For the park, see Washington Square (Philadelphia). Washington Square West is a neighborhood in downtown, or Center City, Philadelphia, Pennsylvania.
Electric Door Strike (image from bigasterisk.com) A better solution for door security hardware during a power outage is to use electric strikes. An electric strike is a mechanically operated strike that releases a door when the mechanical part is activated.
Most electric locks can be set to function in one of the following ways: 1  Fail-safe: in the event of a loss of power supply, the lock will automatically unlock, ensuring that people can still exit through the door (safety first)