A cool way to turn on the heat
By using Thermal Analysis software instead of actual tests, Nexans can calculate how heat generated by AC/DC current affects complex cable systems for a specific application or within a given environment.
Rainbows and UFOs
The generated computer images resemble anything from a rainbow-colored honeycomb to an asteroid or UFO. However, the color spectrum shows how cable insulations and entire systems function in actual use, taking into account layup, screening, assembly, installation and ambient conditions (ventilation). Thermal modeling helps us to optimize systems and develop new cable designs.
Modeling has been used for several types of cables: Power over Ethernet Plus (PoE+) wind-energy, rolling stock, automotives, and overhead lines. It is a tool that we use to show customers that we master cables in all conditions, and not just analytically on paper.
The model was initially developed to quantify the temperature rise in bundles of Ethernet cables (PoE+) to see how high we could go in voltage to power online devices. Then we adapted it to simulate the thermal behavior of overhead lines. Meanwhile, shipbuilding customers observed that tightly-packed cables had a tendency to melt and merge. Thermal Analysis made it possible to convince them that proper installation and ventilation were of prime importance in assuring safe performance. The same logic applies to all cables packed close together: data center LANs, locomotives, automobiles.
Making environments visible
Committed to the idea that cables operate in environments and not all alone, we validate our models virtually, and then confirm performance through controlled experiments or actual mock-up installations.