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

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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-enclosedswitchgearandcontrolgearforratedvoltagesab

2、ove1kVanduptoandincluding52kV,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

3、.1范围..........................................................................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.................................

4、........................................23.101开关设备和控制设备switchgearandcontrolgear...............................23.102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.......

5、......................................................23.105运输单元transportunit.....................................................23.106外壳enclosure..............................................................23.107隔室compartment.........................................

6、...................23.108隔板partition..............................................................33.109隔板的等级partitionclass..................................................33.110活门shutter................................................................33.111分隔（导体的）segr

7、eation(ofconductors)....................................33.112套管bushing................................................................33.113元件component..............................................................33.114主回路（总装的）maincircuit(ofanassembly)................

8、...............43.115接地回路earthingcircuit...................................................43.116辅助回路auxiliarycircuit