2. Isolated power systems installed in healthcare facilities are required to A. have an equipotential plane. B. operate as a separately derived system. C. operate ungrounded. D. be grounded. 3. When a system is grounded impedance device. A. through an inductor B. solidly C. with a surge arrester D. through a low amount of resistance it's connected to ground without the insertion of any resistor or 4. Which of the following is an approved disconnecting means for a feeder or branch circuit supplying a separate building or structure? A. Panelboard B. Circuit breaker C. Bonding locknut D. Overcurrent device

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