CLC/TC 37A
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 48601 | CLC/TS 50544:2010 | Low voltage d.c. surge protective device for traction systems - Selection and application rules for surge arresters | Atcelts |
| 57264 | EN 50539-11:2013/A1:2014 | Low-voltage surge protective devices - Surge protective devices for specific application including d.c. - Part 11: Requirements and tests for SPDs in photovoltaic applications | Atcelts |
| 82820 | prEN IEC 61643-31:2025 | Low-voltage surge protective devices - Part 31: Requirements and test methods for SPDs for photovoltaic installations | Aptauja slēgta |
| 78484 | EN IEC 61643-11:2025/A11:2025 | Low-voltage surge protective devices - Part 11: Surge protective devices connected to AC low-voltage power systems - Requirements and test methods | Standarts spēkā |
| 78485 | LVS EN IEC 61643-41:2025/A11:2025 | Low-voltage surge protective devices - Part 41: Surge protective devices connected to DC low-voltage power systems - 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 |
| 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 |
| 78238 | LVS EN IEC 61643-11:2025 | Low-voltage surge protective devices - Part 11: Surge protective devices connected to AC low-voltage power systems - Requirements and test methods | Standarts spēkā |
| 78485 | EN IEC 61643-41:2025/A11:2025 | Low-voltage surge protective devices - Part 41: Surge protective devices connected to DC low-voltage power systems - Requirements and test methods | Standarts spēkā |
| 78484 | LVS EN IEC 61643-11:2025/A11:2025 | Low-voltage surge protective devices - Part 11: Surge protective devices connected to AC low-voltage power systems - Requirements and test methods | Standarts spēkā |
Displaying 51-60 of 78 results.