THF型双电源控制柜------

   

双电源控制设备主要由双电源自动切换装置组成，可根据需要在常用电源与备用电源之间自动切换，保证供电的可靠性和连续性。

依据：消防给水及消火栓系统技术规范GB50974-2014

11.0.17 消防水泵双电源切换时应符合下列规定：

1 双路电源可手动及自动切换时，自动切换时间不应大于 2s；

2 当一路电源与内燃机动力切换时，切换时间不应大于 15s。

依据：建筑设计防火规范GB50016-2014（2018年版）

10.1.8消防控制室、消防水泵房、防烟和排烟风机房的消防用电设备及消防电梯等的供电，应在其配电线路的最末一级配电箱处设置自动切换装置。

      The dual power supply control equipment is mainly composed of dual power supply automatic switching device, which can automatically switch between common power supply and standby power supply as required to ensure the reliability and continuity of power supply.

Basis: technical code for fire water supply and hydrant system gb50974-2014

11.0.17 when the dual power supply of fire pump is switched, the following provisions shall be met:

1. When the dual power supply can be switched manually or automatically, the automatic switching time shall not be more than 2S;

2 when one power supply is switched with the power of internal combustion engine, the switching time shall not be more than 15s.

Basis: Code for fire protection design of buildings gb50016-2014 (2018)

10.1.8 for the power supply of the fire control room, fire pump room, smoke control and smoke exhaust fan room, the automatic switching device shall be set at the last level distribution box of the distribution line.