CN219162288U - Insulation encapsulation rubber mat or blanket withstand voltage test device - Google Patents
Insulation encapsulation rubber mat or blanket withstand voltage test device Download PDFInfo
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- CN219162288U CN219162288U CN202223437163.5U CN202223437163U CN219162288U CN 219162288 U CN219162288 U CN 219162288U CN 202223437163 U CN202223437163 U CN 202223437163U CN 219162288 U CN219162288 U CN 219162288U
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Abstract
The utility model relates to an insulating rubber mat for a power system, in particular to an insulating encapsulation rubber mat or a rubber blanket withstand voltage test device; the alternating-current voltage withstand test platform comprises an insulating panel, wherein supporting legs are arranged at the bottom of the insulating panel, a lower metal electrode, an organic glass plate, an insulating pad/blanket to be tested and an upper metal electrode are sequentially paved on the insulating panel from bottom to top, and a high-voltage electrode lead bar is arranged on the upper metal electrode; square holes are formed in the middle of the organic glass plate, and wet sponge is placed in the square holes of the organic glass plate; the high-voltage electrode lead bar comprises a conductive metal bar, an epoxy resin tray is sleeved at the bottom end of the conductive metal bar, and a turnbuckle is arranged at the top end of the conductive metal bar; the insulating encapsulation rubber mat or rubber blanket withstand voltage test device is time-saving and labor-saving, improves the working efficiency, and can be used for insulating electrical tests of insulating rubber mats in various shapes such as plates, mats and the like.
Description
Technical Field
The utility model relates to an insulating rubber mat for a power system, in particular to an insulating encapsulation rubber mat or a rubber blanket withstand voltage test device.
Background
The insulating rubber pad has wide application in a power system, is mainly used for insulating and isolating electrical equipment, such as insulating encapsulation of an exposed conductor, shielding of equipment in a narrow space, and can also be used for paving the ground of a power distribution room.
The insulating rubber pad is not only an auxiliary safety tool, but also a last barrier for protecting life safety of power constructors, and the quality level of the insulating rubber pad directly influences the operation of a power system and a person. Poor insulating rubber pads can seriously affect life safety of electric power constructors and damage to electric equipment.
According to DL/T976-2017, live working tool, device and equipment preventive test procedure, an alternating current withstand voltage test is required to be carried out on the insulating pad, and the test period is 6 months.
AC withstand voltage value (unit V) of insulating mat
| Level of | Rated voltage | AC withstand voltage (effective value) |
| 0 | 400 | 5000 |
| 1 | 3000 | 10000 |
| 2 | 6000、10000 | 20000 |
| 3 | 20000 | 30000 |
| 4 | 35000 | 40000 |
The test method and requirements are as follows:
the upper and lower surfaces of the insulating rubber pad have no harmful irregularities. Detrimental irregularities are defects that disrupt uniformity, damage smooth contours of the surface, such as pinholes, cracks, localized ridges, cuts, inclusions of conductive foreign matter, folds, voids, asperities, cast marks, and the like.
In the test, wet cloth and metal electrodes are paved on the upper part and the lower part of an insulating rubber mat, the periphery of the insulating rubber mat is smaller than that of the insulating rubber mat to be tested by 200mm, the voltage is continuously and uniformly boosted to a specified voltage value (the thickness is not less than 8mm when the voltage is 10KV, the industrial frequency withstand voltage test 20000V is selected, the thickness is not less than 10-12mm when the voltage is 35KV, the industrial frequency withstand voltage test 40000V is selected, the thickness is not less than 5mm when the voltage is 0.4KV low, the industrial frequency withstand voltage test 5000V is selected), the breakdown phenomenon is observed for 1min, and if the breakdown is not generated, the test passes. If the test sample is tested in a segmented mode, the two test edges are coincident.
