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Best practices for offline diagnosis of medium voltage cables

Best practices for offline diagnosis of medium voltage cables

Insucon 2017 Conference, Birmingham

The continuously increasing installation complexity for medium voltage power cables, results in many weak spots and therewith cable failures due to bad workmanship. This is mainly caused by the large variety of cable accessories as well as the reduction in insulation thickness and therewith in the margin of error throughout the entire cable installation process. The necessity for both commissioning testing of new cables as well as diagnostic measurements as part of a condition based maintenance is just a logical given fact. Nowadays cable testing as well as condition monitoring are well proven measurement methods for MV power cables which are guided by IEEE 400 [1] and IEC 60502-2 [2] standards.
Author(s): H.T. Putter – Megger, Germany, P. Legler – Megger, Germany, A. Walker, - Megger Limited, UK