If a Transmission Operator experiences a loss of ICCP communication for more than 30 minutes, what must they submit?

When a Transmission Operator experiences a loss of Inter-Control Center Communications Protocol (ICCP) communication for more than 30 minutes, it is mandated that they submit an event report. This requirement is in place to ensure that any significant disruptions in communication are documented and can be reviewed for compliance and operational integrity.

The submission of an event report serves several critical purposes. It allows for the analysis of the communication outage, including its duration and impact on system operations. This documentation is essential for regulatory compliance, ensuring that operators are accountable for maintaining robust communication channels, which are vital for grid reliability.

An event report typically contains details about the incident, the timeline, actions taken during the outage, and any corrective measures or impacts on the transmission operations. This systematic reporting helps in identifying trends or recurring issues in communication infrastructure, enabling better planning and mitigation strategies in the future.

In contrast, compliance reports, failure analyses, or restoration documents serve different functions and aren't specifically tied to the immediate requirement following an ICCP communication loss. These reports might be relevant in broader contexts, but the direct and specific requirement after a loss of ICCP communication for an extended period is the submission of an event report.