Main wall insulation for VPI with accelerator
Flexible for an easy coil manufacture
Excellent impregnability
For Thermal Class F insulation system
Raw materials: based upon a woven glass fabric with an impregnated muscovite mica paper.
Application: in generators for the slot and end winding insulation of bars which are to be vacuum impregnated pressure (VPI), designed to be used with an epoxy-anhydride resin.
Process: recommend half lapped
Size: width 20mm and above
Technical datasheet
Property | Unit | Value | Test method |
Porosity | s/100ml | ≤1000 | ISO 5636/5 |
Thickness | mm | 0.15±0.02 | IEC 60371-2 |
Total weight | g/m2 | 198 ± 17 | IEC 60371-2 |
Mica paper | g/m2 | 160± 10 | IEC 60371-2 |
Glass fabric | g/m2 | 23±2 | IEC 60371-2 |
Accelerator content | mg/m2 | 460± 115 | |
Resin content | g/m2 | 15±4 | IEC 60371-2 |
Tensile strength | N/cm | ≥80 | IEC 60371-2 |
Breakdown voltage | kV | ≥1.5 | IEC 60371-2 |
Stiffness | N/m | ≤60 | IEC 60371-2 |
Min. shelf life at 20℃ | Mt. | 12 | |
Min. shelf life at 5℃ | Mt. | 24 | |
Thermal class | F (155℃) | IEC 60085 |