GB/T 17215.831-2017 交流电测量设备验收检验第31部分∶静止式有功电能表的特殊要求（0.2S级、0.5S级、1级和2级）
文件大小 : 759.57 KB
文档格式 : PDF电子版
文档分类 : 国家标准
更新时间 : 2023-12-27 17:46:00
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/61/10/71/61107139.png): failed to open stream: operation failed in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182