Which of the following is a sign of electrical wear and tear?

Flickering lights or frequent outages are clear indicators of electrical wear and tear. These symptoms suggest underlying issues in the electrical wiring or components, which could be attributed to problems like loose connections, degraded wiring insulation, or overloading of circuits. In a healthcare setting, such signs can be particularly concerning due to the critical reliance on consistent electrical performance for medical devices and systems, which must operate reliably to ensure patient safety. Monitoring for these signs is essential in preventing potential hazardous situations like electrocution or equipment failure, which can have serious implications in healthcare environments. The presence of flickering lights or outages serves as a warning that maintenance or further investigation is necessary to maintain safe electrical conditions.