To avoid the electrical circuit overload condition occurs in process of using household, the electrical circuit design is necessary. This thesis mainly expounds a multi-storey residential electrical system design, including power supply design, load classification, load calculation, lighting design, layout and installation of sockets, grounding lightning protection design and weak design. The design focuses on strong electricity parts. The design uses AutoCAD software to design drawings and completes a total of 15 drawings. With the electrical design, lighting and household appliances can use safety and easily.
