This paper mainly elaborates the design basis, the design principle and the design methods of a hotel building electrical system. This paper includes four chapters: the electrical design description, the power supply and distribution system design, the lighting system design, the weak electricity system design. The electrical design description includes the design purpose, the design principle, the design basis and the design range. The power supply and distribution system design includes power supply design and load calculation. The lighting system design includes illumination way, illumination type, lamps and lanterns choice, degree of illumination computation, wire system of laying, lighting system design. The weak electricity system design includes monitoring system, telephone and network systems and cable television system. This hotel electrical design regard as a graduation project, whose aim is to exercise the ability to analyze and solve problems about construction electrical design through the design practice, the comprehensive use of knowledge and integrating theory with practice. It will lay the solid foundation for the later work.
Keywords：Construction electrical、Load calculation、Illumination、Weak electricity
