Current location - Health Road Network - Medical equipment enterprise - Why can't the fire emergency power supply I bought in Zhongshan Dong Jun Lighting Co., Ltd. be connected? Please tell me.
Why can't the fire emergency power supply I bought in Zhongshan Dong Jun Lighting Co., Ltd. be connected? Please tell me.
The emergency light will not light up when the main power supply is normal, but only when there is a problem with the main power supply.
Details are as follows:
The national standard GB 17945-20 10 stipulates that when the AC power supply is cut off instantly or the AC voltage is lower than 187V, the fire emergency light will automatically enter the battery power supply state;