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淺談隧洞臨時用電事宜

刊出時光:2021-05-15 11:14小編:陳仁強

淺論隧洞按規定耗電適宜

三維圖像監理單位有限公司吉首分有限公司陳仁強

一、織造法律規定

房屋建(jian)筑基(ji)礎工(gong)(gong)程(cheng)(cheng)健康產(chan)生法律法規》;〈通用的供電設(she)(she)(she)(she)施(shi)設(she)(she)(she)(she)備供電來設(she)(she)(she)(she)計(ji)標(biao)準規范(fan)》GB50055-9;〈供配電系統設(she)(she)(she)(she)計(ji)規范(fan)GB50052-95;〈施(shi)工(gong)(gong)現場臨時用電安全(quan)技(ji)術規范(fan)JGJ46-2005〈電力電纜設(she)(she)(she)(she)計(ji)手冊》;〈川(chuan)硐(dong)隧(sui)(sui)(sui)洞、天子坡隧(sui)(sui)(sui)洞設(she)(she)(she)(she)計(ji)圖》及相關隧(sui)(sui)(sui)道(dao)參數;本標(biao)段的招(zhao)標(biao)文(wen)件及合同文(wen)件;本工(gong)(gong)程(cheng)(cheng)配置機械(xie)裝備及工(gong)(gong)器具配套基(ji)本設(she)(she)(she)(she)施(shi)

二、過程中簡介

懷化市(shi)臟(zang)水(shui)(shui)處里(li)三(san)四期(qi)建筑項目(mu)為(wei)涼(liang)水(shui)(shui)塘變電站棚(peng)戶區(qu)(qu)改(gai)造區(qu)(qu)臟(zang)水(shui)(shui)提(ti)取(qu)供(gong)水(shui)(shui)管道及(ji)川硐文化藝術培訓(xun)工業(ye)園區(qu)(qu)至民族風(feng)俗(su)特色風(feng)情園沿岸業(ye)主區(qu)(qu)臟(zang)水(shui)(shui)提(ti)取(qu)供(gong)水(shui)(shui)管道一些;由(you)甘肅省城(cheng)鄉統籌規劃(hua)區(qu)(qu)制作(zuo)調查(cha)院和都勻(yun)市(shi)勻(yun)城(cheng)水(shui)(shui)利樞紐受限擔責裝修(xiu)公司共同利益(yi)制作(zuo)。臟(zang)水(shui)(shui)隧(sui)洞(dong)總長(chang)3612km,都是城(cheng)門洞(dong)型(xing):2.8?.6m(H譈)、其中(zhong)川硐隧(sui)洞(dong)長(chang)1.338km,天子坡隧(sui)洞(dong)長(chang)2.274km,主要是以Ⅲ~Ⅳ級圍巖(yan)為(wei)主;開(kai)挖方式(shi)采取(qu)正臺(tai)階法爆破施工作(zuo)業(ye)。

三、電壓(ya)器、電纜(lan)、主設(she)備主設(she)備

1、選(xuan)(xuan)取方式:一定靠進負荷率服務中(zhong)心,才能減(jian)少壓(ya)(ya)減(jian)輕,提高了(le)安全保障因子(zi)。鋪設電(dian)(dian)量選(xuan)(xuan)用(yong)(yong)三箱五線(xian)制2、會(hui)根據工地(di)產(chan)品(pin)及數(shu)學具體(ti)位置;考(kao)慮(lv)三臺電(dian)(dian)力低(di)壓(ya)(ya)變壓(ya)(ya)器臺放(fang)(fang)川(chuan)硐隧(sui)洞填報志(zhi)愿系統、一部放(fang)(fang)川(chuan)硐隧(sui)洞進產(chan)品(pin)出口(kou)及九五之(zhi)尊(zun)坡(po)隧(sui)洞填報志(zhi)愿系統其中(zhong);另一類(lei)部放(fang)(fang)九五之(zhi)尊(zun)坡(po)隧(sui)洞進產(chan)品(pin)出口(kou);工地(di)的要求山(shan)勢較高而又干的特點,或者充分考(kao)慮(lv)運送方便快捷、易(yi)重新(xin)安裝(zhuang)、易(yi)保護區、易(yi)維(wei)護保養;由電(dian)(dian)力低(di)壓(ya)(ya)變壓(ya)(ya)器變壓(ya)(ya)后電(dian)(dian)覽桿空架(jia)拉至(zhi)各類(lei)隧(sui)洞邊(bian)聯結各用(yong)(yong)產(chan)品(pin)及生(sheng)活(huo)水平(ping)區域中(zhong)光照(zhao)特用(yong)(yong)電(dian)(dian)纜線(xian);

