Product description
The Diamond dotted Paper is to be used in oil-immersed transformers for the insulation between of 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.
It is a kind of material with inertia, dry and no conglutination at normal temperature (below 30? ? ), 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? ? , The Diamond Pattern Paper (DDP)begins one-off thaw and then one-off solidification. When to keep the temperature at 90? ? 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? ? . (The value at least is equal to 0.450Mpa) (IEC standard).
Test Report
Product Name: Diamond Dotted Paper (DDP)Test Method used: KLYQB/T5133-85Manufacture: Kang Liyuan Science & Technology (Tianjin) Co.,Ltd.Date: January, 2019 | Test No. | Item | Unit | Qualified Data | Test Data |
| 1 | Length | mm | 0.08±0.01 | 0.08 |
| 2 | Width | mm | -- |
|
| 3 | Tightness | g/cm3 | 0.95-1.05 | 1.01 |
| 4 | Tear Strength(horizontal) | MN | ≥5700 | 5765 |
| 5 | Tensile Strength(vertical) | KN/M | ≥38 | 38.6 |
| 6 | Tensile Strength(horizontal) | KN/M | ≥18 | 18.5 |
| 7 | Bonding Strength | MPa | ≥400 | 404 |
| 8 | Moisture Content | % | 6.0-9.0 | 6.7 |
| 9 | Breakdown Voltage | KV/mm | ≥45 | 45.6 |
