NOTE 1 Throughout this part, the abbreviation PSC-ASSEMBLY (see 3.1 .1 01 ) is used for a power switchgear and controlgear ASSEMBLY.
This part of IEC 61 439 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; NOTE 2 Supplementary requirements for ASSEMBLIES in ships are covered by IEC 60092-302.
– ASSEMBLIES designed for electrical equipment of machines. Supplementary requirements for ASSEMBLIES forming part of a machine are covered by the IEC 60204
series.
