CLC/TC 37A
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 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 |
| 52328 | prEN 50XXX | Low-voltage surge protective devices | Izstrādē |
| 45201 | prEN 50XXX | Low voltage surge protective devices: surge protective devices for specific application including d.c. - Part X: Requirements and tests | Izstrādē |
| 42584 | prEN 61643-2 | Surge protective devices connected to low-voltage power distribution systems - Part 2: Selection and application principles | 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 |
| 78239 | prEN IEC 61643-11:2023 {frag 2} | Voltage surge protective devices - Part 11: Surge protective devices connected to AC low-voltage power systems - Requirements and test methods | Izstrādē |
| 74730 | prEN IEC 61643-21:2024 | Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Requirements and testing methods | Aptauja slēgta |
Displaying 61-67 of 67 results.