A central business plaza has 33 floors above the ground, 3 floors underground, 7 floors of podium building, two towers A and B, frame structure, with a total construction area of 140000 square meters. The building belongs to a kind of high-rise civil building. The electrical equipment for fire fighting, network, communication equipment, power transformation and distribution substation, aviation obstacle lighting, fan room lighting, diesel generator room, water pump room and other lighting equipment in the building are as follows: