Browse Standards
4331+ standards in database
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轨道交通 受流系统 受电弓与接触网相互作用准则
Railway applications—Current collection systems—Technical criteria for the interaction between pantograph and overhead contact line
量度继电器和保护装置 第187-1部分：差动保护的功能要求 电动机、发电机和变压器比率制动差动保护和差动速断保护
Measuring relays and protection equipment—Part 187-1: Functional requirements for differential protection—Restrained and unrestrained differential protection of motors, generators and transformers
电工圆铜线
Round copper wire for electrical purposes
爆炸性环境 第18部分：本质安全电气系统
Explosive atmospheres—Part 18: Intrinsically safe electrical systems
绝缘配合 第14部分：高压直流系统AC/DC滤波器绝缘配合
Insulation co-ordination—Part 14: Insulation co-ordination for AC/DC filters of HVDC system
蓝宝石图形化衬底片
Patterned sapphire substrate
晶闸管控制串联电容器（TCSC）用晶闸管阀 电气试验
Thyristor valves for thyristor controlled series capacitors （TCSC）—Electrical testing
用户供电可靠性评价指标导则
Guides for reliability evaluation indices of customer power supply service
城市光环境景观照明设施运行维护服务规范
Specification for operation and maintenance of urban luminous environment landscape lighting facilities
交流1 kV以上架空输电和配电线路用带外串联间隙金属氧化物避雷器（EGLA）
Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV
轨道交通 机车车辆变流设备 市域铁路和城轨交通车辆辅助变流器
Railway applications—Converter onboard rolling stock—Auxiliary converters for suburban railway and urban rail transit vehicles
城际磁浮交通 中低速磁浮地面设备 牵引供电系统
Intercity maglev traffic—Fixed installations of medium and low speed maglev—Traction power supply system
磁性氧化物制成的磁心机械强度测试方法
Test method for the mechanical strength of cores made of magnetic oxides
爆炸性环境用气体探测器 第2部分：可燃气体和氧气探测器的选型、安装、使用和维护
Gas detectors for explosive atmospheres—Part 2: Selection，installation，use and maintenance of detectors for flammable gases and oxygen
爆炸性环境 电阻式伴热器 第1部分：通用和试验要求
Explosive atmospheres—Electrical resistance traces heating—Part 1: General and testing requirements
无刷直流力矩电动机通用技术条件
General specification for brushless DC torque motors
基础机电继电器 第2-1部分：可靠性 B10值验证程序
Electromechanical elementary relays—Part 2-1: Reliability—Procedure for the verification of B10 values
基础机电继电器 第2部分：可靠性
Electromechanical elementary relays—Part 2: Reliability
锂离子电池和电池组能源转换效率要求和测量方法
Energy conversion efficiency requirements and measurement methods for lithium ion cells and batteries
含碱性或其他非酸性电解质的蓄电池和蓄电池组 便携式密封蓄电池和蓄电池组 第2部分：金属氢化物镍电池
Secondary cells and batteries containing alkaline or other non-acid electrolytes—Secondary sealed cells and batteries for portable applications—Part 2: Nickel-metal hydride