| 摘要 |
A control system for an electricity distribution circuit which is connected or adapted to be connected to an electrical supply of limited amperage and which, in use, is arranged to distribute electricity from the supply to a number of appliances which are connected permanently to the circuit and/or plugged into sockets in the circuit and which are required to be brought into operation from time to time, the control system comprising means operable, in use, continuously to sense the total current consumption of the circuit and adapted if any one or more appliances is or are brought into operation and as a result causes the total current consumption to exceed a predetermined maximum value, automatically to render at least one appliance inoperative so that the current consumption of the circuit does not remain above said maximum value, and means adapted when at least one appliance has been rendered inoperative by the control system automatically to render such appliance inoperable, such means being operable only by a user to render the said appliance operable. |
