花园式住宅供配电设计.rar

摘要:本设计的主要内容包括电力、照明、防雷接地、电视电话、网络等系统，以及配电系统、负荷计算、供电电源和电压的选择和设备选型。

　　　其中电力系统主要包括确定电压等级、供电方式。负荷计算主要是确定导线截面、型号和断路器等配电设备的选型。

　　　照明系统主要包括照度计算，照明光源类型和灯具型号的选择，确定灯具的布置方案和照度计算。 

　　　接地防雷的设计中，采用避雷带保护方式。通过扁钢与地基钢筋结构相接，防雷、接地公用接地体，既保障了接地安全，又节约了接地设备。

　　　有线电视、电话及网络系统设计：有线电视器件的选择与计算一定满足用户端所规定的电平值，采用分配——分支结构进行有线电视信号的分配。电话系统采用电话分线箱分配方式。弱电主要是做好预留预埋，由其他部门施工调试。　　

关键词：电力系统；照明系统；防雷系统；弱电系统；负荷计算

Abstract:Main content that design originally include electricity , illumination , defend system , video telephone , network ,etc. of fire control, the choices of the power and voltage and equipment selecting type that and calculate , supply power in distribution system , load. 

　　　Among them the power system includes confirming the grade of voltage, power supply way mainly. Load is calculated to be mainly a selecting type of confirming such distribution equipment as wire section, the type and circuit breaker, etc. 

　　　Lighting system include intensity of illumination calculate lamps and the lamp the light source, making sure the lamp arranging project, the choice of illuminating circuit and the choose of protection, socket of quantity mainly.

　　　Lightning protection the lighting fence is a possible lighting protection approach. Through the flat steel reinforced structure and the foundation phase, lightning protection, grounding the common ground, while ensuring the safety of the grounding and grounding equipment savings.

　　　CATV system design: The choice of the cable television. Equipment and the calculation must attain the provision value. The system adopts and assigns the branched structure which carries on the distribution of the wired TV signal. Sub-line telephone system uses the telephone box pattern to meet user requirements. The weak electricity is mainly done well and reserved burying in advance, is constructed and debugged by other departments.

Key words：Power system；Lighting；Lightning protection system；Weak current system；Load calculation

　　　随着高层建筑的不断兴建，用电设备增加，特别是在高层建筑内，空调及电梯负荷的大量使用是电力负荷发生很大变化的一个很重要的因素。如果还按过去仅有照明来统计，计算结果将会使所选的开关及导线截面均偏小，所配置的电表容量偏小，造成经常性的负荷跳闸，超负荷运行而烧坏开关、电表、电线的现象常有发生。准确计算出住宅小区的用电负荷，合理选择配变电设施，才能既满足小区居民现在及将来的用电需要，又能合理降低工程造价、节省投资。