product description
Characteristic of Bismaleimide Laminated Glass Cloth Board
Bismaleimide laminated glass fiber sheet board has the temperature grade of class H. It has higher mechanical strength, heat resistance, dielectric properties, permeability, radiation resistance and flame resistance, which can be used for H-class motor and electrical appliance as components of insulation parts.
Parameter of Bismaleimide Laminated Glass Cloth Board
| Standard | GB/T 1303-2009/ IEC60893-2004 | ||
| Basic Information | Chinese Name | - | |
| IEC | BMIGC301 | ||
| NEMA | - | ||
| Basic Material | Glass fiber cloth | ||
| Resin | Bismaleimide | ||
| Color | Brownish red | ||
| No. | Test Item | Unit | Value |
| 1 | Density | g/m³ | 1.8~1.95 |
| 2 | Vertical Layer Bending Strength(normal) | Mpa | ≥350 |
| 3 |
Parallel Layer Impact Strength (simply supported beam method) |
KJ/m² | ≥60 |
| 4 | Vertical Layer Electrical Strength (90℃ transformer oil)(1mm thickness) | Kv/mm | ≥14.0 |
| 5 | Parallel Layer Breakdown Voltage (90℃ transformer oil) | kv | ≥35 |
| 6 | Dielectric Constant (50Hz) | - | ≤5.5 |
| 7 | Dielectric Loss Factor(50Hz) | ≤0.05 | |
| 8 | Insulation Resistance after Immersion | Ω |
≥1.0*10^8 |
| 9 | Proof Tracking Index(PTI) | - | ≥280 |
| 10 | Combustibility | - | HB40 |
| 11 | Temperature Index | - | 180 |
| 12 | Water Absorption (1-20mm thickness) | mg | 64~193 |
| Note: Range value are measured for different thicknesses | |||