Chainflex cables

Example 2: tested,tested, tested! TechnicalData Properties CAT5Alteration of the electrical transmissionproperties of a CAT5 cablewhen subjected to an application ofstress with the minimum bendingradiusHigh transmission rates of up to 100 Mbit/s place high demandson the cable structure and its materials. The use of the cablesin Energy Chains ® subjects these materials to additional stressand results in long-lasting alterations of the electrical properties.A CF 14.02.04.02.CAT5 cable was selected as a cable to be inspectedfor high transmission rates. Even when subjected to anapplication of stress with the minimum bending radius, the cablemust also be able to meet the electrical requirements of the IEC61156-6 standard. In the case of the CF14.02.04.02.CAT5 cable,four pairs of cores are stranded with one another, with each corepair possessing a nominal cross section of 0,25 mm 2 . The conductorconsists of bare copper wires and is surrounded by aninsulation sheath consisting of foamed PE.The following items were inspected:n Characteristic wave impedance of single pairsn Single-pair attenuationn Return loss of single pairsn Near-end crosstalk attenuation ofsingle pairs versus one anotherThe test is to be carried out in order to determine whether thelimit values of the IEC standard are complied with by the cableafter being subjected to bending stress.26