 |
Chinese Classification
Professional Classification
ICS Classification
Latest
Value-added Services
|
| Chinese National Standard Category: Electric rotating machinery in general |
| English Title: | Rotating electrical machines—The winding insulation—Part 4: Measurement of insulation resistance and polarization index |
| Chinese Title: | 旋转电机 绕组绝缘 第4部分：绝缘电阻和极化指数测量 |
| Standard No.: | GB/T 20833.4-2021 |
| Category No.: | K20 |
| Issued by: | SAMR; SAC |
| Issued on: | 2021-03-09 |
| Implemented on: | 2021-10-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 18500 words |
| Similar Standards: | GB 4706.20-1988 GB 4706.26-1991 GB 4706.24-1991 JB/T 3140-1982 JB/T 5888-1991 CNCA 01C-013-2007 GB 9926-1988 T/CI 173-2023 GB 4706.19-1988 GB 13232-1991 GB 4706.28-1992 GB/T 4720-1984 GB/T 29326-2023 GB/Z 43036-2023 GB/T 7409.4-2023 GB/Z 20833.5-2023 GB/T 13958-2022 GB/T 21205-2022 GB/T 25292-2022 GB/T 997-2022 |
| Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886 |
| Copyright: Foryou Tech Co., Ltd. 2008-2020 |