防(fang)(fang)爆加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)是(shi)一種消耗電能轉換為熱(re)(re)(re)能，來對需加(jia)(jia)(jia)熱(re)(re)(re)物(wu)料(liao)進行加(jia)(jia)(jia)熱(re)(re)(re)。防(fang)(fang)爆加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)是(shi)由外到(dao)里外殼(ke)（不繡(xiu)鋼(gang)/碳鋼(gang)/銅(tong)/鈦(tai)材(cai)等(deng)、發熱(re)(re)(re)絲(si)（鎳鉻鉛合金）、填充物(wu)（氧化鎂(mei)，作(zuo)(zuo)用(yong)是(shi)導熱(re)(re)(re)、絕(jue)緣(yuan)）、外殼(ke)（不繡(xiu)鋼(gang)、碳鋼(gang)、鈦(tai)材(cai)、銅(tong)  等(deng)）、陶(tao)瓷(ci)封頭（作(zuo)(zuo)用(yong)：絕(jue)緣(yuan)）、防(fang)(fang)爆盒組成的。加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)在工(gong)作(zuo)(zuo)中低溫(wen)(wen)流(liu)(liu)體介(jie)質通(tong)過管(guan)(guan)(guan)道(dao)(dao)在壓力作(zuo)(zuo)用(yong)下進入其輸入口，沿著(zhu)電加(jia)(jia)(jia)熱(re)(re)(re)容器(qi)內部(bu)特定(ding)換熱(re)(re)(re)流(liu)(liu)道(dao)(dao)，運用(yong)空(kong)氣(qi)電熱(re)(re)(re)管(guan)(guan)(guan)的流(liu)(liu)體熱(re)(re)(re)力學(xue)原理(li)設計的路(lu)徑，帶走空(kong)氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)中的電熱(re)(re)(re)元(yuan)件工(gong)作(zuo)(zuo)中所產生的高(gao)(gao)溫(wen)(wen)熱(re)(re)(re)能量，使空(kong)氣(qi)加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)被加(jia)(jia)(jia)熱(re)(re)(re)介(jie)質溫(wen)(wen)度升高(gao)(gao)，加(jia)(jia)(jia)熱(re)(re)(re)管(guan)(guan)(guan)出口得到(dao)工(gong)藝要求(qiu)的高(gao)(gao)溫(wen)(wen)介(jie)質。

產品特點

1.升溫時(shi)間(jian)在試(shi)驗電壓下，元件從環境溫度(du)升至(zhi)試(shi)驗溫度(du)時(shi)間(jian)應不大于15min

2.額(e)定(ding)(ding)(ding)功(gong)(gong)率(lv)(lv)偏差在(zai)充分發熱的條(tiao)件(jian)(jian)下，元件(jian)(jian)的額(e)定(ding)(ding)(ding)功(gong)(gong)率(lv)(lv)的偏差應不超(chao)過下列(lie)規定(ding)(ding)(ding)的范(fan)圍(wei);對(dui)額(e)定(ding)(ding)(ding)功(gong)(gong)率(lv)(lv)小(xiao)于等(deng)于100W的元件(jian)(jian)為:士(shi)10%。對(dui)額(e)定(ding)(ding)(ding)功(gong)(gong)率(lv)(lv)大于100W的元件(jian)(jian)為+5%~- 10%或(huo)10W,取兩者中的較(jiao)大值。

3.泄露電(dian)(dian)流(liu)(liu)(liu)冷態(tai)泄露電(dian)(dian)流(liu)(liu)(liu)以及(ji)水壓(ya)和密(mi)封(feng)試驗后泄露電(dian)(dian)流(liu)(liu)(liu)應(ying)(ying)(ying)不(bu)超過(guo)0.5mA工作溫度(du)下(xia)的熱(re)(re)(re)態(tai)泄露電(dian)(dian)流(liu)(liu)(liu)應(ying)(ying)(ying)不(bu)超過(guo)公式中的計(ji)算值，但不(bu)超過(guo)5mA I=1/6 (tTX0.00001) I一 熱(re)(re)(re)態(tai)泄露電(dian)(dian)流(liu)(liu)(liu)mA t-發熱(re)(re)(re)長度(du)mm T-工作溫度(du)C多個(ge)元件串聯到電(dian)(dian)源中時，應(ying)(ying)(ying)以這一組元件為(wei) 整(zheng)體進行泄露電(dian)(dian)流(liu)(liu)(liu)試驗。

4. 絕緣(yuan)電(dian)(dian)阻(zu)出(chu)廠檢驗時冷態絕緣(yuan)電(dian)(dian)阻(zu)應(ying)(ying)(ying)不(bu)小(xiao)于(yu)(yu)50MQ密封(feng)試(shi)驗后，長(chang)期存放或者使用后的(de)絕緣(yuan)電(dian)(dian)阻(zu)應(ying)(ying)(ying)不(bu)消與MQ工(gong)作溫度(du)下的(de)熱(re)(re)態絕緣(yuan)電(dian)(dian)阻(zu)應(ying)(ying)(ying)不(bu)低于(yu)(yu)公式中(zhong)的(de)計(ji)算值，但應(ying)(ying)(ying)不(bu)小(xiao)于(yu)(yu)1MQ R=「(10-0.015T) /t」X0.001 R熱(re)(re)態絕緣(yuan)電(dian)(dian)阻(zu)MQ t一-發 熱(re)(re)長(chang)度(du)mmT一工(gong)作溫度(du)°C

5.絕(jue)緣耐壓強度元件(jian)應在(zai)規定的試(shi)驗條件(jian)和(he)試(shi)驗電(dian)壓下保(bao)持1min,而無閃絡(luo)和(he)擊穿(chuan)現象

6.經受通(tong)(tong)斷電的能(neng)力元件(jian)應能(neng)在規定的試驗條件(jian)下經歷2000次通(tong)(tong)斷電試驗，而不發生損壞