
2025-10-29 01:03:47
在(zai)(zai)進行隔(ge)(ge)爆(bao)(bao)燈(deng)(deng)具(ju)的(de)(de)(de)(de)(de)結(jie)(jie)(jie)構設計(ji)時(shi)(shi),制造者往往重點(dian)放在(zai)(zai)隔(ge)(ge)爆(bao)(bao)外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)的(de)(de)(de)(de)(de)外(wai)(wai)(wai)形和強度設計(ji)上(shang)(shang)(shang),卻(que)往往忽(hu)略了與外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)構成(cheng)整體(ti)的(de)(de)(de)(de)(de)緊(jin)(jin)固(gu)(gu)(gu)(gu)件(jian)、引入裝置、透明件(jian)、懸掛裝置、標(biao)志等(deng)其它器(qi)件(jian)的(de)(de)(de)(de)(de)設計(ji)。下面(mian),根據《性氣體(ti)環(huan)境用電(dian)氣設備第(di)1部(bu)(bu)分(fen):隔(ge)(ge)爆(bao)(bao)型"d"》的(de)(de)(de)(de)(de)要(yao)(yao)求,在(zai)(zai)結(jie)(jie)(jie)構設計(ji)方(fang)面(mian)來分(fen)析需(xu)(xu)要(yao)(yao)注(zhu)意(yi)(yi)的(de)(de)(de)(de)(de)一些問題(ti):外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)緊(jin)(jin)固(gu)(gu)(gu)(gu)件(jian)用螺(luo)(luo)(luo)栓(shuan)緊(jin)(jin)固(gu)(gu)(gu)(gu)的(de)(de)(de)(de)(de)的(de)(de)(de)(de)(de)隔(ge)(ge)爆(bao)(bao)外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)有(you)二種型式:平面(mian)和止口(kou)。對(dui)于平面(mian)結(jie)(jie)(jie)構,螺(luo)(luo)(luo)栓(shuan)不(bu)(bu)(bu)僅(jin)起(qi)(qi)緊(jin)(jin)固(gu)(gu)(gu)(gu)作業,還(huan)要(yao)(yao)保證平面(mian)間隙。對(dui)于止口(kou)結(jie)(jie)(jie)構,當隔(ge)(ge)爆(bao)(bao)面(mian)只考(kao)慮(lv)圓筒(tong)部(bu)(bu)分(fen)時(shi)(shi),螺(luo)(luo)(luo)栓(shuan)只起(qi)(qi)緊(jin)(jin)固(gu)(gu)(gu)(gu)作用;當隔(ge)(ge)爆(bao)(bao)面(mian)需(xu)(xu)要(yao)(yao)考(kao)慮(lv)圓筒(tong)加平面(mian)時(shi)(shi),螺(luo)(luo)(luo)栓(shuan)不(bu)(bu)(bu)僅(jin)起(qi)(qi)緊(jin)(jin)固(gu)(gu)(gu)(gu)作業,同(tong)時(shi)(shi)起(qi)(qi)保證平面(mian)部(bu)(bu)分(fen)間隙作用。當在(zai)(zai)外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)上(shang)(shang)(shang)直(zhi)接攻螺(luo)(luo)(luo)紋(wen)(wen)(wen)時(shi)(shi)必須注(zhu)意(yi)(yi):緊(jin)(jin)固(gu)(gu)(gu)(gu)件(jian)螺(luo)(luo)(luo)孔(kong)盡量(liang)(liang)不(bu)(bu)(bu)要(yao)(yao)穿(chuan)過(guo)隔(ge)(ge)爆(bao)(bao)外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke),穿(chuan)過(guo)外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)時(shi)(shi)螺(luo)(luo)(luo)孔(kong)底部(bu)(bu)應留有(you)3mm以上(shang)(shang)(shang)的(de)(de)(de)(de)(de)余(yu)量(liang)(liang);在(zai)(zai)使(shi)用鋁合金(jin)等(deng)輕合金(jin)材料作隔(ge)(ge)爆(bao)(bao)外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)時(shi)(shi),由(you)于鋁合金(jin)強度較低,因(yin)此,經常打(da)開(如更(geng)換光源需(xu)(xu)要(yao)(yao)打(da)開)的(de)(de)(de)(de)(de)隔(ge)(ge)爆(bao)(bao)外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)上(shang)(shang)(shang)使(shi)用螺(luo)(luo)(luo)釘(ding)緊(jin)(jin)固(gu)