A Cold-Bend Test for Thermoplastic Cable Jackets.
Abstract:
A very simple cold-bend test was devised and tested for evaluating thermoplastic jackets used on mine-power-feeder cables. A test sample is bent into a semicircle whose radius is equal to the minimum bend radius recommended by IPCEA and then cooled to the desired test temperature -35 deg C. While at temperature, the sample is straightened by pulling the cable ends with a winch arrangement. The results show that of the jackets tested, those which cannot withstand the test literally burst when the sample is straightened. MM
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