现代建筑电气
現代建築電氣
현대건축전기
MODER ARCHITECTURE ELECTRIC
2012年
1期
1-6
,共6页
雷击%灾害%风险评估%热电厂%浪涌保护器
雷擊%災害%風險評估%熱電廠%浪湧保護器
뢰격%재해%풍험평고%열전엄%랑용보호기
Llightning%harm prevention%risk evaluation%thermal power plant%surge protective device （SPD）
雷电灾害风险评估是防雷设计之前最重要的环节。从风险理论入手,简单介绍了风险、风险评估、自然灾害风险评估等概念,建立了一个较清晰的风险评估框架体系。针对热电厂的特殊结构,简化风险评估模型,用IEC 62305-2雷电灾害风险评估的评估方法对其进行雷击风险评估。结果显示,雷击风险主要是来自雷击建筑物及其相连线路造成的物理损害所引起的,需要在入户的架空电缆等设施上安装浪涌保护器,使热电厂达到高效防雷的目的。
雷電災害風險評估是防雷設計之前最重要的環節。從風險理論入手,簡單介紹瞭風險、風險評估、自然災害風險評估等概唸,建立瞭一箇較清晰的風險評估框架體繫。針對熱電廠的特殊結構,簡化風險評估模型,用IEC 62305-2雷電災害風險評估的評估方法對其進行雷擊風險評估。結果顯示,雷擊風險主要是來自雷擊建築物及其相連線路造成的物理損害所引起的,需要在入戶的架空電纜等設施上安裝浪湧保護器,使熱電廠達到高效防雷的目的。
뇌전재해풍험평고시방뢰설계지전최중요적배절。종풍험이론입수,간단개소료풍험、풍험평고、자연재해풍험평고등개념,건립료일개교청석적풍험평고광가체계。침대열전엄적특수결구,간화풍험평고모형,용IEC 62305-2뇌전재해풍험평고적평고방법대기진행뢰격풍험평고。결과현시,뢰격풍험주요시래자뢰격건축물급기상련선로조성적물리손해소인기적,수요재입호적가공전람등설시상안장랑용보호기,사열전엄체도고효방뢰적목적。
The risk evaluation work of lightning is the most important procedure of the lightning prevention work. Starting from the risk theory, the concept of risk, risk evaluation and risk evaluation for natural disasters were introduced. A specific framework for risk evaluation was established. Then aiming at the special structure of thermal power plant, the evaluation model was simplified and the evaluation work using the method in IEC 62305-2 risk evaluation for lightning disaster were done. The results showed that the lightning risk is mainly attributed to the physical damage in the main building and the circuit caused by lightning. Thus we should install surge protection device on aerial cable connecting to indoor space, to achieve the purpose of efficient lightning prevention work for thermal power plant.
