| 摘要 |
A safety device for use in conjunction with an electric cooking stove includes a relay unit having a plug having two live pins and a neutral pin for insertion in a stove receptacle, a receptacle receiving a similar plug of a stove, a relay arrangement for interrupting connections between the live pins of the plug, and corresponding live sockets of the receptacle; and a control unit connected to the relay arrangements, the control unit generating signals to activate said relay arrangement; the relay arrangement is configured to interrupt only one at a time of the connections between the live pins and the live sockets, and the relay arrangement further includes preset switch or jumper to select which of said connections is interrupted. The control unit preferably includes a device to detect the presence of a person in the vicinity of the stove and a timer which restarts a count-down whenever the detection a device fails to detect a person, and causes the control unit to send a signal to the relay arrangements on completing the countdown. |
