1、一般規(gui)定(ding)
(1)電熱帶安裝工(gong)(gong)(gong)程,施(shi)(shi)工(gong)(gong)(gong)前應具備下列條件:設計(ji)圖紙;設備、管道的安裝、焊接、試(shi)壓(ya)和防腐(fu)工(gong)(gong)(gong)序辦妥交接手續(xu);施(shi)(shi)工(gong)(gong)(gong)機(ji)具、施(shi)(shi)工(gong)(gong)(gong)力(li)量,能保證正常施(shi)(shi)工(gong)(gong)(gong);施(shi)(shi)工(gong)(gong)(gong)現場(chang)、施(shi)(shi)工(gong)(gong)(gong)用料、用電、材料儲放場(chang)地臨時設施(shi)(shi),能滿足施(shi)(shi)工(gong)(gong)(gong)需(xu)要。
(2)電熱帶施工(gong)(gong)前,應(ying)了解建筑(zhu)物結構,熟悉設(she)計圖紙。施工(gong)(gong)方案(an)及其他公眾的配合措施。安裝人(ren)員應(ying)熟悉電熱帶的一般(ban)性能,掌握(wo)基本操作要(yao)點和(he)工(gong)(gong)序,嚴禁盲目(mu)施工(gong)(gong)。
(3)電(dian)熱帶施工(gong)環(huan)境溫度不宜低于-5℃。
(4)電(dian)熱(re)帶安裝(zhuang)前,應對電(dian)熱(re)帶的外觀和型(xing)號尺寸(cun)進行(xing)仔細(xi)的檢查(cha)核對。
2、安(an)裝(zhuang)電伴熱(re)帶(dai)時不應打硬(ying)折或(huo)長(chang)距離在地面(mian)拖拉。碰到銳利的邊棱要先(xian)墊(dian)上(shang)鋁箔膠帶(dai)或(huo)將(jiang)其銳利打磨光(guang)滑,以(yi)防將(jiang)電熱(re)帶(dai)外層(ceng)絕緣(yuan)劃破(po)。
3、電熱帶***小彎(wan)曲半徑應不小于廠家(jia)樣本(ben)中的規定值。
4、電(dian)熱(re)(re)帶應緊貼設(she)備、管道表面,以(yi)(yi)利(li)熱(re)(re)傳導(dao)。安(an)裝時,先清除電(dian)熱(re)(re)帶途經(jing)處(chu)的油(you)污、水分或其他(ta)臟物。***好用(yong)(yong)汽油(you)或其他(ta)有機溶劑(ji)擦洗。在每隔一定(ding)距(ju)離(li)(見廠家(jia)樣本中規定(ding))應用(yong)(yong)鋁(lv)箔(bo)膠帶將(jiang)電(dian)熱(re)(re)帶徑向固(gu)定(ding),然后將(jiang)電(dian)熱(re)(re)帶的全長全部被鋁(lv)箔(bo)膠帶覆蓋(gai),以(yi)(yi)保證電(dian)熱(re)(re)帶的安(an)全,同時確保管道表面與電(dian)熱(re)(re)帶保持(chi)緊密結合(he)。
5、安裝電熱(re)帶附件時(shi),電熱(re)帶應留有(you)一定的(de)余量。在線路的(de)第一供電點(dian)和(he)尾端各(ge)預(yu)(yu)留1m長,二通(tong)和(he)三通(tong)配件處各(ge)端預(yu)(yu)留0.5m的(de)余量,以便下次檢(jian)修重復使用(yong)。
6、自限溫電熱帶可以(yi)任意切割,允許(xu)疊繞交叉。
7、電(dian)熱帶配電(dian)系統(tong)應具(ju)有過載、短(duan)路和漏電(dian)保護(hu)。
8、安裝(zhuang)一(yi)個伴熱(re)點(dian),測(ce)量(liang)一(yi)次(ci)絕(jue)(jue)緣。屏蔽層(ceng)須***接地,絕(jue)(jue)緣值不(bu)能低于(yu)50MΩ/1000V。絕(jue)(jue)熱(re)層(ceng)施工應在電熱(re)帶(dai)安裝(zhuang)完(wan)畢后,并經甲方驗收合格后方可進(jin)行。