"How did the nose eradicate the electrical poles (if it was the nose)?; How did the electrical wire ended in the tail cone?"
First, let me also give my thanks for CSAR for all his 'on the ground' reports!
Now...forgive me for posting this, however I thought it might have some relevance to the above questions....
During my primary training (about 300 years ago!), I watched a NASA video on wake turbulence. They had set up a series of poles at the departure end of a runway and then had a 747 take off. The film showed the poles begin swaying more and more wildly, until finally several of them ripped out of the ground. HOWEVER, they didn't go very far....simply popped out of the ground and fell over.
So...since the poles were only about 3-4 meters in height (as per previous posts)...could it have been wake vortex as the aircraft flew over that damaged the poles? Then, perhaps, 'dragged' the wires behind the aircraft in it's wake?
Just curious....this video had a BIG impact on me during my initial training and I've never forgotten it.