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電機維修中誤操作的危害性。

文章出處:maituwangluo.com  |  發布時間:2021/11/2 10:34:40  |  瀏覽次數:206

電機維修中誤操作的危害性。

電(dian)(dian)機(ji)維(wei)(wei)修(xiu)近年來(lai),在(zai)電(dian)(dian)視新(xin)聞(wen)和網(wang)絡新(xin)聞(wen)中(zhong),電(dian)(dian)機(ji)故(gu)障頻(pin)(pin)繁(fan)報(bao)道。汽車事故(gu)的(de)頻(pin)(pin)繁(fan)發(fa)生(sheng)(sheng)是由于一(yi)些工(gong)人在(zai)施工(gong)過程中(zhong)不遵守規則或偷工(gong)減料造(zao)成的(de)。修(xiu)理高壓電(dian)(dian)機(ji)時,應按照國家電(dian)(dian)機(ji)維(wei)(wei)修(xiu)標準的(de)施工(gong)程序規范(fan)進行。正確維(wei)(wei)護高壓電(dian)(dian)機(ji)是減少電(dian)(dian)機(ji)事故(gu)的(de)發(fa)生(sheng)(sheng),保證(zheng)生(sheng)(sheng)命安全。


1.斷電(dian)(dian),維修電(dian)(dian)機(ji)(ji)的(de)(de)(de)第一(yi)(yi)(yi)步(bu)(bu),也是最關鍵(jian)的(de)(de)(de)一(yi)(yi)(yi)步(bu)(bu),就是斷電(dian)(dian)。如果在不停電(dian)(dian)的(de)(de)(de)情況下對電(dian)(dian)機(ji)(ji)進行(xing)維修,電(dian)(dian)機(ji)(ji)的(de)(de)(de)高電(dian)(dian)壓會(hui)對人(ren)體造成傷害,而且高電(dian)(dian)壓的(de)(de)(de)電(dian)(dian)壓系(xi)數(shu)很高,可能(neng)會(hui)造成輕(qing)微的(de)(de)(de)身體殘疾,嚴重時(shi)會(hui)導致死亡。因此,維修電(dian)(dian)機(ji)(ji)時(shi)切斷電(dian)(dian)源是第一(yi)(yi)(yi)步(bu)(bu),也是必(bi)須的(de)(de)(de)。


2.絕(jue)緣。電(dian)(dian)機(ji)(ji)拆(chai)開后,電(dian)(dian)源插頭要用絕(jue)緣材料(liao)(絕(jue)緣布或(huo)絕(jue)緣紙)密(mi)封(feng),外殼(ke)和(he)左螺紋必須(xu)短路接地。人(ren)屬于導體的(de)一種,電(dian)(dian)流可以在(zai)人(ren)體內流動(dong)。為了(le)防止觸電(dian)(dian)造(zao)成電(dian)(dian)機(ji)(ji)事(shi)故造(zao)成人(ren)員傷(shang)亡,必須(xu)做(zuo)好(hao)絕(jue)緣工作(zuo)。


定子(zi)是三(san)(san)相(xiang)電(dian)(dian)機(ji)(ji)的(de)電(dian)(dian)路部分,有三(san)(san)相(xiang)繞組(zu)。當引(yin)(yin)入(ru)三(san)(san)相(xiang)對稱電(dian)(dian)流時,會產生旋轉磁(ci)場。三(san)(san)相(xiang)繞組(zu)由三(san)(san)個(ge)(ge)(ge)獨立的(de)繞組(zu)組(zu)成(cheng),每個(ge)(ge)(ge)繞組(zu)由幾個(ge)(ge)(ge)線(xian)(xian)(xian)(xian)圈(quan)連(lian)接而成(cheng)。每個(ge)(ge)(ge)繞組(zu)是一個(ge)(ge)(ge)相(xiang)位(wei),每個(ge)(ge)(ge)繞組(zu)在空間上(shang)相(xiang)差120度。線(xian)(xian)(xian)(xian)圈(quan)由絕(jue)緣銅線(xian)(xian)(xian)(xian)或(huo)絕(jue)緣鋁線(xian)(xian)(xian)(xian)纏(chan)繞。大多(duo)數中(zhong)(zhong)小型三(san)(san)相(xiang)電(dian)(dian)機(ji)(ji)使(shi)用(yong)的(de)是圓形漆(qi)包(bao)線(xian)(xian)(xian)(xian),而大中(zhong)(zhong)型三(san)(san)相(xiang)電(dian)(dian)機(ji)(ji)的(de)定子(zi)線(xian)(xian)(xian)(xian)圈(quan)則是用(yong)截面較大的(de)絕(jue)緣扁銅線(xian)(xian)(xian)(xian)或(huo)扁鋁線(xian)(xian)(xian)(xian)纏(chan)繞,然(ran)后按(an)照一定的(de)規(gui)則嵌入(ru)定子(zi)鐵(tie)芯槽中(zhong)(zhong)。定子(zi)三(san)(san)相(xiang)繞組(zu)的(de)六個(ge)(ge)(ge)出線(xian)(xian)(xian)(xian)端(duan)子(zi)均引(yin)(yin)至接線(xian)(xian)(xian)(xian)盒,首(shou)端(duan)分別(bie)標(biao)為U1、V1、W1、W1,末端(duan)分別(bie)標(biao)為U2、V2、W2、W2。接線(xian)(xian)(xian)(xian)盒中(zhong)(zhong)六個(ge)(ge)(ge)輸出端(duan)子(zi)的(de)排(pai)列(lie)可以連(lian)接成(cheng)星形或(huo)三(san)(san)角形。

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