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工业绝缘层压制品
Technical data for laminated transformerboard
No.
Property
Unit
Value
1
Apparent density
g/cm
3
1.2 - 1.3
2
Moisture content
%
≤
4.0
3
Shrinkage
Thickness
%
≤
4.0
Otherwise
≤
1.0
4
Ash content
%
≤
0.8
5
Oil absorption
%
≥
9.0
6
Flexural strength
Vertical sheet D
N/cm
2
≥
100.0
Level Sheet D
≥
85.0
7
Elastic strength
Vertical sheet D
≥
120.0
Level Sheet D
≥
50.0
8
Conductivity of aqueous extract
Ms/m
≤
8.0
9
Electrical break down strength 50Hz
KV/mm
>6.0
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