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SPD热脱离装置是SPD结构中不可缺少的一个重要部分,它直接关系到整个系统的正常运行和防雷保护的连续性。文章简要介绍了SPD热脱离器的两种结构并从试验的角度对脱离器动作的可靠性进行了分析。 相似文献
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利用2000—2009年烟台市14个县市区的雷电灾害统计资料,结合烟台市各县市区的经济发展状况和人口密度特征,引用雷暴日数M,雷电灾害频度P,经济（GDP）易损模数D,生命易损模数L作为各县市区雷电灾害易损性评估指标,在此基础上计算出各县市区综合易损性指标,最后形成烟台市雷电灾害易损度区划。 相似文献
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太阳能热水器由于节能环保等优点,被小区广泛采用。此文从实际应用的角度出发,探讨小区尖顶房上成排放置的太阳能热水器防雷规划设计的几点看法。 相似文献
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In order to investigate the hydrocarbon generation process and gas potentials of source rocks in deepwater area of the Qiongdongnan Basin, kinetic parameters of gas generation(activation energy distribution and frequency factor) of the Yacheng Formation source rocks(coal and neritic mudstones) was determined by thermal simulation experiments in the closed system and the specific KINETICS Software. The results show that the activation energy(Ea) distribution of C1–C5 generation ranges from 50 to 74 kcal/mol with a frequency factor of 2.4×1015 s–1 for the neritic mudstone and the Ea distribution of C1–C5 generation ranges from 49 to 73 kcal/mol with a frequency factor of 8.92×1013 s–1 for the coal. On the basis of these kinetic parameters and combined with the data of sedimentary burial and paleothermal histories, the gas generation model of the Yacheng Formation source rocks closer to geological condition was worked out, indicating its main gas generation stage at Ro(vitrinite reflectance) of 1.25%–2.8%. Meanwhile, the gas generation process of the source rocks of different structural locations(central part, southern slope and south low uplift) in the Lingshui Sag was simulated. Among them, the gas generation of the Yacheng Formation source rocks in the central part and the southern slope of the sag entered the main gas window at 10 and 5 Ma respectively and the peak gas generation in the southern slope occurred at 3 Ma. The very late peak gas generation and the relatively large gas potential indices(GPI:20×108–60×108 m3/km2) would provide favorable conditions for the accumulation of large natural gas reserves in the deepwater area. 相似文献
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