3021 bakelite paper laminate sheet
USD $1 - $10 /Kilogram
Min.Order:1000 Kilograms
New Light (Xuchang) Electrical Insulation Materials Limited
3021 bakelite paper laminate sheet
1.Description: phenolic bakelite sheet is made from paper that impregnated with phenolic resin under pressure and heat. With high mechanical strength and electrical properties
2.Specifications:
1).Thermal grade: class E. 2).Thickness : 3-100mm
3).Size: 980 x 1,980mm ± 10mm; 1,000 X2,000mm ± 10mm ; 1030X(2000-2300) ± 10mm , (980-1030)x(980-1500) ± 10mm
3. standard color: Brown .orange,black
4. Applications:
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)
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°C transformer oil, 1 mm in thickness) | MV/m | ≥ 84 | 92 (90±5°C) |
Breakdown voltage parallel to laminations | KV | ≥ 20 | 22 |
(in 20±5°C 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 |
Properties | Unit | Index Value | Fact Value | |
3021B | 3021B | |||
Density | g/cm3 | 1.30-1.45 | 1.4 | |
Flexural strength | Mpa | ≥118 | 126 | |
Tensile strength | Mpa | ≥88 | 96 | |
Adhesive strength | N | 3200 | 3600 | |
Impact strength | KJ/M2 | 15 | 18 | |
insulation resistance Parallel to lamination | normal | MΩ | ≥1.0*1014 | 1.2*105 |
damp | ≥1.0*102 | 1.8*103 | ||
voltage resistance Parallel to lamination (in 20°C±5°C transformer oil 5min) | kv | ≥14 | OK | |
voltage resistance perpendicular to laminate (in 20°C±5°C transformer oil 5min) | 0.2-1mm | kv/mm | ≥14 | OK |
1.1-2mm | ||||
2.1-3mm | ||||
thermal stability | <20mm | °C | 90 | OK |
>20mm |