3240 Epoxy glass laminated sheet
3240 Epoxy-phenolic glass cloth laminated sheet is made of alkali-free E-glass cloth impregnated with epoxy resins by processing under heat and pressure.
This product having high mechanical and dielectric properties, fine heat and humidity resistance, can be used in electrical machine and devices as insulating construction parts in moist circumstances and in transformer oil.
1.Applications: With high mechanical strength, Insulation, heat resistance, electrical properties and good moisture resistance properties. Widely range of applications, for example: Suitable for using as insulating structural parts in electric equipment, such as electric generators, motors, switch board, etc.
2. Thickness: 0.2-100mm Size:; 1220x2440mm; 1020x2020mm Temperature grade:B glass(130℃) Color: yellow, red , green, black.
3.The other size can be supplied according to customers’ requests.
※Products can be supplied sheets or shapes according to customer drawing
※Note: The values noted in above technical specification are given only for our customers’ reference and should not be used in writing specifications.
4.Technical data：
|
Properties |
Unit |
Index Value |
Fact Value |
|
3240-A |
3240-A |
||
|
Flexural Strength perpendicular to laminations |
|||
|
A: under normal conditions |
Mpa |
≥340 |
345 |
|
Impact Strength parallel to laminations (Charpy) |
KJ/m2 |
≥33 |
34.5 |
|
Tensile Strength |
Mpa |
≥300 |
300 |
|
Insulation Resistance after immersion in water (D-24/23) |
W |
≥5.0×108 |
5.1×108 |
|
Dielectric Strength perpendicular to laminations |
KV/mm |
≥10.2 |
10.4 |
|
Breakdown Voltage parallel to laminations |
KV |
≥35 |
36.1 |
|
Permittivity (50Hz) |
≤5.5 |
5 |
|
|
Permittivity (1MHz) |
≤5.5 |
5.1 |
|
|
Dissipation Factor (50Hz) |
≤0.04 |
0.032 |
|
|
Dissipation Factor (1MHz) |
≤0.04 |
0.032 |
|
|
Water Absorption (D-24/23, 1.6mm |
≤mg |
34 |
21.5 |
|
Density |
g/cm3 |
(1.70-1.90) |
1.9 |
|
Color |
— |
Natural |
Natural |
|
Reference Standard |
— |
GB/T1303.1-1998 |
|
