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Converter Station high-voltage switchgears re-use factorys

MEW Specifications | Electrical Wiring | Electrical ... Voltage Tests: For 132 cable circuits (see clause 3.22.2). For 33kV O/F cables, a D.C voltage 75kV for 15 minutes shall be applied between each phase and the cable screen with the other two phases earthed provided that the oil pressure is brought upto the design level. For 11kV cables a D.C. voltage of 25kV for 15minutes shall be applied.

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