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电气施工识图基础培训课件

  • 2026-06-15 23:31:08
电气施工识图基础培训课件
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一、电气工程项目的分类及简介

1.电气工程项目分类

电气工程是指某建筑的供电、用电工程,通常包括以下几类项目。

(1)外线工程

外线是指室外电源供电线路,主要是架空电力线路和电缆线路。

(2)变配电工程

变配电工程是指建设由变压器、高低压配电柜、电缆、母线、继电保护与电气计量等设备构成的变配电所。

(3)室内配线工程

室内配线主要有线管配线、线槽桥架配线、瓷瓶配线、钢索配线等。

(4)电力工程

电力工程包括设置各种风机、水泵、电梯、机床、起重机等动力设备(各种形式的电动机)和控制器与动力配电箱。

(5)照明工程

照明工程包括设置照明灯具、开关、插座、电扇、照明配电箱等设备。

(6)防雷工程

防雷工程包括设置建筑物、电气装置和其他设备的防雷设施。(7)接地工程

接地工程包括设置各种电气装置的工作接地和保护接地系统。

(8)弱电工程

弱电工程包括设置消防报警系统,安保系统,广播、电话、闭路电视系统等。

(9)发电工程

发电工程一般为设置备用的自备柴油发动机组。

2.电气工程项目简介

(1)送电线路工程图

1)电力架空线路工程图:反映架空线路的全貌,标明线路的某些细节结构。它由杆塔安装图、架空线路平面图、架空线路断面图、杆位明细表、电力架空线路安装曲线图等组成。

2)电力电缆线路工程图:表现电缆敷设、安装、连接的具体位置与工艺要求。它一般由电缆敷设平面图、电缆排列剖面图、电缆施工工艺图等组成。

(2)变配电工程图

1)变配电系统图:表示将电能从电源输送、降压并分配到用户的电气联系图,所以也称电气主接线图或一次设备接线图。它所描述的内容是系统的基本组成和主要特征,一般采用单线图表示。

2)变配电设备布置图:用来表明电气设备的平面和空间位置及安装方式、安装尺寸、线路走向等,由平面图、立面图、剖面图等组成。

3)二次设备原理图:用来反映变配电系统中二次设备的继电保护、电气测量、信号报警、控制及操作等系统的工作原理。

4)二次设备安装接线图:用来反映二次设备及线路的安装、接线调试、查线、维护和故障处理等技术细节。

(3)动力及照明工程图

1)动力及照明电气系统图:表示建筑物内外的电力、照明及其他日用电器的供电与配电,是电气系统功能的集中体现。

2)动力及照明平面图:表示建筑物内动力设备、照明设备和配电线路的平面布置,是一种位置简图(动力设备一般指三相设备,照明设备一般指单相设备)。

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  1. CONNECT:[ UseTime:0.001113s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001481s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.004107s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000725s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001454s ]
  6. SELECT * FROM `set` [ RunTime:0.000580s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001468s ]
  8. SELECT * FROM `article` WHERE `id` = 508999 LIMIT 1 [ RunTime:0.011034s ]
  9. UPDATE `article` SET `lasttime` = 1781881384 WHERE `id` = 508999 [ RunTime:0.040177s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000798s ]
  11. SELECT * FROM `article` WHERE `id` < 508999 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001364s ]
  12. SELECT * FROM `article` WHERE `id` > 508999 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.013628s ]
  13. SELECT * FROM `article` WHERE `id` < 508999 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001763s ]
  14. SELECT * FROM `article` WHERE `id` < 508999 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002725s ]
  15. SELECT * FROM `article` WHERE `id` < 508999 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002687s ]
0.285729s