Study on the effect of test circuit parameters on dry band arcing failure of ADSS fiber optic cable

The purpose of this paper is to experimentally investigate the effect dry-band arcing caused failure on ADSS (all dielectric self-supporting) caused by different test circuit parameters. It is noted that the circuit parameters have significant effect on the nature of dry-band arcing. In this paper, three different test circuit conditions are applied on the same type of new cable samples. The life data are recorded and analyzed with statistical methods. It is shown that the all-capacitance condition causes less damage to the cable jacket than the resistance or resistance/capacitance conditions. The waveshapes of the arc voltage and arc current are recorded and used to calculate the arc power, arc energy, and arc charge of the different cases. Analysis shows that the failure caused by dry-band arcing is an accumulative process, which is dependent on the arc power, arc duration, arc length, arc energy, arc charge, and power distribution of the arc.