Salt is a strong electrical conductor. Ocean water is full of salt. Once the salt dries, it can wreak havoc as power utilities restore electricity.
Several small explosions rattled storm-weary residents of Peter Cooper Village late Friday night and even blew two manhole covers as Con Edison was restoring power to the area. The latest apparent nastiness from Hurricane Sandy — days after the nightmare storm — caused no injuries, according to paramedics and Con Ed officials on the scene. Officials said the explosions occurred when the utility started restoring electricity and the current hit salt on the power lines. The salt was the remnant of a 10-foot wave of East River water that crashed through the complex at the height of the storm Monday.