| Item | Unit | Value | |||||
| Thickness of base material | mm | 0.08±0.005 | 0.13±0.007 | 0.18±0.01 | 0.20±0.01 | 0.25±0.01 | |
| Density of base material | g/cm3 | 0.85~1.10 | |||||
| Thickness one side adhesive | μm | 10~15 | |||||
| Moisture | % | 4.0~8.0 | |||||
| Oil absorption | % | ≥20 | |||||
| Welding strength | Room temperature | kpa | ≥650 | ||||
| 100oC±2oC | ≥400 | ||||||
| Pollution of transformer oil | -- | No pollution (tanδ<0.001)<> | |||||
| Tensile Strength | Perpendicular | N/10mm Width | ≥60 | ≥110 | ≥160 | ≥180 | ≥230 |
| Parallel | ≥30 | ≥50 | ≥70 | ≥80 | ≥100 | ||
| Tear Strength | Perpendicular | mN | ≥450 | ≥900 | ≥1350 | ≥1500 | ≥2000 |
| Parallel | ≥500 | ≥1000 | ≥1500 | ≥1700 | ≥2300 | ||
| Breakdown Voltage | In air | kv | ≥0.88 | ≥1.37 | ≥2.00 | ≥2.10 | ≥2.25 |
| In oil | ≥4.40 | ≥7.00 | ≥9.00 | ≥9.80 | ≥11.50 | ||
