APC DU0-001 Question Answer
What is the difference between an undervoltage and a sag?
A sag lasts less time than an undervoltage condition.
A sag has less of a voltage drop than an undervoltage condition.
A sag is due to downstream loads and undervoltage is due to the power source.
A sag occurs in low voltage distribution and undervoltage occurs in high voltage distribution.
TESTED 21 Oct 2025
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