Are their any relaying concerns or set backs in regards to the simultaneous faulting of two circuits sharing the same tower? Or with other types of relaying?
As such it may be a good idea to take the other circuit out of service as well during such testing?
@David Beach- Adjacent as in a circuit sharing a common structure or anther line in the same easement? The sounds like a huge value. I am guessing that the parallel path might be more at play than induction- but thats me just guessing.