Pressboard for Transformer
Specifications
Transformer Pressboard100%sulfate insulating wood pulp. 0.1-0.6mmX1000mm
0.8/1/2/3/4/5/6/7/8mmX 1mX2m sheet. high quality ,
Transformer Pressboard
Number |
Index |
Unit |
Standard |
Test Result |
|
1 |
Norminal thickness |
mm |
2 |
2.1 |
|
2 |
Norminal Grammage |
g/cm3 |
1.1-1.25 |
1.14 |
|
3 |
Tensile Strength |
MD CD |
MPa |
≥105 ≥80 |
119 89 |
4 |
Elongation |
MD CD |
% |
≥3.0 ≥4.0 |
6.9 5.8 |
5 |
Breakdown Voltage |
KV/mm |
≥35 |
39.8 |
|
6 |
PH VALUE |
/ |
6.0-6.9 |
8.0 |
|
7 |
Content of water |
% |
5.0-6.0 |
5.6 |
|
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