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IEC 61660-1 CORR 1-1999 Short-circuit currents in d.c auxiliary installations in power plants and substations - Part 1 Calculation of short-circuit currents《电厂与变电站直流辅助设备中的短路电流.第1部分 短路电流的计算》.pdf 3

IEC 61660-1 CORR 1-1999 Short-circuit currents in d.c auxiliary installations in power plants and substations - Part 1 Calculation of short-circuit currents《电厂与变电站直流辅助设备中的短路电流.第1部分 短路电流的计算》.pdfIEC 61660-1 CORR 1-1999 Short-circuit currents in d.c auxiliary installations in power plants and substations - Part 1 Calculation of short-circuit currents《电厂与变电站直流辅助设备中的短路电流.第1部分 短路电流的计算》.pdf

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IEC 61649-2008 Weibull analysis《Weibull分析》.pdf 142

IEC 61649-2008 Weibull analysis《Weibull分析》.pdfIEC 61649-2008 Weibull analysis《Weibull分析》.pdf

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IEC 61643-341-2001 Components for low-voltage surge protective devices - Part 341 Specification for thyristor surge suppressors (TSS)《低压浪涌保护装置用元件 第341部分：晶闸管浪涌抑制器（TSS）规范》.pdf 132

IEC 61643-341-2001 Components for low-voltage surge protective devices - Part 341 Specification for thyristor surge suppressors (TSS)《低压浪涌保护装置用元件 第341部分：晶闸管浪涌抑制器（TSS）规范》.pdfIEC 61643-341-2001 Components for low-voltage surge protective devices - Part 341 Specification for thyristor surge suppressors (TSS)《低压浪涌保护装置用元件 第341部分：晶闸管浪涌抑制器（TSS）规范》.pdf

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IEC 61284-1997 Overhead lines - Requirements and tests for fitting《架空线路 安装要求和试验》.pdf 141

IEC 61284-1997 Overhead lines - Requirements and tests for fitting《架空线路 安装要求和试验》.pdfIEC 61284-1997 Overhead lines - Requirements and tests for fitting《架空线路 安装要求和试验》.pdf

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IEC 61280-4-1-2009 Fibre-optic communication subsystem test procedures - Part 4-1 Installed cable plant - Multimode attenuation measurement《光纤通信子系统测试程序.第4-1部分 电缆线路设备安装.多模衰减测量》.pdf 130

IEC 61280-4-1-2009 Fibre-optic communication subsystem test procedures - Part 4-1 Installed cable plant - Multimode attenuation measurement《光纤通信子系统测试程序.第4-1部分 电缆线路设备安装.多模衰减测量》.pdfIEC 61280-4-1-2009 Fibre-optic communication subsystem test procedures - Part 4-1 Installed cable plant - Multimode attenuation measurement《光纤通信子系统测试程序.第4-1部分 电缆线路设备安装.多模衰减测量》.pdf

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IEC 61280-2-8-2003 Fibre optic communication subsystem test procedures - Digital systems - Part 2-8 Determination of low BER using Q-factor measurements《光纤通信子系统基本试验过程.数字系统.第2-8部分 用品质因数测量法测定低位错率》.pdf 66

IEC 61280-2-8-2003 Fibre optic communication subsystem test procedures - Digital systems - Part 2-8 Determination of low BER using Q-factor measurements《光纤通信子系统基本试验过程.数字系统.第2-8部分 用品质因数测量法测定低位错率》.pdfIEC 61280-2-8-2003 Fibre optic communication subsystem test procedures - Digital systems - Part 2-8 Determination of low BER using Q-factor measurements《光纤通信子系统基本试验过程.数字系统.第2-8部分 用品质因数测量法测定低位错率》.pdf

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IEC 61280-2-3-2009 Fibre optic communication subsystem test procedures - Part 2-3 Digital systems - Jitter and wander measurements《光纤通信子系统的试验程序.第2-3部分 数字系统.抖动和漂移测量》.pdf 88

IEC 61280-2-3-2009 Fibre optic communication subsystem test procedures - Part 2-3 Digital systems - Jitter and wander measurements《光纤通信子系统的试验程序.第2-3部分 数字系统.抖动和漂移测量》.pdfIEC 61280-2-3-2009 Fibre optic communication subsystem test procedures - Part 2-3 Digital systems - Jitter and wander measurements《光纤通信子系统的试验程序.第2-3部分 数字系统.抖动和漂移测量》.pdf

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IEC 61280-2-12-2014 Fibre optic communication subsystem test procedures - Part 2-12 Digital systems - Measuring eye diagrams and Q-factor using a software triggering technique for .pdf 44

IEC 61280-2-12-2014 Fibre optic communication subsystem test procedures - Part 2-12 Digital systems - Measuring eye diagrams and Q-factor using a software triggering technique for .pdfIEC 61280-2-12-2014 Fibre optic communication subsystem test procedures - Part 2-12 Digital systems - Measuring eye diagrams and Q-factor using a software triggering technique for .pdf

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IEC 61156-8 Edition 1.1-2013 Multicore and symmetrical pair quad cables for digital communications - Part 8 Symmetrical pair quad cables with transmission characteristics up to 120.pdf 22

IEC 61156-8 Edition 1.1-2013 Multicore and symmetrical pair quad cables for digital communications - Part 8 Symmetrical pair quad cables with transmission characteristics up to 120.pdfIEC 61156-8 Edition 1.1-2013 Multicore and symmetrical pair quad cables for digital communications - Part 8 Symmetrical pair quad cables with transmission characteristics up to 120.pdf

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IEC 61156-7-2003 Multicore and symmetrical pair quad cables for digital communications - Part 7 Symmetrical pair cables with transmission characteristics up to 1200 MHz Sectional s.pdf 36

IEC 61156-7-2003 Multicore and symmetrical pair quad cables for digital communications - Part 7 Symmetrical pair cables with transmission characteristics up to 1200 MHz Sectional s.pdfIEC 61156-7-2003 Multicore and symmetrical pair quad cables for digital communications - Part 7 Symmetrical pair cables with transmission characteristics up to 1200 MHz Sectional s.pdf

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