Medium resistance corona resistant tape 1. 2641A It is manufactured by non-alkali fiberglass fabric knitted with polyester fiber then impregnated with corona resistant varnish which includes the non-linear carborundum and silicone dioxide ,and cured at high temperature into B-stage material
Technical Requirement
No.
Item
Unit
Value
1
Appearance
-
Uniform coating ,without any outside impurity.
2
Thickness
mm
0.18±0.03
3
Width
mm
20~25±1
4
Density
g/㎡
300±30
5
Surface resistance
Ωcm/cm
5×108～5×1010
6
Core ID
mm
40
7
Length
m/Roll
35
8
Storage life
-
6 months under Temp.5℃,2 months under Temp.20℃, 1 months under Temp.30℃
Suitable for moulding, It can be used togethr with 2641、2641-1、2641-2D.It is mainly used at the end of stator winding for corona resistant structure in HV motor,hydraulic generator,steam generator.
2. 2641A-1 It is manufactured by non-alkali fiberglass fabric knitted with polyester fiber then impregnated with corona resistant varnish which includes the non-linear carborundum and silicone dioxide ,and cured at high temperature. Technical Requirement
