1 3021 Phenolic paper laminated sheet is made from paper that impregnated with phenolic resin under pressure and heat. With high mechanical strength and electrical properties,
2. Application:
It is used for the insulating spare parts of electrical appliances and transformers, high mechanical properties electrical and mechanical devices.
3021A, 3021B, 3021C (China standard) is in accordance with X, XX, XXX, XP, XXP, XXXP, XPC (NEMA standard)
3. Thermal grade: class E.
4.Thickness : 0.5-100mm Size: 1020x2020mm,980x1980mm,1220x2440mm
5. Color: Brown
6. 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.
7.Technical data：
|
Properties |
Unit |
Index Value |
3021A(Fact Value) |
|
Flexural strength
perpendicular to laminations |
MPa |
≥120 |
126 |
|
Bonding strength (≥10mm in thickness) |
N |
≥3200 |
4100 |
|
Impact Strength |
KJ/m2 |
≥15 |
17.5 |
|
Tensile strength |
Mpa |
≥100 |
103 |
|
Insulation resistance
after immersion in water (D-24/23) |
Ω |
≥1.0×107 |
4.5×107 |
|
Dielectric strength perpendicular to laminations
(in 90±5℃ transformer oil, 1 mm in thickness) |
MV/m |
≥ 84 |
92 (90±5℃) |
|
Breakdown voltage parallel to laminations |
KV |
≥ 20 |
22 |
|
(in 20±5℃ transformer oil) |
|
Permittivity (50Hz) |
— |
- |
- |
|
Permittivity (1MHz) |
— |
≤5.5 |
5 |
|
Dissipation factor (50Hz) |
— |
≤ |
- |
|
Dissipation factor (1MHz) |
— |
≤0.05 |
0.03 |
|
Density |
g/cm3 |
1.30-1.45 |
1.41 |
|
Water absorption (D-24/23, 1.6mm in tickness) |
mg |
≤182 |
163 |
|
Color |
— |
|
Organge |
|
Reference standard |
— |
|
Enterprise Standard | |
