Diamond dotted DDP electrical Insulation Paper
it is made of electrical insulating paper with diamond-shape epoxy resin dotted in both sides. The epoxy resin uesd in D.D.P contains a kind of incubative hardener material, it is dry and crisp material at normal temperature.
Characterics and Applications
This product has good dielectric properties and good mechanical properties after being heat-solidification. It can be uesd as insulation material for coils and between layers of oil immerged power and distributive transformers.
Technical Parameters for Diamond dotted DDP electrical Insulation Paper
|
ITEM
|
Property
|
Unit
|
Index
|
|
1
|
Thickness and Tolerance
|
mm
|
0.08
±0.005
|
0.13
±0.007
|
0.18±0.01
|
0.20±0.01
|
0.25
±0.01
|
0.30
±0.01
|
0.35
±0.02
|
0.38
±0.02
|
0.45±
0.02
|
0.50±
0.03
|
|
2
|
Density
|
g/cm3
|
0.85~1.10
|
|
3
|
One Side Coating
|
μm
|
6~12
|
10~15
|
|
4
|
Moisture Content
|
%
|
4.0~8.0
|
|
5
|
Ash Content
|
%
|
≤1.0
|
|
6
|
Water Extraction of Electrical
Conductivity
|
mS/m
|
≤10
|
|
7
|
PH Water Extract
|
|
6.5~8.5
|
|
8
|
Oil Absorption
|
%
|
≥20
|
|
9
|
Bond Strength
|
Kpa
|
≥650
|
|
10
|
Tensile Strength
|
TD
|
N/10mm
|
60
|
110
|
160
|
180
|
230
|
≥250
|
|
|
|
MD
|
|
30
|
50
|
70
|
80
|
100
|
≥120
|
|
11
|
BDV
|
KV
|
0.88
|
1.37
|
2.00
|
2.10
|
2.25
|
≥2.50
|
Curing conduction stock for Diamond dotted DDP electrical Insulation Paper
2.1 Curing: 90°C±2 °C/3h firstly , then130°C±5°C/6h, or according customer needs
2.2 Storage: ≤40°C,dry, clean in warehouse. Avoid fire, heat and sunlight.
2.3 Storage life: 12 months. Still effective if qualified in retest after 12 months.