This drawing is the design and construction drawing of a high-rise residential building for the elderly in Dalian, Liaoning Province (including electricity, water, heating and construction). There are 4 majors in total. Including: description, plan, vertical section, detail drawing and node detail, legend of power distribution design description, power distribution system diagram, main line, power socket plan of each floor, power line, socket plan of machine room floor, lighting plan of each floor, machine room floor