Due to eddy currents, high temperatures often occur in structural parts adjacent to conductors carrying large currents. This paper deals with this problem and specifically with the minimum safe height and orientation of steel beams in a reinforced concrete ceiling above a three-phase transformer delta closure.
The power losses in the steel members due to induced eddy currents are calculated, from which the temperature increases are determined,
properly accounting for convection and radiation effects. The methods presented are substantiated by experimental data and applied to a practical installation.
Ryff, Peter F., "Induced Heating In Steel-Induced Heating In Steel-Beam Reinforced Ceilings" (1980). Electrical and Computer Engineering Publications and Research. Paper 3.