- Contact Person : Mr. yan jingtao
- Company Name : Mingqun Optoelectronics Technology Co., Ltd.
- Tel : 86-536-5269708,15206367599
- Fax : 86-536-5269708
- Address : Shandong,shouguang,shougang city
- Country/Region : China
electrical insulation board(paper sheet)
Properties | Unit | Grade | |||||
3020 | 3021 | 3021B | 3021C | 3021D | |||
Flexural strength perpendicular to laminations | ≥ | MPa | 120 | 120 | 90 | 90 | 120 |
Bonding strength (≥10mm inthickness) | ≥ | N | 3600 | 3200 | 3000 | 2800 | 3600 |
Dielectric Strength Perpendicular to Laminations (in 90±2°C transformer oil, 1mm in thickness) | ≥ | kV/mm | 15.8 (E-96/105) | 12.1 | — | — | — |
Breakdown voltage parallel to laminations (in 90±2°C Transformer oil) | ≥ | kV | 35 (E-96/105) | 20 | 12 (20±5°C) | 8 (20±5°C) | 14 (20±5°C) |
Permittivity (48-62Hz) | ≤ | — | 5.5 | — | — | — | — |
Permittivity (1MHz) | ≤ | — | — | 5.5 | — | — | — |
Dissipation factor (48-62Hz) | ≤ | — | 0.05 | — | — | — | — |
Dissipation factor (1MHz) | ≤ | — | — | 0.05 | — | — | — |
Insulation Resistance after impregnated in water(D-24/23) | ≥ | Ω | — | 1.0×107 | — | — | — |
Density | g/cm3 | (1.30-1.40) | (1.30-1.45) | ||||
Water absorption (D-24/23,1.6mm in thickness) | ≤ | mg | 204 | 182 | — | — | — |
Color | — | Natural | Natural | Chocolate | Chocolate | Natural | |
Reference standard | Q/TXXFR001-2009 | ||||||
electrical insulation board
electrical insulation board(paper sheet)
