Оценка возможности нормальной эксплуатации кабелей на основе витых пар в поливинилхлоридной защитной оболочке в условиях повышенной влажности и температуры

Abstract

According to the results of accelerated aging under conditions of high humidity and temperature, it is established that the design of an unshielded cable based on unshielded twisted pairs with thermoplastic polyethylene insulation in a protective coating based on PVC-plastic is resistant to external influencing factors. The prolonged holding at temperature of 90 °C is equivalent to operation at temperature of 40 °C for 6-8 years. At higher operating temperatures, the lifetime of the cable is significantly reduced.