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What is the insulation grade of polyimide tape?

Publish Time: 2024-07-15
Polyimide tape (Polyimide Tape), as a high-performance insulating material, has a high insulation grade in the field of electrical insulation. Specifically, polyimide tape is usually classified as H-grade or higher insulation grade, which means that it can still maintain excellent insulation performance in high temperature environments.

Detailed description of insulation grade

H-grade insulation grade: In the electrical insulation standard, H-grade insulation material refers to materials that can maintain their insulation performance in an environment with a continuous working temperature of up to 180°C (or even higher, depending on the material properties). Polyimide tape can meet or even exceed this standard due to its excellent high-temperature resistance, so it is widely used in occasions requiring high-temperature insulation.

High-temperature resistance: Polyimide tape is made of polyimide film as the base material. The material has extremely high temperature resistance and the long-term use temperature range can reach -200~300°C. Some polyimide tapes can even remain stable at higher temperatures. This feature makes polyimide tape widely used in equipment that requires high-temperature insulation, such as motors and transformers.

Other excellent properties: In addition to high temperature resistance and excellent insulation performance, polyimide tape also has acid and alkali resistance, solvent resistance, and radiation resistance. These properties make polyimide tape have important applications in many fields such as electronics, aerospace, and automobile manufacturing.

Application examples: In the electronics and electrical industry, polyimide tape can be used for insulation wrapping of H-class motors and transformer coils, wrapping and fixing of high-temperature resistors, and thermal resistance protection for temperature measurement. In addition, it is also widely used in the fields of lithium battery positive and negative ear fixation, electronic circuit board wave soldering tin shielding, etc.

In summary, the insulation level of polyimide tape is usually classified as H-level or higher, thanks to its excellent high temperature resistance and excellent insulation performance. These characteristics make polyimide tape have important application value in many fields.
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