LS Cable and Nexans to supply superconductor for Tres Amigas November 23, 2010 | North America Company News South Korea-based LS Cable and France-based Nexans have been selected by American Superconductor Corporation (AMSC) as superconductor power cable subcontractors for the Tres Amigas superstation. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password