CLC/TC 37A
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 52328 | prEN 50XXX | Low-voltage surge protective devices | Izstrādē |
| 78238 | FprEN 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 | Izstrādē |
| 58133 | CLC/prTS 61643-12 | Low-voltage surge protective devices - Part 12: Surge protective devices connected to low-voltage power distribution systems - Selection and application principles | Izstrādē |
| 74389 | FprEN IEC 61643-41:2025 | Low-voltage surge protective devices - Part 41: Surge protective devices connected to DC low-voltage power systems - Requirements and test methods | Izstrādē |
| 55338 | prEN 50539-21 | Low-voltage surge protective devices - Surge protective devices for specific application including d.c. - Part 21: Requirements and tests - Wind turbine applications | Izstrādē |
| 55374 | EN 61643-11:2002/A1 | Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power systems - Requirements and tests | Izstrādē |
| 56544 | FprEN 61643-22 | Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles | Izstrādē |
| 78485 | FprEN IEC 61643-41:2025/FprAA:2025 | Low-voltage surge protective devices - Part 41: Surge protective devices connected to DC low-voltage power systems - Requirements and test methods | Izstrādē |
| 56855 | FprEN 61643-11 | Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power distribution systems - Performance requirements and testing methods | Atcelts |
| 54424 | CLC/TS 61643-12:2006 | Low-voltage surge protective devices - Part 12: Surge protective devices connected to low-voltage power systems - Selection and application principles | Atcelts |
Displaying 21-30 of 67 results.