My flourescent ceiling fixtures began to flicker and go out in my tool area...so did other things in room. One fixture actully began to smoke....I took this fixture out of system and began to do some amateur testing....drill and fan operated...but any incandescent bulb I plugged in instantly blipped and then went out. Non ceiling fixture compact flourescent bulbs operated brightly but ceiling tubes out...wuz up....I meter in wall "110" outlet.....meter shows 240!! After a few minutes I reengage ceiling switch while watching meter in wall outlet....tube flourescent fixtures flicker as meter shows 105 to 130...within 20 seconds, tubes go dark and meter rises again to 240! I notice another ceiling tube fixture has evidence of old plastic melt area yet it has worked properly over last several months...seems that power coming into out building has unexplainably gone from 110 to 240....why oh why??!!! Athanks for any ideas. Robert