Browse Standards
4331+ standards in database
4331 result(s) found
新型照明产品的分类与解释
Classification and interpretation of new lighting products
红斑基准反应光谱及标准红斑剂量
Erythema reference action spectrum and standard erythema dose
日光的空间分布 CIE一般标准天空
Spatial distribution of daylight-CIE standard general sky
调速电气传动系统 第4部分:一般要求 交流电压1000V以上但不超过35kV的交流调速电气传动系统额定值的规定
Adjustable speed electrical power drive systems - part 4: General requirements - Rating specifications for a.c. power drive systems above 1000V a.c. and not exceeding 35kV
旋转电机绝缘电阻测试
Recommended Practice for Testing Insulation Resistance of Rotating Machinery
电工电子产品着火危险试验 第20部分:火焰表面蔓延 试验方法概要和相关性
Fire hazard testing for electric and eletronic products - Part 20: Surface spread of flame - Summary and relevance of test methods
额定电压450/750V及以下聚氯乙烯绝缘电缆 第6部分:电梯电缆和挠性连接用电缆
Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V Part 6: Lift cables and cables for flexible connections
旋转电机噪声测定方法及限值 第1部分：旋转电机噪声测定方法
Measurement of airborne noise emitted by rotating electrical machines and the noise limits Part 1: Method for the measurement of airborne noise emitted by rotating electrical machines
旋转电机噪声测定方法及限值 第3部分：噪声限值
Measurement of airborne noise emitted by rotating electrical machines and the noise limits―Part 3: Noise limits
可燃性粉尘环境用电气设备 第1部分：用外壳和限制表面温度保护的电气设备 第2节：电气设备的选择、安装和维护
Electrical apparatus for use in the presence of combustible dust―Part 1-2: Electrical apparatus protected by enclosures and surface temperature limitation―Selection, installation and maintenance
电气技术用文件的编制 第5部分：索引
Preparation of documents used in electrotechnology - Part 5: Index
静止无功补偿装置(SVC)现场试验
Static Var Compensator field tests
电气绝缘用薄膜 第6部分：电气绝缘用聚酰亚胺薄膜
Film for electrical insulation - Part 6: Polyimide films for electrical insulation
区熔锗锭
Zone-refined germanium ingot
还原锗锭
Reduced germanium ingot
3.6kV～40.5kV交流金属封闭开关设备和控制设备
Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
低压成套开关设备和控制设备 第2部分：对母线干线系统（母线槽）的特殊要求
Low-voltage switchgear and controlgear assemblies - Part 2: Particular requirements for busbar trunking systems(busways)
人机界面标志标识的基本和安全规则 导体的颜色或数字标识
Basic and safety principles for man-machine interface, marking and identification - Identification of conductors by colours or numerals
电力变压器、电源装置和类似产品的安全 第6部分：剃须刀用变压器和剃须刀用电源装置的特殊要求
Safety of power transformers, power supply units and similar - Part 6: Particular requirements for shaver transformers and shaver supply units
中小型旋转电机安全要求
Safety requirements of small and medium size rotating electrical machines