This was taken in a computer testing lab with plenty of Liebert A/C cooling the area. Probably helped the heat to dissipate. The lighter the blue color on "B" phase is the heat dissipating over the bus. Darker blue is a cooler temp.
The circuit fed a dedicated receptacle for computer equipment. The only problem was someone plugged six five foot plug strips into the dedicated circuit. "IT" guys just plug and play.
