I have a single electrical distribution panel in an insulated metal panel building (a standalone shed) which has no active cooling or air vents. I need to determine whether the latter are required in a climate that has an average high and low temperatures in July of 22.6 and 7.0 degrees Celsius, respectively. A temperature of 28.5 has occurred in July in the recent past.
The total calculated capacity of the steel distribution panel is 414 amps and the MCB rating is 100A (if this matters, I don't know). The Mains Breaker is listed as 160A/230/400V.
The surface area (A) of the metal panel box is 0.855 m2.
I need to understand how to calculate the maximum heat that will be emitted from this panel.
By my calculations, with a 1 degree C temperature difference between the outside and the inside of the room (not the panel), the heat transfer is 41.9 Btu/hour (the total surface area = 129 m2).
My question is, in July will the room temperature exceed 40 degrees C with the heat emitted from this electrical panel?