What is an electrical safety analyzer used to measure?

• A. Blood pressure and heart rate
• B. Temperature and humidity
• C. Light intensity and color temperature
• D. Ground continuity, chassis leakage, and line voltage tests

Answer: (D)

An electrical safety analyzer is used to verify that medical electrical equipment is safe to use by checking three key electrical safety aspects. First, ground continuity ensures there is a solid path to earth for fault currents, lowering shock risk. Second, chassis leakage checks the amount of current that can leak from live parts to the device’s metal casing and, if present, to the patient or user; this must stay below defined limits. Third, line voltage tests verify that the device’s supply and isolation boundaries are correct and that there is no dangerous voltage on exposed parts. Together, these measurements confirm the device won’t pose an electrical shock hazard. The other options relate to physiological or environmental measurements and do not assess electrical safety.