某大厦供配电一次部分设计14层_本科毕业设计(论文)

摘要

本论文主要阐述了某办公楼各系统电气设计的设计依据、原则和方法及设计选择的结论。电能是现代工业生产的主要能源和动力，在整个国民经济生活中应用极为广泛，不仅改善了人们的工作环境，而且大大提高了劳动生产率及人们的生活质量，电力系统要能够很好地为生产生活服务，并做好节能工作，就必须满足安全可靠、优质经济的要求。在现代化城市电网中，供配电系统一次接线设计显得极为重要。本论文共包括6章内容，前四章主要包括强电部分设计；第五、六章主要包括弱电部分及消防设计。

强电部分主要内容包括：低压配电系统、照明系统及防雷接地系统的设计，其中包括负荷计算、低压电气设备选择等。

弱电部分主要内容包括：有线电视、公共广播系统、闭路电视监控及综合布线系统的设计。

消防部分主要内容包括：报警系统、联动系统的设计等。

本办公楼电气设计为毕业设计，其目的是通过设计实践，综合运用所学知识，理论联系实际，锻炼独立分析和解决建筑电气设计问题的能力，为未来的工作奠定坚实的基础。

[关键词]电气设计，安全可靠，供配电系统，应急电源

Abstract

This thesis mainly explains the electrical design basis, principle, methods and the conclusion of the design choice in each system in the design of certain office building. The electricity is modern industrial production, the main sources of energy and motive force, in the whole national economy in life are widely, not only improve the working environment, and greatly improve the labor productivity and the quality of people's lives, power system to perfectly for production and life service, and completes the energy conservation work, we must meet the safe and reliable, high-quality economy requirements. In modern city of power grids, power-supply once wiring design appears very important.The thesis includes six Chapters. Previous four Chapters are mostly about the design of the forceful electric power Part; Chapter 5 and 6 are mostly about the design of the light current and fire-fighting.

The part of the forceful electric power mainly including: the distribution system of the low voltage, lighting system and rounding for lightening systematical compose; among others include load calculation, illumination calculation.

The part of the light current mainly including: CATV, Public Broadcasting System, Closed Circuit Monitoring TV and Premises Distribution System and so on.

The part of the fire-fighting mainly including: the design of the warning system and linked system etc.

This electrical design of the office building is a graduation design，The purpose of this design is to give us a chance of synthetical usage of the knowledge we have learned. Besides, it can train our ability to analyze and solve practical problems in Construct electricity in dependently so that the theory is connected with practice and a solid base is made in favor of future work.

【Key words】electrical design，safe and reliable，power supply and distribution system，emergency power

目录

摘要 ............................................................... I Abstract ............................................................ I I 引言 .. (1)

1 工程概述 (2)

1.1 建筑电气概况 (2)

1.2 设计原则 (2)

1.3 设计内容 (2)

2 配电系统设计 (5)

2.1 负荷分析及供电要求 (5)

2.1.1 负荷等级分类 (5)

2.1.2 供电要求 (5)

2.2 短路计算 (6)

2.3 负荷计算 (8)

2.3.1 一级负荷设备的负荷计算 (9)

2.3.2 照明负荷（包括电源插座）设备的负荷计算 (10)

2.4低压断路器选择 (12)

2.5 电流互感器选择 (13)

2.6 电力线缆的选择 (15)

2.6.1 线缆截面选择原则 (15)

2.6.2 选择结果 (15)

2.7 无功补偿设备选择 (16)

2.8 低压配电屏的选择 (16)

2.9 配电方式 (17)

3 照明系统设计 (18)

3.1 总则 (18)

3.2 照明光源选择原则 (18)

3.3 照明灯具选择原则 (18)

3.4 照度和照明方式选择 (19)

3.5 一般照明设计 (19)

3.5.1 办公照明设计原则 (19)

3.5.2 商场照明设计原则 (19)

3.5.3 设计结果 (20)

3.6 应急照明设计 (20)

3.6.1 应急照明分类 (20)

3.6.2 应急照明灯具选择 (21)

3.6.3 应急照明灯具布置 (21)

3.6.4设计结果 (21)

3.7 照度计算 (21)