CLC/TC 37A
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 42274 | EN 61643-21:2001/A1:2009 | Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods | Standarts spēkā |
| 62425 | LVS EN 61643-31:2019 | Low-voltage surge protective devices - Part 31: Requirements and test methods for SPDs for photovoltaic installations | Standarts spēkā |
| 44037 | EN 61643-21:2001/A2:2013 | Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods | Standarts spēkā |
| 76277 | LVS EN 61643-31:2019/AC:2022 | Low-voltage surge protective devices - Part 31: Requirements and test methods for SPDs for photovoltaic installations | Standarts spēkā |
| 51669 | LVS CLC/TS 50539-22:2010 | Low-voltage surge protective devices - Surge protective devices for specific application including d.c. - Part 22: Selection and application principles - Wind turbine applications | Standarts spēkā |
| 74730 | LVS EN IEC 61643-21:2026 | Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Requirements and test methods | Standarts spēkā |
| 74730 | EN IEC 61643-21:2026 | Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Requirements and test methods | Standarts spēkā |
| 55435 | LVS CLC/TS 61643-12:2010 | Low-voltage surge protective devices -- Part 12: Surge protective devices connected to low-voltage power distribution systems - Selection and application principles (IEC 61643-12:2008, modified) | Standarts spēkā |
| 49316 | LVS CLC/TR 50656:2016 | SPD application in conjunction with Class II equipment | Standarts spēkā |
| 47416 | EN 61643-21:2001 | Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods | Standarts spēkā |
Displaying 71-80 of 80 results.