3520 phenolic resin paper-based laminated tube is tube-like laminated products, which is manufactured by insulating winding paper impregnated with phenolic resin, and then rolled, backed and cured under heat and hot pressing with good mechanical strength and electrical property, and excellent dielectric property in dry condition. The insulation class is E class and the main color is coffee.
Heat resistance rating: Class E
Wall thickness: ≥2mm
Density: 1.2-1.3 g/cm3
Color: Brown
Size: d≤Ф50 Ф50-100 d≥Ф100 d≤Ф50 2mm Ф50-100 d≥Ф100 customize
Application
It applies to as insulating structural spares for motors and electrical equipments under dry condition and transformer oil.
Advantage
3520 phenolic resin paper-based laminated 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.
XUJUE ELECTRICAL 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 3520 Phenolic Resin Paper-based Laminated Tube
Executive Standard：JB-T3172-1999(3520) GB-T5132-2009 IEC61212-2006
| Number | Item | Unit | Value |
| 1 | Density | g/cm3 | 1.0-1.1 |
| 2 |
Flexural Strength at Perpendicular Lamination （Under Normal） |
MPa | ≥90 |
| 3 | Axial Compressive Strength | MPa | ≥60 |
| 4 |
Breakdown Voltage at Parallel Lamination （Transformer Oil at 90℃） |
Kv | ≥25 |
| 5 |
Dielectric Strength at Perpendicular Lamination （Transformer Oil at 90℃） |
KV/mm | ≥8 |
| （Wall Thickness: 3.0mm, Bore Size: 20mm） | |||
| 6 | Dielectric Loss Factor（50Hz） | – | ≤0.03 |
| 7 | Water Absorption (3mm) | % | ≤1 |
| 8 | Thermal Index | – | 120 |
Product Specification of 3520 Phenolic Resin Paper-based Laminated Tube
| Name | Unit | Value |
| Minimum Wall Thickness | mm | 2 |
| Maximum Wall Thickness | mm | 80 |
| Minimum Bore Size | mm | 10 |
| Maximum Bore Size | mm | 1200 |
| Length | mm | 1000 |
