Use the following links to view Storm's bus bar ampacity tables...
Table 1. Ampacities of Copper Alloy 11000 Bus Bars - Ampacities in this table are for buss bars having an emissivity of 0.4. This was observed on samples exposed for 60 days in an industrial environment, and it is probably identical to that of buss bars in service.
Table 2. Quick Ampacity Bus Bar Size Selector - Knowing the ampacity, designers and estimators can get the approximate buss bar size. Ampacity of the busbar selected must then be verified by checking Table 1.
Table 3. Effect of Emmissivity and Number of Bus Bars on Ampacity - Data here show how higher emissivities improve ampacity. Multiple buss bars also affect ampacity in a nonlinear relationship. Ampacity may be raised by increasing heat dissipation through the use of convection cooling or surface treatments.