Investigation of Applying New Technologies to Overhead Transmission Line Inspections. Final Report

摘要

Information obtained in the performance of EPRI Agreement RP1497-2 Remote Controlled Maintenance Device project is presented. The objective of this project was to assess the application of the most modern technologies to overhead transmission line inspection procedures. This work performance consisted of five tasks: identification of data needed for transmission line inspections; identification of symptoms for locating and quantifying problem conditions; detection techniques to sense problem conditions; transmission line environmental factors influencing sensing techniques; and, the cost effectiveness of inspection methods. Mobilization techniques for inspection packages were also conceptualized. The results of the project are summarized in a series of tables. The first table, Problems Currently Identified Through Overhead Transmission Line Inspection, lists conditions to be identified from an inspection, symptoms of each condition, and magnitude of these symptoms. These conditions were separated into six groups: conductor hardware, rights-of-way, insulators, conductors and ground wires, structures, and others. The second table summarizes the information presented on the various potential detection techniques. This table evaluates the techniques by comparative analysis, rating each technique by its relative sensitivity and potential success as a sensor. The last table contains a matrix showing the detection techniques and different modes of mobilization. A small table showing the cost of inspection based on method of mobilization has also been included. (ERA citation 07:004034)