毕业设计建筑电气

编号（学号）：13244031

毕业设计

（ 2013 届本科）

题目：办公楼供配电系统的电气设计

学院：信息与电气工程学院

专业：农业电气化与自动化

姓名：王大伟

指导教师：石敏惠

完成日期： 2013年6月10日

毕业设计任务书

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毕业设计指导记录

农业大学毕业设计考核表

论文题目：办公楼供配电系统的电气设计

：王大伟学号：13244031专业：农业电化与自动化

目录

摘要 (1)

ABSTRACT (2)

前言 (3)

1 绪论 (4)

1.1 建筑电气设计概述 (4)

1.2 设计要求 (4)

1.3 设计容 (5)

2 负荷计算及电源电压选择和配电系统布置 (6)

2.1 负荷的分类及选择 (6)

2.2 负荷计算方法的选择 (6)

2.3 全楼负荷计算 (7)

2.4 供电电源电压的选择 (8)

2.5 配电系统的布置 (8)

3 照明系统设计 (10)

3.1 照明设计概述 (10)

3.2 照明设计步骤 (10)

3.3 照度标准 (11)

3.4 照明光源的选择 (11)

3.5 照明灯具的选择 (11)

3.6 照度和照明方式选择 (12)

3.7 办公楼一般照明原则 (12)

3.8 照明计算 (13)

4 低压动力系统设计及室线路敷设 (15)

4.1 启动方式的选择 (15)

4.2 主电路的设计 (15)

4.3 控制电路的设计 (16)

4.4 室低压导线敷设 (18)

4.5 电缆敷设 (19)

4.5.1电缆敷设的一般要求 (20)

4.6 封闭式母线敷设 (22)

5 防雷与接地 (23)

5.1 防雷 (23)

5.2 保护接地 (24)

6 结论 (26)

参考文献 (27)

致 (28)

附录 (29)

摘要

本设计根据国家相关规，以实现安全用电、节约能源为目标，应用现代电气技术，完成了在建筑工程中办公楼供配电系统的电力设计。在供配电系统中，根据负荷等级，确定供电方式及系统方案；为保证供电的经济性和可靠性，设计中采用放射式接线；并运用需要系数法进行计算负荷，按照规定选择保护电器、电线电缆，以达到安全用电和节约能源的目的。

在设计过程中主要包括负荷计算、照明、动力、防雷接地，以及配电系统供电电源和电压的选择和设备选型。照明系统主要说明一般照明灯具及插座的选择，照度及照明计算负荷计算，应急照明的选择及安装等，用利用系数法进行计算，计算出各个房间合适的灯具数量。动力系统主要为消防水泵、空调，送风机、排风排烟机等电机设备的主电路及控制电路和火灾自动报警及消防联动控制系统的设计；防雷接地系统包括防雷等级及各种防雷措施，接地选择和测试方法。配电及布线方面，设计出各个供电回路相应的配电箱及走线方式，计算出各回路的计算负荷，最后选择好各个回路所需的线缆型号和保护器件型号，满足正常生活和安全的需要。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型号。关键词：安全用电；节约能源；照明系统；动力系统；火灾自动报警及消防联动控制系统；防雷接地系统

Abstract

The design according to the relevant national standards, in order to achieve safe use of electricity, saving energy as the goal, the application of modern electrical technology, completed the building in construction of power supply and distribution system design. In the supply and distribution system, according to the load level, ensure the power supply and system solutions; to ensure the economic power and reliability, the design of radial wiring; coefficient method and the use of the computational load required, in accordance with the provisions of protection of electrical options, wire and cable, in order to achieve safe use of electricity and energy conservation purposes.

In the design process, including load calculations, lighting, power, lightning protection and grounding, as well as power supply and distribution system voltage selection and equipment selection. Lighting system mainly describes the general lighting and socket options, illumination and lighting calculation load calculation, selection and installation of emergency lighting, etc., are calculated by using the coefficient method to calculate the appropriate number of lamps in each room. Power system mainly for fire pumps, air conditioning, blowers, exhaust smoke machines and other electrical equipment, the main circuit and control circuit and automatic fire alarm and fire control system design; lightning protection and grounding systems include a variety of grades and Lightning Lightning measures ground selection and testing methods. Distribution and cabling, power supply circuit design of each corresponding distribution box and alignment methods to calculate the computational load on each circuit, and finally choosing the cables required for each circuit protection device models and models to meet the normal life and safety needs. Load calculation is determining the wire section, the model and the model of circuit breakers and other electrical distribution equipment.

Key words：Safe use of electricity；Energy conservation；Lighting system；Power system；

Lightning Protection Systems