CLC/TC 37A
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 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 |
| 56914 | CLC/prTS 50XXX | Low voltage surge protective devices: surge protective devices for specific application including d.c. - Part Y: Selection and application rules | Izstrādē |
| 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 | Izstrādē |
| 51669 | 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 | Izstrādē |
| 63349 | FprEN 61643-31:2017/FprAA:2017 | Low-voltage surge protective devices - Part 31: Surge protective devices connected to the d.c. side of photovoltaic installations - Requirements and test methods | Izstrādē |
| 49355 | CLC/TS 61643-22:2016 | Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles | Izstrādē |
| 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 |
| 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 |
Displaying 11-20 of 67 results.