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| Chinese National Standard Category: Electric rotating machinery in general |
| English Title: | Insulation specification for frequency conversion machine |
| Chinese Title: | 变频调速电机绝缘规范 |
| Standard No.: | GB/T 21707-2025 |
| Category No.: | K20 |
| Issued by: | SAMR; SAC |
| Issued on: | 2025-05-30 |
| Implemented on: | 2025-12-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | GB/T 21707-2018 Insulation specification for variable frequency adjustable speed definite purpose converter-fed three-phase induction motors |
| Word Count: | 17000 words |
| Similar Standards: | GB/T 755-2025 GB/T 20833.2-2025 GB/T 21209-2025 GB/T 21707-2025 GB/T 17948.7-2025 GB/T 14711-2025 T/DZJN 434-2025 GB/T 22671-2024 GB/T 20834-2024 GB/T 20835-2024 GB/T 17948.4-2024 GB/T 10069.3-2024 DB14/T 3028-2024 GB/T 29326-2023 DL/T 970-2023 GB/T 7409.4-2023 GB/Z 20833.5-2023 GB/Z 43036-2023 T/CAPE 11004-2023 GB/T 13958-2022 |
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