Mineral Insulated (MI) cables are typically used within the reactor core. Standard MI cables are inadequate in maintaining immunity and low losses. Ultra’s cables are designed to transmit very small pulse or dc signals through regions of high temperature, radiation and electromagnetic noise found within the core of a nuclear reactor.
Specialised cable geometries have been developed to maintain levels of insulation resistance and minimise the surface transfer impedance. These make use of multiple metal and insulating sheaths. Two different types of cable are available; Triaxial and Colaminax, and these offer varied screening properties for different applications.