(gu)(gu)(gu)時(shi)(shi),不(bu)(bu)(bu)應在(zai)(zai)鋁合金(jin)外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)上(shang)(shang)(shang)直(zhi)接攻螺(luo)(luo)(luo)紋(wen)(wen)(wen),應通過(guo)預(yu)埋(mai)防(fang)松的(de)(de)(de)(de)(de)內外(wai)(wai)(wai)螺(luo)(luo)(luo)紋(wen)(wen)(wen)鋼套,來增加螺(luo)(luo)(luo)孔(kong)強度,并(bing)防(fang)止因(yin)螺(luo)(luo)(luo)紋(wen)(wen)(wen)爛牙而失效;不(bu)(bu)(bu)需(xu)(xu)要(yao)(yao)用戶在(zai)(zai)更(geng)換光源中或維修時(shi)(shi)打(da)開,且(qie)出(chu)廠時(shi)(shi)已經安裝好的(de)(de)(de)(de)(de)螺(luo)(luo)(luo)栓(shuan),可以在(zai)(zai)外(wai)(wai)(wai)殼(ke)(ke)(ke)(ke)上(shang)(shang)(shang)直(zhi)接攻緊(jin)(jin)固(gu)(gu)(gu)(gu)螺(luo)(luo)(luo)孔(kong),但是不(bu)(bu)(bu)能使(shi)用細(xi)牙螺(luo)(luo)(luo)紋(wen)(wen)(wen),盡量(liang)(liang)使(shi)用粗牙螺(luo)(luo)(luo)紋(wen)(wen)(wen),且(qie)有(you)足夠(gou)的(de)(de)(de)(de)(de)嚙(nie)合扣數來滿(man)足緊(jin)(jin)固(gu)(gu)(gu)(gu)要(yao)(yao)求。上(shang)(shang)(shang)海新黎明防(fang)爆(bao)(bao)電(dian)器(qi)有(you)限(xian)公(gong)司為您(nin)提供防(fang)爆(bao)(bao)燈(deng)(deng)具(ju) ,有(you)想法的(de)(de)(de)(de)(de)不(bu)(bu)(bu)要(yao)(yao)錯過(guo)哦!湖北消(xiao)防(fang)防(fang)爆(bao)(bao)燈(deng)(deng)具(ju)國標(biao)

在(zai)日(ri)常(chang)檢修維護中,需要注意以下幾點(dian)(dian):防(fang)爆(bao)燈(deng)(deng)(deng)具(ju)(ju)、燈(deng)(deng)(deng)罩打開前應能(neng)自動(dong)切斷(duan)(duan)電(dian)(dian)源。但(dan)因(yin)設(she)置(zhi)(zhi)聯(lian)鎖裝(zhuang)置(zhi)(zhi)較(jiao)復(fu)雜(za),不易(yi)實現,故大多數燈(deng)(deng)(deng)具(ju)(ju)只在(zai)外(wai)(wai)殼(ke)(ke)明顯(xian)處設(she)“嚴(yan)禁帶電(dian)(dian)打開"等字樣的(de)(de)(de)(de)(de)警告牌。又(you)因(yin)燈(deng)(deng)(deng)泡(pao)(pao)斷(duan)(duan)電(dian)(dian)后表面溫度還(huan)很(hen)高,如立刻打開燈(deng)(deng)(deng)罩,仍有(you)點(dian)(dian)燃性(xing)氣(qi)體(ti)混合物的(de)(de)(de)(de)(de)危險(主要指隔(ge)(ge)(ge)爆(bao)結構(gou)),故白熾燈(deng)(deng)(deng)、高壓汞(gong)燈(deng)(deng)(deng)、高壓鈉(na)燈(deng)(deng)(deng)這些燈(deng)(deng)(deng)泡(pao)(pao)表面溫度高的(de)(de)(de)(de)(de)光(guang)(guang)(guang)源,又(you)能(neng)快速打開蓋(gai)(gai)的(de)(de)(de)(de)(de)燈(deng)(deng)(deng)具(ju)(ju)要注意這一點(dian)(dian)。使(shi)用較(jiao)多防(fang)爆(bao)熒光(guang)(guang)(guang)燈(deng)(deng)(deng)就(jiu)具(ju)(ju)有(you)開蓋(gai)(gai)斷(duan)(duan)電(dian)(dian)的(de)(de)(de)(de)(de)聯(lian)鎖機構(gou),為檢修工(gong)作(zuo)提供了方便和**保(bao)障。因(yin)熒光(guang)(guang)(guang)燈(deng)(deng)(deng)為冷光(guang)(guang)(guang)源燈(deng)(deng)(deng)具(ju)(ju),不存在(zai)表面高溫,斷(duan)(duan)電(dian)(dian)后可(ke)(ke)立即(ji)開蓋(gai)(gai)。隔(ge)(ge)(ge)爆(bao)功(gong)能(neng)。燈(deng)(deng)(deng)具(ju)(ju)的(de)(de)(de)(de)(de)隔(ge)(ge)(ge)爆(bao)外(wai)(wai)殼(ke)(ke)在(zai)設(she)計時就(jiu)必須嚴(yan)格按照GB3836.2的(de)(de)(de)(de)(de)規定選用適當的(de)(de)(de)(de)(de)隔(ge)(ge)(ge)爆(bao)接合面結構(gou)參數、引入裝(zhuang)置(zhi)(zhi)的(de)(de)(de)(de)(de)方式。湖北消防(fang)防(fang)爆(bao)燈(deng)(deng)(deng)具(ju)(ju)國標上海(hai)新黎明防(fang)爆(bao)電(dian)(dian)器有(you)限(xian)公司(si)致力于提供防(fang)爆(bao)燈(deng)(deng)(deng)具(ju)(ju) ,有(you)想法的(de)(de)(de)(de)(de)可(ke)(ke)以來(lai)電(dian)(dian)咨(zi)詢!

