Which of the following describes a weather condition that can lead to a major storm disaster?

The choice describing a weather condition that can lead to a major storm disaster is related to scenarios where environmental factors push equipment or systems beyond their designed thresholds. When equipment exceeds design limits, it may become susceptible to failures, especially under adverse weather conditions such as hurricanes, heavy snow, or severe flooding. These situations can increase the likelihood of catastrophic events occurring within power substations due to heightened stress and strain on the infrastructure.

In contrast, normal operating temperatures, stable environmental conditions, and regular equipment maintenance are all factors that contribute to the proper functioning and reliability of a power substation. Normal operating temperatures indicate that the equipment is functioning within its intended design parameters, which mitigates the risk of failure. Stable environmental conditions mean that there are no significant weather events occurring that could disrupt operations. Regular maintenance ensures that equipment is kept in optimal condition, reducing the risk of malfunctions that could arise from neglect or wear. Each of these factors supports reliability rather than contributing to potential disaster scenarios, as they help maintain the integrity and functionality of systems under normal conditions.