Relay interlocking interface hazard log (RR-STG-D-MSCRII-RP-4)

This document is the hazard log for the Relay Interlocking Interface (RII) sub-system. In some Integrated Electronic Control Centre (IECC) installations one or more relay interlockings are retained (e.g. where the relay interlockings are fairly new). To enable these relay interlocking(s) to be controlled from the IECC, a Relay...