The purpose of the Structural Transmission Evaluation Program(STEP) is to give the client’s Transmission Asset Management a uniform and global view of the health of their 500kV transmission system a sit relates to mean strength values derived from PLS-CADD’s Finite Element Analysis software.


ASEC is managing the program wholly using internal resources from schedule development to monthly reporting and tools creation using POWER BI. The client’s 500kV tower family is modeled using information from their GIS system, Structural Data Sheets and detail drawings of the 500kV lines and towers. LiDAR data will be used along with M4models to accurately sag conductors and develop structure usages per STEP criteria.