Electrical equipment that distributes power has a heat loss due to the impedance and/or resistance of its conductors. Therefore, the heat dissipation performance of the outdoor waterproof electrical box is crucial to ensure the stable operation of the power system. The following discussion applies to gasketed and unventilated enclosures. Higher. The reason behind failure linked to improper thermal management is that equipment operating outside its temperature range experiences accelerated degradation. 1、 Where is the problem? In the preliminary testing, we found that: Severe heat accumulation inside the sealed box The natural convection effect is poor, and hot air cannot be expelled Simply increasing the casing or adding a fan can also affect. Distribution boxes are the unsung heroes of our electrical infrastructure.