防(fang)爆(bao)(bao)燈(deng)具(ju)(ju)(ju)是(shi)指(zhi)用于可(ke)(ke)燃(ran)(ran)(ran)性(xing)(xing)氣(qi)體(ti)和粉(fen)塵(chen)存(cun)在的危險場所,能防(fang)止(zhi)燈(deng)內部可(ke)(ke)能產生的電弧、火花和高溫引燃(ran)(ran)(ran)周圍環境(jing)里的可(ke)(ke)燃(ran)(ran)(ran)性(xing)(xing)氣(qi)體(ti)和粉(fen)塵(chen),從而達到防(fang)爆(bao)(bao)要求的燈(deng)具(ju)(ju)(ju)。主要有隔(ge)(ge)爆(bao)(bao)型(xing)(xing)(xing)防(fang)爆(bao)(bao)燈(deng)具(ju)(ju)(ju)、**型(xing)(xing)(xing)防(fang)爆(bao)(bao)燈(deng)具(ju)(ju)(ju)、移動型(xing)(xing)(xing)防(fang)爆(bao)(bao)燈(deng)具(ju)(ju)(ju)等。防(fang)爆(bao)(bao)平臺(tai)燈(deng)適(shi)用于:石(shi)(shi)化裝置、石(shi)(shi)油(you)平臺(tai)、加油(you)站(zhan)、油(you)泵(beng)房、中轉站(zhan)等易燃(ran)(ran)(ran)易爆(bao)(bao)場所作照(zhao)明。1區、2區性(xing)(xing)氣(qi)體(ti)環境(jing)。21區、22區可(ke)(ke)燃(ran)(ran)(ran)性(xing)(xing)粉(fen)塵(chen)環境(jing)。防(fang)爆(bao)(bao)燈(deng)具(ju)(ju)(ju)的防(fang)爆(bao)(bao)類別、級別與溫度組(zu)別見(jian)**標(biao)準規定。按防(fang)爆(bao)(bao)型(xing)(xing)(xing)式(shi)分(fen)為隔(ge)(ge)爆(bao)(bao)型(xing)(xing)(xing)、增安型(xing)(xing)(xing)、正(zheng)壓型(xing)(xing)(xing)、無火花型(xing)(xing)(xing)和粉(fen)塵(chen)防(fang)爆(bao)(bao)型(xing)(xing)(xing)共5種主要類型(xing)(xing)(xing),也可(ke)(ke)以(yi)由其他(ta)防(fang)爆(bao)(bao)型(xing)(xing)(xing)式(shi)和上述各(ge)種防(fang)爆(bao)(bao)型(xing)(xing)(xing)式(shi)組(zu)合形或復合型(xing)(xing)(xing)和特殊型(xing)(xing)(xing)。
大家都知道,在(zai)性環境中“比(bi)較高(gao)(gao)表(biao)面(mian)溫(wen)度(du)(du)"是(shi)(shi)至關重要(yao)的(de)(de)(de)(de)因素(su),它是(shi)(shi)指電(dian)氣(qi)設備在(zai)允許的(de)(de)(de)(de)不利條件(jian)下運行(xing)(xing)時(shi)(shi),其表(biao)面(mian)或任一部分(fen)可能達到的(de)(de)(de)(de)并有(you)可能引(yin)燃周圍性氣(qi)體環境的(de)(de)(de)(de)**高(gao)(gao)溫(wen)度(du)(du)。燈(deng)(deng)(deng)(deng)具(ju)(ju)(ju)(ju)本身(shen)作為(wei)(wei)能快(kuai)速產(chan)生高(gao)(gao)溫(wen)高(gao)(gao)熱的(de)(de)(de)(de)電(dian)氣(qi)產(chan)品,“比(bi)較高(gao)(gao)表(biao)面(mian)溫(wen)度(du)(du)"對(dui)其來(lai)說更是(shi)(shi)關鍵。那(nei)么檢驗(yan)機構在(zai)對(dui)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng)具(ju)(ju)(ju)(ju)進行(xing)(xing)試(shi)(shi)驗(yan)時(shi)(shi),溫(wen)度(du)(du)試(shi)(shi)驗(yan)是(shi)(shi)重要(yao)的(de)(de)(de)(de),也是(shi)(shi)難操作的(de)(de)(de)(de)。