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High resistance corona resistant tape
1. 2641
It is manufactured by non-alkali fiberglass fabric knitted with polyester fiber then impregnated with corona resistant high resistance 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 outside impurity. |
|
2 |
Thickness |
mm |
0.12±0.01 |
|
3 |
Width |
mm |
25±1 |
|
4 |
Density |
g/㎡ |
200±20 |
|
5 |
Surface resistance |
Ωcm/cm |
1×103～1×105 |
|
6 |
Core ID |
mm |
40 |
|
7 |
Length |
m/Roll |
60 |
|
8 |
Storage life |
－ |
6 months under Temp.5℃, 2 months under Temp.20℃, 1 months under Temp.30℃ |
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 |
5×1010～5×1012 |
|
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 and VPI.It is mainly used at the end of stator winding for corona resistant structure in HV motor,hydraulic generator,steam generato
2. 2641-1
It is manufactured by non-alkali fiberglass fabric knitted with polyester fiber then impregnated with high resistance varnish which includes the non-linear carborundum and silicone dioxide ,and cured at high temperature.
Technical Requirement
| No. |
Item |
Unit |
Value |
|
1 |
Appearance |
- |
Uniform coating ,without outside impurity. |
|
2 |
Thickness |
mm |
0.14±0.03, 0.18±0.03, 0.25±0.05 |
|
3 |
Width |
mm |
20~25±1 |
|
4 |
Density |
g/㎡ |
250±30, 300±30, 330±50 |
|
5 |
Surface resistance |
Ωcm/cm |
5×1010～5×1012 |
|
6 |
Core diametre |
mm |
40 |
|
7 |
Length |
m/Roll |
25 |
|
8 |
Shrinkage， 160℃ 1.5h. |
% |
≤7 |
Suitable for moulding and VPI, It is mainly used in the corona resistant structure at the stator winding’end of HV motor、hydraulic generator、steam generator.
3. 2641-2D
It is manufactured by non-alkali fiberglass fabric knitted with polyester fiber then impregnated with high resistance varnish which includes the non-linear carborundum and silicone dioxide ,and cured at high temperature.
Technical Requirement
| No. |
Item |
Unit |
Value |
|
1 |
Appearance |
- |
Uniform coating ,without any outside impurity. |
|
2 |
Thickness |
mm |
0.14±0.03 |
|
3 |
Width |
mm |
20~25±1 |
|
4 |
Density |
g/㎡ |
250±30 |
|
5 |
Surface resistance |
Ωcm/cm |
5×1010～5×1012 |
|
6 |
Core ID |
mm |
40 |
|
7 |
Length |
m/Roll |
25 |
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