免费看黄色片_亚洲蜜桃V妇女_国产精品9999久久久久仙踪林_FREECHINESE内射少妇

  電(dian)線電(dian)纜產品的節(jie)(jie)距(ju)(ju)包(bao)(bao)括束線節(jie)(jie)距(ju)(ju)、絞(jiao)線節(jie)(jie)距(ju)(ju)、成纜節(jie)(jie)距(ju)(ju)、絕緣(yuan)包(bao)(bao)帶節(jie)(jie)距(ju)(ju)、屏蔽包(bao)(bao)帶節(jie)(jie)距(ju)(ju)、墊層繞包(bao)(bao)節(jie)(jie)距(ju)(ju)、鎧裝層繞包(bao)(bao)節(jie)(jie)距(ju)(ju)等。  節(jie)(jie)距(ju)(ju)是(shi)指被絞(jiao)合(he)體(ti)（或(huo)繞包(bao)(bao)帶、線）沿(yan)絞(jiao)合(he)軸線旋轉一周所前(qian)進的距(ju)(ju)離。&nbs...

一(yi)、銅(tong)絲：這(zhe)是(shi)采用(yong)(yong)(yong)的(de)(de)(de)(de)最為多的(de)(de)(de)(de)原(yuan)(yuan)料，沒有(you)之一(yi)。采用(yong)(yong)(yong)電解(jie)銅(tong)作為原(yuan)(yuan)料，經連鑄連軋工藝(yi)制成(cheng)的(de)(de)(de)(de)的(de)(de)(de)(de)銅(tong)線(xian)(xian)稱為低氧(yang)銅(tong)線(xian)(xian)；經上引法制成(cheng)的(de)(de)(de)(de)銅(tong)線(xian)(xian)稱為無氧(yang)銅(tong)線(xian)(xian)。二、鋁(lv)線(xian)(xian)：這(zhe)是(shi)由于銅(tong)價逐年上升，銅(tong)電纜制造成(cheng)本用(yong)(yong)(yong)作電線(xian)(xian)用(yong)(yong)(yong)的(de)(de)(de)(de)鋁(lv)線(xian)(xian)都(dou)要進行退火(huo)軟化過。用(yong)(yong)(yong)作電纜用(yong)(yong)(yong)的(de)(de)(de)(de)鋁(lv)線(xian)(xian)一(yi)般不...

一、在(zai)(zai)對線(xian)纜進(jin)行存(cun)放(fang)(fang)的時候(hou)，嚴禁與酸、堿(jian)及礦物油(you)類接觸,要與這些有腐蝕性的物質隔離存(cun)放(fang)(fang)；二(er)、貯存(cun)電(dian)纜的庫房內不(bu)得(de)有破壞絕緣及腐蝕金屬的有害氣(qi)體存(cun)在(zai)(zai)；三、盡可能避免(mian)在(zai)(zai)露(lu)天以裸(luo)露(lu)方式(shi)存(cun)放(fang)(fang)電(dian)纜，電(dian)纜盤不(bu)允許(xu)平放(fang)(fang)；四(si)、電(dian)纜在(zai)(zai)保管期...

  電線(xian)電纜產(chan)品(pin)的節(jie)距(ju)(ju)(ju)包(bao)(bao)括束線(xian)節(jie)距(ju)(ju)(ju)、絞(jiao)線(xian)節(jie)距(ju)(ju)(ju)、成纜節(jie)距(ju)(ju)(ju)、絕緣包(bao)(bao)帶節(jie)距(ju)(ju)(ju)、屏蔽包(bao)(bao)帶節(jie)距(ju)(ju)(ju)、墊(dian)層(ceng)繞包(bao)(bao)節(jie)距(ju)(ju)(ju)、鎧裝(zhuang)層(ceng)繞包(bao)(bao)節(jie)距(ju)(ju)(ju)等。  節(jie)距(ju)(ju)(ju)是指被絞(jiao)合(he)體（或(huo)繞包(bao)(bao)帶、線(xian)）沿絞(jiao)合(he)軸線(xian)旋轉一周所前進的距(ju)(ju)(ju)離。&nbs...

購買電(dian)線電(dian)纜產(chan)品時應(ying)仔細觀察產(chan)品的(de)(de)合(he)格證對于產(chan)品型(xing)號(hao)、規格、額(e)定電(dian)壓、芯數、生產(chan)日期、執行標準(zhun)、許可證編號(hao)等(deng)相關(guan)信息是(shi)否標注齊全(quan)，產(chan)品實(shi)物表(biao)面應(ying)印有(you)廠名、產(chan)品型(xing)號(hao)和額(e)定電(dian)壓的(de)(de)連(lian)續性標志(zhi)，核實(shi)兩者相關(guan)的(de)(de)信息是(shi)否一致(zhi)。合(he)格證上都有(you)長度標識，可先...

