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Hanyao Thermally upgraded diamond dotted paper made in China is achieved by adding nitrogen to the pulp. This product has better heat resistance than conventional diamond dotted paper, but its performance in other aspects is similar. This product is generally used on distribution transformers with higher requirements.In order to ensure the quality, our raw materials are purchased from well-known manufacturers at home and abroad, and the after-sales service is guaranteed.At present, our materials have been sent to all parts of the world and have been recognized by customers.If you are interested in our products, please contact us for more details
| No. | Item | Unit | Value | ||||||
| 1 | Substrate thickness and tolerance | mm | 0.085±0.005 | 0.13± 0.007 | 0.18± 0.015 | 0.25± 0.020 | 0.38± 0.020 | 0.50± 0.030 | |
| 2 | Base material tightness | g/cm3 | 0.85~1.10 | ||||||
| 3 | Single-sided adhesive thickness | um | 6~12 | ||||||
| 4 | Water content | % | 4~8 | ||||||
| 5 | Ash content | % | ≤0.60 | ||||||
| 6 | Conductivity of water extract | mS/m | 10 | ||||||
| 7 | pH of water extract | - | 6.5~8.5 | ||||||
| 8 | Oil absorption | % | ≥20 | ||||||
| 9 | Nitrogen content | % | 1.5 | ||||||
| 10 | Bonding strength | Normal | Kpa | ≥650 | |||||
| 100℃±2℃ | ≥400 | ||||||||
| 11 | Pollution to transformer oil | - | ≤0.001 | ||||||
| 12 | Tensile strength | MD | N/10mm | ≥90 | ≥120 | ≥180 | ≥240 | ≥260 | ≥400 |
| TD | ≥30 | ≥60 | ≥90 | ≥110 | ≥240 | ≥300 | |||
| 13 | Elongation | MD | % | ≥2.0 | |||||
| TD | ≥4.0 | ||||||||
| 14 | Dielectric strength | In air | kv | ≥0.90 | ≥1.40 | ≥2.20 | ≥2.60 | ≥3.70 | ≥5.0 |
| In oil | ≥5.50 | ≥8.00 | ≥10.00 | ≥13.00 | ≥20.0 | ≥22.50 | |||
Disclaimer: The performance figures, parameters, and features described are typical values under specific test conditions and may vary in actual applications. They do not constitute a warranty or guarantee of performance under all conditions. Users are responsible for verifying the suitability of the product for their intended application.
1.Thermally upgraded diamond dotted paper is able to withstand temperature upto 120℃
2.It is made from 100% electric grade unbleached pulp in green color.
3.It has both excellent electrical and mechanical strength,ensuring stability of transformer winding.
4. It is used as insulation between coils in power transformer and distribution transformer.
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