弱(ruo)電(dian)(dian)(dian)機房也(ye)叫弱(ruo)電(dian)(dian)(dian)間。所謂弱(ruo)電(dian)(dian)(dian)是(shi)針對電(dian)(dian)(dian)力、照(zhao)明(ming)用電(dian)(dian)(dian)相對而言的(de)(de)。通(tong)常情(qing)況下，把電(dian)(dian)(dian)力、照(zhao)明(ming)用的(de)(de)電(dian)(dian)(dian)能(neng)稱(cheng)為(wei)強(qiang)電(dian)(dian)(dian);而把傳(chuan)播信(xin)(xin)號、進行信(xin)(xin)息交換的(de)(de)電(dian)(dian)(dian)能(neng)稱(cheng)為(wei)弱(ruo)電(dian)(dian)(dian)。強(qiang)電(dian)(dian)(dian)的(de)(de)處理(li)對象是(shi)能(neng)源(電(dian)(dian)(dian)力)，其特(te)點(dian)是(shi)電(dian)(dian)(dian)壓高、電(dian)(dian)(dian)流大、功耗大、頻率低，主要考慮(lv)的(de)(de)問(wen)題是(shi)減小損耗、提高效率。

弱電工程包括電視工程、通信工程、消防工程、保安工程、影像工程等等和為上述工程服務的綜合布線工程。弱電是針對強電而言的。強電=(380/220)、高壓不管。 弱電井是(shi)用(yong)來敷設(she)(she)弱(ruo)(ruo)(ruo)電(dian)(dian)(dian)線(xian)路(lu)(纜(lan))的(de)一個(應(ying)該說是(shi))通道.弱(ruo)(ruo)(ruo)電(dian)(dian)(dian)井在指定的(de)樓(lou)層會(hui)設(she)(she)制檢(jian)查(cha)口,方(fang)便(bian)(bian)給專業工作人員(yuan)檢(jian)查(cha)弱(ruo)(ruo)(ruo)電(dian)(dian)(dian)線(xian)路(lu)(纜(lan))用(yong)的(de). 弱(ruo)(ruo)(ruo)電(dian)(dian)(dian)線(xian)路(lu)(纜(lan))在弱(ruo)(ruo)(ruo)電(dian)(dian)(dian)井里敷設(she)(she)即可以保(bao)護弱(ruo)(ruo)(ruo)電(dian)(dian)(dian)線(xian)路(lu)(纜(lan))減(jian)少人為的(de)破壞,又可方(fang)便(bian)(bian)專業施工人員(yuan)定時檢(jian)查(cha)維護,而且線(xian)路(lu)(纜(lan))從弱(ruo)(ruo)(ruo)電(dian)(dian)(dian)井走(zou),不(bu)會(hui)影響(xiang)大(da)樓(lou)的(de)整體(ti)影響(xiang),比(bi)較美觀. 弱(ruo)(ruo)(ruo)電(dian)(dian)(dian)也不(bu)僅僅是(shi)指通訊,其實有線(xian)電(dian)(dian)(dian)視線(xian)(纜(lan))、消防報警(jing)線(xian)(纜(lan))等等都屬于弱(ruo)(ruo)(ruo)電(dian)(dian)(dian).