Insulation electrical tests are the most effective means of verifying the quality of insulating rubber mats. Whether the electric equipment can pass through the insulated electric test is a key checking means for ensuring that the electric equipment can reliably operate. However, because of different specifications and large differences in shapes, great difficulty is brought to the test of the insulated electrical equipment, the existing insulating rubber pad test device is mostly installed manually, a complete and scientific test method is lacked, a great amount of time is consumed in replacing and disconnecting test leads, and particularly when the number of the insulating rubber pads is large, the manual waste and a great amount of time waste are caused by moving, wiring, disconnecting, pad electrode plates and plate replacement.
Therefore, it is necessary to manufacture a multipurpose insulating rubber pad type test instrument which is time-saving and labor-saving and can be used for various shapes of plates, mats, carpets and the like.
Disclosure of Invention
The utility model provides an insulating encapsulation rubber pad or rubber blanket withstand voltage test device, which is time-saving and labor-saving, and can be used for various boards, pads and other shapes.
In order to solve the technical problems, the utility model adopts the following technical scheme: the insulation packaging rubber mat or blanket pressure-resistant test device comprises an alternating-current pressure-resistant test platform, wherein the alternating-current pressure-resistant test platform comprises an insulation panel, the bottom of the insulation panel is provided with supporting legs, a lower metal electrode, an organic glass plate, an insulation pad/blanket to be tested and an upper metal electrode are sequentially paved on the insulation panel from bottom to top, and a high-voltage electrode lead bar is arranged on the upper metal electrode; square holes are formed in the middle of the organic glass plate, the sizes of the square holes are consistent with those of the lower metal electrode and the upper metal electrode, and wet sponge is placed in the square holes; the high-voltage electrode lead bar comprises a conductive metal bar, an epoxy resin tray is sleeved at the bottom end of the conductive metal bar, and a turnbuckle for connecting a high-voltage test lead is arranged at the top end of the conductive metal bar.
The working process comprises the following steps: the sponge is wetted with dilute brine (tap water), but not too wet to overflow. After wetting, the insulating pad/blanket to be tested will need to be cleaned of surface dirt with a rag to avoid affecting the test results. The insulation panel of the alternating current withstand voltage test platform is sequentially provided with a lower metal electrode, an organic glass plate, an insulation pad/blanket to be tested and an upper metal electrode, wet cloth is paved between the upper metal electrode and the insulation pad/blanket to be tested, the side length of the upper metal electrode and the side length of the lower metal electrode are about 200mm shorter than the side length of the insulation pad/blanket to be tested, and the upper metal electrode and the lower metal electrode are covered on all other areas of the insulation pad except for surface discharge (as shown in the figure); the organic glass plate is used as an auxiliary electrode (the middle is hollowed to place wet sponge. Transparent organic glass is helpful for workers to align the distance and the position of the upper metal electrode and the lower metal electrode), the lower metal electrode of the test platform is grounded, and the upper metal electrode is connected with the output end of the step-up transformer. Under the condition of confirming the safety of the test environment, continuous and uniform boosting to a specified voltage value is carried out according to the test procedure. No flashover or breakdown of the sample should occur in the test. The test is qualified without corona, flashover, breakdown, burn and obvious heating. Otherwise, the test result is unqualified.
Compared with the prior art, the utility model has the following beneficial effects:
at present, no complete and scientific test device exists, and most of the test devices are arranged on a table, two electrode plates are placed to clamp an insulating pad, so that the problems of creeping discharge and insufficient creepage distance of the electrodes are easily caused. The tested insulating pad is damaged and even personal injury is caused when the test is serious.
According to the requirements of DL/T976-2017 'live working tool, device and equipment preventive test procedure', the device of the utility model is developed, and all indexes of the device accord with the national standard. The insulation and withstand voltage test can be carried out on the insulation pad and the insulation partition according to the requirements of the electric power safety tool preventive test procedure, and the method is suitable for all industries related to electric power.
