一、電氣和電器有什么區別和聯系
電(dian)(dian)(dian)(dian)氣(qi)(qi)是以電(dian)(dian)(dian)(dian)能(neng)、電(dian)(dian)(dian)(dian)氣(qi)(qi)設(she)備(bei)和電(dian)(dian)(dian)(dian)氣(qi)(qi)技術為手(shou)段來(lai)創造、維持與(yu)改(gai)善限(xian)定空間和環境的一門科學。電(dian)(dian)(dian)(dian)器(qi)指凡是根據外界(jie)特定的信號和要(yao)求,自動(dong)或手(shou)動(dong)接通或斷開電(dian)(dian)(dian)(dian)路,繼(ji)續或連續地(di)改(gai)變電(dian)(dian)(dian)(dian)路參數,實現對電(dian)(dian)(dian)(dian)路的切換、控制、保(bao)護、檢測及(ji)調節(jie)的電(dian)(dian)(dian)(dian)氣(qi)(qi)設(she)備(bei)。電(dian)(dian)(dian)(dian)子和電(dian)(dian)(dian)(dian)器(qi)都屬于(yu)電(dian)(dian)(dian)(dian)氣(qi)(qi)。
二、電氣設備的防火措施
電氣(qi)火災通常是因為(wei)電氣(qi)設(she)備的絕緣老(lao)化、接頭松動、過載或短路等(deng)因素導致過熱(re)而引起的,危害非(fei)常大(da)。為(wei)防止電氣(qi)火災事故的發生,必須采取防火措施,下面(mian)簡單介紹一下:
1、經常檢查電氣(qi)設(she)備(bei)的運行情(qing)況,檢查接頭是否(fou)松(song)動,有無(wu)電火花發生(sheng),電氣(qi)設(she)備(bei)的過載、短(duan)路保護裝置性能是否(fou)可靠,設(she)備(bei)絕緣是否(fou)良好。
2、合理選用(yong)電(dian)氣(qi)設(she)備,有(you)易(yi)燃易(yi)爆物品的場(chang)所,安(an)裝使(shi)用(yong)電(dian)氣(qi)設(she)備時,應(ying)選用(yong)防爆電(dian)器(qi)(qi),絕緣導線必須密封敷(fu)設(she)于鋼管內。應(ying)按爆炸(zha)危險場(chang)所等級選用(yong)、安(an)裝電(dian)器(qi)(qi)設(she)備。
3、保(bao)持安全(quan)的(de)安裝位置,保(bao)持必要(yao)的(de)安全(quan)間距是電(dian)氣(qi)防(fang)(fang)火的(de)重要(yao)措施之一(yi)。為防(fang)(fang)止電(dian)氣(qi)火花(hua)(hua)和危險高溫引起火災(zai),凡能產生(sheng)火花(hua)(hua)和危險高溫的(de)電(dian)氣(qi)設備周(zhou)圍不應堆放易(yi)燃易(yi)爆(bao)物品。
4、保持電氣設備正常運行,電氣品牌產品運行中產生(sheng)的(de)(de)火(huo)(huo)花和(he)危險高溫是引起(qi)電氣火(huo)(huo)災的(de)(de)重要原因。為(wei)控制(zhi)過大(da)的(de)(de)工作火(huo)(huo)花和(he)危險高溫。電氣設備應由(you)經培訓考核合格(ge)的(de)(de)人員操(cao)作使用和(he)維(wei)護保(bao)養(yang)。
5、通(tong)(tong)(tong)風,在易燃易爆危險場所運行的電氣設備,應有良好的通(tong)(tong)(tong)風,以降低(di)爆炸性混(hun)合(he)物的濃度。其通(tong)(tong)(tong)風系(xi)統應符(fu)合(he)有關要求。
6、接(jie)地(di),在易燃易爆危險場(chang)(chang)所的接(jie)地(di)比一般場(chang)(chang)所要求高。不論其電(dian)壓高低,正(zheng)常不帶(dai)電(dian)裝置均(jun)應按有(you)關規(gui)定可靠接(jie)地(di)。