inTerra is expert at sourcing thermal aggregates in remote locations throughout the world, ensuring that the materials selected are functional for the project from a thermal and flowability standpoint, yet not cost-prohibitive.
Our experience with thermal products will help to optimize heat transfer and avoid costly mistakes.
If the heat generated by underground electric transmission lines is not dissipated efficiently, the result can be the de-rating of the cable ampacity, hot spots, reduction in cable life-span and ultimately pre-mature cable failure. There are numerous examples throughout the world, from the U.S. to New Zealand, of cables failing shortly after installation due to excess heat not adequately dissipated. In many of these cases, an inTerra thermal backfill surrounding the cables could have prevented cable failure and avoided millions of dollars re-invested.
inTerra’s Thermal Product Lines of Fluidized Thermal Backfill (FTB), Thermal Concrete and Thermal Grout are the solution to your heat transfer requirements. Our products will create a stable thermal environment for the expensive high voltage cables, assisting them to operate efficiently at safe temperatures and for the life expectancy anticipated.
The diagrams below depict common uses for our Thermal Product Line.