Quick Details
Place of Origin: China (Mainland) Brand Name: XINCHENG
Application: Oil immersed transformers Product name: Diamond dotted DDP electrical insulating paper
Edge Internal tearing resistance N : ≥115N Tear strength, Machine direction: ≥4000mN
Tear strength, Cross machine direction: ≥5500mN Dielectric breakdown
(volts/layer ,dry test
):≥:2100
Bonding strength: >500Kpa Model Number: DDP, cable paper, Kraft coated with heat
Type: Insulation Paper, insulation paper DDP diamond dotted paper Material: Wood pulp
Material: Insulation paper and resin Rated Voltage: 6~24KV/Layer
Standard color: Natural Temperature: 105-120°C
Thickness: 0.08;0.13;0.18;0.20;0.25mm,0.38mm,0.5mm,etc Double:available
Sample: Sample Available Width: 20-1900mm
Ash content:
≤0.7%
1.Product Description
Diamond pattern paper made of Kraft paper coated with heat curable epoxy resin.The epoxy adhesive is applied to both sides of the paper in a diamond pattern consisting of 9.5mm x9.5mm diamonds with 15.9mm center spacing.
Properties
It is a kind of material with inertia, dry and no conglutination at normal temperature (below 30
ºC). The Diamond Dotted Paper (DDP)will make the electric conductor forever felt up as a hard unit under the high temperature by its internal latency substance. When the temperature is rising up to 90
ºC, The Diamond Pattern Paper (DDP)begins one-off thaw and then one-off solidification. When to keep the temperature at 90
ºC for 90 minutes, the epoxy resin would paste on neighboring cable and paper safely. The felt intensity is as high as to 70psl at 100
ºC.(The value at least is equal to 0.450Mpa) (IEC standard)
Applications
The Diamond Dotted Paper to be used in oil immersed transformers,for coil insulation. On the insulation layer, there is a layer dotted epoxy resin that will be changed with high temperature change that is to be called as felt.
Specifications:
1).Density :0.85~1.10 g/cm3
2). Width: 800mm, 960mm, 1000mm, 1050mm, 1200mm, 1300mm
3).Thickness:0.08mm, 0.13mm, 0.18mm, 0.25mm
4). good dielectric properties and good mechanical properties after heat solidification
2. Color: nature,brown
3. Application :It is to be used in oil-immersed transformers for the insulation between coils. On the insulation layer, there is a layer dotted epoxy resin that will be changed with high temperature change that is to be called as felt.
Main Specification
| Properties |
Values |
| Thickness |
Inch |
0.003 |
0.005 |
0.007 |
0.010 |
0.015 |
0.020 |
| mm |
0.08 |
0.13 |
0.18 |
0.25 |
0.38 |
0.50 |
| Thickness tolerance |
±10% |
| Apparent density: g/cm^3 |
0.9~1.1, all thicknesses |
| Moisture content |
4.0% ~ 8.0%, all thicknesses |
| PH water extract |
6.0 ~ 8.0, all thicknesses |
| Ash content |
0.7% maximum |
| Elongation |
MD |
2% |
| TD |
4% |
| No-pollution oil of transformer |
Non-pollution |
| Coating thickness per side |
0.006mm to 0.012mm |
| Tear strength |
MD |
55 |
100 |
140 |
220 |
410 |
440 |
| TD |
70 |
145 |
210 |
370 |
600 |
700 |
| Tensile strength, Mpa |
MD |
70 |
70 |
80 |
80 |
80 |
80 |
| TD |
35 |
35 |
35 |
35 |
35 |
35 |
| Mullen burst strength, min(Psi) |
40 |
65 |
90 |
150 |
200 |
300 |
| Dielectric breakdown (KV/layer) |
Dry Test |
0.75 |
1.10 |
1.40 |
2.10 |
2.90 |
3.10 |
| Oil Test |
5.5 |
8.5 |
10.5 |
14.0 |
20.0 |
23.5 |
| Bonding strength |
Minimum 40 psi shear strength, tested at 100 degrees 450kpa. |
DDP Technical Data
| 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 |
% |
≤0.7 |
| 6 |
Water Extraction of
Electrical Conductivity |
mS/m |
≤8 |
| 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 |
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2 Curing conduction stock
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.
Packaging & Delivery
Packaging Details:
1. Roll packing in requested meter, protected by PP bag and carton, put on fumigation-free pallets, wrapped with shirinking film, finally palletized.
2. According to customer's requirement.
Delivery Time: 10 days after payment
Please Contact Us
Miss: lydia
http://chinainsulation.en.made-in-china.com
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