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什么是一级、二级、三级配电箱?
Date:2019-04-15 | Views:2243

  临时用电就是在某个地方施工需要用电,一级配电箱就是从变压器引入三相电源,地线,零线。

  二级配电箱;就是从一级配电箱电源线至临时用电,

  三级配电箱;就是电器设备自身的控制柜。

  一级配电箱:施工用电配电柜作建筑工地施工用电用,是专门针对工程施工现场情况比较特殊而设计.符合建设部门有关施工用电规范标准。全套产品能组成完整施工用电三级保护纟统、达到一机一闸一保护的目的,非常适合各类达标工程采用。一级柜采用下进下出线,前开门,主母线采用铜排连接,接触良好,内带计量纟统.安全美观,防雨箱顶适合野外工作。

  三级配电:即在总配电箱下设分配电箱,分配电箱下设开关箱,开关箱下设用电设备,形成三级配电。“两级保护”主要是指采用漏电保护措施,除在末级开关箱内加装漏电保护器外,还要在上一级分配电箱或总配电箱中加装一级漏电保护器,总体上形成两级保护。“一机、一闸、一漏、一箱、一锁”的原则,即严禁同一个开关电器直接控制二台及二台以上用电设备(含插座)。

  二级配电箱:

  适用建筑工地施工用电,是专门针对工程施工现场情况比较特殊而设计.符合建设部门有关施工用电规范标准。全套产品能组成完整施工用电三级保护纟统、达到一机一闸一保护的目的。二级箱采用内外门设计,外表喷塑.安全美观,防雨箱顶适合野外工作。

  二级配电箱要离地1.5M放置

  总开关60A——DZ47-63 100A

  照明开关16A——DZ47-63 16A 两相漏电开关

  空调1.5P—20A——DZ47-63 20A两相漏电开关

  电热水器8000W+洗衣机——DZ47-63 60A两相漏电开关(因为没有40A的开关,只有32A的)

  插座开关16A ——DZ47-63 16A

  主要用电器为冰箱、电磁炉、微波炉

  空调开关需要更换,总开关也需要更换。

  总开关不用带漏电。分支开关带漏电保护最好。因为人体通过30mA用致命危险。漏电开关的动作电流是15—30mA

  目前市内配电用线一般都是4平方的,有点已经用到6平方的。最好把2.5平方的换掉

  安全技术防范系统工程图的绘制

  为了提高安全防范系统的工程质量,必须做好安全防范系统工程图的绘制。

  工程图的设计和绘制必须与有关专业密切配合,做好电源容量的预留,管线的预埋和预留,以保证以后能顺利穿线和系统调试。

  工程图的绘制应认真执行绘图的规定,所有图形和符号都必须符合公安bu颁布的“安全防范系统通用图形符号”的规定,以及“工业企业通讯工程设计图形及文字符号标准”。不足部分应补充并加以说明。绘图要清晰整洁,字体规整,原则上要求书写宋体字,力求图纸简化,方便施工。既详细而又不烦琐地表达设计意图。

  绘制图纸要求主次分明,应突出线路敷设。电器元件和设备等为中实线,建筑轮廓为细实线,凡建筑平面的主要房间,应标示房间名称,绘出主要轴线标号。

  各类有关的防范区域,应根据平面图,明显标出,以检查防范的方法以及区域是否符合设计要求,探测器及摄象机布置的位置力求准确,墙面或吊顶上安装的设备要标出距地面的高度(即标高)。相同的平面,相同的防范要求,可只绘制一层或单元一层平面,局部不同时,应按轴线绘制局部平面图。

  比例尺的规定:凡在平面图上绘制多种设备,而数量又较多时,宜采用1:100。但面积很大,设备又较少,能表达清楚的话可采用1:200。

  剖面图复杂的宜用1:20,1:30,甚至1:5。以比例关系细小部分清晰度而定。

  施工图的设计说明力求语言简练,表达明确。凡在平面图上表示清楚的不必另在说明中重复叙述。凡施工图中未注明或属于共性的情况,以及图中表达不清楚者,均需加以补充说明。如防范区域、空间防范的防范角等。单项工程可以在首页图纸的右下方,图角的上侧方列举说明事项。如一系统子项较多,属于统一性的问题,均应编制总说明,排列在图纸的首页。说明内容一般按下列顺序:

  探测器、摄像机等前端设备的选用、功能、安装;

  报警控制器和视频矩阵切换主机等中心控制设备的功能、容量、特点及安装;

  管线的敷设,接地要求,做法。室外管线的敷设,电缆敷设方式等。
 

  河南博泰电力工程有限公司作为河南专业的电力安装公司,以“诚信高效、团结进取、品质优良、售后完善”的经营理念,为顾客打造优质的工程,最大限度满足客户需求。

  标签:博泰电力河南电力公司郑州电力公司河南博泰电力

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