Machocki, K., Marhoon, Z. , Amjad, S., Sehsah, O., Dixon, T. and Jamal Ud-Din Mohammad 2021. A New Non-Intrusive Condition Monitoring System Designed to Improve Reliability of the RCD. Journal of Geotechnology and Energy. 38, 3 (Oct. 2021). DOI:https://doi.org/10.7494/jge.2021.38.3.4504.