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Diamond Dotted Insulation Paper( DDP) 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
Width: 960mm 1000mm
PACAGE: Pallet
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
Width: 960mm 1000mm
PACAGE: Pallet
| Number | Index | Unit | Standard | |||||
| 1 | Thickness &tolerance | mm | 0.08±0.005 0.13±0.007 0.18±0.010 0.20±0.010 0.25±0.010 |
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| 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 | ||||
| 100ºC±2ºC | ≥400 | |||||||
| 7 | Pollution for transformer oil | - | Pollution-free(tan∮<0.001) | |||||
| 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 | |||