| 1、Products Summarize：
The products are made of electrical alkali-free glass cloth,impregnated with epoxy-phenolic resin,by processing under coiling and heat.
3640 tubes have high mechanical,heat resistance and dielectric properties.it is suitable for insulation structure parts in electric equipments.and it is also used in transformer oil and humid environment. 2、Technique Indicator： | S.N | Item Name | Unit | Technique Indicator | | 1 | Specific Weight≥ | | 1.40 | | 2 | Bending Resistant Strength≥ | kgf/cm2 | 1800 | | 3 | Bending Resistant Strength≥ | kgf/cm2 | 700 | | 4 | Bending Resistant Strength≥ | kgf/cm2 | 150 | | 5 | Volume Resistance≥ | Ω.cm | 10 | | Normal | | 1012 | | After Soaking | | 1010 | | 6 | Parallel layer direction insulation≥ | Ω | | | Normal | | 1010 | | After Soaking | | 107 | | 7 | Dissipation Factor 50HZ≤ | | 0.030 | | 8 | Perpendicularity Breaking Strength In 90±2℃ transformer oil | KV | | | Withstand Voltage for 5 minutes | | | | Wall Thickness：1.5mm | | 12 | | 2.0mm | | 14 | | 2.5mm | | 16 | | 3.0mm | | 18 | | 9 | Parallel Withstand Voltage in 90±2℃ transformer oil
Withstand Voltage for 5 minutes | KV | 25 | | 10 | Surface Withstand Voltage after damp in normal air
Withstand Voltage for one minute | KV | 12 | |
