GB/T 17215.321-2021 电测量设备（交流） 特殊要求 第21部分：静止式有功电能表 (A级、B级、C级、D级和E级)
文件大小 : 1.29 MB
文档格式 : PDF电子版
文档分类 : 行业标准
更新时间 : 2024-08-17 17:58:43
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/29/57/20/2957205.png): failed to open stream: operation failed in /www/wwwroot/0ppt.com/e/data/tmp/dt_temptext14.php on line 182