铁路局西院住宅小区12号楼照明供配电系统设计(毕业设计论文参考模板)精选.docVIP

摘 要 本设计为兰州?铁路局下西院?住宅小区12?号楼照明供配?电系统设计。设计负荷等级?为三级，进线电压为3?80/220V，户用电负荷为?6千瓦。设计内容包括?：照度计算、负荷计算、导线及其截面?的选择、低压断路器电?流整定、设备制作及安?装、等电位联接安?装及防雷与接?地系统设计。 本设计采用单?位容量法进行?照度计算，采用需用系数?法进行负荷计?算，按导线长期允?许温升和电压?损失选择导线?截面，按线路最大工?作电流和线路?保护选择低压?断路器。照明回路和插?座回路分别由?不同回路供电?，并在插座回路?安装剩余电流?保护器。按三类防雷建?筑物进行防雷?设计，接地采用TN?—S系统，并设计总等电?位联结和局部?等电位联结系?统。 设计符合国家?相关技术规程?规范要求，设备选型合理?，满足使用功能?要求，能较好地指导?施工。 关键词：住宅；照明；负荷计算；供配电系统；防雷 Abstra?ct The design? is entitl?ed with electr?ical illumi?nation? design? on the 12th reside?ntial buildi?ng locate?d in Xiaxi Courty?ard of Lanzho?u Railwa?y Bureau?. The load level of the projec?t is design?ed as the 3rd hierar?chy, and input voltag?e level is presen?ted by 380/220V, and househ?old load is design?ed as 6kW. The design? conten?ts includ?e illumi?nation? calcul?ation, load calcul?ation, and the select?ion of circui?ts and cross sectio?ns, and the curren?t settin?g of low voltag?e breake?r, and equipm?ents making? and instal?lation?, and equiot?ential? bondin?g, and as well as lighti?ng protec?tion and ground?ing system? and et al. Firstl?y, unit capaci?ty method? is applie?d to implem?ent illumi?nation? calcul?ation, and the needed? coeffi?cient method? is applie?d to implem?ent the load calcul?ation, and the cross sectio?ns of the circui?ts are select?ed accord?ing to long-term allowa?ble temper?ature rise and voltag?e loss, and the low-voltag?e breake?rs are select?ed accord?ing to the maximu?m workin?g curren?t and line protec?tion condit?ions. Socket? and lighti?ng circui?ts are arrang?ed in differ?ent supply? loop, and leakag?e protec?tion breake?r is applie?d in socket? loop. Lighti?ng protec?tion with the 3rd level is design?ed in accord?ance with specif?icatio?ns, and ground?ing system? adopts? TN-S system?, and genera?l equipo?tentia?l connec?tion, togent?her local equipo?tentia?l connec?tion is design?ed. The overal?l design? accord?s with the releva?nt techni?cal regula?tion requir?ements?. Equipm?ents select?ion is reason?able so as to better? me