The insulating encapsulation rubber mat or rubber blanket withstand voltage test device is time-saving and labor-saving, improves the working efficiency, and can be used for insulating electrical tests of insulating rubber mats in various shapes such as plates, mats and the like. The difficulty and the problem in the test site are solved pertinently, the professional management effect of the test is improved, and the potential safety hazard is eliminated. Simple manufacture, complete functions, strong pertinence, convenient operation and remarkable effect.
Drawings
FIG. 1 is a schematic diagram of a pressure test device for an insulation package rubber mat or blanket according to the present utility model.
Fig. 2 is a top view of a plexiglass sheet.
Fig. 3 is a schematic diagram of the placement of upper and lower metal electrode plates.
Fig. 4 is a schematic structural view of a high voltage electrode lead bar.
The figures are labeled as follows:
1-insulating panel, 2-lower metal electrode, 3-organic glass plate, 4-insulating pad/blanket to be tested, 5-upper metal electrode, 6-high voltage electrode lead bar, 61-conductive metal bar, 62-epoxy resin tray, 63-turnbuckle, 7-wet sponge, 8-supporting leg and 9-square hole.
Detailed Description
The utility model is further illustrated below with reference to specific examples.
Examples
As shown in figure 1, an insulation encapsulation rubber mat or blanket pressure-resistant test device comprises an alternating-current pressure-resistant test platform, wherein the alternating-current pressure-resistant test platform comprises an insulation panel 1, a supporting leg 8 (made of stainless steel square tubes with the wall thickness of 1.5mm, and fixed by lacing wires in opposite angles) is arranged at the bottom of the insulation panel 1, the whole height of the alternating-current pressure-resistant test platform is 1000mm, the length and the width of the insulation panel 1 are 1270mm, a lower metal electrode 2, an organic glass plate 3, an insulation mat/blanket 4 to be tested and an upper metal electrode 5 are sequentially paved on the insulation panel 1 from bottom to top, and a high-voltage electrode lead bar 6 is arranged on the upper metal electrode 5; square holes 9 are formed in the middle of the organic glass plate 3, the sizes of the square holes 9 are consistent with those of the lower metal electrode 2 and the upper metal electrode 5, and wet sponge 7 is placed in the square holes 9; the high-voltage electrode lead bar 6 comprises a conductive metal bar 61, an insulating layer is arranged on the outer side of the conductive metal bar 61, an epoxy resin tray 62 is sleeved at the bottom end of the conductive metal bar 61, the high-voltage electrode lead bar 6 is convenient to fix, and a turnbuckle 63 for connecting a high-voltage test lead is arranged at the top end of the conductive metal bar 61. (the lower end of the conductive metal rod 61 can be also provided with an electrode sucker, a permanent magnet is arranged below the electrode sucker, an epoxy resin tray 62 is sleeved outside the electrode sucker, and the close contact between the electrode and an insulating rubber mat (blanket) is realized by utilizing the adsorption function of the permanent magnet)
Further, a wet cloth is laid between the upper metal electrode 5 and the insulating pad/blanket to be tested 4.
Further, the square hole 9, the lower metal electrode 2 and the upper metal electrode 5 of the organic glass plate 3 are all square, the side length is 762mm, the organic glass plate 3 is also square, and the side length is 1270mm.
Further, the diameter of the conductive metal rod 61 is 10mm and the height is 700mm. And a fuse can be installed in the high-voltage electrode lead bar 6 to protect the insulating pad or the rubber blanket 4 to be tested.
