After power is removed, large capacitors should be checked for stored what?

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Study for the NEIEP Machine Room Maintenance (550) Test. Use quizzes with hints and explanations to understand complex concepts. Enhance your readiness with multiple choice questions and flashcards!

Multiple Choice

After power is removed, large capacitors should be checked for stored what?

Explanation:
Capacitors store energy in the electric field between their plates, which shows up as a voltage across the terminals. Even after power is removed, a large capacitor can keep a dangerous voltage for some time, so the risk is the stored high voltage rather than any current or noise. Before servicing, you must verify and, if needed, safely discharge that voltage to zero.

Capacitors store energy in the electric field between their plates, which shows up as a voltage across the terminals. Even after power is removed, a large capacitor can keep a dangerous voltage for some time, so the risk is the stored high voltage rather than any current or noise. Before servicing, you must verify and, if needed, safely discharge that voltage to zero.

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