1防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng)具(ju)(ju)(ju)(ju)分(fen)類a按光源(yuan)型(xing)(xing)式(shi)(shi)(shi)分(fen)為(wei)(wei):防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)白熾燈(deng)(deng)(deng)(deng)、防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)熒光燈(deng)(deng)(deng)(deng)、防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)高(gao)(gao)壓(ya)汞燈(deng)(deng)(deng)(deng)、防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)鈉燈(deng)(deng)(deng)(deng)、防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)金鹵(lu)燈(deng)(deng)(deng)(deng)、LED防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng)等等;b按安(an)裝型(xing)(xing)式(shi)(shi)(shi)分(fen)為(wei)(wei):吸(xi)頂式(shi)(shi)(shi)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng)、吸(xi)壁式(shi)(shi)(shi)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng)、吊掛式(shi)(shi)(shi)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng)、嵌入式(shi)(shi)(shi)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng);c按其用(yong)途可分(fen)為(wei)(wei):防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)照(zhao)明(ming)燈(deng)(deng)(deng)(deng)、防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)投光燈(deng)(deng)(deng)(deng)、防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)信號燈(deng)(deng)(deng)(deng)、防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)應(ying)(ying)急燈(deng)(deng)(deng)(deng)、防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)移(yi)動燈(deng)(deng)(deng)(deng);不同的(de)(de)(de)(de)燈(deng)(deng)(deng)(deng)具(ju)(ju)(ju)(ju)在(zai)試(shi)(shi)驗(yan)中采(cai)用(yong)的(de)(de)(de)(de)方(fang)(fang)法也有(you)一些區別(bie)。2防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng)具(ju)(ju)(ju)(ju)的(de)(de)(de)(de)溫(wen)度(du)(du)試(shi)(shi)驗(yan)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng)具(ju)(ju)(ju)(ju)在(zai)進行(xing)(xing)溫(wen)度(du)(du)試(shi)(shi)驗(yan)時(shi)(shi)應(ying)(ying)該注意(yi)以下幾點:a燈(deng)(deng)(deng)(deng)具(ju)(ju)(ju)(ju)的(de)(de)(de)(de)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)型(xing)(xing)式(shi)(shi)(shi);b燈(deng)(deng)(deng)(deng)具(ju)(ju)(ju)(ju)的(de)(de)(de)(de)安(an)裝方(fang)(fang)式(shi)(shi)(shi)及光源(yuan);c光學原理(發光型(xing)(xing)式(shi)(shi)(shi));d溫(wen)度(du)(du)測試(shi)(shi)點的(de)(de)(de)(de)選擇。上(shang)海新黎明(ming)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)電(dian)器有(you)限(xian)公(gong)司(si)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)燈(deng)(deng)(deng)(deng)具(ju)(ju)(ju)(ju) ,就選上(shang)海新黎明(ming)防(fang)(fang)(fang)(fang)(fang)爆(bao)(bao)(bao)(bao)(bao)電(dian)器有(you)限(xian)公(gong)司(si),用(yong)戶的(de)(de)(de)(de)信賴之選,有(you)想法可以來(lai)我司(si)咨(zi)詢!

