Emergency lighting distribution boxIt is a device used for emergency lighting and is part of the components of an intelligent evacuation system, usually installed in a building to provide electricity to keep the lighting system running. The emergency lighting distribution box is mainly used for the power distribution of emergency lighting and safety evacuation lighting in the building, as well as the power supply of fire fighting equipment and safety evacuation indicators. In the event of an emergency, such as power outage, fire, etc., the emergency lighting distribution box can provide people with the necessary lighting and power guarantee to ensure personal safety.
So what are the standard requirements for the performance of emergency lighting distribution boxes?Hinton will give you a detailed introduction below.
The emergency lighting distribution box shall comply with the provisions of the GB17945-2010 standard:
The dual-input emergency lighting distribution box should be able to automatically put into the standby power supply when the normal power supply fails, and automatically restore to the normal power supply after the normal power supply is restoredThe normal power supply and the standby power supply cannot be output at the same time, and should be equipped with a manual test conversion device, which should be able to automatically return to the normal power supply after the manual test conversion is completed.
The emergency lighting distribution box should be able to receive the emergency conversion linkage control signal, cut off the power supply, make the connected lamps and lanterns turn into an emergency state, and send out a feedback signal.
Each output distribution circuit of the emergency lighting distribution box shall be equipped with protective appliances, and shall meet the relevant requirements of GB 50054.
Each power supply of the emergency lighting distribution box shall be equipped with a green power status indicator to indicate the power supply status of the normal power supply and the standby power supply.
When the emergency lighting distribution box is converted in an emergency, it should be ensured that the lamps and lanterns are transferred to the emergency working state within 5s, and the emergency conversion time in high-risk areas is not greater than 025s。