According to my theory, for a generator with an automatic excitation device: full voltage start requires 6.4 times the engine generator power, 65% self-coupling step-down start requires 2.6 times and star-delta startup requires 2.0. times. If it is a soft starter, it depends on its starting characteristics. It is difficult to quantify with a numerical value.
It must include: fire water system, air conditioning water system
The fire water system Fire water includes fire hydrant system, fire water sprinkler. system, water spray system and gas fire extinguishing system.
The three-story underground water pump room is equipped with two fire hydrant pumps (Shanghai Carrier products), one of which is on standby, and is equipped with a 500 fire-fighting pool M3 to ensure 30 minutes of water supply. in case of infire in a building. Two fire extinguishing pumps (Shanghai Kaiquan products) are installed in the third basement, one of which is in reserve. The building's boiler room and diesel generator room are equipped with water spray systems. The communication room on the underground mezzanine of the building is equipped with a gas fire extinguishing system (FM-200).