This paper investigates the thermodynamics of OPGW after the occurrence of short circuits, with a primary focus on temperature increase and its implications for the optical fiber component after the occurrence of a short circuit that leads to a rise in temperature . This paper investigates the thermodynamics of OPGW after the occurrence of short circuits, with a primary focus on temperature increase and its implications for the optical fiber component after the occurrence of a short circuit that leads to a rise in temperature . This paper investigates the thermodynamics of OPGW after the occurrence of short circuits, with a primary focus on temperature increase and its implications for the optical fiber component after the occurrence of a short circuit that leads to a rise in temperature on the optical fiber. The key. This paper presents a two-dimensional (2-D) electrical and thermal analysis of OPGW cables submitted to short-circuit conditions. A comparative analysis is made between two different types of cables: OPGW with only steel wires in the armor, and another with alternate aluminum and steel wires in the. In order to study the thermal stability and its influencing factors of OPGW under power frequency short circuit fault and lightning fault, a three-dimensional transient temperature finite element simulation model is established in this paper, and the temperature simulation of 8 different types of. In addition, This paper presents a two-dimensional (2-D) electrical and thermal the skin effect causes a non-uniform current distribution. Increase the section of the lightning conductor If the current exceeds not much, the steel strand can be increased by one size. If it exceeds a lot, it is recommended to use good conductor lightning protection wire (such as.