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3520 Phenolic Resin Paper-based Laminated Tube

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.

Description of 3520 Phenolic Resin Paper-based Laminated Tube

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.

Application of 3520 Phenolic Resin Paper-based Laminated Tube

It applies to as insulating structural spares for motors and electrical equipments under dry condition and transformer oil.

Advantage of 3520 Phenolic Resin Paper-based Laminated Tube

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. Meanwhile, 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 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

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