The installation can be critical. Electricity and ice or heavy water can be problematic. If you want to transport power from transformers to panel passing outdoor, the solution is Isolsbarra busbar in version IP66 or IP68. Not necessarly cables.Isolsbarra system can transport power from 630 to 6300 A and it is fully tested to stay outdoor under heavy rains or heavy snows. Version IP66 is perfect for overhead installations, while IP68 when the line pass underground and the risk of immersion is possible.