3240D Epoxy glass fabric laminated sheet
Characteristics and applicationTemperature classification is B. Higher electric and mechanical properties. Used as spacer, processed products and insulating structural parts for electric machine, apparatus equipment and transformer.
StandardQ/XB3136-2008
Table 1: Technical requirements
No | Property | Unit | Normal Value | ||
1 |
Flexural strength perpendicular to layer | At room temperature | MPa | ≥230 | |
150±2 | |||||
2 | Impact strength parallel to layer (Charpy method) | kJ/m2 | ≥30 | ||
3 | Electric strength,perpendicular to the layerat 90±2 oil. | MV/m | Refer to table 3 | ||
4 | Breakdown voltage, perpendicular to layer direction. | kV | ≥28 | ||
5 | Dielectric constant | Under 48Hz62Hz | ≤5.5 | ||
under1Hz | |||||
6 | Dissipation factor | Under 48Hz62 Hz | ≤0.04 | ||
Under 1MHz. | |||||
7 | Insulation resistance after immersing in water. | W | ≥5.0×108 | ||
8 | Density | g/cm3 | ≥1.8 | ||
9 | Water absorption | % | Refer to table 4 | ||
Table 2: Electrical strength perpendicular to layer direction
Mean thickness mm | Normal Value Unit: MV/m |
1.0 | ≥14.2 |
1.2 | ≥13.7 |
1.4 | ≥13.2 |
1.6 | ≥12.7 |
1.8 | ≥12.2 |
2.0 | ≥11.8 |
2.2 | ≥11.4 |
2.4 | ≥11.1 |
2.5 | ≥10.9 |
2.6 | ≥10.8 |
2.8 | ≥10.5 |
Above 3.0 | ≥10.2 |
Table 3: Water absorption
Mean thickness Mm | Normal Value Unitmg |
| Mean thickness Mm | Normal Value Unitmg |
|
0.4 | 5 | ≤25 | |||
0.5 | 6 | ≤27 | |||
0.6 | 8 | ≤31 | |||
0.8 | 10 | ≤34 | |||
1.0 | 12 | ≤38 | |||
1.2 | 14 | ≤41 | |||
1.6 | ≤19 | 16 | ≤46 | ||
2.0 | ≤20 | 20 | ≤52 | ||
2.5 | ≤21 | 25 | ≤61 | ||
3 | ≤22 | Processed by one side to 22.5 | ≤73 | ||
4 | ≤23 |
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Epoxy glass fabric laminated sheet