INDIANAPOLIS—General Cable Corp. continues to invest in new compounds and as a result has developed a new cable for nuclear applications.
The Ultrol 60+ low-voltage cable, released in 2014 after four years of development, meets the most rigorous GEN III+ reactor requirements for a 60 year operating life. That includes:
• 60 years of life expectancy confirmed through Arrhenius aging tests;
• Exposure to gamma radiation of more than 300 MRads total integrated dose or more than 300 MRads total integrated dose of beta radiation;
• Surpasses nuclear industry requirements for existing pressurized water reactor and boiling water reactor facilities to the Institute of Electrical and Electronics Engineers Standards Association 323 and 383 requirements;
• Meeting reactor manufacturer requirements for design basis event temperature and pressure profiles; and
• Completion of one-year post-DBE submergence requirements for some GE III+ reactor profiles in hot boric acid solution.
Srini Siripurapu, vice president of research and development, said designing Ultrol 60+ was one of the toughest projects the firm's Indianapolis research and development center initiated.
“After Fukushima happened, the requirements for the new generation reactors that are being built in South Carolina and Georgia have increased,” Siripurapu said. “The old cables had to survive for 40 years; the new cables have to survive for 60 years.”
General Cable's research and development centers produce compounds used in the insulation and jacketing applications of the cable, which include elastomers. Siripurapu said the firm deals mainly in polyolefinic elastomers and EPDM.