Results 111 to 120 of about 5,573 (183)

35 kV风电场架空集电线路不同防雷方式等同性研究

open access: yesGaoya dianqi
35 kV风电场架空集电线路多位于山岩地区,雷击跳闸率高,需要相应的防雷措施。目前,在山岩地区降低接地电阻困难,成本高,接地电阻值难以达标。文中研究了35 kV风电场架空集电线路的等效降阻防雷措施。结果表明,架设耦合地线时,耐雷水平可以达到接地电阻为5Ω时的水平;当35 kV集电线路安装线路避雷器时,雷击避雷线GJ-100、雷击避雷线OPGW、雷击导线时耐雷水平的提升幅度分别为8.23、7.86、70.8倍,对比降低接地电阻有更显著的提升效果。该研究将在35 ...
周秀   +7 more
doaj  

[Chinese expert consensus on the diagnosis and treatment of POEMS syndrome (2025)]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Plasma Cell Disease Group   +3 more
europepmc   +1 more source

[Prevalence characteristics of autoimmune thyroid disease in women aged 10-59 years in Qingdao City from 2022 to 2024]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Chen X   +8 more
europepmc   +1 more source

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