3、洞(dong)外銅芯線(xian)(xian)(xian)120m2樹(shu)干線(xian)(xian)(xian)使(shi)用(yong)(yong)數(shu)據(ju)線(xian)(xian)(xian)溝(gou)敷設,代替(ti)洞(dong)內作業;洞(dong)內銅芯線(xian)(xian)(xian)120m2樹(shu)干線(xian)(xian)(xian)使(shi)用(yong)(yong)沿(yan)邊(bian)墻數(shu)據(ju)線(xian)(xian)(xian)溝(gou)敷設;洞(dong)外銅芯線(xian)(xian)(xian)500m空液壓(ya)機數(shu)據(ju)線(xian)(xian)(xian)使(shi)用(yong)(yong)數(shu)據(ju)線(xian)(xian)(xian)家(jia)用(yong)(yong)電線(xian)(xian)(xian)桿數(shu)據(ju)線(xian)(xian)(xian)溝(gou)

4、電動機設配:

隧道一.png

四、電量管理方法系統

電(dian)焊工(gong)(gong)(gong)可以(yi)進(jin)行按一個(ge)國家現階段(duan)標(biao)準規范考察評(ping)(ping)價(jia)合適品后,持證資格證書運轉;某(mou)個(ge)工(gong)(gong)(gong)廠電(dian)費人(ren)員管(guan)理可以(yi)按照相應(ying)安(an)(an)全衛生(sheng)文(wen)化藝(yi)術學習培訓學習培訓和(he)新技術專用設(she)備交底,考察評(ping)(ping)價(jia)合適品側后方(fang)可資格證書運轉。對怎么安(an)(an)裝、巡(xun)回檢查、處理或(huo)是拆(chai)除飛行工(gong)(gong)(gong)廠電(dian)費專用設(she)備和(he)方(fang)式(shi),可以(yi)由電(dian)焊工(gong)(gong)(gong)完(wan)工(gong)(gong)(gong),并應(ying)具人(ren)陪護。電(dian)焊工(gong)(gong)(gong)分等級應(ying)同項目 的難易(yi)層次和(he)新技術專用設(she)備繁多性密切相關(guan)性。

1、以及供電職工應才能(neng)做到

(1)掌握安全(quan)用電基本知識和(he)所用設備(bei)的性能;

(2)使用設備前必須按規定穿戴(dai)和(he)配備好相應的勞動防護用品(pin)并(bing)檢査電氣裝置和(he)保護設施是否完好。嚴禁設備帶“病”運轉;

(3)停用的設備必須拉聞斷電(dian),鎖好開(kai)關箱;

(4)負(fu)責保(bao)護所用(yong)設備的(de)負(fu)荷線、保(bao)護零線和開關(guan)箱(xiang)。發現問題,及時報告解(jie)決5)搬遷或移(yi)動用(yong)電設備,必須經電工切(qie)斷電源并作妥善處理(li)后進行。

2、鋪設直播監(jian)時用水必須要樹立平安技術性(xing)人事檔案,于外(wai)容應還有

(1)臨時(shi)用(yong)電(dian)施(shi)工組(zu)織(zhi)設計(ji)的全部資料;及修改臨時(shi)用(yong)電(dian)施(shi)工組(zu)織(zhi)設計(ji)的資料;

(2)技術交底(di)資料

(3)臨時用電工程檢驗收表;

4)電(dian)力電(dian)氣(qi)機的試、檢定憑單(dan)和校正紀錄;

(5)接(jie)地電(dian)(dian)阻測(ce)定(ding)記(ji)錄表(biao)6)定(ding)期檢(復)査表(biao)和電(dian)(dian)工維修工作(zuo)記(ji)錄。