The working process comprises the following steps: the sponge is wetted with dilute brine (tap water), but not too wet to overflow. After wetting, the insulating mat/blanket 4 to be tested will need to be cleaned of surface dirt with a rag to avoid affecting the test results. The insulation panel 1 of the alternating current withstand voltage test platform is sequentially provided with a lower metal electrode 2, an organic glass plate 3, an insulation pad/blanket 4 to be tested and an upper metal electrode 5, wet cloth is paved between the upper metal electrode 5 and the insulation pad/blanket 4 to be tested, the side length of the upper metal electrode and the side length of the lower metal electrode are about 200mm shorter than the side length of the insulation pad/blanket 4 to be tested, the distance is shown in fig. 3, so that all other areas of the insulation pad are covered by the upper metal electrode and the lower metal electrode except for surface discharge; the organic glass plate 3 is used as an auxiliary lower metal electrode 2, namely a low-voltage electrode (a wet sponge 7 is placed in the middle in a hollow mode, transparent organic glass is helpful for workers to align the distance and the position of the upper metal electrode and the lower metal electrode), the lower metal electrode 2 of the test platform is grounded, and the upper metal electrode 5 (namely a high-voltage electrode) is connected with a high-voltage test lead of the output end of the step-up transformer through a high-voltage electrode lead rod 6. Under the condition of confirming the safety of the test environment, continuous and uniform boosting to a specified voltage value is carried out according to the test procedure. No flashover or breakdown of the sample should occur in the test. The test is qualified without corona, flashover, breakdown, burn and obvious heating. Otherwise, the test result is unqualified.
Further, a push-pull drawer is installed at the lower part of the insulating panel 1 and is used for accommodating and storing upper and lower metal electrodes and the like, and a graduated scale is also installed at the lower part of the insulating panel 1.
Further, when the withstand voltage test device performs the surface power frequency withstand voltage test and the interlayer power frequency withstand voltage test on the insulating separator, the lower metal electrode 2 and the upper metal electrode 5 are rectangular, and have a length of 70mm and a width of 30mm.
The specific using method is as follows:
insulation separator test method.
According to the requirements of preventive test regulations of electric power safety tools, the insulating partition plate test comprises a surface power frequency withstand voltage test and an (interlayer) power frequency withstand voltage test.
Test item, cycle and requirements of insulating separator
Firstly, before the insulation partition board is tested, appearance inspection is firstly carried out, and the insulation partition board with serious scratches, hard injuries or cracks and wet bending deformation is directly used as an unqualified product.
1. Power frequency withstand voltage test for surface of insulating partition plate
A white insulating test platform (including test electrodes) was used. The surface withstand voltage test electrode (the lower metal electrode 2 and the upper metal electrode 5) adopts 2 metal plates with the length of 70mm and the width of 30mm, the distance between the upper metal electrode and the lower metal electrode is 300mm, the electrode plate is provided with a wiring hole, one end electrode is grounded, and the other end electrode is connected with high voltage. The test time insulating partition board is placed on an insulating test platform, then an upper metal electrode and a lower metal electrode are placed on the insulating partition board, the lower metal electrode is grounded, the other metal electrode is connected to a transformer, test personnel pressurizes a test product in a safe distance after the test is conducted, the test voltage is 60KV, the withstand voltage time is 1 minute, if flicker or breakdown occurs in the test process, the insulating partition board is proved to be unqualified, if no phenomenon exists, whether the insulating partition board has a burn mark is observed after the test is finished, if the insulating partition board is proved to be unqualified, the insulating partition board pressure-resistant part can be touched by hand, and if the insulating partition board is found to have a heating phenomenon, the insulating partition board is proved to be unqualified. If the phenomenon is not generated, the surface pressure resistance of the insulating partition plate can be qualified.
