IEC-60947-6-1 Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment

IEC-60947-6-1 - EDITION 3.0 - CURRENT
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IEC 60947-6-1:2021 applies to transfer switching equipment (TSE), to be used in power systems for ensuring the continuity of the supply and allowing the energy management of the installation, by transferring a load between power supply sources, the rated voltage of which does not exceed 1 000 V AC or 1 500 V DC.
This third edition cancels and replaces the second edition published in 2005, and its Amendment 1:2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
. clarification of scope and object;
. clarification of terms and definitions;
. removal of unnecessary definitions;
. modification of characteristics;
. modification of utilization categories definitions;
. introduction of new markings requirements;
. addition of new requirements for clearances and creepage distances;
. addition of new requirements and tests for mechanical and electrical interlocks;
. clarification of transfer sequences;
. modification of requirements for rated short-time withstand currents;
. modification of new requirements for electromagnetic compatibility;
. clarification of performance requirements for CB type TSE, in alignment with requirements stated in IEC 60947-2;
. addition of new test sequence V: Critical load current performance of equipment with DC ratings.
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29.120.40 (Switches)

29.130.20 (Low voltage switchgear and controlgear Including switchgear and controlgear assemblies)

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Document Number

IEC 60947-6-1 Ed. 3.0 b:2021

Revision Level

EDITION 3.0

Status

Current

Publication Date

March 1, 2021

Committee Number

121A