New York State Master Electrician Practice Exam

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Emergency branch circuits for patient bed receptacles are permitted to originate from how many transfer switches?

One
Two
Three
Four

The correct answer is: Two

Emergency branch circuits for patient bed receptacles must originate from two transfer switches due to the requirements set forth in the National Electrical Code (NEC) and healthcare facility standards. This configuration ensures redundancy and reliability in the power supply to critical patient care areas. By having two transfer switches, the system can provide alternate pathways for power in case one source fails, which is crucial in hospital settings where continuous operation of medical equipment is essential for patient safety. Using a single transfer switch could create a single point of failure; thus, the two-switch system mitigates risks associated with power outages or system failures. This setup not only complies with national regulations but also enhances the overall safety and necessity for uninterrupted power for patient care in medical facilities.