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High temperature vulcanized (HTV) silicone rubber insulators and liquid silicone rubber (LSR) insulators are widely used in power system transmission lines. In order to compare the performance differences of HTV silicone rubber and LSR material for external insulation under typical formulas, the mechanical properties, electrical properties, and hydrophobicity of the two materials were tested. The results show that LSR has better mechanical and electrical properties than HTV silicone rubber. The initial hydrophobicity characteristics of HTV silicone rubber and LSR are similar. The crystallization temperature of LSR is lower than that of HTV silicone rubber, and the thermal stability is higher than that of HTV silicone rubber, which indicates that LSR is more suitable for operation in low temperature or high temperature outdoor environment.
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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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