QX3-2000-气象信息系统雷击电磁脉冲防护.pdf

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1、33门00IMCs04QX中华人民共和国气象行业标准OX3-2000气象信息系统雷击电磁脉冲防护规范Technicalspecificationsforprotectingthemeteorologicalinformationsystemfromlightningelectromagneticimpulse2000门1一20发布2001一01一01实施中国气象局发布Qx3-2000目次前言···········。·····················。·········。···········。························。··············，·······

2、···········⋯⋯皿1范围······················································································。·······················⋯⋯12引用标准····················。········。························。··········，······································⋯⋯13定义·······················································

3、·····。··················································⋯⋯14防护原则·······························································································。·········⋯⋯35雷电防护区的划分··················。····························。··············。······························⋯⋯36等电位连接和共用接地············

4、·············。。··············································⋯⋯‘，······⋯⋯47屏蔽措施和线缆敷设·························································································⋯⋯78雷击电涌保护··········。························································································⋯⋯99防雷装置的维护和管理·...

5、.........................................................................................13附录A(标准的附录)雷击风险评估方法·····························································⋯⋯“⋯14附录B(标准的附录)雷电流···。·············································································⋯⋯16附录C(标准的附录)电涌保护器(SPD)的选择和安装

6、···························。····················⋯⋯19附录D(标准的附录)环路中感应电压、电流和能量的计算·。···········································⋯⋯25附录E(标准的附录)本规范用词说明·····································································⋯⋯28附录F(提示的附录)全国各主要城市雷暴活动日数(期)···············································一28Qx3-200

7、0前言雷电是一种剧烈的大气现象。雷电压可高达数百万伏特，瞬间电流可高达数百千安培。雷击的电效应、热效应和机械力常造成火灾、建筑物损坏和人身伤亡等灾害。雷击电磁脉冲常对信息系统造成干扰和破坏，对操作人员造成危害特别是近年来随着气象台站的现代化水平的显著提高，大量的自动化仪器、新一代天气雷达、气象卫星通信、卫星接收和传输系统以及大型计算机设备和网络的投人使用，这些信息系统的集成化程度与对雷击敏感度水平