CLC/SR 37B
| Registration number (WIID) | Project No. | Title | Status |
|---|---|---|---|
| 68047 | EN IEC 61643-341:2020 | Components for low-voltage surge protection - Part 341: Performance requirements and test circuits for thyristor surge suppressors (TSS) | Izstrādē |
| 68047 | LVS EN IEC 61643-341:2020 | Components for low-voltage surge protection - Part 341: Performance requirements and test circuits for thyristor surge suppressors (TSS) | Standarts spēkā |
| 68389 | prEN IEC 61643-321 | Components for low-voltage surge protective devices - Part 321: Performance requirements and test circuits for silicon PN-junction voltage limiters | Izstrādē |
| 68390 | EN IEC 61643-331:2020 | Components for low-voltage surge protection - Part 331: Performance requirements and test methods for metal oxide varistors (MOV) | Standarts spēkā |
| 68390 | LVS EN IEC 61643-331:2020 | Components for low-voltage surge protection - Part 331: Performance requirements and test methods for metal oxide varistors (MOV) | Standarts spēkā |
| 69041 | prEN IEC 61643-322:2019 | Components for low-voltage surge protection - Part 322: Selection and application principles for silicon pn-junction voltage limiters | Aptauja slēgta |
| 72019 | EN IEC 61643-332:2024 | Components for low-voltage surge protection - Part 332: Selection and application principles for metal oxide varistors (MOV) | Standarts spēkā |
| 72019 | LVS EN IEC 61643-332:2024 | Components for low-voltage surge protection - Part 332: Selection and application principles for metal oxide varistors (MOV) | Standarts spēkā |
| 79126 | EN IEC 61643-361:2026 | Low-voltage surge protective devices - Part 361: Surge isolation transformers (SITs) connected to low-voltage distribution system - Requirements and test methods | Izstrādē |
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