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Specifications
Pressboard & Cardboard made 100%sulfate insulating wood pulp. 0.1-8.0mmX1000mm0.8/1/2/3/4/5/6/7/8mmX 1mX2m sheet. high quality
Electrical Pressboard & Cardboard for Transformer
1.The Insulation Transformer Pressboard is manufactured from 100% high quality sulfated insulating wood pulp. without sizing or used fillers. This paper is highly refind and cleaned to ensure uniform thickness and formation. It is allowed to exist for little Pinholes, Undispersed fiber bundles and Tiny defects if it doesn’t effect to meet the safety requirements in the manufacturing and applications of transformers and cables.
2.t is suited for making electromagnetic wire of transformers and other electrial insulating equipments Specification:
3.nominal thicknesses:1.0-8.0mm
4.size:1000mmX1000mm 1000mmX2000mm 2000mmX4000mm
5.roll diameter :1000mm
Number |
Index |
Unit |
Standard |
Test Result |
|
1 |
Norminal thickness |
mm |
1.9-2.1 |
2.0 |
|
2 |
Norminal Grammage |
g/cm3 |
1.1-1.25 |
1.18 |
|
3 |
Tensile Strength |
MD CD |
MPa |
≥105 ≥80 |
128 93 |
4 |
Elongation |
MD CD |
% |
≥3.0 ≥4.0 |
6.9 5.8 |
5 |
Breakdown Voltage |
KV/mm |
≥11 |
11.2 |
|
6 |
PH VALUE |
/ |
6.0-6.9 |
8.0 |
|
7 |
Content of water |
% |
≤8.0 |
5.6 |
|
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