I have a single 4.16kV 600A feed that powers two 600 amp substations. From substation 1 I have a dedicated 300A/4.16kV circuit that feeds a 700A bus bar section. From substation 2 I have another dedicated 300A/4.16kV circuit that feeds another 700A bus bar section. Can I physically jumper the two bus bar sections together while keeping the two 300A circuits energized so I now have a single bus bar capable of 600A as opposed to two independent 300A bus bars.