3、高壓線路及跨接(jie)具體措(cuo)施

(1)電(dian)(dian)力線(xian)(xian)路中必須采用(yong)N-S接零保(bao)(bao)護系統。電(dian)(dian)氣設備的(de)金屬(shu)外殼必須與專用(yong)保(bao)(bao)護零線(xian)(xian)連接。專用(yong)保(bao)(bao)護零線(xian)(xian)由(you)工作接地線(xian)(xian)、配電(dian)(dian)室(shi)的(de)零線(xian)(xian)或(huo)第一(yi)級(ji)漏電(dian)(dian)保(bao)(bao)護器(qi)電(dian)(dian)源(yuan)側的(de)零線(xian)(xian)引出。

(2)施工現場(chang)電氣設備不(bu)得一部分(fen)設備作保護接零(ling),另一部分(fen)設備作保護接地,任何設備須(xu)做接零(ling),接地雙保護。

(3)施工現(xian)場的電力系(xi)統嚴禁利用(yong)大地作相線或(huo)零線

4)保護的零線(xian)沒法安裝(zhuang)按(an)鈕或燒毀器。

5)與不(bu)間斷機(ji) 連在一起接的防護零線是指受(shou)力不(bu)少于2.5mm2的絕緣(yuan)帶多股銅絲(si)。防護零線的規(gui)范logo為(wei)綠黃多色線。在任(ren)何(he)人環(huan)境下(xia)不(bu)允(yun)許動用綠黃多色線作容載(zai)線。

6)下(xia)例電(dian)(dian)子(zi)元(yuan)件(jian)裝(zhuang)(zhuang)備裝(zhuang)(zhuang)備不感應起電(dian)(dian)的(de)(de)(de)(de)(de)露(lu)外導(dao)電(dian)(dian)地方(fang),應做自我(wo)保護(hu)好(hao)接(jie)零和自我(wo)保護(hu)好(hao)的(de)(de)(de)(de)(de)接(jie)地;如(ru):電(dian)(dian)機(ji)(ji)馬達、電(dian)(dian)壓(ya)器、電(dian)(dian)子(zi)元(yuan)件(jian)、照明燈具產(chan)品、手拿電(dian)(dian)動四輪(lun)產(chan)品的(de)(de)(de)(de)(de)合(he)金(jin)(jin)材(cai)(cai)料(liao)質(zhi)殼體;電(dian)(dian)子(zi)元(yuan)件(jian)裝(zhuang)(zhuang)備裝(zhuang)(zhuang)備傳輸系(xi)統(tong)設計的(de)(de)(de)(de)(de)合(he)金(jin)(jin)材(cai)(cai)料(liao)質(zhi)機(ji)(ji)件(jian);電(dian)(dian)氣(qi)安(an)裝(zhuang)(zhuang)屏與管理屏的(de)(de)(de)(de)(de)合(he)金(jin)(jin)材(cai)(cai)料(liao)質(zhi)結(jie)構;辦公室、外電(dian)(dian)氣(qi)安(an)裝(zhuang)(zhuang)系(xi)統(tong)設計的(de)(de)(de)(de)(de)合(he)金(jin)(jin)材(cai)(cai)料(liao)質(zhi)結(jie)構及緊挨感應起電(dian)(dian)地方(fang)的(de)(de)(de)(de)(de)合(he)金(jin)(jin)材(cai)(cai)料(liao)質(zhi)安(an)全圍欄和合(he)金(jin)(jin)材(cai)(cai)料(liao)質(zhi)門;

4、配電(dian)設備箱(xiang)及打開(kai)箱(xiang)

