![]() ![]() Removal of the filter access door on a forced-air furnace prevents operation of the blower motor and possible contact with the blower blade and/ or combustion gas recirculation hazard (example of guard and secondary hazard of recirculation).Removal of a guard on a food processor prevents the operation of the motor and blade, thereby reducing the opportunity for spinning blade injury (example of guard).Examples of consumer products incorporating interlocks are: Many product standards mandate interlocks in both industrial equipment and in everyday consumer products. Safety interlocks may have additional or combined features to reduce hazards. For example, a guard may be interlocked to prevent machine operation when a guard is removed, or a control may be interlocked to make it nonoperational if a dangerous condition will result. In the context of safety, interlocks can prevent a user from making unsafe actions, or minimize the hazard of unsafe actions by rendering the machine in a safe condition when an unsafe maneuver occurs. An interlock can be defined as a device that prevents you from making an inappropriate maneuver, or adjusts the system to a safe state if you make an inappropriate maneuver.
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