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Products > Insulating paper composite
Diamond dotted insulation paper
Issues time：2014-08-05 10:03:10
Diamond dotted insulation paper is made of electrical insulating paper with diamond-shape epoxy resindotted in both sides.The epoxy resin used in D.D.P. contains a kind of incubative hardener material, it is a dry and crisp material at normal temperature (below35℃).
This product has good dielectric properties and good mechanical properties after being heat-solidfication. It can be used as insulation material for coils and between layers of oil immerged power and distrbution transformeers.
tem Index. Unit Value 1 Thickness and tolerance mm 0.08 ±0.005 0.13 ±0.007 ±0.010 0.20 ±0.010 0.25 ±0.010 2 Density g/cm3 0.85～1.10 3 Single thickness μm 10～15 4 Moisture content % 4.0～8.0 5 Oil-absorption % ≥20 6 Bond strength at room temp. kPa ≥650 100℃±2℃ ≥450 7 Pollution for transformer oil - no pollution(△tan∮＜0.001) 8 Tensile Strength lengthwise N/10mm ≥60 ≥110 ≥160 ≥180 ≥230 crosswise ≥30 ≥50 ≥70 ≥80 ≥100 9 Tearing Strength lengthwise Mn ≥450 ≥900 ≥1350 ≥1500 ≥2000 crosswise ≥500 ≥1000 ≥1500 ≥1700 ≥2300 10 Breakdown voltage 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
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