《DLT404-20073.6kV～40.5-kV交流金属封闭开关设备和控制设备》.pdf

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1、DL中华人民共和国电力行业标准DL/T404-2007代替DL/T404-19973.6kV～40.5kV交流金属封闭开关设备和控制设备Alternating-Currentmetal-enclosedSwitchgearandcontrolgearforratedvoltagesabove3.6kVanduptoandincluding40.5kV（IEC62271-200:2003Alternating-Currentmetal-enclosedswitchgearandcontrolgearforratedvoltagesabove1kVanduptoandin

2、cluding52kV,MOD）2007－12－11发布2008－06－01实施www.bzfxw.com中华人民共和国国家发展和改革委员会发布DL/T404-2007目次前言..............................................................................V1概述...............................................................................11.1范围................................

3、..........................................11.2规范性引用文件................................................................12正常和特殊使用条件.................................................................23术语和定义.........................................................................23.101开关设备和控制设

4、备switchgearandcontrolgear...............................2www.17jzw.com3.102金属封闭开关设备和控制设备metal-enclosedswitchgearandcontrolgear........23.103功能单元（总装的）functionalunit(ofanassembly)..........................23.104多层multi-tier.............................................................23.10

5、5运输单元transportunit.....................................................23.106外壳enclosure..............................................................23.107隔室compartment............................................................23.108隔板partition.........................................

6、.....................33.109隔板的等级partitionclass....................................www.17bzw.cn..............33.110活门shutter................................................................33.111分隔（导体的）segreation(ofconductors)....................................33.112套管bushing............

7、....................................................33.113元件component..............................................................33.114主回路（总装的）maincircuit(ofanassembly)...............................43.115接地回路earthingcircuit...................................................4