Automotive & Transportation

Cat.7 hybrid cable for rail vehicles

31 August 2020

Hradil Spezialkabel, a specialty cable engineering firm based in Germany, has developed a high-endurance hybrid cable for indoor and outdoor applications. The Hradil hybrid cable, which is suitable for rail systems, removes the need to have separate cables for power and signal transmission, combining both tasks in a single connection cable.

An entire train can be completely connected with a single Cat.7 hybrid cable, even across couplers. In addition to applications such as ASDN, FDDI, ATM and cable sharing, the cable can be implemented for high-speed Source: Hradil SpezialkabelSource: Hradil Spezialkabelapplications up to 10G Base-T IEEE.

The hybrid cable features an outer diameter of only 18.6 mm and meets the exacting fire protection requirements of DIN EN 45545 as well as the Hazard Level 1-3 (HL1-3) standards. It has been engineered to withstand extreme mechanical loads up to 10,000 Newton and a bending radius of 10 times the outer diameter. The black high-endurance hybrid cable comes in a polyurethane outer jacket made from a halogen-free HFFR compound. Underneath this black layer there is another insulation in red. In case of excessive wear, or, if the cable jacket becomes damaged, the red color underneath acts as a warning that the cable should now be replaced for safety reasons.

For added tensile strength, the jacket and core of the cable feature aramid fiber braiding. The outer cable jacket is resistant against oil and gasoline as well as against ozone, UV, cooling fluids, lubricants and cold cleaning agents. The railway cable by Hradil excels in temperatures ranging from -40° C to +85° C.

To contact the author of this article, email engineering360editors@globalspec.com


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