GB/T 22720.2-2019 旋转电机电压型变频器供电的旋转电机耐局部放电电气绝缘结构 (II型)的鉴定试
文件大小 : 3461.89 KB
文档格式 : PDF电子版
文档分类 : 国家标准
更新时间 : 2024-01-05 14:04:33
Warning: get_headers(): SSL operation failed with code 1. OpenSSL Error messages:
error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182
Warning: get_headers(): Failed to enable crypto in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182
Warning: get_headers(https://img.0ppt.com/61/10/26/61102699.png): failed to open stream: operation failed in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182