China Electrical Insulation Brown Formica 3025 Phenolic Bakelite Resin Cotton Cloth Fabric Laminate Board Sheet, Find details about China Phenolic Textolite Laminated Board, Cotton Fabric Bakelite Sheet from Electrical Insulation Brown Formica 3025 Phenolic Bakelite Resin Cotton Cloth Fabric Laminate Board Sheet
Test item | Unit | PFCP202 | PFCC201 | PFCC202 | PFCC203 | PFCC305 |
Density | g/m³ | 1.25-1.4 | 1.3-1.4 | |||
Vertical layer bending strength (normal) | MPa | ≥120 | ≥100 | ≥90 | ≥110 | ≥125 |
Parallel layer impact strength (simply supported beam method) | KJ/m2 | - | ≥7.8 | |||
Vertical layer electrical strength (90ºCtransformer oil) | Kv/mm | ≥15.8 | ≥5.1 | ≥5.1 | ≥5.1 | ≥5.1 |
Parallel layer breakdown voltage(90ºCtransformer oil) | kv | ≥35 | ≥20 | |||
Dielectric constant (50Hz) | - | ≤5.5(1MHz) | ||||
Proof tracking index(PTI) | - | ≥100 | ||||
Temperature index | - | 120 | ||||
Water absorption(1-20mm thickness) | mg | 180-970 | 206~406 | 136-277 |