Problems with accessories and/or installation can influence the quality of a newly installed power cable circuit. While manufacturer standards recommends on ‘Go/No-Go’ decision based on simple overvoltage tests, even in a no-breakdown situation presence of defects cannot be excluded, meaning standards do not provide sufficient recommendations for after-laying testing. Damped AC voltage provides sensitive measurement of PD and dielectric losses over a complete cable circuit. This presentation discusses improving test procedures for after-laying testing and diagnostics of all types of on- and offshore power cables. Practical examples using damped AC voltages when testing new connections as well as in assessing condition of service aged cables will also be provided.
Developments in Test Methods & Acceptance Criteria for On & Off-Shore Power Cables
by Edward Gulski