防爆電加(jia)熱器在使(shi)用(yong)一(yi)(yi)段時間(jian)后就(jiu)(jiu)會不能再加(jia)熱，遼陽除霜電熱管，很有可(ke)能是(shi)(shi)(shi)(shi)因(yin)為(wei)內(nei)部的(de)(de)電熱絲斷(duan)了或者是(shi)(shi)(shi)(shi)接觸不良。如果(guo)是(shi)(shi)(shi)(shi)斷(duan)了只要(yao)(yao)(yao)再接上或換一(yi)(yi)個(ge)(ge)新的(de)(de)就(jiu)(jiu)可(ke)以(yi)了，除霜電熱管生(sheng)產廠家(jia)，但如果(guo)是(shi)(shi)(shi)(shi)接觸不良則需要(yao)(yao)(yao)對(dui)電路(lu)進行重新的(de)(de)連接。還有就(jiu)(jiu)是(shi)(shi)(shi)(shi)漏電現象的(de)(de)發生(sheng)，這個(ge)(ge)要(yao)(yao)(yao)判斷(duan)漏電的(de)(de)具體位(wei)置(zhi)，如果(guo)是(shi)(shi)(shi)(shi)電熱器漏電可(ke)以(yi)用(yong)烤箱(xiang)烤一(yi)(yi)下(xia)，如果(guo)還不行就(jiu)(jiu)必須(xu)更換電熱器了。如果(guo)是(shi)(shi)(shi)(shi)導線的(de)(de)絕緣(yuan)皮損等(deng)造成的(de)(de)漏電，可(ke)以(yi)用(yong)絕緣(yuan)布纏上就(jiu)(jiu)可(ke)以(yi)了。總之，一(yi)(yi)定注意自(zi)己的(de)(de)人身安全(quan)，在對(dui)這些(xie)不是(shi)(shi)(shi)(shi)很了解的(de)(de)情況下(xia)還是(shi)(shi)(shi)(shi)要(yao)(yao)(yao)找個(ge)(ge)的(de)(de)人員進行維(wei)修(xiu)。

電(dian)(dian)(dian)(dian)加(jia)(jia)熱(re)(re)(re)器介(jie)質(zhi)(zhi)(zhi)加(jia)(jia)熱(re)(re)(re)運用(yong)高頻電(dian)(dian)(dian)(dian)場對絕(jue)緣資料(liao)進(jin)(jin)行(xing)加(jia)(jia)熱(re)(re)(re)。首(shou)要加(jia)(jia)熱(re)(re)(re)目標(biao)是(shi)電(dian)(dian)(dian)(dian)介(jie)質(zhi)(zhi)(zhi)。電(dian)(dian)(dian)(dian)介(jie)質(zhi)(zhi)(zhi)置于交變(bian)電(dian)(dian)(dian)(dian)場中(zhong)，會被反復極化（電(dian)(dian)(dian)(dian)介(jie)質(zhi)(zhi)(zhi)在(zai)(zai)電(dian)(dian)(dian)(dian)場效果下，其外表或內部呈(cheng)現等量而(er)極性相反的電(dian)(dian)(dian)(dian)荷(he)的現象），從(cong)而(er)將電(dian)(dian)(dian)(dian)場中(zhong)的電(dian)(dian)(dian)(dian)能(neng)轉變(bian)成(cheng)熱(re)(re)(re)能(neng)。介(jie)質(zhi)(zhi)(zhi)加(jia)(jia)熱(re)(re)(re)運用(yong)的電(dian)(dian)(dian)(dian)場頻率很(hen)高。在(zai)(zai)中(zhong)、短波(bo)和(he)超短波(bo)波(bo)段(duan)內，頻率為幾百千赫到300兆(zhao)赫，除霜(shuang)電(dian)(dian)(dian)(dian)熱(re)(re)(re)管(guan)采購，稱為高頻介(jie)質(zhi)(zhi)(zhi)加(jia)(jia)熱(re)(re)(re)，到達(da)微波(bo)波(bo)段(duan)，則稱為微波(bo)介(jie)質(zhi)(zhi)(zhi)加(jia)(jia)熱(re)(re)(re)。一般高頻介(jie)質(zhi)(zhi)(zhi)加(jia)(jia)熱(re)(re)(re)是(shi)在(zai)(zai)兩極板間的電(dian)(dian)(dian)(dian)場中(zhong)進(jin)(jin)行(xing)的；而(er)微波(bo)介(jie)質(zhi)(zhi)(zhi)加(jia)(jia)熱(re)(re)(re)則是(shi)在(zai)(zai)波(bo)導、諧振腔或許(xu)在(zai)(zai)微波(bo)天線的輻射場照射下進(jin)(jin)行(xing)的。

防(fang)(fang)爆(bao)(bao)電(dian)(dian)加(jia)熱(re)器(qi)(qi)一(yi)般用于(yu)存在(zai)可能的危(wei)險場(chang)合(he)，由于(yu)周圍環境中(zhong)存在(zai)的各種(zhong)油、氣、粉塵(chen)等，一(yi)旦接(jie)觸(chu)到電(dian)(dian)火(huo)花(hua)就會引(yin)起(qi)炸(zha)，所以在(zai)這種(zhong)場(chang)合(he)加(jia)熱(re)就需(xu)要采用防(fang)(fang)爆(bao)(bao)電(dian)(dian)加(jia)熱(re)器(qi)(qi)。防(fang)(fang)爆(bao)(bao)電(dian)(dian)加(jia)熱(re)器(qi)(qi)的主要防(fang)(fang)爆(bao)(bao)措施是(shi)在(zai)加(jia)熱(re)器(qi)(qi)的接(jie)線盒內有一(yi)個隔爆(bao)(bao)裝置(zhi)，消除電(dian)(dian)火(huo)花(hua)引(yin)爆(bao)(bao)的隱患。對于(yu)不同的加(jia)熱(re)場(chang)合(he)，加(jia)熱(re)器(qi)(qi)的防(fang)(fang)爆(bao)(bao)等級要求(qiu)也不同，視具體(ti)情況(kuang)而定。防(fang)(fang)爆(bao)(bao)電(dian)(dian)加(jia)熱(re)器(qi)(qi)是(shi)工作、生活(huo)中(zhong)使用較(jiao)多的一(yi)種(zhong)設備(bei)，如電(dian)(dian)爐(lu)、電(dian)(dian)烙鐵、電(dian)(dian)熨斗、電(dian)(dian)暖器(qi)(qi)、電(dian)(dian)烘箱等都屬(shu)于(yu)電(dian)(dian)加(jia)熱(re)設備(bei)。