The question is related to calculating the current rating from heat flow equations in IEEE Std. 738-2012.
I = sqrt((q_c+q_r-q_s)/(R))
If the solar heat gain (q_s) is greater than q_c and q_r the resulting value of 'I' will become imaginary. In such a situation, how should I make sense of this imaginary value? What approach should I consider to calculate the line current rating under such a scenario?
Thanks