Corona-resistant polyimide film: superior anti-corona, thermal stability, dielectric strength. For motors, transformers, inverter-fed systems, high-voltage insulation.
| Type No. | TF6254#25 | TF6254#50 | TF6254FCR#38 | TF6254FCRF#50 |
| Thickness mm | 0.025 | 0.05 | 0.038 | 0.05 |
| Width mm | 1000 | 1000 | 1000 | 1000 |
| Length m | 1500 | 1500 | 1500 | 1500 |
| Tensile strength Mpa MD/TD | ≥135/≥115 | ≥135/ ≥115 | ≥135/≥115 | ≥135/≥115 |
| Elongation % | ≥28 | ≥28 | ≥28 | ≥28 |
| Heat contraction rate 200°C/400°C % | ≤1 / ≤3 | ≤1 / ≤3 | ≤1 / ≤3 | ≤1 / ≤3 |
| Electrical Operating Frequency intensityMv/m | ≥150 | ≥150 | ≥150 | ≥150 |
| Surface resistivity 200°C Ω | ≥1.0×10^13 | ≥1.0×10^13 | ≥1.0×10^13 | ≥1.0×10^13 |
| Volume resistivity 200°C Ω.m | ≥1.0×10^12 | ≥1.0×10^12 | ≥1.0×10^12 | ≥1.0×10^12 |
| Relatine dielectric Constant 48-62HZ | 3.5+/-0.4 | 3.5+/-0.4 | 3.5+/-0.4 | 3.5+/-0.4 |
| Dielectric loss factor 48-62HZ | ≤4.0x10^﹣3 | ≤4.0x10^﹣3 | ≤4.0x10^﹣3 | ≤4.0x10^﹣3 |
| Corona-resistant life(h) Voltage 1KV,frequency 20KHZ temperature 90℃±2℃ pulse rise time of 400ns H | ≥60 | ≥60 | ≥50 | ≥50 |
| Peel Strength(F and F) (N/25mm) | ≥4 | ≥4 |