1)推力供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)裝(zhuang)(zhuang)置(zhi)箱(xiang)(xiang)與照明電(dian)(dian)(dian)(dian)器還有他主(zhu)裝(zhuang)(zhuang)備(bei)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)裝(zhuang)(zhuang)置(zhi)箱(xiang)(xiang)各分為設有。且電(dian)(dian)(dian)(dian)源模(mo)塊(kuai)觸(chu)點觸(chu)點開(kai)關箱(xiang)(xiang)應由末(mo)級(ji)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)裝(zhuang)(zhuang)置(zhi)箱(xiang)(xiang)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)裝(zhuang)(zhuang)置(zhi)2)總供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)裝(zhuang)(zhuang)置(zhi)箱(xiang)(xiang)應開(kai)在最靠近(jin)電(dian)(dian)(dian)(dian)源模(mo)塊(kuai)的地域(yu),分供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)裝(zhuang)(zhuang)置(zhi)箱(xiang)(xiang)應裝(zhuang)(zhuang)開(kai)在供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)主(zhu)裝(zhuang)(zhuang)備(bei)或負(fu)荷率對集中(zhong)點的地域(yu)。分供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)裝(zhuang)(zhuang)置(zhi)箱(xiang)(xiang)與電(dian)(dian)(dian)(dian)源模(mo)塊(kuai)觸(chu)點觸(chu)點開(kai)關箱(xiang)(xiang)的間(jian)隔不(bu)應高于30m。電(dian)(dian)(dian)(dian)源模(mo)塊(kuai)觸(chu)點觸(chu)點開(kai)關箱(xiang)(xiang)與其說操控的一定式供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)(dian)主(zhu)裝(zhuang)(zhuang)備(bei)的技術(shu)水平間(jian)隔不(bu)應高于3米

(3)配電箱、開關箱應裝設(she)(she)在(zai)干燥、通(tong)風及(ji)常溫(wen)場所(suo);不得裝設(she)(she)在(zai)有嚴重損傷作用(yong)的煙氣、液(ye)體及(ji)其(qi)它(ta)有害(hai)介質(zhi)中。不得裝設(she)(she)在(zai)易受(shou)外(wai)來固體物撞擊、強烈振(zhen)動(dong),液(ye)體侵濺(jian)及(ji)熱源(yuan)烘烤的場所(suo);

(4)配電(dian)配電(dian)箱、開關箱周圍應有足夠二(er)人同時(shi)工(gong)作的空間和(he)通道。不(bu)(bu)得堆放任何妨礙操作、維修的物品;不(bu)(bu)得有灌(guan)木、雜草

(5)配(pei)電箱(xiang)(xiang)、開(kai)關箱(xiang)(xiang)應裝(zhuang)(zhuang)設端正(zheng)、牢(lao)固(gu)(gu),移動式配(pei)電箱(xiang)(xiang)、開(kai)關箱(xiang)(xiang)應裝(zhuang)(zhuang)設在堅(jian)固(gu)(gu)的支架(jia)上。

(6)固定(ding)式配電箱(xiang)、開(kai)關箱(xiang)的(de)下底與地面的(de)垂直距(ju)離(li)應(ying)大于(yu)(yu)1.3m,小(xiao)于(yu)(yu)1.5m;移動(dong)式分配電箱(xiang)、開(kai)關箱(xiang)的(de)下底與地面的(de)垂直距(ju)離(li)宜大于(yu)(yu)06m,小(xiao)于(yu)(yu)15m。

(7)配電箱、開關(guan)箱內的(de)開關(guan)電器(含插座)應按其規定的(de)位置緊(jin)固(gu)在電器安裝板上,不得(de)歪斜和松(song)(song)動。連接(jie)線應采用絕緣導線,接(jie)頭(tou)不得(de)松(song)(song)勁不得(de)有(you)外露帶電部分(fen);配電箱開關(guan)箱必須防(fang)雨、防(fang)塵措施

五、安全保障配電耐(nai)火(huo)機(ji)制

1、基礎工(gong)地(di)安全圖發(fa)現火災事故的關鍵其(qi)原因(yin)

(1)電氣(qi)線路(lu)負(fu)荷過大(da)引起(qi)火災(zai)、線路(lu)上(shang)的(de)電氣(qi)設備(bei)長時間超負(fu)荷使(shi)用,使(shi)用電流超過了(le)導線的(de)安全載流量這時如果保(bao)護裝置選(xuan)擇不合理,時間過長,線芯(xin)過熱使(shi)絕緣層損壞燃燒,造(zao)成火災(zai)。

