The residual voltage of a capacitor, rated not over 600V, shall be reduced to 50V or less within _____ after the capacitor is disconnected from the source of supply. a) 15 seconds b) 45 seconds c) 1 minute d) 2 minutes See answer and applicable Code reference The correct answer is: c) 1 minute Article 460 covers the installation of capacitors on electrical circuits. As noted in Sec. 460.6, "Capacitors shall be provided with a means of discharging stored energy. In addition, as per ...

Website Registration Required to Access this Content

Only registered users have access to Silver content.

Registration on EC&M allows you exclusive access to high value content centered around proprietary research, expert NEC analysis and in-depth technical procedures.

Already registered? here.