ABSTRACT

Here, we investigate a risk basedmodelingmethodology, which aims to predict stochastic indicators of service delivery of interdependent CI, say telecommunication network and power distribution network. Telco services are largely dependent on reliable Telco devices and on reliable power supply powering them and vice versa. In fact, failures of power supply powering telecommunication main nodes can contribute to significant telecommunications outages. Vice versa, failures in telecommunication services can contribute to significant outages of the transmission and/or distribution power grids by means of their Supervision, Control and Data Acquisition (SCADA) systems. Here, we focus on service availability of a public telecommunication link connecting two control centres of the SCADA system of a power distribution grid. Service availability is what is directly perceived by infrastructure customers; it is different from network availability but relies on it.