When electrical equipment is rendered unsafe and decommissioned for work the usual course of action is to tag the plug with a red or yellow flag. There are other times when electrical devices that are functional are prohibited for use to avoid injury or fatalities, such as in the home when a child or disabled person should not operate a hazardous electrical device. The aim of this development is to provide a locking device that can be deployed to the plug itself making it impossible to insert into the GPO, rendering the appliance or machine safe.


The Safe-T-Tag design was aimed at developing a system that identifies unsafe electrical componentry and temporarily locking it against accidental use. The main challenge was to find a mechanism to grip into on the front of the power plug, and the design team created a mechanism that grips onto the pins. The resulting product allows electrical componentry to be quickly and effectively flagged and improves safety against electrical accidents.