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Specifications
1.Consistent quality and competitive price2. ISO9001-2008 and SGS approve
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Name of goods:
Diamond Pattern Paper, Diamond Dotted Insulating Presspaper, Diamond Dotted paper, DDP, Double Sided
Diamond Pattern Resin Coated Paper
Dimensions
Thickness(mm) ---0.08mm, 0.13mm ,0.18mm , 0.20mm 0.25mm ,0.38mm ,0.50mm
Width (mm)---.625 ,960,1000,1020,1100
We also can produce Width of DDP according to customer’s requirements
Roll Diameter--- 280-330mm
Core Diameter --- 76±2mm
Diamond pattern adhesive insulating paper is a type of insulation material coating special modified epoxy resin one electrical insulating materials. It is widely applied in inter-layer insulation and turn insulation of oil-immersed power transformers. During application the coated layer starts to melt under certain temperature in the process of coildrying and results in adhesion effect. As temperature rises, it starts to solidify and makes coils’ adjacent layers reliably bond into a fixed unit. The adhesive strength of epoxy resin is strong enough to prevent the displacement of coil layers in case of short-circuit. so as to ensure the long-term mechanical and electrical performance of insulation structure
No |
Test items |
Unit |
Require |
|
1 |
thickness |
mm |
0.13 |
|
2 |
Base material tightness |
g/m3 |
0.85-1.10 |
|
3 |
Moisture |
% |
4.0-8.0 |
|
4 |
Oil absorption |
% |
20 |
|
5 |
Tensile strength |
Vertical |
N/10mm |
110 |
Horizontal |
50 |
|||
6 |
Tear strength |
Vertical |
MN |
900 |
Horizontal |
1000 |
|||
7 |
Breakdown Voltage |
In air |
KV |
1.37 |
In oil |
7 |
|||
8 |
Adhesive strength |
Normal state |
KPA |
650 |
100°C±2°C |
400 |
|||
Product Solidification conditions: firstly ,temperature rises to 125±5°C after maintaining 90±5°C for three hours and then the product completely solidifies after maintaining for six fours
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