正確(que)選(xuan)擇電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)非常重要(yao)，怎(zen)樣選(xuan)擇電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)是很多客(ke)戶咨詢(xun)的(de)(de)問題，一(yi)起來學習一(yi)下(xia)：首先(xian)，選(xuan)用電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)產品時，最好請(qing)教有(you)經驗的(de)(de)專業電(dian)(dian)(dian)(dian)(dian)工，根據自己的(de)(de)用電(dian)(dian)(dian)(dian)(dian)負荷來采(cai)用合適截(jie)面大小(xiao)和電(dian)(dian)(dian)(dian)(dian)壓等級(ji)的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)。長度(du)和截(jie)面是一(yi)個重要(yao)因素，合格證(zheng)上都有(you)長度(du)標識，可先(xian)估...

PVC聚氯乙烯（以(yi)下(xia)簡稱PVC）絕緣材(cai)料(liao)是在PVC粉中添加穩定劑(ji)、增塑劑(ji)、阻燃劑(ji)、潤(run)滑劑(ji)及其(qi)(qi)它助劑(ji)的混(hun)合物。針對電線電纜不同應(ying)(ying)用與不同的特性需求,其(qi)(qi)配方做相應(ying)(ying)的調整。經(jing)過(guo)幾(ji)十(shi)年的生(sheng)產和使用，目前PVC制造(zao)及加工(gong)技(ji)術已經(jing)非常成(cheng)熟。PV...

電線(xian)電纜生(sheng)(sheng)產(chan)(chan)過程質量檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)是按照生(sheng)(sheng)產(chan)(chan)計劃(hua)單，工(gong)藝指導書(shu)和操(cao)作規程的(de)要求進行(xing)驗(yan)(yan)(yan)(yan)證檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)的(de)，檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)的(de)形式多種(zhong)多樣(yang)，本文著(zhu)重(zhong)闡(chan)述按生(sheng)(sheng)產(chan)(chan)過程分類的(de)產(chan)(chan)品過程檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)，即首(shou)(shou)(shou)件檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)，巡回檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)，完工(gong)檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)。一(yi).首(shou)(shou)(shou)件檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)首(shou)(shou)(shou)件檢(jian)(jian)(jian)驗(yan)(yan)(yan)(yan)應該是十分重(zhong)要的(de)，因為在開始時能夠發現(xian)問題(ti)...

電(dian)線(xian)電(dian)纜(lan)在工(gong)作的(de)(de)時候(hou)電(dian)阻(zu)會產生熱(re)量這是大(da)家都知道(dao)的(de)(de)事實。電(dian)線(xian)電(dian)纜(lan)的(de)(de)導線(xian)功(gong)(gong)(gong)率(lv)都非常(chang)小(xiao)，發熱(re)功(gong)(gong)(gong)率(lv)也有專業(ye)公式可(ke)以計算出來：q=I^2R。Q=I^2R表示(shi)通過導體的(de)(de)電(dian)流越大(da)，它的(de)(de)加熱(re)功(gong)(gong)(gong)率(lv)越大(da)（R基本上是恒定的(de)(de)）;如(ru)果電(dian)流恒定，則導線(xian)的(de)(de)發...

改革開(kai)放以(yi)后，公共事(shi)業(ye)和住宅建設(she)發展迅速，家用(yong)電(dian)(dian)氣(qi)設(she)備和其它(ta)用(yong)電(dian)(dian)設(she)備日漸增多。但不(bu)可忽視的是(shi)在(zai)每年發生的火(huo)災(zai)中(zhong)(zhong)，電(dian)(dian)氣(qi)火(huo)災(zai)也呈上(shang)升(sheng)趨(qu)勢。在(zai)短(duan)短(duan)的幾年中(zhong)(zhong)，電(dian)(dian)氣(qi)火(huo)災(zai)比(bi)例增長一倍(bei)以(yi)上(shang)，其中(zhong)(zhong)相當一部分是(shi)由電(dian)(dian)纜電(dian)(dian)線的絕緣(yuan)損壞、過熱自燃、接(jie)觸不(bu)良、電(dian)(dian)纜單(dan)...

