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In order to assess the feasibility of using C5F10O/dry air gas mixture to replace existing dry air or nitrogen in insulation equipment under low partial pressure conditions, we analyzed the insulation performance of C5F10O/dry air gas mixture systematically. The results show that in a quasi-uniform electric field, when the partial pressure of C5F10O is 5-10 kPa, the insulation strength of the C5F10O/dry air gas mixture is 1.1-1.9 times and 1.4-2.3 times bigger than that of dry air and nitrogen under the same condition, respectively, which indicates that even at low partial pressures, the C5F10O/dry air still demonstrates strong insulation performance and has technical advantages compare to dry air or nitrogen. Furthermore, the C5F10O/dry air shows good stability in multiple breakdown tests, and the slope of fitting curves between breakdown voltage and breakdown times approaches zero, indicating that its insulation performance has not significantly deteriorated.
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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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