YDT694-2004总配线架.pdf

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1、icsM4011l中华人民共和国通信行业标准YD/T694-2004代替YD/T694-1999总配线架Maindistributionframe2004-06-22发布2004-09-01实施中华人民共和国信息产业部发布YD,厅694-2004目次前言·····················································································································⋯⋯n1范围································.·················

2、················································。·················⋯⋯12规范性引用文件··························································································。···········⋯⋯13术语和定义····································································⋯⋯“·”··⋯‘·⋯’‘·‘”’⋯⋯“‘’‘’·“’二14产品分类··········

3、·····································································································⋯⋯25要求·····································································································.··············⋯⋯46试验方法······························································。······

4、············。·····························⋯⋯87检验规则············································································································⋯⋯188标志、包装、运输和贮存·························。·····························································⋯⋯21附录A(规范性附录)保安单元(部分)技术要求和试验方法········

5、··································⋯⋯22附录B(规范性附录)试验用的模拟负载·····································································⋯⋯24附录C(资料性附录)总配线架的地线·.............................................................................25附录D(资料性附录)总配线架用梯子···············································。·········

6、···············⋯⋯26丫D/T694-2004前言本标准是根据ITU-TK.11(1993)《过电压过电流防护原则》、ITU-TK.20(2000)《安装在电信中心的电信设备耐过电压和过电流的能力》、ITU-TK.45(2000)(接人网设备耐过电压和过电流能力》和我国实际应用情况进行修订的。本标准代替YD/T694-1999《总配线架》。本标准与YD/T694-1999相比，主要变化如下:—增加了过电压、过电流保护器件的要求(见5.4.2);—修改了过电压、过电流防护性能要求中电力线感应试验和电力线接触试验的试验参数以及各级合格判定(1999版5.5.6;本版5.4.7);—

7、修改了不动作电流的要求(1999版5.5.9;本版5,4.9);—修改了限流特性的要求(1999版5.5.10;本版5.4.10);—增加了过电流热稳定性测试(见5.4.12);—增加了不动作电压测试(见5.4.14);—增加了对地电容测试(见5.4.16);—删去了交流寿命测试(1999版附录A1.3;本版A1.2);—删去了使用有放射物质气体放电管保安单元的附加要求(1999版附录B);—增加