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IEC 60478-4 1st Edition, January 1, 1976
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Stabilized power supplies, d.c. output Part 4: Tests other than radio-frequency interference
Additional Comments: BILINGUAL *** W/D NO S/S ***
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This standard applies to stabilized power supplies designed to supply d.c. power from an a.c. or d.c. source for applications such as, but not necessarily limited to, the following:

— computers;

— telecommunications;

— laboratories;

— industrial equipment.

Calibrated stabilized power supplies for electrical measurement purposes are excluded from the scope of this publication.