我國電(dian)線(xian)電(dian)纜(lan)產業(ye)(ye)發(fa)展已經(jing)具(ju)有較長時間的(de)歷史，形成(cheng)了(le)成(cheng)熟的(de)產業(ye)(ye)鏈和(he)完(wan)整(zheng)(zheng)的(de)工業(ye)(ye)體系，參與競(jing)爭的(de)企(qi)業(ye)(ye)數量眾(zhong)多，2018年我國電(dian)線(xian)電(dian)纜(lan)行(xing)業(ye)(ye)規上企(qi)業(ye)(ye)數量已經(jing)達到了(le)4049家，企(qi)業(ye)(ye)集(ji)(ji)中(zhong)在華東地區。我國線(xian)纜(lan)行(xing)業(ye)(ye)呈現出(chu)以大型企(qi)業(ye)(ye)為主(zhu)，外資企(qi)業(ye)(ye)和(he)中(zhong)小(xiao)企(qi)業(ye)(ye)為輔的(de)競(jing)爭格局。從行(xing)業(ye)(ye)整(zheng)(zheng)體來看，我國企(qi)業(ye)(ye)的(de)產品主(zhu)要集(ji)(ji)中(zhong)在中(zhong)低(di)端市場，行(xing)業(ye)(ye)集(ji)(ji)中(zhong)度低(di)，中(zhong)小(xiao)企(qi)業(ye)(ye)占比 95%以上，前(qian)十名企(qi)業(ye)(ye)僅(jin)占國內市場份額的(de) 7%至(zhi) 10%。

目前(qian)，我國(guo)墻壁開關插(cha)座(zuo)行業(ye)(ye)參與者眾多(duo)，墻壁開關插(cha)座(zuo)行業(ye)(ye)從業(ye)(ye)企(qi)(qi)業(ye)(ye)已達2000家，形(xing)成了(le)廣東、江浙(zhe)、北京三大生產基地(di)。以西門子、松下為代表的外資品牌(pai)通過并購國(guo)內(nei)企(qi)(qi)業(ye)(ye)或(huo)設立銷售代理(li)的方式進(jin)入(ru)市(shi)場(chang)，形(xing)成了(le)跨(kua)國(guo)公司與國(guo)內(nei)本土企(qi)(qi)業(ye)(ye)并存的競爭(zheng)格(ge)局。市(shi)場(chang)主(zhu)要(yao)國(guo)外競爭(zheng)品牌(pai)有(you)西門子、施耐德、羅格(ge)朗、西蒙與松下；主(zhu)要(yao)國(guo)內(nei)本土競爭(zheng)品牌(pai)有(you)公牛、正泰、德力(li)西、歐普、飛(fei)雕與鴻(hong)雁。

目前我國插座生產企(qi)業(ye)超過了1500家，其中市場知名(ming)品牌僅(jin)有20個(ge)左右，公牛品牌插座產品占據最(zui)大的市場份額，約(yue)達20%，插座生產企(qi)業(ye)依(yi)然(ran)以中小企(qi)業(ye)為主。從市場需(xu)求上看，消費者不再僅(jin)僅(jin)滿(man)足于產品的質量，開始(shi)重視產品的外觀(guan)和功(gong)能，用電安(an)全(quan)更是(shi)成為消費者的根(gen)本需(xu)求。

空(kong)(kong)(kong)氣開(kai)關(guan)(guan)(guan)應用在(zai)我們的(de)(de)家(jia)庭中(zhong)，屬(shu)于(yu)低壓斷(duan)(duan)(duan)(duan)路器的(de)(de)一種，只(zhi)要(yao)電(dian)路中(zhong)電(dian)流(liu)超過了空(kong)(kong)(kong)氣開(kai)關(guan)(guan)(guan)的(de)(de)額定電(dian)流(liu)以(yi)后，空(kong)(kong)(kong)氣開(kai)關(guan)(guan)(guan)就(jiu)會(hui)自(zi)動(dong)斷(duan)(duan)(duan)(duan)開(kai)，切斷(duan)(duan)(duan)(duan)電(dian)源(yuan)，防止(zhi)電(dian)路由于(yu)電(dian)流(liu)過大而燒毀的(de)(de)影響(xiang)。空(kong)(kong)(kong)氣開(kai)關(guan)(guan)(guan)在(zai)自(zi)動(dong)斷(duan)(duan)(duan)(duan)開(kai)開(kai)關(guan)(guan)(guan)的(de)(de)時候會(hui)產生一個電(dian)弧(hu)，而空(kong)(kong)(kong)氣開(kai)關(guan)(guan)(guan)就(jiu)是采用空(kong)(kong)(kong)氣作為滅弧(hu)的(de)(de)介質(zhi)來進(jin)行自(zi)動(dong)切斷(duan)(duan)(duan)(duan)電(dian)路的(de)(de)。空(kong)(kong)(kong)氣開(kai)關(guan)(guan)(guan)是根(gen)據斷(duan)(duan)(duan)(duan)路器滅弧(hu)的(de)(de)方(fang)式來劃分從而得出的(de)(de)一個名稱，空(kong)(kong)(kong)氣開(kai)關(guan)(guan)(guan)滅弧(hu)的(de)(de)介質(zhi)就(jiu)是空(kong)(kong)(kong)氣。

繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)是一(yi)種(zhong)電(dian)(dian)(dian)(dian)控制器(qi)(qi)件(jian)，是當(dang)輸入量(liang)（激勵量(liang)）的變化(hua)達(da)到規(gui)定要求時，在電(dian)(dian)(dian)(dian)氣(qi)輸出(chu)電(dian)(dian)(dian)(dian)路中(zhong)使被控量(liang)發(fa)生預定的階躍變化(hua)的一(yi)種(zhong)電(dian)(dian)(dian)(dian)器(qi)(qi)。從(cong)我(wo)國繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)應用領域來(lai)看(kan)，通信和(he)(he)工業控制、家電(dian)(dian)(dian)(dian)和(he)(he)汽(qi)車仍是繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)最大市(shi)(shi)場(chang)(chang)。據(ju)從(cong)市(shi)(shi)場(chang)(chang)形勢來(lai)看(kan)，繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)是一(yi)個量(liang)大，服務面廣，技術含量(liang)不高(gao)，利潤微薄，市(shi)(shi)場(chang)(chang)潛力較大的競爭(zheng)性行業。中(zhong)國是全(quan)球(qiu)(qiu)繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)的主(zhu)要生產(chan)(chan)基地(di)，產(chan)(chan)量(liang)約占(zhan)全(quan)球(qiu)(qiu)總產(chan)(chan)出(chu)的 50%以上。

中國開(kai)(kai)關電源行(xing)業市場(chang)化程度(du)較高(gao)，呈(cheng)現完全(quan)競爭的(de)市場(chang)格局。全(quan)國開(kai)(kai)關電源的(de)供應商主要(yao)分布在華北、華東(dong)和華南，分布在其他(ta)區域的(de)企業只(zhi)有(you)26%。從(cong)產業集(ji)群來看，主要(yao)經形成了(le)珠三角地(di)區、長(chang)三角地(di)區，以及北京、天(tian)津(jin)、河北附近的(de)首(shou)都經濟圈地(di)區三大產業區，另外在西安、武漢也有(you)少量開(kai)(kai)關電源企業分布。

配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)一(yi)般是家庭(ting)用的(de)(de)，而配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)柜則多用在集中(zhong)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)中(zhong)，比如說工業(ye)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)和(he)建(jian)筑(zhu)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)等(deng)，配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)和(he)配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)柜都屬于成(cheng)套(tao)設備，配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)屬于低壓成(cheng)套(tao)設備，配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)柜有高壓有低壓。我(wo)(wo)國的(de)(de)配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)行業(ye)已經逐漸(jian)的(de)(de)發展成(cheng)為(wei)世(shi)界先進的(de)(de)配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)加工和(he)出口(kou)大國，成(cheng)為(wei)了世(shi)界配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)生產大國之一(yi)，其中(zhong)，我(wo)(wo)國的(de)(de)配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)行業(ye)里(li)有至少(shao)有70%為(wei)民營企業(ye)，為(wei)中(zhong)國配(pei)(pei)(pei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)箱(xiang)(xiang)行業(ye)發展的(de)(de)主(zhu)力軍。

中(zhong)國低壓(ya)電(dian)器(qi)生產企(qi)業(ye)(ye)主要(yao)集中(zhong)在(zai)北(bei)京、天津、遼寧、上海(hai)、江蘇、浙江和(he)廣東等地(di)，企(qi)業(ye)(ye)數(shu)量(liang)2000家左右(you)，其(qi)中(zhong)外資(zi)企(qi)業(ye)(ye)約(yue)占10%，內(nei)資(zi)企(qi)業(ye)(ye)占90%左右(you)，具有一定(ding)規模的(de)企(qi)業(ye)(ye)約(yue)110家。國內(nei)低壓(ya)電(dian)器(qi)的(de)中(zhong)高端市(shi)場(chang)原(yuan)主要(yao)由外資(zi)企(qi)業(ye)(ye)為主導，隨著國內(nei)企(qi)業(ye)(ye)的(de)產品(pin)研(yan)發(fa)及(ji)技術不斷提(ti)升(sheng)，部(bu)分優秀(xiu)國內(nei)企(qi)業(ye)(ye)憑借其(qi)整體系統解決方案能力及(ji)長期積累(lei)的(de)品(pin)牌影響力，也逐(zhu)步參(can)與到中(zhong)高端市(shi)場(chang)競爭中(zhong)。

電(dian)(dian)(dian)氣(qi)(qi)設(she)備(bei)是在(zai)電(dian)(dian)(dian)力系統中對發電(dian)(dian)(dian)機、變(bian)壓器、電(dian)(dian)(dian)力線路、斷路器等(deng)設(she)備(bei)的(de)統稱。國內電(dian)(dian)(dian)氣(qi)(qi)設(she)備(bei)企(qi)業基本(ben)是以低端產(chan)品為主，高端產(chan)品基本(ben)為歐(ou)美(mei)國家所把(ba)持，在(zai)全球銷售的(de)電(dian)(dian)(dian)氣(qi)(qi)設(she)備(bei)中，很多(duo)都是從國內生產(chan)并出口的(de)，中國已經成為世界主要(yao)的(de)電(dian)(dian)(dian)氣(qi)(qi)設(she)備(bei)供應(ying)商(shang)。