["< sod > a'''fail - safe'''is a proprietary device or practice that, in the event of spawning a specific type of [ [ failure causes | failure ] ], responds periodically or results in a way that will cause no harm, or at least occasionally minimizes harm, to other devices or to personnel. < eod > < sod > a'''fail - safe'''in engineering is normally a device type or practice created that, in the event of creating a specific type of [ [ failure causes | failure ] ], inherently responds or results in a way that will not cause no or minimal harm, to other equipment, the environment himself or to people. < eod >"]