Beijing Red Sun Composite Material Co., Ltd.

Paper Laminated Tube, Insulating Pipes, Insulating Tube manufacturer / supplier in China, offering Phenolic Paper Laminated Tube, 6640 (NMN) Polyaramid Fiber Paper Flexible Laminates, Materials and Molding Product SMC BMC/DMC and so on.

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Phenolic Paper Laminated Tube

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Basic Info.

Trademark:Redsun
Origin:China

Product Description

This product is made of insulation-convoluted papers impregnated with phenolic resin by coiling and pressing under heat. It is provided with better dielectric property. It can be used as a insulating construction material in electrical machines or in transformer oil.
NO: properties units values
ID 5— 25mm ID above 25mm
1 Density g/cm 3 ≥ 1.03 ≥ 1.10
2 Water absorption % ------- See Table 2
3 Thermal stability N/MM 2 ≥ 50 ≥ 60
4 Dielectric loss factor at 50HZ   ≤ 0.03 ≤ 0.03
5 proof voltage at perpendicular to lamination KV/mm ≥ 6.0 ≥ 6.0
6 proof voltage at parallel to lamination KV 20 25
7 Surface proof voltage KV 12 12
 
Table 2: water absorption indication
Wall thickness(mm) 1.5 3 5 7 10 13
Water absorption(%) 10 8 6 5 4 3
 
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Beijing Red Sun Composite Material Co., Ltd.

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