We are a leading firm, affianced in proving a best quality Phenolic Paper Sheet. This sheet finds application in transformers, automobile, electric motors, household appliances, cabinets, control boxes, electric switches, railway and medical appliances. Use of latest techniques and machines in manufacturing, we are able to produce this supreme quality 3021 Phenolic Paper Sheet with salient features like high wear properties, good mechanical and electrical strength, dimensional stability and dielectric loss properties. We offer excellent and protective packaging to make a safe and damage free product.
Features:
- High mechanical strength
- Good flexural and impact resistance
- Smooth surface
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)
Thermal grade: class E.
Thickness : 0.5-100mm Size: 1020x2020mm,980x1980mm,1220x2440mm
Color: Brown
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.
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) |
| >1.0x107 | 4.5x107 |
Dielectric strength perpendicular to laminations (in 90+5oC transformer oil, 1mm in thickness) | MV/m | >84 | 92 (90+5oC) |
Breakdown voltage parallel to laminations |
KV | >20 | 22 |
In (20+5oC 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 thickness) | mg | <182 | 163 |
Color |
|
| Orange |
Reference standard |
|
| Enterprise standard. |