IEC 62271-105:2021
Current
The latest, up-to-date edition.
High-voltage switchgear and controlgear - Part 105: Alternating current switch-fuse combinations for rated voltages above 1 kV up to and including 52 kV
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15-06-2021
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IEC 62271-105:2021 applies to three-pole units for public and industrial distribution systems which are functional assemblies of switches composed of switches or switch-disconnectors and current-limiting fuses designed so as to be capable of
- breaking, at the rated voltage, any current up to and including the rated short-circuit breaking current;
- making, at the rated voltage, circuits to which the rated short-circuit breaking current applies.
This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- the document has been updated to be in alignment with the second edition of IEC 62271-1:2017;
- rated TRV has been removed (TRV is only a test parameter), as in the latest revision of IEC 62271-100;
- differentiation has been introduced between requirements expressed for fulfilling the function expected from a switch-fuse combination, from requirements only relevant when the function is performed by a stand-alone device. The goal is to avoid duplication or conflicts of requirements with a standard dealing with assemblies, when the function is implemented within such an assembly.
| Committee |
TC 17/SC 17A
|
| DocumentType |
Standard
|
| Pages |
106
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| VDE 0671-105:2024-05 | Identical |
| DIN EN IEC 62271-105:2024-05 | Identical |
| CEI EN IEC 62271-105:2024 | Identical |
| PN-EN IEC 62271-105:2024-04 | Identical |
| OVE EN IEC 62271-105:2024 06 01 | Identical |
| DS/EN IEC 62271-105:2023 | Identical |
| IS/IEC 62271 : Part 105 : 2021 | Identical |
| NF EN IEC 62271-105:2023 | Identical |
| UNE-EN IEC 62271-105:2024 | Identical |
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