 The magnitude of current available in an arc (and probability of damage) depends on the geometry of the installation and is not simply correlated with the voltage of the transmission line.Wetting conditions near industrial plants or saltwater will have more severe effect on the jacket resistance than in freshwater rain or fog.The two usual means of protecting cables from dry-banding damage in very high voltage environments involve using a tracking-resistant cable jacket material and relocating the cable to more favorable locations on the structure.