Integrating Diagnostic Tests for Power Cable Reliability

This technical report discusses the integration of diagnostic and factory tests aimed at maximizing the reliability of new critical Medium Voltage (MV) power cable systems. It outlines methods and experiences derived from a case study involving a subsea bay crossing in the USA, emphasizing the importance of diagnostic testing in asset management from factory to commissioning and service. The report details the challenges faced by utilities in maintaining aging assets and the necessity of effective diagnostic programs that facilitate smart maintenance. It highlights the deployment of various diagnostic technologies, including VLF and partial discharge testing, and their role in assessing cable integrity. The document also defines critical power cable systems and discusses the implications of their reliability on essential services. Additionally, it presents lessons learned and recommendations for utility engineers to enhance the operational reliability of critical cable assets.