3520 phenolic resin paper-based laminated tube is created by insulating winding paper and phenolic resin, mostly suitable for insulating structural spares for motors and electrical equipments under dry condition and transformer oil.
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.
It applies to as insulating structural spares for motors and electrical equipments under dry condition and transformer oil.
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.
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.
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 |
| 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 |
If you are attractive to our products, please send us a message and we will contact you as soon as we receive it. Email: info@ztelecgroup.com Whatsapp: +8615716749170
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