GB/T 20833.4-2021旋转电机绕组绝缘第4部分:绝缘电阻和极化指数测量标准
英文:Rotating electrical machines—The winding insulation—Part 4: Measurement of insulation resistance and polarization ind...
英文:Rotating electrical machines—The winding insulation—Part 4: Measurement of insulation resistance and polarization ind...