Following the research route of mend with study and development with creation, give the definition of risk and the methods of risk identifying, divide the risk attitude into risk loving, risk neutralism and risk avoiding, point out the importance of enhancing the risk consciousness for lightning hazard, and summarize the mechanisms of lightning hazard the theories and methods of risk assessment for lightning hazard. provide a set of risk assessment parameters for lightning hazard, which includes lightning times n, hazard probability p, hazard loss d, hazard risk r and protection efficiency e, and give the definition, decisive factor, value method and value scope of each parameter. establish a risk assessment model for lightning hazard which includes lightning hazard base module, lightning hazard probability module, lightning hazard loss module, lightning hazard accepted risk module, lightning protection cost module, correcting coefficient module, lightning hazard risk module, and lightning protection class and efficiency module
遵循借鑒改造和發展創新的研究思路,給出了風險的定義和風險識別的方法,將風險態度分為風險喜好型、風險中庸型和風險逃避型,指出了提高
雷電災
害風險意識的重要性,總結了
雷電災
害的作用機制和
雷電災
害風險評估的理論與方法;提供了包括
雷擊次數n 、
雷災概率p 、
雷災損失d 、
雷災風險r和
雷電防護級別與防護效率e等5類基本參數的
雷電災
害風險評估參數體系,並給出了各個參數的定義、參數的決定因素和取值方法以及取值范圍;設計了包括
雷電災
害基礎模塊、
雷電災
害概率評估模塊、
雷電災
害損失評估模塊、
雷電災
害允許風險評估模塊、
雷電防護成本評估模塊、校正系數模塊、
雷電災
害風險評估模塊、
雷電防護級別與效率分析模塊等8個模塊的
雷電災
害風險評估模型,評估模型以iec61662的評估模型為基本參考,以
雷災損失d為中心,把
雷災風險劃分為經濟
雷災風險r _ e和人身
雷災風險r _ l ,並對r _ e和r _ l分開單獨處理。
Earlier this year ray peavy, then head of los angeles county ' s homicide squad, was asked what should be done about gangs. “ the same thing you do about cockroaches or insects, ” he replied
今年較早前,洛杉磯凶殺科大佬
雷.皮威被問及應如何處置那些幫派時,他回答: 「就和你怎麼對付蟑螂或其他
害蟲一樣」 。
Sir walter raleigh brought from the new world that potato and that weed, the one a killer of pestilence by absorption, the other a poisoner of the ear, eye, heart, memory, will, understanding, all
沃爾特
雷利爵士: 196從新大陸帶回了土豆和煙草。前者能夠借吸收作用消滅惡疫197後者毒
害耳朵眼睛心臟記憶力意志力理解力,它毒
害一切。
According to greg mallet - prevost, who inherited the building, potential buyers fear the responsibilities. " if it was n ' t historic it would be worth a lot more. the heritage means that you ca n ' t make any changes, " said the fabulously mustachioed 65 - year - old former marine
據每日電訊報12月27日報道,小屋現在的主人格
雷格馬勒特普
雷斯沃特透露,有意購買這座文化遺產建築的人不多,人們都
害怕背負保護它的重任。
Bunny : i ' m scared shitless. david : maybe it ' s the retsina
我一點也不
害怕.是
雷特新納吧
The lightning resisting level of microelectronic device, the property of tvs diode and solid - state discharge triode, three grades protection for power source device, grounding and shield requirement for communication system to protect lightning and the lightning troubles in recent years at hubei electric power company were introduced
摘要介紹了微電子器件耐
雷水平、新型防
雷器件tvs管和固態放電管的特性、電源裝置的三級保護、通信系統防
雷接地與屏蔽的有關要求和湖北省電力公司通信系統中近幾年
雷害情況。
The problem of insulator pollution flashover in power lines is increasingly serious, because of increasing times and extending areas of flashover
線路絕緣子污閃問題日益突出,表現為污閃次數的增加、面積的擴大,與
雷害並列為造成停電事故的主要原因。
Climatology and environment on the plateau : main focuses are plateau climatology and environmental dynamics, arid climatology, and thunder lightning physics and the mechanism of its resulting hazards
高原大氣物理研究:主要方向有高原氣候與環境動力學;乾旱氣候;
雷電物理與
雷害機理。
Measuring of lightning parameters is the base work of lightning research. it is very important for researching the lightning characteristics, analyzing the accident of lightning, identifying the responsibility of lightning strike outage accident and discussing the strategies of lightning protection. it also can provide precise original data of atmosphere over - voltage for designing insulation co - ordination
雷電流參數的測量是進行雷電研究的基礎工作,對于研究雷電特性、分析雷害事故、鑒定雷擊跳閘事故責任、探討防雷對策及為絕緣配合設計提供精確的大氣過電壓原始數據均具有十分重要的意義。