The measurement and temperature profile of cable insulation failure due to loose connection at the cable termination

One of the dominant factors of cable termination fault in medium voltage circuit breaker compartment is due to excessive heating phenomenon. The excessive high temperature area will lead to degradation of the cable insulation. This eventually will lead to insulation failure and hence cable breakdown. The insulation failure may subsequently and causes fire in the cable compartment. A series of experiments were setup to measure the temperature profiles around the terminations and outside the cable termination compartment, with different scenarios. The results from the experiment will give a big contribution in future development of detection system of the fault termination in circuit breaker compartment.