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《建筑物防雷设计规范》GB 50057-2010在防雷分类的相关内容上做了诸多修改,为了能更全面的掌握新旧规范防雷类别划分标准的区别,从爆炸危险环境分区和分类、火灾危险场所和一般性工业建筑物的分类以及用于划分防雷类别的年预计雷击次数的阈值及其计算式的变化等方面,逐一分析了防雷分类相关条款的内容及其与旧规范的区别,并通过实例比较了规范的修改对防雷类别划分结果的影响。最后总结了新规范防雷分类的总体变化:爆炸性粉尘环境由2个分区增加到3个,取消了火灾危险环境的分区;提高了对爆炸性粉尘环境、火灾危险环境及一般性工业建筑的防雷安全要求;对于按预计雷击次数划分防雷类别的建筑物,提高了其分类的阈值。按照新规范的计算方法,我国大部分地区计算得到的Ng比旧规范的大,Ae一般比旧规范的要小。因此,此类建筑物的防雷要求的提高与否并不能一概而论,需要根据新规范的要求计算其年预计雷击次数,进而判定其防雷类别。 相似文献
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文章深入分析了新颁布的《建筑物防雷设计规范》GB50057-2010实施后,在防雷图纸审核工作中遇到的若干问题,阐述了新规范对防雷图纸审核工作带来的影响,探讨了新规范实施初期防雷图纸审核应对举措。 相似文献
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建(构)筑物防雷装置检测方法与技术标准的应用 总被引：1，自引：0，他引：1
考虑到目前我国尚未制订统一的防雷装置检测规范和技术标准,以高层建筑物为例,在依据现有相关防雷规范和技术标准、结合建筑物防雷装置检测实际的基础上,总结归纳出建筑物防雷装置检测的一般方法和技术标准的判定,并对其实际应用中的若干注意事项进行了分析与归类。 相似文献
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从理论上来说,防雷服务的需求是一种刚性需求,防雷服务的供给则随着市场的放开,从行政垄断转向自由竞争。现阶段,防雷服务市场正处于调整期,出现了防雷服务需求的异变和防雷服务供给的迎合等亟待解决的问题。究其原因,防雷安全生产的监管乏力和防雷服务市场的规范不足难辞其咎。规范防雷服务市场有利于提高防雷安全水平,可以采取以下对策:(1)挖掘市场潜力,培育市场需求;(2)加大对防雷服务机构的监督管理;(3)完善防雷服务机构的信用监管;(4)发挥防雷协会的独特作用。 相似文献
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根据《中华人民共和国气象法》、《防雷减灾管理办法》(中国气象局令第8号)和《防雷装置设计审核和竣工验收规定》(中国气象局令第11号)等法律、法规的规定,对防雷工程的设计图纸实行审核制度,并由气象主管机构依据国家防雷设计规范和有关行业的设计标准进行审核。为了推动该项工作的有序开展,结合我们多年的防雷工作实践,对防雷工程图纸的设计审核方法加以探讨。1防雷工程设计审核的主要依据规范是设计审核的依据。目前应用的防雷设计规范有:GB50057-94《建筑物防雷设计规范》;JGJ/T16-92《民用建筑电气设计规范》;GB/T50314-2000《智… 相似文献
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根据国际电工委员会（ＩＥＣ） 和我国有关防雷技术标准和规范, 提出计算机机房综合防雷措施及相关指标, 并简要介绍了计算机机房的防雷安全检查内容。 相似文献
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骨干网络安全防护技术探讨 总被引：1，自引：2，他引：1
目前网络的开放性和共享性在方便人们使用的同时,也更容易受到攻击,网络安全问题越来越引起人们的关注。文章通过对现有中国气象局骨干网络安全防护系统的简要分析,结合当今主流的网络安全防护理论和相关软硬件技术,阐述了在骨干网络中建立集入侵检测系统、安全漏洞扫描、防火墙系统和防病毒系统于一体的多层次、全方位的网络安全防护体系的必要性,并对骨干网络安全防护系统的改进方向提出了建议。 相似文献
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中国天气网是中国气象局面向公众提供气象信息服务的核心门户。为适应其日益增长的访问量,并保障网站可用性及访问体验等要求,网站已建立包含可用性、用户体验、网站访问、网络、安全、系统和应用等多方面的综合监控系统。实现了可根据体验、可用性、成本、安全等多方面因素,可面向多种具体业务场景的灵活多样的负载调控手段。基于监控和调控,构建了经内容本地加速的多源站弹性架构。在访问体验、可用性、带宽容量、安全、成本、业务特性需求等多方面提升了网站能力。 相似文献
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为满足用户对公共气象服务更精细化、个性化的要求,研制了自驾天气服务系统.该系统采用Magento系统作为门户网站,利用JMS完成各服务器之间的通信,使用GMAP API获取路线信息,应用Mysql数据库和NC文件存储库存储服务信息和气象信息.通过SSL安全认证,支付宝,GMAP API和JMS与门户网站集成的方法,完成用户定制自驾天气服务产品的功能.目前,该系统已经进入试运行阶段.试运行状况表明,自驾天气服务系统能够满足公众对气象服务的个性化和差异化要求,有利于气象服务事业的发展. 相似文献
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Urban water supply security is commonly measured in terms of per capita water availability at the city level. However, the actual services that citizens receive are influenced by several components, including (1) a city's access to water, (2) infrastructure for its treatment, storage and distribution, (3) financial capital for building and maintaining infrastructure, and (4) management efficacy for regulating and operating the water system. These four types of "capital" are required for the provision of public water supply services. A fifth capital “community adaptation” is needed when public services are insufficient. Here, we develop and test an integrated framework for the quantification of urban water supply security based on these five capitals. “Security” involves three dimensions: 1) the level of system function (i.e., supply services); 2) risks to these services; and 3) robustness of system functioning. We apply this Capital Portfolio Approach (CPA) to seven urban case studies selected from a wide range of hydro-climatic and socio-economic regions on four continents. Detailed data on urban water infrastructure and services were collected in two cities, and key stakeholder interviews and household surveys were conducted in one city. Additional cities were assessed based on publicly available utility and globally available datasets. We find that in cities with high levels of public services, adaptive capacity remains inactive, while cities with high levels of water insecurity rely on community adaptation for self-provision of services. Inequality in the capacity to adapt leads to variable levels of urban water security and the vulnerability of the urban poor. Results demonstrate the applicability of the presented framework for the assessment of individual urban water systems, as well as for cross-city comparison of any type of cities. We discuss implications for policy and decision-making. 相似文献
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Teresa A. Myers Matthew C. Nisbet Edward W. Maibach Anthony A. Leiserowitz 《Climatic change》2012,113(3-4):1105-1112
