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A shared dedication to safety, transmission reliability, and the use of innovative technologies to improve business practices brought together Hydro-Québec and British Columbia Transmission Corporation (BCTC) in the field deployment and enhancement of a high-performance power line inspection robot. Since 2003, Hydro-Québec's research institute (IREQ) has been developing LineScout Technology (LST), a mobile robot capable of crossing many of the obstacles found on live transmission lines, which consists of a modular platform onto which various sensors and tools can be deployed. Consequently, BCTC Research and Development Department (BCTC R&D) engaged discussions with the IREQ team in 2006 and developed over the years a very fruitful collaboration in deploying and improving this technology. Field experiences in British Columbia with the LST demonstrate that it is ready for deployment in inspection practices on different transmission networks around the world. Furthermore, this paper shows how collaboration between utilities can leverage the assets of each partner and lessen several obstacles likely to be found in the path of introducing robotics for transmission line inspection and maintenance.