防(fang)(fang)爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是一種消耗電(dian)能轉換(huan)為熱(re)(re)(re)(re)能，來對(dui)需加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)料(liao)進行加(jia)(jia)(jia)熱(re)(re)(re)(re)。防(fang)(fang)爆加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)是由外到里外殼（不繡(xiu)鋼/碳鋼/銅/鈦(tai)材等(deng)(deng)、發熱(re)(re)(re)(re)絲(si)（鎳鉻鉛合金）、填充物(wu)（氧化(hua)鎂，作(zuo)用是導(dao)熱(re)(re)(re)(re)、絕緣）、外殼（不繡(xiu)鋼、碳鋼、鈦(tai)材、銅  等(deng)(deng)）、陶瓷封頭(tou)（作(zuo)用：絕緣）、防(fang)(fang)爆盒組(zu)成(cheng)的。加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)在(zai)工(gong)作(zuo)中低溫流(liu)體介(jie)質(zhi)(zhi)通過管(guan)(guan)道在(zai)壓力作(zuo)用下進入其(qi)輸(shu)入口(kou)，沿著電(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)容器內(nei)部特定(ding)換(huan)熱(re)(re)(re)(re)流(liu)道，運用空氣(qi)電(dian)熱(re)(re)(re)(re)管(guan)(guan)的流(liu)體熱(re)(re)(re)(re)力學原理設計的路(lu)徑，帶走空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)中的電(dian)熱(re)(re)(re)(re)元件工(gong)作(zuo)中所產生的高溫熱(re)(re)(re)(re)能量，使空氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)被(bei)加(jia)(jia)(jia)熱(re)(re)(re)(re)介(jie)質(zhi)(zhi)溫度升(sheng)高，加(jia)(jia)(jia)熱(re)(re)(re)(re)管(guan)(guan)出(chu)口(kou)得(de)到工(gong)藝要(yao)求的高溫介(jie)質(zhi)(zhi)。

產(chan)品特點

1.升溫(wen)時間(jian)在試驗(yan)電壓下(xia)，元(yuan)件(jian)從(cong)環(huan)境溫(wen)度(du)升至試驗(yan)溫(wen)度(du)時間(jian)應不大于15min

2.額定(ding)功(gong)(gong)率(lv)偏差(cha)在充分發熱的條件(jian)(jian)(jian)下，元件(jian)(jian)(jian)的額定(ding)功(gong)(gong)率(lv)的偏差(cha)應不(bu)超過下列規定(ding)的范圍;對額定(ding)功(gong)(gong)率(lv)小(xiao)于(yu)(yu)等于(yu)(yu)100W的元件(jian)(jian)(jian)為(wei):士10%。對額定(ding)功(gong)(gong)率(lv)大于(yu)(yu)100W的元件(jian)(jian)(jian)為(wei)+5%~- 10%或10W,取兩者中的較大值。

3.泄(xie)露(lu)電(dian)(dian)流冷態(tai)(tai)泄(xie)露(lu)電(dian)(dian)流以及水壓和密(mi)封試驗后泄(xie)露(lu)電(dian)(dian)流應(ying)不超(chao)(chao)過0.5mA工(gong)作溫度(du)下的熱(re)態(tai)(tai)泄(xie)露(lu)電(dian)(dian)流應(ying)不超(chao)(chao)過公式中的計算值，但(dan)不超(chao)(chao)過5mA I=1/6 (tTX0.00001) I一(yi) 熱(re)態(tai)(tai)泄(xie)露(lu)電(dian)(dian)流mA t-發熱(re)長度(du)mm T-工(gong)作溫度(du)C多個元件(jian)串聯到電(dian)(dian)源中時，應(ying)以這(zhe)一(yi)組元件(jian)為 整(zheng)體進行泄(xie)露(lu)電(dian)(dian)流試驗。

4. 絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)出(chu)廠(chang)檢驗時冷態絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)應不(bu)(bu)小于(yu)50MQ密(mi)封試驗后，長(chang)期存放或者使用(yong)后的(de)絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)應不(bu)(bu)消與MQ工(gong)作溫度下的(de)熱態絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)應不(bu)(bu)低(di)于(yu)公式中(zhong)的(de)計算值，但應不(bu)(bu)小于(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)MQ t一-發 熱長(chang)度mmT一工(gong)作溫度°C

5.絕(jue)緣耐壓(ya)強度元件(jian)應(ying)在(zai)規定的試驗條件(jian)和試驗電(dian)壓(ya)下保持(chi)1min,而(er)無閃絡和擊穿現(xian)象

6.經受通(tong)(tong)斷(duan)電的能力元(yuan)件應能在規定的試(shi)驗條(tiao)件下(xia)經歷2000次通(tong)(tong)斷(duan)電試(shi)驗，而不發(fa)生損壞(huai)