CLC/TC 37A
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 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 |
| 70411 | CLC/TS 51643-32:2020 | Low-voltage surge protective devices - Part 32: Surge protective devices connected to the DC side of photovoltaic installations - Selection and application principles | 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 |
| 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 |
| 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 |
| 45201 | prEN 50XXX | Low voltage surge protective devices: surge protective devices for specific application including d.c. - Part X: Requirements and tests | Izstrādē |
| 52328 | prEN 50XXX | Low-voltage surge protective devices | Izstrādē |
| 70096 | prEN IEC 61643-11 | Low-voltage surge protective devices - Part 11: Surge protective devices connected to AC low-voltage power systems - Requirements and test methods | Izstrādē |
| 78484 | FprEN IEC 61643-11:2025/FprAA:2025 | Low-voltage surge protective devices - Part 11: Surge protective devices connected to AC 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 |
Displaying 21-30 of 67 results.