Monitoring of the service cable PEN conductor to assure bonding using a smart split meter

This paper investigates a method for monitoring the service cable PEN conductor on a smart grid to provide information regarding deteriorating infrastructure. The consequences of leaving a deteriorated or broken service cable PEN conductor is examined for the TN-C-S earthing scheme using smart split meters. The feasibility of implementing a monitoring method is evaluated through system modelling and simulation as well as implementation on a physical setup. Simulation and experimental results indicated that it would indeed be able to approximate the service cable PEN conductor value but require more investigation regarding the behaviour of the incidental earthing impedance.