Muyuan Group interview questions? (Two sides: electrical)

Oh, what you said is that the general dual power supply is called dual power supply because it is powered by two different substations, some of which are called standby power supply. The project I'm currently working on is only complicated, but there are three kinds of power sources, besides double ones, there are also diesel generators owned by the hospital. That's not what you mean. He means that all power sources can be used for on-site rescue and other emergency lighting time required by general countries should meet 90 minutes.