2. Insulating partition interlayer withstand voltage test (same insulating encapsulation rubber mat/blanket withstand voltage test method)
Firstly, the sponge of the alternating-current pressure-resistant test platform is wetted by dilute brine (tap water) but is not in a dripping state. And then removing stains on the surface of the insulating partition board to be tested, placing the insulating partition board on a platform, respectively positioning an upper metal electrode and a lower metal electrode on the upper side and the lower side of the insulating partition board, placing a high-voltage aluminum electrode (upper metal electrode) in the middle position of the insulating partition board, and leaving a space on four sides so as to avoid edgewise discharge. After the arrangement, the high-voltage output line of the transformer is connected to the aluminum electrode, and the lower metal electrode is grounded. The test personnel pressurized the insulating baffle at a safe distance to perform a withstand voltage test. The withstand voltage time was 1 minute. If flicker or breakdown exists in the test process, the insulation baffle plate is proved to be unqualified, if the phenomenon exists, after the test is finished, whether the insulation baffle plate has burn marks or not is observed, if the insulation baffle plate is proved to be unqualified, the voltage-resistant part of the insulation baffle plate can be touched by hands, and if the insulation baffle plate is found to have a heating phenomenon, the insulation baffle plate is proved to be unqualified. If the phenomenon is not generated, the interlayer voltage resistance of the insulating partition board can be qualified.
And if the surface pressure resistance and the interlayer pressure resistance of the insulating partition are qualified. The insulating separator can be qualified.
Claims (6)
1. The insulation packaging rubber mat or blanket pressure-resistant test device is characterized by comprising an alternating-current pressure-resistant test platform, wherein the alternating-current pressure-resistant test platform comprises an insulation panel (1), a supporting leg (8) is arranged at the bottom of the insulation panel (1), a lower metal electrode (2), an organic glass plate (3), an insulation mat/blanket to be tested (4) and an upper metal electrode (5) are sequentially paved on the insulation panel (1) from bottom to top, and a high-voltage electrode lead bar (6) is arranged on the upper metal electrode (5); square holes (9) are formed in the middle of the organic glass plate (3), the sizes of the square holes (9) are consistent with those of the lower metal electrode (2) and the upper metal electrode (5), and wet sponge (7) is placed in the square holes (9); the high-voltage electrode lead bar (6) comprises a conductive metal bar (61), an insulating layer is arranged on the outer side of the conductive metal bar (61), an epoxy resin tray (62) is sleeved at the bottom end of the conductive metal bar (61), and a turnbuckle (63) for connecting a high-voltage test lead is arranged at the top end of the conductive metal bar (61).
2. The insulation package rubber mat or blanket voltage withstand test device according to claim 1, characterized in that a wet cloth is also laid between the upper metal electrode (5) and the insulation mat/blanket (4) to be tested.
3. The insulation package rubber mat or blanket pressure test device according to claim 1, wherein the square hole (9), the lower metal electrode (2) and the upper metal electrode (5) of the organic glass plate (3) are all square, the side length is 762mm, the organic glass plate (3) is also square, and the side length is 1270mm.
4. The insulation package rubber mat or blanket pressure test device according to claim 1, characterized in that the conductive metal rod (61) has a diameter of 10mm and a height of 700mm.
5. The insulation packaging rubber mat or blanket pressure-resistant test device according to claim 1, wherein a push-pull drawer is arranged at the lower part of the insulation panel (1), and a graduated scale is also arranged at the lower part of the insulation panel (1).
6. The insulation package rubber mat or blanket voltage withstand test device according to claim 1, wherein when the voltage withstand test device performs the surface power frequency voltage withstand test and the interlayer power frequency voltage withstand test on the insulation separator, the lower metal electrode (2) and the upper metal electrode (5) are rectangular, and have a length of 70mm and a width of 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223437163.5U CN219162288U (en) | 2022-12-21 | 2022-12-21 | Insulation encapsulation rubber mat or blanket withstand voltage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223437163.5U CN219162288U (en) | 2022-12-21 | 2022-12-21 | Insulation encapsulation rubber mat or blanket withstand voltage test device |
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| Publication Number | Publication Date |
|---|---|
| CN219162288U true CN219162288U (en) | 2023-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223437163.5U Active CN219162288U (en) | 2022-12-21 | 2022-12-21 | Insulation encapsulation rubber mat or blanket withstand voltage test device |
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| Country | Link |
|---|---|
| CN (1) | CN219162288U (en) |
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- 2022-12-21 CN CN202223437163.5U patent/CN219162288U/en active Active
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