How Cable Operating Temperature Governs Power Cable Performance
Cable operating temperature directly dictates current-carrying capacity (ampacity), electrical resistance, insulation lifespan, and structural integrity. According to standards such as IEC 60502 [1] and IEC 60287 [2], exceeding rated thermal limits accelerates the thermal aging of polymeric insulation (such as XLPE or PVC), increasing dielectric losses and conductor resistance. Higher temperatures elevate ohmic losses (I2RI^2RI2R), […]