation materials under Paschen condition |
| CN103454541B (en) * | 2013-09-18 | 2016-01-20 | 上海三原电缆附件有限公司 | Direct current cables test terminal |
| CN105116310A (en) * | 2015-08-27 | 2015-12-02 | 江苏普朗克电力科技有限公司 | Novel high voltage cable test device |
| CN105259440A (en) * | 2015-10-21 | 2016-01-20 | 中国电力科学研究院 | DC cable test terminal |
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| CN101382578A (en) | 2009-03-11 |
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