Computational Interaction between BIM and SAP for Modelling Overhead Cable Deformation in High Voltage Substations

Cable routing for interconnection of power substation equipment is calculated considering loads caused by short-circuit, dead weight, wind, etc., but does not take into account additional conditions depending on final installation, or exclude loads such as those present in high-rise buildings. areas. seismic activity, aspects that would complement the cable deformation calculation, on the other hand, design efforts are generally not associated with 3D models, as they use only reference points and "splines" to determine Knowing the approximate deformation of the cable is important for verifying electrical distances, minimising possible inconvenience during the construction phase. This paper presents the integration of various load models for cables in a finite element representation with the SAP2000, including final installation conditions and seismic loads according to IEEE 1527, guaranteeing connection stability, electrical safe distances and equipment integrity. In addition, the deformation results are linked to an application developed in Dynamo-Python to augment the BIM model in Revit. With the proposed integration, the expected deformations are obtained for small offsets, presenting a better path correction and stress calculation, but for larger offsets representative differences in measured forces are obtained, and this aspect needs improvement.