1、兰州交通大学毕业设计（论文） - I - 摘 要 本设计以建筑电气为基础，在低耗、环保、实用的原则下，根据提供的工程设计资 料，参照建筑电气的相关规范和标准，对供配电系统、照明系统、弱电系统及防雷系统 分别进行合理的设计。 照明灯具的布置和照度计算是照明设计的重要组成部分，直接影响照明设计质量。 照度计算的方法有单位功率法、利用系数法、逐点法三种，在本设计中采用单位功率法 确定灯具的安装数目。另外，在本次设计中对灯具的选择、安装也做了详细说明。除此 之外，本论文还主要对负荷计算、低压保护装置的选择、导线的选型做了详细介绍。负 荷计算的方法有需要系数法和二项系数法，本文采用需要系数法进行计算。在
2、低压保护 装置的选择中介绍了断路器和自动开关的选择方法， 在导线选型时， 要考虑导线的材料、 绝缘护套及载流量。 最后，利用 AUTOCAD 及天正电气软件，根据提供的土建施工平面图，画出电气 工程图、配电系统图和弱电图。 关键词：关键词：建筑电气建筑电气；照度计算照度计算；负荷计算负荷计算；系统图系统图 兰州交通大学毕业设计（论文） - II - Abstract The design is based on Building Electricity,in the principle of low energy consumption, environmental protection an
3、d utility, according to the information which is about engineering design, referring to relevant norms and standards which are related to Building Electricity, and then coming up with a reasonable design of power supply and distribution system, lighting system, light-current system, lightning protec
4、tion system respectively. Setting up lighting and calculating illumination are important parts of lighting design, which affect the quality of lighting design directly. The methods of calculating illumination are unit power law, utilizing factor method and By-point method. In this design, the author use unit power law to determine how many lightings should be set up. In addition, the design describs in detail how to select lightings and fix them. Besides, the paper also comprehensively desc
