| Rated Voltage: | 220KV |
|---|---|
| Application: | High Voltage |
| Material: | PAPER |
| Type: | Insulation Sheet |
| Brand Name: | HUISHENG |
| Place of Origin: | China (Mainland) |
Quick Details
Specifications
We
Produce pressboard of 0.8mm 8.0mm thickness. Our products passed the tests by the China Machinery Industry Electrical Material Products
Quality Supervision and Inspection Center in Nov. of 2008 and Apr. of 2011, the
Pressboard is in accordance with IEC60641-3-1 standard.
the Quality standard of H4 PRESSBOARD
No |
Property |
Unit |
Specification |
Standard | ||
1 |
Thickness tolerance |
% |
1.6mm |
6% | ||
1.6mm-8.0mm |
4% | |||||
2 |
Density |
G/cm3 |
1.6mm |
1.00-1.20 | ||
1.6mm-3.0mm |
1.10-1.25 | |||||
3.0mm-8.0mm |
1.15-1.30 | |||||
3 |
Tensile strength |
MD |
MPa |
1.6mm |
100 | |
1.6mm-3.0mm |
105 | |||||
3.0mm-8.0mm |
110 | |||||
CD |
1.6mm |
75 | ||||
1.6mm-3.0mm |
80 | |||||
3.0mm-8.0mm |
85 | |||||
4 |
Elongation |
MD |
% |
1.0mm-8.0mm |
3.5 | |
CD |
1.0mm-8.0mm |
4.5 | ||||
5 |
Compressibility |
% |
1.6mm |
10.0 | ||
1.6mm-3.0mm |
7.5 | |||||
3.0mm-6.0mm |
5.0 | |||||
6.0mm-8.0mm |
4.0 | |||||
6 |
Recoverable Factor after Compression |
% |
1.6mm |
50 | ||
1.6mm-8.0mm |
55 | |||||
7 |
Shrinkage |
MD |
% |
1.0mm-8.0mm |
0.5 | |
CD |
1.0mm-8.0mm |
0.7 | ||||
TD |
1.0mm-8.0mm |
5.0 | ||||
8 |
PLY BOND(Test by eye) |
/ |
When Tearing, One or Several layers Bursting with Obviously Rough Sighs&Coming-Out Fibres | |||
9 |
Moisture |
% |
1.0mm-8.0mm |
6.0 | ||
10 |
Ash |
% |
1.0mm-8.0mm |
0.6 | ||
11 |
Conductivity of aqueous extra |
mSm |
1.6mm |
3.0 | ||
1.6mm-3.0mm |
4.5 | |||||
3.0mm-6.0mm |
6.0 | |||||
6.0mm-7.0mm |
7.0 | |||||
7.0mm-8.0mm |
8.0 | |||||
12 |
PH of aqueous extra |
/ |
1.0mm-8.0mm |
6.0-8.0 | ||
13 |
Electrical strength in air |
kV/mm |
6.0mm |
13.0 | ||
6.0mm-8.0mm |
12.0 | |||||
14 |
Oil absorbency |
% |
1.6mm |
11.0 | ||
1.6mm-3.0mm |
9.0 | |||||
3.0mm-8.0mm |
7.0 | |||||
15 |
Electrical strength in oil |
kV/mm |
1.6mm |
45 | ||
1.6mm-8.0mm |
35 | |||||
16 |
Degree of polymerization |
/ |
/ |
1300 | ||
17 |
Tolerance of cutting Size |
mm |
1.0mm-8.0mm |
10mm | ||
18 |
Skewness tolerance |
mm |
1.0mm-8.0mm |
10mm | ||
