Internal Arc Withstand Test on a 420 kV Cable ending

By the end of 2019 we performed an internal arc withstand test on a 420 kV cable termination for the European cable manufacturer NKT, accessories and cables provider.

The internal arc withstand test underwent the following constraints:

• Build up a 4m high equipment on a 3,5 m high frame in a mounting hall
• Carry the 7,5 m high structure to the testing area with a low-loader truck
• Coordinate teams from several countries : German, Belgian, French, Greek and Swedish people
• Apply a RMS current of 50 kA for 600 ms

This test is a success for the manufacturer, as the equipment correctly reacted to the explosion related to the internal fault. We are pleased to have been part of this achievement.