I second the motion.I would call the POCO to be sure.
Funny you should mention this. Just yesterday I had a service call where these same conditions were present. It seems that whoever added a sub panel to this residence (and didn't have it inspected) installed the tap wires under the same lugs as the SE cable. Little did they realize that the neutral of the SE cable fell out from the lug. Long story short.....the TV, stereo, and microwave were toasted !!!!!!!!A lost neutral can cause a house fire It will damage equipment on that high leg.