Cathodic protection (CP) is the most suitable technique to limit metal corrosion in pipeline networks. To preserve the effectiveness of the CP system it is essential the monitoring of the potential distribution along the net. In distribution networks, the pipeline potential is affected by environmental time variant phenomena, which make it difficult to estimate the potential away from the measurement point. In this preliminary work, a novel distributed monitoring system, based on already existing wM-Bus at 169 MHz infrastructures for gas metering, is proposed. The aim is the implementation of a low cost system able to monitor and control the pipeline potential in a suitable measuring point.
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