Communication researchers and practitioners have suggested that framing climate change in terms of public health and/or national security may make climate change more personally relevant and emotionally engaging to segments of the public who are currently disengaged or even dismissive of the issue. To evaluate these assumptions, using a nationally representative online survey of U.S. residents (N?=?1,127) conducted in December, 2010, we randomly assigned six previously identified audience segments on climate change to one of three experimental conditions. Subjects were asked to read uniquely framed news articles about climate change emphasizing either the risks to the environment, public health, or national security and the benefits of mitigation and adaptation-related actions. Results show that across audience segments, the public health focus was the most likely to elicit emotional reactions consistent with support for climate change mitigation and adaptation. Findings also indicated that the national security frame may possibly boomerang among audience segments already doubtful or dismissive of the issue, eliciting unintended feelings of anger. 相似文献
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In this paper we discuss the importance of framing the question of public acceptance of sustainable energy transitions in terms of values and a ‘whole-system’ lens. This assertion is based on findings arising from a major research project examining public values, attitudes and acceptability with regards to whole energy system change using a mixed-method (six deliberative workshops, n = 68, and a nationally representative survey, n = 2441), interdisciplinary approach. Through the research we identify a set of social values associated with desirable energy futures in the UK, where the values represent identifiable cultural resources people draw on to guide their preference formation about particular aspects of energy system change. As such, we characterise public perspectives as being underpinned by six value clusters relating to efficiency and wastefulness, environment and nature, security and stability, social justice and fairness, autonomy and power, and processes and change. We argue that this ‘value system’ provides a basis for understanding core reasons for public acceptance or rejection of different energy system aspects and processes. We conclude that a focus on values that underpin more specific preferences for energy system change brings insights that could provide a basis for improved dialogue, more robust decision-making, and for anticipating likely points of conflict in energy transitions. 相似文献
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采用哥本哈根学派提出的安全化方法,对中美气候安全化水平进行对比,结果表明：安全是一种主体间现象,通过中美气候安全化水平的对比,可以清楚地识别出中国处于由政治权威、科学权威作为安全化主体的高强度“安全化”过程中,而美国正处于由政治权威引导的“反安全化”过程。“主体间性”是安全化主体之间对存在性威胁的认同程度,中国气候安全化的主体间性与气候安全化进程不协调,表现为中国政治高层的气候安全化水平较高,而公众的安全化水平相对较低。气候安全存在性威胁表达是制约中国公众气候安全化水平的重要因素,表现为安全化视角和媒介单一。建议通过引入全球视角和图形化等方式增强存在性威胁表达效果,以提升中国气候安全化水平。 相似文献
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To achieve environmental sustainability and reduce their vulnerability to oil shocks, countries can develop new energy technologies. Technological advances reduce the cost of structural changes in the energy economy, and thus also increase the political feasibility of such changes. But what explains international variation in the form and quality of energy technology innovation? We build on previous theories and offer an integrated account: increasing oil prices reinforce existing sectoral innovation systems, both politically and economically, thus allowing public policymakers and private entrepreneurs to profitably invest in new energy technologies. We test this theoretical argument against data on public R&D expenditures and patents in the domain of renewable energy technology for industrialized countries from 1989 to 2007. We find strong support for the interactive hypothesis. Thus, we contribute to literatures on (i) domestic responses to international shocks, (ii) environmental sustainability and energy security, and (iii) the political economy of technology innovation. 相似文献
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着力加强四大能力建设努力提升气象为农村改革发展服务水平 总被引：4，自引：0，他引：4
阐述了新时期推进农村改革发展对气象工作提出的新要求,以及农村防灾减灾、保障粮食安全、发展现代农业、农业应对气候变化对气象服务的新需求。面对新要求、新需求,江西气象部门必须坚持以科学发展观为指导,以服务农村经济社会发展和农民福祉安康为宗旨,以提高面向“三农”气象服务能力为核心,加快推进城乡公共气象服务均等化,着力建设发展适应江西省农业防灾减灾、农业应对气候变化、粮食安全保障、社会主义新农村建设需要的现代农业气象业务,着力发展农村公共气象服务,着力提升气象为农服务科技水平,努力实现气象为农村改革发展服务的新突破。 相似文献