目  录

摘要····································································4

ABSTRACT····························································5

1前言···································································1

1.1建筑电气发展概况·····················································1

1.2工程概况······························································1

1.3设计内容······························································2

1.4 小结·································································2

2电气照明系统设计····················································4

2.1简介··································································4

2.2照明设计原则··························································4

2.2.1 照明方式的选择原则···············································4

2.2.2 照明种类的选择原则···············································5

2.2.3 照明光源和灯具的选择·············································6

2.2.4 选择合适的照度···················································7

2.3照度计算······························································7

2.3.1各场所功率密度值和照度标准确定····································8

2.3.2照度计算方法······················································9

  2.3.3灯具数量确定·····················································10

2.4插座设计·····························································16

2.4.1插座设计要求····················································16

2.4.2 电源插座的设置高度要求··········································16

  2.4.3插座的选择·······················································17

2.4.4 插座回路功率算················································· 17

2.5应急照明设计·························································18

  2.5.1应急照明分类·················································18

  2.5.2应急照明灯具选择·················································18

2.5.3 应急照明灯具布置················································19

2.5.4 应急照明供电方式及控制方式的确定································19

2.6照明负荷计算方法及导线、断路器的选择原则······························20

2.6.1 照明系统分支线路负荷计算及······································20

2.6.2 导线和断路器的选择 ·············································21

2.7 照明负荷平面图和系统图设计··········································25

2.8 小结································································26

3防雷接地系统设计····················································27

3.1设计原则·····························································27

3.2建筑物防雷计算······················································27

3.3建筑物的防雷措施····················································28

3.4小结································································30

4电视监控系统设计···················································29

4.1电视监控系统概况····················································29

4.2电视监控系统组成····················································29

4.2.1摄像部分························································29

4.2.2传输部分························································32

4.2.3控制部分·························································34

4.2.4显示部分························································34

4.3视频矩阵系统·························································34

4.4电视监控系统配线····················································35

4.5电视监控系统统计及计算··············································35

4.5.1摄像机数量统计表················································35

4.5.2画面处理器和硬盘容量的选择······································36

4.6小结································································37

5电缆电视系统设计···················································38

5.1有线电视系统概述····················································38

5.2  有线电视系统的组成·················································38

5.3有线电视设计原则和一般规定··········································39

5.3.1设计原则和要求··················································39

5.3.2一般规定························································41

5.4同轴电缆的选用······················································42

5.5本工程电视电缆设计··················································43

5.6小结································································46

6火灾自动报警及联动控制系统·······································47

6.1火灾自动报警系统简介和设计总则······································47

6.2火灾探测器选择·······················································48

6.2.1火灾探测器的选择················································48

6.2.2感烟探测器数量确定··············································49

6.3带电话插口的手动火灾报警按钮的选择··································50

6.4消防广播····························································50

6.5消防电话····························································51

6.6消防联动控制························································51

6.6.1正常状态························································51

6.6.2确认火灾························································51

6.6.3消防联动························································51

6.7消防电源····························································52

6.8导线选择及敷设······················································52

6.9消防模块选型························································53

6.10 小结·······························································54

7总结·································································55

谢辞···································································56

参考文献······························································57

摘 要

本说明书主要阐述了某财政大厦电气系统设计的原则、方法及设计选择的结果，着重于建筑电气的电气照明系统设计，电视监控及电视电缆系统设计，防雷接地系统设计以及火灾报警与联动控制系统的设计。

照明系统主要包括照明部分，插座部分和应急照明部分，根据国家规范选择各房间合适的光源、灯具及照度等，通过对照明线路负荷的精确计算，合理的选择了导线和各种设备的型号。电视监控系统主要论述了摄像机的选型，监控系统和摄像机容量和个数选择。有线电视系统设计中，根据房间的用途及大小，设计有线电视信号插座，选择正确的放大器，分配器以及分支器。在防雷接地系统设计中，根据防雷等级合理选择防雷装置及接地形式。火灾自动报警与联动控制系统的设计主要是火灾报警系统、广播系统、消防电话系统和联动系统的设计。

关键词：照明；电视监控；电视电缆；防雷接地；火灾自动报警及联动

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