Description of 380 Phenolic Resin Cotton Cloth Tube
380 phenolic resin cotton cloth tube is tube-like laminated products, which is made of special cotton cloth impregnated with phenolic resin, and then rolled, baked and cured under heat and hot pressing.
It has excellent radial tensile strength, good mechanical strength and low water absorption. The insulation class is E class and the main color is coffee.
Application of 380 Phenolic Resin Cotton Cloth Tube
Advantage of 380 Phenolic Resin Cotton Cloth Tube
380 phenolic resin cotton cloth tube, produced by ZTelec Group using phenolic resin as raw material, can be mass-produced with advanced production equipment and automatic production line.
This product has the advantages of reliable quality, uniform color and neat cutting ends with strict manufacturing technology.
ZTelec Group is equipped with advanced ventilation facilities and dust-removing equipment to keep the products dry and clean.
The mechanical and electrical properties of products are superior to the similar one of other companies.
Its quality is recognized by domestic and foreign large enterprises such as Lens Technology in China and Schneider Electric and sold overseas such as European and American areas.
Property Parameter of 380 Phenolic Resin Cotton Cloth Tube
Executive Standard：JB-T3172-1999(3520) GB-T5132-2009 IEC61212-2006
| Number | Item | Unit | Value |
| 1 | Density | g/cm3 | 1.2-1.3 |
| 2 |
Flexural Strength at Perpendicular Lamination （Under Normal） |
MPa | ≥138 |
| 3 | Axial Compressive Strength | MPa | ≥118 |
| 4 |
Dielectric Strength at Perpendicular Lamination （Transformer Oil at 90℃） |
KV/mm | ≥3.5 |
| （Wall Thickness:3.0mm, Bore Size:20mm） | |||
| 5 | Water Absorption (3mm) | % | ≤5 |
| 6 | Thermal Index | – | 120 |
Product Specification of 380 Phenolic Resin Cotton Cloth Tube
| Name | Unit | Value |
| Minimum Wall Thickness | mm | 2 |
| Maximum Wall Thickness | mm | 200 |
| Minimum Bore Size | mm | 10 |
| Maximum Bore Size | mm | 1200 |
| Length | mm | 1000 |
