Low-voltage switchgear and controlgear assemblies - Part 2: Power switchgear and controlgear assemblies
IEC 61439-2:2011 defines the specific requirements of power switchgear and controlgear assemblies (PSC-ASSEMBLIES) as follows: - ASSEMBLIES for which the rated voltage does not exceed 1 000 V in case of a.c. or 1 500 V in case of d.c. - stationary or movable ASSEMBLIES with or without enclosure - ASSEMBLIES intended for use in connection with the generation, transmission, distribution and conversion of electric energy, and for the control of electric energy consuming equipment - ASSEMBLIES designed for use under special service conditions, for example in ships and in rail vehicles provided that the other relevant specific requirements are complied with - ASSEMBLIES designed for electrical equipment of machines. Supplementary requirements for ASSEMBLIES forming part of a machine are covered by the IEC 60204 series. This second edition cancels and replaces the first edition published in 2009. It constitutes a technical revision. This second edition includes the following significant technical changes with respect to the last edition of IEC 61439-2: - clarification of the scope - revision of requirements for withdrawable and removable parts - revision of mechanical impact test (10.2.6) - extension of Table 101 - review of Table BB.1 to reflect modified requirements and verifications - general editorial review. This publication is to be read in conjunction with < a href=' http:/ / webstore.iec.ch/ webstore/ webstore.nsf/ ArtNum_PK/ 42502' > IEC 61439-1:2009< / a> .
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