Epoxy fiberglass laminated sheet is s made of alkali-free E-glass cloth impregnated with epoxy resins and phenolic resin by processing under heat and pressure.
Description
Epoxy fiberglass laminated sheet is s made of alkali-free E-glass cloth impregnated with epoxy resins and phenolic resin by processing under heat and pressure.
Technical Parameter
No. | Item name | Unit | Test method | Index |
1 | Density | g/cm3 | GB/T5130 section 8.1 | (1.80-2.08) |
2 | Water absorption | mg | GB/T5130 section 8.2 | Refer to table 2 |
3 | Vertical layer direction bending strength | MPa | GB/T5130 section 5.1 | ≥340 |
4 | Vertical layer direction compression strength | MPa | GB/T5130 section 5.3 | ≥ (350) |
5 | Tensile strength | MPa | GB/T5130 section 5.7 | ≥ (300) |
6 | Compact strength (Simply strut-beam method) | KJ/m3 | GB/T5130 section 5.5.1 | ≥33 |
7 | Insulation resistance after water dipping | Ω | GB/T5130 section 6.3 | ≥5.0 × 108 |
8 | Mediate loss factor, 1MHz hour | ____ | GB/T5130 section 6.2 | ≤ 0.04 |
9 | Dielectric constant, 1MHz hour | ____ | GB/T5130 section 6.2 | ≤5.5 |
10 | Vertical layer direction electric strength at (90±2)ºC transformer oil | KV/mm | GB/T5130 section 6.1 | Refer to table 3 |
11 | Parallel layer direction striking voltage | kV | GB/T5130 section 6.1 | ≥35 |
Characters
Heat-resistance: B Class (130℃)
High mechanical and dielectric performance
Great moisture resistance
Good machining property
Application
It can be applied to generators, motors and electrical appliances as insulating structural parts and used in transformer oil and humid environment.
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Jul 31, 2020
Jul 30, 2020
