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China GB Standards List

 GB/Z 43963-2024  
Guide to determining the values ​​of electrical clearances, creepage distances and solid insulation requirements for equipment with rated voltages above 1000V to 2000V AC and above 1500V to 3000V DC
确定额定电压在交流1000V以上至2000V，直流1500V以上至3000V间设备的电气间隙、爬电距离的数值以及对固体绝缘要求的指南
 GB/Z 37754-2019  
Guidance on clearances and creepage distances in particular for distances equal to or less than 2mm—Test results of research on influencing parameters
关于确定不超过2mm距离的电气间隙和爬电距离的指南 对影响参数进行研究的试验结果
 GB/T 32350.1-2015  
Railway applications—Insulation coordination—Part 1: Basic requirements—Clearances and creepage distances for all electrical and electronic equipment
轨道交通 绝缘配合 第1部分：基本要求 电工电子设备的电气间隙和爬电距离
 GB/Z 24638-2009  
Geometrical product specifications (GPS) - Linear and angular dimensioning and tolerancing: +/- limit specifications - Step dimensions, distances, angular sizes and radii
产品几何技术规范（GPS) 线性和角度尺寸与公差标注+/-极限规范 台阶尺寸、距离、角度尺寸和半径
 GB 23821-2009  
Safety of machinery - Safety distances to prevent hazard zones being reached by upper and lower limbs
机械安全 防止上下肢触及危险区的安全距离
 GB/T 16935.5-2008  
Insulation coordination for equipment within low-voltage systems - Part 5: Comprehensive method for determining clearances and creepage distances equal to or less than 2mm
低压系统内设备的绝缘配合 第5部分：不超过2mm的电气间隙和爬电距离的确定方法
 GB/T 22057.2-2008  
Microscopes - Imaging distances related to mechanical reference planes - Part 2: Infinity-corrected optical systems
显微镜 相对机械参考平面的成像距离 第2部分：无限远校正光学系统
 GB/T 22057.1-2008  
Microscopes - Imaging distances related to mechanical reference planes - Part 1: Tube length 160mm
显微镜 相对机械参考平面的成像距离 第1部分：筒长160mm
 GB/T 19935-2005  
Worm gears-Geometry of worms-Name plates for worm gear units,centre distances,information to be supplied to gear manufacturer by the purchaser
蜗杆传动 蜗杆的几何参数-蜗杆装置的铭牌、中心距、用户提供给制造者的参数

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