隔(ge)爆(bao)(bao)型燈(deng)(deng)(deng)具(ju)的(de)(de)引入方(fang)式(shi),GB3836.2中作(zuo)了明確(que)的(de)(de)規定(ding),即要求燈(deng)(deng)(deng)具(ju)須采(cai)用間(jian)(jian)接(jie)(jie)引入方(fang)式(shi),但I類帶隔(ge)爆(bao)(bao)燈(deng)(deng)(deng)座的(de)(de)熒(ying)光燈(deng)(deng)(deng)和冷(leng)啟動熒(ying)光燈(deng)(deng)(deng)可采(cai)用直接(jie)(jie)引入方(fang)式(shi)。對于引入方(fang)式(shi)的(de)(de)這種規定(ding),主(zhu)要是由(you)于隔(ge)爆(bao)(bao)型燈(deng)(deng)(deng)具(ju)正常運行工作(zuo)時,內部不可能完全避免(mian)產(chan)生火花(hua)、電(dian)(dian)弧(hu)或危(wei)險(xian)溫(wen)度的(de)(de)緣故。間(jian)(jian)接(jie)(jie)引入的(de)(de)方(fang)式(shi),即通過接(jie)(jie)線(xian)盒或插銷以(yi)電(dian)(dian)纜或導(dao)線(xian)與(yu)燈(deng)(deng)(deng)具(ju)進行電(dian)(dian)氣連(lian)接(jie)(jie),在結構上把(ba)燈(deng)(deng)(deng)具(ju)分隔(ge)成兩個的(de)(de)腔體,燈(deng)(deng)(deng)具(ju)的(de)(de)主(zhu)腔體和接(jie)(jie)線(xian)腔體,即兩腔隔(ge)爆(bao)(bao)結構,使防爆(bao)(bao)**的(de)(de)可靠性(xing)充分得到(dao)保(bao)證。上海新黎明防爆(bao)(bao)電(dian)(dian)器有(you)限(xian)公司致(zhi)力于提(ti)供防爆(bao)(bao)燈(deng)(deng)(deng)具(ju) ,歡迎您(nin)的(de)(de)來電(dian)(dian)!湖(hu)北(bei)消防防爆(bao)(bao)燈(deng)(deng)(deng)具(ju)國(guo)標
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用(yong)(yong)螺(luo)(luo)栓緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)的(de)(de)(de)(de)(de)(de)的(de)(de)(de)(de)(de)(de)隔(ge)爆外(wai)(wai)(wai)(wai)殼(ke)(ke)有(you)二種型式(shi):平(ping)(ping)(ping)面(mian)(mian)和止(zhi)(zhi)口。對于平(ping)(ping)(ping)面(mian)(mian)結(jie)構(gou)(gou),螺(luo)(luo)栓不僅起(qi)緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)作業(ye),還要(yao)保(bao)證(zheng)(zheng)平(ping)(ping)(ping)面(mian)(mian)間隙(xi)(xi)(xi)。對于止(zhi)(zhi)口結(jie)構(gou)(gou),當隔(ge)爆面(mian)(mian)只(zhi)考慮(lv)圓(yuan)筒部(bu)(bu)分(fen)時(shi)(shi),螺(luo)(luo)栓只(zhi)起(qi)緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)作用(yong)(yong);當隔(ge)爆面(mian)(mian)需要(yao)考慮(lv)圓(yuan)筒加平(ping)(ping)(ping)面(mian)(mian)時(shi)(shi),螺(luo)(luo)栓不僅起(qi)緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)作業(ye),同(tong)時(shi)(shi)起(qi)保(bao)證(zheng)(zheng)平(ping)(ping)(ping)面(mian)(mian)部(bu)(bu)分(fen)間隙(xi)(xi)(xi)作用(yong)(yong)。