| 摘要 |
An emergency device for use in a dwelling or any similar place provided with a sump pump in the basement, in order to operate this sump pump and, if desired, to switch on some emergency light in the case of a failure of the main electric power source of this dwelling. The device includes a storage battery connected to the sump pump in such a manner as to operate it in the case of a failure of the main power source. It also includes a transformer-rectifier to permanently recharge the storage battery when the power source is in operation. It further includes external plugs connectable to the battery of an automotive vehicle parked near the dwelling with its motor running, in order to use this battery as a substitute for the indoor battery and thus allows the sump pump to continue to operate even when the storage battery indoors is down. Advantageously, the device may further include an additional circuit activated by relay to switch on some emergency lights inside the dwelling whenever there is a failure of the main power source. |
