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A bionic superhydrophobic coating with excellent hydrophobicity and self-cleaning properties was used to prepare insulation surfaces, a DC flashover test of the contaminated insulation surface wetted by fog water was designed to study the DC pollution flashover characteristics of the bionic superhydrophobic insulation surface. At the same time, according to the wetting state of surface droplets, the pollution flashover voltage of the superhydrophobic coating surface was predicted from the perspective of electric field. The results show that the superhydrophobic coating surface exhibits self-cleaning properties during wetting and voltage applying process, and the flashover is formed through surface droplets and dry regions. The flashover voltage predicted by the method in this paper is negatively correlated with the droplet volume and positively correlated with the contact angle, the predicted value is in good agreement with the measured value, and the accuracy is higher than that of the traditional prediction model.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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