A. Electrical power systems are grounded (connected to the earth) to limit the voltage induced by lightning, line surges, or unintentional contact by higher‑voltage lines and stabilize the system ...
All questions and answers are based on the 2005 NEC. Q. Do I need to use hospital-grade receptacles in a chiropractor's or medical examining room? A. No. Only receptacles for inpatient sleeping beds ...
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