(2)線(xian)路(lu)短(duan)路(lu)引(yin)起火(huo)災、因導線(xian)安全(quan)部(bu)距不夠,絕緣(yuan)等(deng)級(ji)不夠,所久老化、破損等(deng)或人為操作不等(deng)原因造(zao)成線(xian)路(lu)短(duan)路(lu),強大(da)的短(duan)路(lu)電流很快(kuai)轉(zhuan)換成熱(re)能,使導線(xian)嚴重發(fa)熱(re),溫度急劇升高(gao),造(zao)成導線(xian)熔(rong)化,絕緣(yuan)層燃燒,引(yin)起火(huo)災。

(3)接(jie)(jie)觸電(dian)(dian)(dian)阻過(guo)大引起(qi)火(huo)災(zai);導線(xian)接(jie)(jie)頭接(jie)(jie)不好(hao),接(jie)(jie)線(xian)柱壓接(jie)(jie)不實(shi),開關觸點接(jie)(jie)觸不牢等造(zao)成接(jie)(jie)觸電(dian)(dian)(dian)阻增(zeng)(zeng)大,隨著時間增(zeng)(zeng)長(chang)引起(qi)局部(bu)氧化,氧化后增(zeng)(zeng)大了接(jie)(jie)觸電(dian)(dian)(dian)阻。電(dian)(dian)(dian)流流過(guo)電(dian)(dian)(dian)阻時,會消耗電(dian)(dian)(dian)能(neng)產生熱量,導致過(guo)熱引起(qi)火(huo)災(zai)

(4)變壓(ya)(ya)器、電動機等設(she)備運行故障引(yin)起火災;變壓(ya)(ya)器長期過負荷運行或制造質量不良,造成線絕(jue)緣損壞(huai),匝間短路鐵芯渦流加大引(yin)起過熱,變壓(ya)(ya)器絕(jue)緣油老化(hua)、擊穿(chuan)、發熱等引(yin)起火災或爆炸。

(5)電(dian)熱設(she)備(bei)(bei)、照(zhao)(zhao)燈(deng)具使用(yong)不當(dang)(dang)引起(qi)火(huo)災(zai)(zai);電(dian)爐等電(dian)熱設(she)備(bei)(bei)表面溫度很高,如使用(yong)不當(dang)(dang)會(hui)引起(qi)火(huo)大(da)功率照(zhao)(zhao)明燈(deng)具等與易燃(ran)物距離太(tai)近引起(qi)火(huo)災(zai)(zai)。

(6)電(dian)弧(hu)、電(dian)火(huo)(huo)花引起(qi)火(huo)(huo)災;電(dian)焊機(ji)、點焊機(ji)使用時電(dian)氣弧(hu)光、火(huo)(huo)花等會引燃周圍物體,引起(qi)火(huo)(huo)災。施工現場(chang)由于電(dian)氣引發的火(huo)(huo)災原因決(jue)不止以上幾(ji)點,這就要求用電(dian)人(ren)員和現場(chang)管理人(ren)員認真執行操作規程(cheng),加強檢査,可(ke)以說是可(ke)以預防的。

2、防護(hu)高(gao)壓電器上火的舉措

面(mian)向高壓電器大火進(jin)行的情(qing)況(kuang),施工作業組識定(ding)制(zhi)中需擬訂出很好的的預放舉(ju)措(cuo)。

(1)施工組織設計時(shi)要根據電氣設備的用(yong)(yong)電量正確選擇(ze)導(dao)線截面,從(cong)理論上杜絕線路過(guo)負荷使用(yong)(yong),保(bao)護置要認真選擇(ze),當線路上出現長期過(guo)負荷時(shi),能(neng)在規定(ding)時(shi)間內動作保(bao)護線路。

(2)導(dao)線(xian)架空敷設(she)時其安(an)全間(jian)距必(bi)須滿(man)足規范要(yao)求,當配電(dian)線(xian)路采用(yong)熔斷(duan)器(qi)作短路保護時,熔體額定(ding)電(dian)流(liu)定(ding)要(yao)小于電(dian)纜或穿管絕(jue)緣導(dao)線(xian)允許載(zai)流(liu)量的25倍,或明敷絕(jue)緣導(dao)線(xian)允許載(zai)流(liu)量的15倍。經(jing)常教育用(yong)電(dian)人員(yuan)正確執行安(an)全操作規程,避免作業不當造成火災。

