The VITALink® family of circuit integrity cables employs innovative technology that allows cables to survive and operate during a fire. At the heart of this technology is a unique silicone rubber insulation material that ......The VITALink® family of circuit integrity cables employs innovative technology that allows cables to survive and operate during a fire. At the heart of this technology is a unique silicone rubber insulation material that ceramifies and maintains physical & electrical integrity when exposed to flame conditions. The product offshoots of this technology have been designed with practicality in mind. Engineering flexibility & installation ease features have been maximized to allow for market acceptability. 2-Hour Fire ratings on (UL) Types MC, RHW & CI represents industry firsts with respect to qualification to the demanding requirements of (UL) Standard 2196. Critical functions for power, control, lighting and fire alarm circuits can now be counted on to provide "survivability" without compromise.