If two Reliability Coordinators determine different Tv values in a connected system, what should they do?

When two Reliability Coordinators identify different Tv values within a connected system, the prudent course of action is to operate to the lower Tv. This approach ensures that the system remains within limits that prioritize reliability and safety. The Tv value represents the time before a system reaches a critical state or requires a response to maintain operational integrity. By opting to operate to the lower Tv, the coordinators effectively incorporate a safety margin, reducing the risk of potential failures or system instability.

While other options like conducting further tests or waiting for a third-party assessment may seem reasonable, they can introduce delays that may compromise system reliability in the meantime. Operating to the higher Tv could lead to overestimating the system's capacity, posing risks that are mitigated by adhering to the more conservative, lower Tv value. This choice aligns with best practices in system operation and risk management, ensuring that all operational decisions emphasize reliability and stakeholder safety.