YDT1235.2-2002通信局(站)低压配电系统用电涌保护器测试方法.pdf

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1、YD中华人民共和国通信行业标准YD/T1235.2－2002通信局（站）低压配电系统用电涌保护器测试方法TestingMethodsforSurgeProtectiveDevicesConnectedtoLow-voltageDistributionSystemsofTelecommunicationStations/Sites2002－11－8发布2002－11－8实施中华人民共和国信息产业部发布YD/T1235.2－2002目次前言…………………………………………………………………………………………...III1范围……………………………………………………………………………

2、……….12规范性引用文件…………………………………………………………………………….13术语和定义…………………………………………………………………………………….14对试验的一般要求…………………………………………………………………………….44.1一般规定..........................................................................54.2试验条件..........................................................................54.3试

3、验波形..........................................................................55整体质量检查…………………………………………………………………………….65.1外观检查..........................................................................65.2保护模式检查......................................................................65.3分离装置检查.....

4、.................................................................75.4告警检查..........................................................................75.5接线端子连接导线能力的检查........................................................76电涌防护性能试验…………………………………………………………………………….76.1最大持续运行电压试验..................

5、............................................76.2等级限制电压试验..................................................................86.3确定电压保护水平试验..............................................................96.4动作负载试验.....................................................................117安全性能试验………………

6、…………………………………………………………...137.1电气间隙和爬电距离检查...........................................................137.2外壳防护等级试验.................................................................147.3保护接地检查.....................................................................147.4着火危险性试验（灼热丝试验）...............

7、......................................147.5暂时过电压下失效的安全性试验.....................................................157.6暂时过电压耐受特性试验...........................................................157.7SPD热稳定性试验.................................................