How many times does the leakage tracking sample meet to meet the standard?
Leakage tracking, how many times does the sample have to meet the standard? How to judge whether the sample is qualified or not?
GB4207 is stipulated as 5 times; when the current reaches 0.5A, the power will be cut off and there is an alarm sound, but the standard does not mention that the sample is on fire, and the sample is evaluated as unqualified;
The GB/T 4207-2003 standard stipulates the test method. The number of tests is based on the material standard or the electrical equipment standard. There are no requirements for the GB/T 4207-2003 standard "6.3 Resistance to Trace Test".
If a current of 0.5 A or more flows through a conductive path between the electrodes on the surface of the sample for at least 2 s, then the overcurrent relay operates, or the relay does not operate and the sample burns, and the sample is considered to have broken.
The test is carried out in accordance with 6.1, but the test is carried out only at a specified voltage. The specified number of samples shall withstand 50 drops without damage.
fulfill the standard:
IEC60112, IEC60335, IEC884-1, GB2099.1, UL 746A, GB/T4207, GB4706.1 ASTMD 3638-92 and other standards
product description:
The leakage tracking test (electric trace index test) is to apply a certain voltage between the platinum electrodes of the specified size (2mm × 5mm) on the surface of the solid insulating material and to set the height (35mm) at a predetermined time (30s). A drop volume of conductive liquid (0.1% NH 4 CL) is used to evaluate the leakage resistance of a solid insulating material surface under the combined action of an electric field and a wet or contaminated medium. The electrical tracking index (CT1) and electrical tracking resistance are measured. Index (PT1).
Leakage tracking tester (electric trace index tester) is suitable for research, production and quality inspection departments of lighting equipment, low-voltage electrical appliances, household appliances, machine tools, electrical machinery, electric tools, electronic instruments, electrical instruments, information technology equipment. It is also suitable for insulation materials, engineering plastics, electrical connectors and accessories.
Computer Desk,Desktop Computer Table,Computer Desk With Shelves,Computer Desk With Storage
DUOBUY TECHNOLOGY SHANDONG CO., LTD. , https://www.doubuytech.com