GB/T 321-1980
Replaced
T/HBJLXH 005-2023
Active
Group standards
\nT/HBJLXH 005-2023 Calibration Method for Creepage Distance Test Cards
T/HBJLXH 005-2023
Price:
$ 20.00
Basic Information
Standard Code:
T/HBJLXH 005-2023
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
Integrated Metrology and Measurement
Publish Date:
2023-02-08
Implement Date:
2023-03-07
Scope
Main technical content: 4. Overview The creepage distance test card is designed in accordance with the requirements of GB 2099.1, GB 4706.1, GB 4943, GB 8898, GB 7000, etc. It features two structural types: straight and curved ruler, and is primarily used to check the creepage distance and electrical clearance of electrical components. 5. Measurement characteristics 5.1 Appearance The creepage distance test card should not have defects such as cracks, scratches, or rust. The test card should be engraved with nominal dimensions, a serial number, and the manufacturer's name, and should not have any defects that affect its use. 5.2 Width specifications of the test card: (1–10) mm 7. Calibration method 7.1 Visual inspection 7.2 Clean the surface of the test card with a universal tool microscope and measure it by the imaging method. Select three positions on the surface of the creepage distance gauge (top, middle, and bottom) for measurement, and take the arithmetic average of the three measurements as the calibration result. All measurement results should meet the technical requirements of the equipment.