This test method can measure the relative tracking resistance of solid electrical insulating materials when the surface is exposed to water containing impurities under the action of an electric field at a voltage of up to 600V. GB/T 4207-2003 Method for determining the relative tracking index and tracking resistance index of solid insulating materials under humid conditions GB/T4207-2003 standard download decompression password: www.bzxz.net

GH/T4207-2003/1C.60112,1979 This standard is used for the determination of the electrochemical index of materials under the condition of comparison with the electrochemical index of materials (English version)
For the convenience of use, this standard has made the following editorial changes: 1. Delete the date and foreword of the international standard: 2. Replace the decimal point with "" as the decimal point"; 3. In the first and second paragraphs of each chapter, the phrase "\" is replaced by ""; 4. Replace the phrase "\" with ""; 5. Replace the phrase "\" with ""; 6. Replace the phrase "\" with ""; 7. Replace the phrase "\" with ""; 8. Replace the phrase "\" with ""; 9. Replace the phrase "\" with ""; 10. Replace the phrase "\" with ""; 11. Replace the phrase "\" with ""; 12. Replace the phrase "\" with ""; 13. Replace the phrase "\" with ""; 14. Replace the phrase "\" with ""; 15. Replace the phrase "\" with ""; 16. Replace the phrase "\" with ""; 17. Replace the phrase "\" with ""; 18. Replace the phrase "\" with ""; 19 ... This standard replaces GB/4207-.1984 - Determination method of induced electric tracking index of solid insulating materials under corresponding conditions. This standard is issued by China Electrical Equipment Industry Association and is under the jurisdiction of China Insulation Materials Standardization Technical Committee: This standard is revised by: China Electrical Devices Research Institute. The main contents of this standard are: This standard was first issued on March 1, 1912 and revised in 2003. GD/1 4207—2003/1 PC 60112:1979 Method for determination of comparative tracking index and resistance to tracking index of solid insulating materials under humid conditions This test method can measure the relative resistance to tracking of insulating materials and water containing impurities on the surface of the insulating material under voltage up to 60 volts: When the voltage is applied with the effect of the voltage being applied to the hot electrodes on the surface of the material, any tracking effect may occur under this test condition when the two electrodes are at the same level. 1. The number of droplets required to cause material failure increases with the increase of the applied voltage, and no electrochemical corrosion occurs under a certain limit. When the material is not electrochemically stable under the maximum test voltage, there may be different levels of corrosion, and the corrosion depth can be measured. This material can be tested in natural history.
Note 1: The method used in this paper is different from the time limit for electrochemical testing of materials in China, and the time limit for electrochemical testing of materials under commercial conditions is different. This method can be used to distinguish materials with good electrochemical performance from those with poor electrochemical performance. This method is not suitable for outdoor recovery materials. The common method of the version of the m5X?: the method of testing the insulation material and reading the test results of the insulation material,
position: when designing electrical equipment, the method of directly revealing the situation is used to obtain the test results of the safety version of the electrical cabinet. 2. The electrical insulation material surface is formed by the combination of electrical force and electrical quality. 2.2
Electrolytic erosion lertriculenusiun
caused by the effect of electrical insulation material, 2. 3
Compared with the tracking indexcnmparativetrackingmdex(CTl material has a maximum value of the layer in units of special electric layer, each series voltage is changed by CT! Send the bottom of the drum 25. 2.4
Proortracklngindex(PTI? The material is finally subjected to the full electrolyte before the technology stops the current grain of electricity with special units of electrical resistance jade letter, 3 sample
is more used to prove that the surface is flat, and its surface is used to test the range of the enterprise The body will flow out from the edge of the test. And the whole surface of rm×1mm should be selected by the supervisor 4, and it should be noted on the report. Note 1: In the case of reading or reading, in order to prove the internal requirements, the standard can be carried out before the strict and strict test. This test exists in the following standard product properties: 2: In the sample with a small size of m, the old one is not compared with each other, and the result is taught in or on, the board must be able to provide a fast amount of heat to receive the safety of C. Therefore, for the single-size test less than m, it is better to protect the two fast or the fast test again. 793, the shape of the single side in the report is still the best. Use a small direction.
Design 4: It is advisable to test on a surface with a few drops of water. If it is not possible, the surface of the scar is rented and the results are measured. The detailed surface condition is also reported by the person.
The surface of the sample is damaged by heat: the test results are clear. The amount of ionization of the trace is sweet. The test results are too high. The test results may be greater than the expected electric shock (the full number of changes is out of the city. The 4 station management
The surface of the sample should be cleaned and disinfected. There are versions, dirt, fingerprints, and oil. , deinert agent or other materials that may affect the test results, care should be taken to avoid material movement, deterioration, substantial damage or other damage during the decontamination test. Decontamination and treatment procedures should be described in the test report.
5 Test equipment
5.1 Electrodes
It has two metal electrodes with m2m short surfaces, one electrode is twisted into an angle of 30 (using 1), the surface of the material is fixed to the horizontal surface L, the angle between the two electrodes is 50°, and the distance between the electrodes is 4m ± 0.1mm (Figure 2). Each section of the test surface should be applied with 1.0N ± 0.05N. The device for placing the electrode on the test specimen is shown in the figure. The actual results are shown in the test report. The electrode used should be stated in the test report. The weak results obtained are not limited to TI and PTI. The middle part of the yellow state is the medium + 1---reduced needle.
