|
 1. COMPOSITION AND PRESENTATION
500kV layer transformer insulating paper is made from 100% high quality unbleached sulfate wood pulp.
This product is reel. Diameter of reel: 550¡«650mm. Width of reel: 625¡À5mm or according to order
2. PROPERTIES & APPLICATIONS
used for 500kV transformer and reactor (rated voltage: ¡Ü500kV).
3. MAIN TECHNICAL CHARACTERISTICS
|
Index name
|
Unit
|
Specification |
|
BZZ-075 |
BZZ-125 |
|
Thickness |
µm |
75¡À5 |
125¡À7 |
|
Apparent density |
g/cm3 |
0.95¡À0.05 |
|
Tensile strength ¡Ý |
MD |
kN/m |
6.00 |
9.20 |
|
CD |
2.60 |
4.20 |
|
Stretch ¡Ý |
MD |
% |
2.0 |
2.3 |
|
CD |
6.0 |
7.0 |
|
Porosity ¡Ü |
µm/(Pa.s) |
0.085 |
0.255 |
|
Tear strength CD ¡Ý |
mN |
500 |
1015 |
|
Dielectric breakdown strength¡Ý |
kV/mm |
8.00 |
|
Electrical conductivity of
water extract ¡Ü |
ms/m |
4.0 |
|
PH of water extract |
¡¡-- |
6.0-8.0 |
|
