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3240环氧玻璃布层压板机械性能强,并有良好的机械加工性,在高温、高湿下电气性能稳定,用做变压器骨架、接线板、绝缘衬垫、压板等绝缘结构。在中温下机械性能高,在高温下电气性能稳定。 简称:环氧板 优点:机械强度高,高湿下电气性能好
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序号 | 性能 | 单位 | 指标值 | |
1 | 密度 | g/cm3 | 1.7~1.9 | |
2 | 垂直层向弯曲强度 纵向相对湿度50±5% |
23±2℃ | MPa | ≥340 |
155±5℃ | ≥170 | |||
3 |
冲击强度(简支梁无缺口) | 纵向 | KJ/m2 | ≥147 |
横向 | ≥98 | |||
4 | 垂直层向介电强度 90℃变压器油 1min≤3mm | MV/m | ≥11.5 | |
5 | 平行层向击穿电压 90℃ 变压器油1min | KV | 35 | |
6 | 平行层向绝缘电阻 相对湿度50±5% |
温度23±2℃ | Ω | ≥1×108 |
7 | 介质损耗因数 | 于浸水后,1MHz时 | - | ≤0.04 |
8 | 介质常数 | 于浸水后,1MHz时 | - | ≤5.5 |
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