5.2 Test circuit
Figure 3 Example of using a whip
GB/T4207-2003/IRC60112.1979 The voltage applied to the electrodes is a medium voltage that can be bent between 100V and 600V to basically stop the normal wave, and its frequency is between 48H2 and 60Hz. The power supply power is not less than 0.5kYA. The circuit diagram is shown in Figure 4. The power supply of the restaurant is delayed outflow energy appliance. 1-grid group, first level: Example of test circuit in Figure 4, GB/I4207-2003/IEC60112;1979 The transformer should adjust the fixed voltage drop between the two circuits to 1.0A-9: A and under this current, the voltage drop value indicated on the electricity meter shall not exceed: 5.
In the test of electrical engineering, the current relay should be operated with a current of 0.5A or more for 25 seconds. 5.3 Drop concentration device
The test fiber surface between the two poles should be tested for the test separation and mixing. The time for the solution to fall is 30 minutes. The liquid should fall from the center of the sample surface between the two drops at a distance of 3-40. The concentration should be (-) mm. Before each test, the net meter or other dropper should be replaced to flow out: 1: Let him dredge enough liquid to ensure that the correct degree of swimming is used. 1: In between each adjustment, the liquid remaining in the needle will cause the emperor to increase the stimulation of the need to develop. According to the experimental management time, the same technology was used to stop the research of micro-first production of 5-2℃ vehicle-Dino can go to the night point of the body. 2, in order to determine the effect of the small test on the 1m of the rain, the sheep can determine the size of the vaccine. Note 3: The test solution is 0.9m~3.11m, and the test result is affected by the time of the droplet end. 5.4 Test solution
Wave A: (11-0.21% chlorinated water (NE1.C1) is used to change the water content. The test solution is about: m:
Road TI, (0.: 1.0.002)% or the oxidation fraction (AH, (1) and (0,5 three 0.00) 2)% or the fraction of the system base firewood - Hui Na plate with distilled water or water filter, its droplet rate at 23 ℃: ± 1 ℃ is 170n · cm, mouth · cm excellent light soft historical liquid A.
need to press the body more effective net money should be monthly penetration wave: use gradual rolling H purchase in and PT value after not plate \ MIt means that the recorded voltage will be reduced by 2V and then tested at 5 points outside the test point. If the sample is not damaged under 100 drops of liquid, some materials can be tested after passing the requirements of GB/T42P7-203/13C60112.1979. For some materials, it is necessary to determine the expanded voltage value that can withstand any or multiple drops of liquid at five test points, and attach this voltage value to the Note: If the performance of the card material is good, the voltage is selected as the test value: for example, 3K, such as 5 micro-simple, etc., the voltage is added to the environment and the test is repeated; if the test column is less than 50V, the damage must be reduced, and the voltage is reduced to the nose. This is not a multiple of 2:25V, and the test period is continued to obtain a sample that withstands any 50 micro-high efficiency high voltage machine Note: 2: For the material of the machine, the sample is considered to be close to the price after the voltage is fully collected. The more the voltage is collected, the faster the voltage is reduced. Note: Attention: The higher the voltage is, the smaller the product may be (this voltage specification indicates the desired action) and the controlled voltage is not determined. At this time, a new test must be conducted. If the specified result is not obtained, the monitoring station can be informed. B.3 Current-proof test
In the material specification standard or the standard of the electrical equipment, or other standards, if a current withstand test is carried out, the test shall be carried out in accordance with 6.2, but the test shall be carried out only under a specified voltage. It is recommended to use five test pieces to test the specified number of samples without breaking. Sample. In special cases, fewer samples may be specified. The test voltage used is: 15+250V300V+375V or 560V, and the reverse eye trace ratio index is reduced to 1.6.4 The auxiliary setting
will not produce electricity in the sample flow except for the waste vortex attached to its surface loosely attached to the above flow effect: then it or on the level of the depth gauge, with a single special color part of the probe: the end of the measurement The maximum value of the five times of the test shall be noted in the test report: 6.4.1 When accepting the test, the depth of corrosion shall be measured on the test piece that has been tested under the voltage corresponding to TI. 6.4.2 When pressing the voltage, the depth of corrosion shall be measured on the sample that has been subjected to any 50 drops at the specified voltage. 7 Report bzxz.net
The test report shall include the following: ||t t||7.1 Confirmation of test materials.
1.2 Sample retention
7.3 Surface durability.
7.3.1 Test on the original surface.
7.3.2 Test whether the surface has been polished.
7.3.3 Test whether the surface has been dried.
2.3.4 Whether there are marks on the surface.
7.4 Processing procedures
7 .5 No need for gold-plated electronic control, the network indicates that the gold used for the electric control is high 7.6
If the material is not the same, then indicate the pollution. 7.7 Compared with the tracking index,
77,TI,\CTE00\,-C71400M\or\TT10U$503”7.7.2 Single camera depth, browse\CT751.2”,\CT127.Mt.2\cheng\CT275(200>-1.2\. 7.8 Ketone tracking index
.8.1 Test under the specified voltage or carbon damage: example effect\P7T175 passed or section! "7.8.2 Test passed or failed at the specified relative depth pressure, e.g. 1250-0.8 air or 11250M0.8 acid damage", "9 Ten samples are not reported within 7, 7, 8, and the symptoms are also reported.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.