What effect will conductor heating have on the line? Do you need any countermeasures?

The heating of the conductor will lead to the thermal expansion and contraction of the conductor, which will affect the sag of the transmission line. The higher the conductor temperature, the more obvious the sag will increase, which will lead to a series of problems such as conductor galloping. I suggest that you use the on-line monitoring device for conductor temperature (TLKS-PMG-TP) to avoid conductor heating by monitoring conductor temperature in real time.