3250 phenolic paper tube

Laminated product series phenolic paper tubebr/>
Phenolic paper tube
Phenolic paper tube
It is a tubular layer made of oil-based electrical paper impregnated with phenolic resin or epoxy resin and heated and rolled. Pressed products. Laminated tubes have certain mechanical strength and electrical properties and are suitable for use in motors, electrical appliances and other electrical equipment, and can be used in transformer oil. Model, &
Product specifications generally have the longest length and the largest diameter that can be produced. Special specifications need to be determined through negotiation between both parties.
Heat resistance grade
Serial number
Project name
Unit
Test method
Index
Inner diameter
~
Inner diameter
Above
Density
/
/


Water absorption
%
/
See table
Thermal stability
℃
/


Flexural strength
/
/


Compressive strength
/
/


Dielectric loss factor, time
/


Vertical layer withstand voltage
At (+) ℃ withstand voltage in transformer oil
Wall thickness.~.
.~.
.~.
.~.
.～
/

(/中.条)
.
.
.
.
.
.
Parallel layer withstand voltage
At (+) ℃ withstand voltage in transformer oil
/
(/中. Article)

Surface withstand voltage
After getting wet, withstand in normal airbr/>
/
(/中. strip)