(3)電(dian)氣(qi)操作人員要認真執(zhi)行(xing)規(gui)范,正確連(lian)(lian)接(jie)導線,接(jie)線柱要壓牢、壓實。各種開(kai)關觸(chu)頭要壓接(jie)車固。銅鋁連(lian)(lian)接(jie)時要有過渡端子,多(duo)股導線要用(yong)端子或涮錫后(hou)再與設備安裝,以防加大電(dian)阻引起火災(zai)。

(4)配電(dian)室的耐(nai)火(huo)等級要(yao)大(da)于三(san)級,室內(nei)配置砂箱和絕緣滅(mie)火(huo)器(qi)。嚴格執行(xing)(xing)變壓(ya)器(qi)的運行(xing)(xing)檢修制度,按季(ji)度每年進行(xing)(xing)四次停電(dian)清掃和檢査。現場中的電(dian)動機嚴禁超(chao)載使(shi)用,電(dian)機周圍無(wu)易燃物(wu),發(fa)現問題及(ji)時解(jie)決,保證設備正常運轉。

(5)施工現場內(nei)嚴(yan)(yan)禁(jin)使用(yong)電爐子。使用(yong)碘鎢燈(deng)時(shi),燈(deng)與易燃物間(jian)距要大于30cm,室內(nei)不(bu)準使用(yong)功率超(chao)過(guo)100W的燈(deng)泡,嚴(yan)(yan)禁(jin)使用(yong)床頭燈(deng);

(6)使用(yong)焊機(ji)時要執行用(yong)火證制(zhi)度,并(bing)有人(ren)監護,施焊周圍不(bu)能存(cun)在易燃(ran)物體,并(bing)備齊防火設備。電焊機(ji)要放在通(tong)風良好的地方。

(7)存放(fang)易燃氣體、易燃物倉庫內的照明裝(zhuang)置一定要采用防爆(bao)型設備(bei),導(dao)線敷設、燈具安裝(zhuang)、導(dao)線與設備(bei)連接均(jun)應(ying)滿(man)足有關規范要求(qiu)。

8)現有消(xiao)防火災系(xi)統的作(zuo)業直播,24v交流電源(yuan)適配(pei)(pei)器(qi)要由(you)總箱中找出專業級控制(zhi)雙回(hui)路開(kai)關供氣(qi),還此(ci)控制(zhi)雙回(hui)路開(kai)關沒法使用漏電守護器(qi),當24v交流電源(yuan)適配(pei)(pei)器(qi)引發一定(ding)接(jie)地系(xi)統故障率(lv)時應該(gai)設兩相(xiang)電一定(ding)接(jie)地系(xi)統報警功(gong)能系(xi)統。此(ci)控制(zhi)雙回(hui)路開(kai)關供氣(qi)應由(you)三(san)個(ge)24v交流電源(yuan)適配(pei)(pei)器(qi)供氣(qi),供氣(qi)的線路應在最末(mo)端(duan)可(ke)更換。

9)道(dao)路(lu)工(gong)地(di)(di)施工(gong)圖遲早會發(fa)生的高壓(ya)電(dian)(dian)器火(huo)(huo)情時(shi),消滅高壓(ya)電(dian)(dian)器火(huo)(huo)情應目光以內特別注意:訊(xun)速割(ge)斷(duan)開關(guan)(guan)電(dian)(dian)壓(ya),為了(le)避免事態拉大(da)。割(ge)斷(duan)開關(guan)(guan)電(dian)(dian)壓(ya)該戴電(dian)(dian)絕緣毛織手套,施用有絕柄的道(dao)具。當火(huo)(huo)場撤出關(guan)(guan)過遠需剪關(guan)(guan)電(dian)(dian)線時(shi),穿越(yue)火(huo)(huo)和零線應分著錯亂剪斷(duan)為了(le)避免在鉗口處可(ke)能會導致(zhi)虛接(jie),并可(ke)以防(fang)止開關(guan)(guan)電(dian)(dian)壓(ya)線掉(diao)在在地(di)(di)上可(ke)能會導致(zhi)虛接(jie)讓人(ren)員電(dian)(dian)觸(chu)

3、消(xiao)防滅火器(qi)器(qi)系統(tong)系統(tong)內容如下

隧道2.png

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