Diamond Dotted Paper /DDP Insulation Paper
Specifications
Diamond Dotted insulation paper (DDP) Excellent service here and good quantity!Diamond Dotted Insulation Paper( DDP)
it is made of electrical insulation paper with Diamond-shape epoxy resin dotted in both sides. The epoxy resin used in DDP contains a kind of incubative hardener material, it is a dry ad crisp material at normal temperature(below 35degree)
This product has good dielectric properties and good machenical properties after being heat-solidification. It can be used as coils and between layers of oil immerged power and distribution transformers.
thickness: 0.08mm 0.13mm 0.15mm 0.17mm 0.20mm 0.25mm 0.30mm 0.35mm 0.40mm 0.45mm and 0.50mm
Width:960mm,1000mm,1150mm.1250mm.
package:carton and pallet
STANDARD: JB/T4060-1991
Number |
Index |
Unit |
Standard |
|||||
1 |
Thickness &tolerance |
mm |
0.08±0.005 |
|||||
2 |
Density |
g/cm3 |
0.85~1.10 |
|||||
3 |
Adhensive thickness of single side |
μm |
10~15 |
|||||
4 |
Water content |
% |
4.0~8.0 |
|||||
5 |
Oil absorbency |
% |
≥20 |
|||||
6 |
Adhensive strength |
Ordinary state |
kPa |
≥650 |
||||
100°C±2°C |
≥400 |
|||||||
7 |
Pollution for transformer oil |
|
- |
|
||||
8 |
Tensile strength |
MD |
N/10mm width |
≥60 |
≥110 |
≥160 |
≥180 |
≥230 |
CD |
≥30 |
≥50 |
≥70 |
≥80 |
≥100 |
|||
9 |
Tear Index |
MD |
Mn |
≥450 |
≥900 |
≥1350 |
≥1500 |
≥2000 |
CD |
≥500 |
≥1000 |
≥1500 |
≥1700 |
≥2300 |
|||
10 |
Breakdown |
In air |
KV |
≥0.88 |
≥1.37 |
≥2.00 |
≥2.10 |
≥2.25 |
In oil |
≥4.40 |
≥7.00 |
≥9.00 |
≥9.80 |
≥11.50 |
|||
Store condition: Should store , in do not exceed 35° is dryed , clean with ventilate good
place, must not avoid sunlight near fiery source and warm wind direct.
Storage time: 12 months under normal temperature

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