當在(zai)(zai)(zai)外(wai)(wai)(wai)(wai)殼(ke)(ke)上(shang)直(zhi)接(jie)(jie)攻螺(luo)(luo)紋(wen)(wen)時(shi)(shi)必須注(zhu)意:緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)件螺(luo)(luo)孔(kong)(kong)盡(jin)(jin)量不要(yao)穿過(guo)(guo)隔(ge)爆外(wai)(wai)(wai)(wai)殼(ke)(ke),穿過(guo)(guo)外(wai)(wai)(wai)(wai)殼(ke)(ke)時(shi)(shi)螺(luo)(luo)孔(kong)(kong)底部(bu)(bu)應(ying)留有(you)3mm以(yi)上(shang)的(de)(de)(de)(de)(de)(de)余(yu)量;在(zai)(zai)(zai)使(shi)(shi)用(yong)(yong)鋁(lv)合金等輕(qing)合金材(cai)料作隔(ge)爆外(wai)(wai)(wai)(wai)殼(ke)(ke)時(shi)(shi),由于鋁(lv)合金強度(du)(du)較(jiao)低,因此,經(jing)常(chang)打(da)開(如更換光源需要(yao)打(da)開)的(de)(de)(de)(de)(de)(de)隔(ge)爆外(wai)(wai)(wai)(wai)殼(ke)(ke)上(shang)使(shi)(shi)用(yong)(yong)螺(luo)(luo)釘緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)時(shi)(shi),不應(ying)在(zai)(zai)(zai)鋁(lv)合金外(wai)(wai)(wai)(wai)殼(ke)(ke)上(shang)直(zhi)接(jie)(jie)攻螺(luo)(luo)紋(wen)(wen),應(ying)通過(guo)(guo)預埋防松的(de)(de)(de)(de)(de)(de)內外(wai)(wai)(wai)(wai)螺(luo)(luo)紋(wen)(wen)鋼套,來增加螺(luo)(luo)孔(kong)(kong)強度(du)(du),并防止(zhi)(zhi)因螺(luo)(luo)紋(wen)(wen)爛牙(ya)而失效;不需要(yao)用(yong)(yong)戶在(zai)(zai)(zai)更換光源中(zhong)或維修時(shi)(shi)打(da)開,且出廠時(shi)(shi)已經(jing)安(an)裝好的(de)(de)(de)(de)(de)(de)螺(luo)(luo)栓,可(ke)以(yi)在(zai)(zai)(zai)外(wai)(wai)(wai)(wai)殼(ke)(ke)上(shang)直(zhi)接(jie)(jie)攻緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)螺(luo)(luo)孔(kong)(kong),但是不能(neng)使(shi)(shi)用(yong)(yong)細牙(ya)螺(luo)(luo)紋(wen)(wen),盡(jin)(jin)量使(shi)(shi)用(yong)(yong)粗(cu)牙(ya)螺(luo)(luo)紋(wen)(wen),且有(you)足夠的(de)(de)(de)(de)(de)(de)嚙合扣數(shu)來滿足緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)要(yao)求。總之,在(zai)(zai)(zai)設計外(wai)(wai)(wai)(wai)殼(ke)(ke)緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)件時(shi)(shi),應(ying)首先分(fen)清其在(zai)(zai)(zai)隔(ge)爆外(wai)(wai)(wai)(wai)殼(ke)(ke)中(zhong)的(de)(de)(de)(de)(de)(de)作用(yong)(yong),是只(zhi)起(qi)緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)作用(yong)(yong),還是既起(qi)緊(jin)(jin)(jin)(jin)(jin)固(gu)(gu)(gu)(gu)(gu)同(tong)時(shi)(shi)還起(qi)保(bao)證(zheng)(zheng)平(ping)(ping)(ping)面(mian)(mian)間隙(xi)(xi)(xi)的(de)(de)(de)(de)(de)(de)作用(yong)(yong),然(ran)后(hou)確定螺(luo)(luo)栓的(de)(de)(de)(de)(de)(de)大軸向載荷選用(yong)(yong)合適的(de)(de)(de)(de)(de)(de)螺(luo)(luo)栓。湖(hu)北消防防爆燈具國標(biao)