A lumped circuit model for calculating voltages and currents on all-dielect
ric self-supporting (ADSS) fiber optic cable near high voltage transmission
lines has been developed. The model has been used to show that contaminati
on levels, tower attachment points, relative ADSS and conductor sag and ele
ctrical phasing of the conductors are important parameters and must be cons
idered in calculations, especially when determining the possibility: of dry
band arcs which could lead to cable damage.