It is created from electrical glass cloth with alkali-free that has been impregnated with polyester-imide resin under pressure and heat. The thermal grade is class H insulation. With excellent electrical. Physical and mechanical property, wet-resistant and radiation-proof. Used for the insulating slots. windings. gaskets. strips of the dry-type transformer/railway transformer/traction motor/electrical equipment etc.
Tubes: Thickness of wall 1.5-200mm Diameter: |µ 6-2000mm
Technical data
No Specification Unit Index
1 Flexural strength 1.6-3mm % <= 1 for length
>= 3mm <= 0.5 for length
2 Density g/ ?M 3 >= 1.60
3 Flexural strength at room temperature Mpa >= 117.6
4 Compressive strength Mpa >= 68.6
5 Shearing strength Mpa >= 9.8
At room
temperature >= 1.0X10 5
6 Volume resistively After wet M Ω m >= 1.0X10 3
180 oC >= 1.0X10 3
inner diameter inner diameter
<= 6-25mm >= 26mm
Electrical strength perpendicular 1.5mm 7 12
7 to lamination in transformer oil at 2.0mm KV 10 14
90 +- 2 oC (5 min)/thickness of wall 2.5mm 13 16
3.0mm 15 18 |