Modern Methods for Quality- and Condition Assessment of High Voltage Cables

Given that reliable transportation of energy is fundamental to a country, quality control is essential for newly installed and in-service cable connections. It is known that routine tests (insulation coordination) completely check the quality of a power cable and accessories at the manufacturer. Nevertheless, the risk of problems with the delivery and installation of accessories can affect the quality of a newly installed power cable circuit. Based on international experience gathered on various power grids over the past 20 years, this article focuses on the use of non-destructive testing for after-installation- and diagnostic tests of all types of transmission cables. The focus will be on the application of Damped AC testing of newly installed cable circuits in relation to the classical after-laying technology.