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EN 62040-1:2009/FprA1
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Uninterruptible power systems (UPS) - Part 1: General and safety requirements for UPS
Description:
This part of IEC 62040 applies to uninterruptible power systems (UPS) with an electrical energy storage device in the d.c. link. It is used with IEC 60950-1, which is referred to in this standard as "RD" (reference document).
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