防雷器的主要技术参数
<p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><font size=3></font></span> </p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><font size=3><span lang=EN-US><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．标称电压</span></font><font size=3><span lang=EN-US><font face="Times New Roman">Un <br /></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">与被保护系统的额定电压相符，在信息技术系统中此参数表明了应该选用的保护器的类型，它标出交流或直流电压的有效值。</span><span lang=EN-US><font face="Times New Roman"> </font></span></font></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><font size=3><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </span><span lang=EN-US><font face="Times New Roman">2</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．额定电压</span></font><font size=3><span lang=EN-US><font face="Times New Roman">Uc <br /></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">能长久施加在保护器的指定端，而不引起保护器特性变化和激活保护元件的最大电压有效值。</span><span lang=EN-US><font face="Times New Roman"> </font></span></font></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><font size=3><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </span><span lang=EN-US><font face="Times New Roman">3</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．额定放电电流</span></font><font size=3><span lang=EN-US><font face="Times New Roman">Isn <br /></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">给保护器施加波形为</span><span lang=EN-US><font face="Times New Roman">8/20μs</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的标准雷电波冲击</span><span lang=EN-US><font face="Times New Roman">10</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">次时，保护器所耐受的最大冲击电流峰值。</span><span lang=EN-US><font face="Times New Roman"> </font></span></font></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><font size=3><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </span><span lang=EN-US><font face="Times New Roman">4</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．最大放电电流</span></font><font size=3><span lang=EN-US><font face="Times New Roman">Imax <br /></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">给保护器施加波形为</span><span lang=EN-US><font face="Times New Roman">8/20μs</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的标准雷电波冲击</span><span lang=EN-US><font face="Times New Roman">1</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">次时，保护器所耐受的最大冲击电流峰值。</span><span lang=EN-US><font face="Times New Roman"> </font></span></font></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><font size=3><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </span><span lang=EN-US><font face="Times New Roman">5</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．电压保护级别</span></font><font size=3><span lang=EN-US><font face="Times New Roman">Up <br /></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">保护器在下列测试中的最大值：</span><span lang=EN-US><font face="Times New Roman">1KV/μs</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">斜率的跳火电压；额定放电电流的残压。</span><span lang=EN-US><font face="Times New Roman"> </font></span></font></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><font size=3><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </span><span lang=EN-US><font face="Times New Roman">6</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．响应时间</span></font><font size=3><span lang=EN-US><font face="Times New Roman">tA <br /></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">主要反应在保护器里的特殊保护元件的动作灵敏度、击穿时间，在一定时间内变化取决于</span><span lang=EN-US><font face="Times New Roman">du/dt</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">或</span><span lang=EN-US><font face="Times New Roman">di/dt</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的斜率。</span><span lang=EN-US><font face="Times New Roman"> </font></span></font></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><font size=3><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </span><span lang=EN-US><font face="Times New Roman">7</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．数据传输速率</span></font><font size=3><span lang=EN-US><font face="Times New Roman">Vs <br /></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">表示在一秒内传输多少比特值，单位：</span><span lang=EN-US><font face="Times New Roman">bps</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">；是数据传输系统中正确选用防雷器的参考值，防雷保护器的数据传输速率取决于系统的传输方式。</span><span lang=EN-US><font face="Times New Roman"> </font></span></font></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><font size=3><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </span><span lang=EN-US><font face="Times New Roman">8</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．插入损耗</span></font><font size=3><span lang=EN-US><font face="Times New Roman">Ae <br /></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在给定频率下保护器插入前和插入后的电压比率。</span><span lang=EN-US><font face="Times New Roman"> </font></span></font></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><font size=3><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </span><span lang=EN-US><font face="Times New Roman">9</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">．回波损耗</span></font><font size=3><span lang=EN-US><font face="Times New Roman">Ar <br /></font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">表示前沿波在保护设备（反射点）被反射的比例，是直接衡量保护设备同系统阻抗是否兼容的参数</span><span lang=EN-US><font face="Times New Roman"> </font></span></font></p><p class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><span lang=EN-US><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p><font face="Times New Roman" size=3> </font></o:p></span></p> 很好学习中！！！
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