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4331+ standards in database
4331 result(s) found
电气绝缘材料和系统 瞬时上升和重复电压冲击条件下的局部放电（PD）电气测量
Electrical insulating materials and systems—Electrical measurement of partial discharges(PD) under short rise time and repetitive voltage impulses
数字通信用对绞或星绞多芯对称电缆 第1部分：总规范
Multicore and symmetrical pair/quad cables for digital communications—Part 1: Generic specification
电气绝缘材料 确定电离辐射的影响 第4部分：运行中老化的评定程序
Electrical insulating materials—Determination of the effects of ionizing radiation—Part 4：Procedures for assessment of ageing in service
电气绝缘材料 确定电离辐射的影响 第1部分：辐射相互作用和剂量测定
Electrical insulating materials—Determination of the effects of ionizing radiation—Part 1：Radiation interaction and dosimetry
轨道交通 电磁兼容 第3-2部分：机车车辆 设备
Railway applications—Electromagnetic compatibility—Part 3-2：Rolling stock—Apparatus
轨道交通 电磁兼容 第2部分：整个轨道系统对外界的发射
Railway applications—Electromagnetic compatibility—Part 2: Emission of the whole railway system to the outside world
电气简图用图形符号 第5部分：半导体管和电子管
Graphical symbols for electrical diagrams—Part 5：Semiconductors and electron tubes
电气简图用图形符号 第4部分：基本无源元件
Graphical symbols for electrical diagrams—Part 4: Basic passive components
电气简图用图形符号 第3部分: 导体和连接件
Graphical symbols for electrical diagrams—Part 3：Conductors and connecting devices
电气简图用图形符号 第2部分: 符号要素、限定符号和其他常用符号
Graphical symbols for electrical diagrams—Part 2：Symbol elements,qualifying symbols and other symbols having general application
电气简图用图形符号 第1部分：一般要求
Graphical symbols for electrical diagrams—Part 1：General information
输电线路铁塔制造技术条件
Specification of manufacturing for transmission line tower
旋转电机（牵引电机除外）确定损耗和效率的试验方法
Standard methods for determining losses and efficiency of rotation electrical machines from tests（excluding machines for traction vehicles）
变频器供电三相笼型感应电动机试验方法
Test procedures for converter-fed three phase cage induction motors
硅单晶切割片和研磨片
Monocrystalline silicon as cut wafers and lapped wafers
牵引用铅酸蓄电池 第1部分：技术条件
Lead-acid traction batteries—Part 1：Technical conditions
干式非晶合金铁心配电变压器技术参数和要求
Specifications and technical requirements for dry-type amorphous alloy core distribution transformers
炭素材料抗拉强度测定方法
The test method for tensile strength of carbon materials
炭素材料耐压强度测定方法
The test method for compressive strength of carbon materials
三相永磁同步电动机技术条件（机座号 80～355）
Specification for three-phase permanent magnet synchronous motors(frame size 80～355)