Which option is not typically a component of EMC testing per IEC 60601-1-2?

• A. Radiated emissions
• B. Conducted emissions
• C. Immunity tests
• D. Software usability testing

Answer: (D)

In EMC testing for medical equipment under IEC 60601-1-2, the focus is on how the device emits electromagnetic energy and how well it withstands external electromagnetic disturbances. Radiated emissions measure the device’s energy emitted through the air, while conducted emissions look at energy on power and other connected lines. Immunity tests assess the device’s tolerance to external EMI, such as electrostatic discharge or RF fields, ensuring it continues to operate safely in real environments.

Software usability testing, on the other hand, does not address electromagnetic behavior. It evaluates how easy and safe the software is to use, which is a usability concern rather than an EMC concern. Therefore, software usability testing is not typically a component of EMC testing per IEC 60601-1-2.