冬季(ji)嚴寒，許(xu)多施(shi)工人員(yuan)在敷(fu)設安裝電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)時(shi)(shi)候(hou)會發(fa)現(xian)，平時(shi)(shi)質量良好的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)產(chan)品(pin)，經(jing)常(chang)會出現(xian)一些線(xian)體發(fa)硬、絕緣外皮(pi)脫落(luo)受損(sun)等現(xian)象，很多施(shi)工人員(yuan)以為是電(dian)(dian)線(xian)電(dian)(dian)纜(lan)產(chan)品(pin)本身出現(xian)了質量問題，而電(dian)(dian)纜(lan)廠家也堅持(chi)產(chan)品(pin)在出廠時(shi)(shi)已經(jing)經(jing)過檢驗，是合格的(de)產(chan)品(pin)，常(chang)常(chang)...

電(dian)線(xian)電(dian)纜(lan)老(lao)(lao)化故障的(de)(de)原(yuan)因(yin)(yin)有很(hen)多種，最直(zhi)接(jie)原(yuan)因(yin)(yin)是絕緣降(jiang)低(di)而被擊穿。導敏絕緣降(jiang)低(di)的(de)(de)因(yin)(yin)素很(hen)多，根據實際(ji)運行經(jing)驗，遼(liao)寧(ning)大元電(dian)纜(lan)小編歸納起來以下幾(ji)種情況。電(dian)纜(lan)老(lao)(lao)化的(de)(de)幾(ji)點原(yuan)因(yin)(yin)1)電(dian)纜(lan)老(lao)(lao)化原(yuan)因(yin)(yin):外力損傷(shang)。由近幾(ji)年的(de)(de)運行分析來看(kan)，尤其是在(zai)經(jing)濟高速發展(zhan)中的(de)(de)海...

電線電纜(lan)已(yi)經(jing)成為國民經(jing)濟發(fa)(fa)(fa)展的(de)支柱，在我(wo)們的(de)生(sheng)(sheng)活中(zhong)任(ren)何(he)的(de)領域(yu)都已(yi)經(jing)離(li)不開(kai)線纜(lan)。隨著節能(neng)環(huan)保的(de)不斷(duan)提倡，生(sheng)(sheng)產和制造環(huan)保無公害的(de)產品已(yi)經(jing)成為全球性發(fa)(fa)(fa)展的(de)趨勢。如何(he)推動電線電纜(lan)的(de)發(fa)(fa)(fa)展呢？1、產品研發(fa)(fa)(fa)：目前國際上環(huan)保的(de)法(fa)規(gui)越來(lai)越多，對線纜(lan)企業(ye)的(de)生(sheng)(sheng)產...

電(dian)線(xian)電(dian)纜在我(wo)國(guo)的基(ji)礎建設當(dang)中(zhong)起到了很(hen)重(zhong)要的鏈接作用，隨著(zhu)我(wo)國(guo)的不(bu)斷發展(zhan)，對(dui)于(yu)動力(li)電(dian)纜行(xing)業(ye)(ye)(ye)(ye)來(lai)說，針(zhen)對(dui)不(bu)斷變化的幣場和需求，傳統的行(xing)業(ye)(ye)(ye)(ye)模式已經不(bu)能適應(ying)幣場發展(zhan)，所以對(dui)于(yu)很(hen)多企(qi)業(ye)(ye)(ye)(ye)來(lai)說，行(xing)業(ye)(ye)(ye)(ye)的轉變刻(ke)不(bu)容緩。我(wo)國(guo)電(dian)線(xian)電(dian)纜行(xing)業(ye)(ye)(ye)(ye)仍然(ran)是繼續發展(zhan)的趨(qu)勢，但(dan)是...

  冬季嚴寒(han)，許多(duo)施(shi)工人(ren)員在(zai)敷(fu)設安裝電(dian)(dian)線電(dian)(dian)纜的時候會(hui)發(fa)現(xian)，平時質(zhi)量良(liang)好的電(dian)(dian)線電(dian)(dian)纜產(chan)品，經常會(hui)出現(xian)一些線體發(fa)硬、絕緣外皮脫落(luo)受(shou)損(sun)等現(xian)象(xiang)，很(hen)多(duo)施(shi)工人(ren)員以(yi)為是電(dian)(dian)線電(dian)(dian)纜產(chan)品本身出現(xian)了質(zhi)量問題，而(er)電(dian)(dian)纜廠家也堅持產(chan)品在(zai)出廠時已經...

    航空航天(tian)、機(ji)(ji)車(che)車(che)輛(liang)、能源、鋼鐵、有色金屬冶煉、石(shi)油(you)開采、電機(ji)(ji)、建(jian)設等領域需(xu)用耐(nai)(nai)高溫電線電纜。長期連續工作溫度(du)(du)(du)(du)125度(du)(du)(du)(du)、135度(du)(du)(du)(du)、150度(du)(du)(du)(du)、180度(du)(du)(du)(du)、200度(du)(du)(du)(du)、250度(du)(du)(du)(du)及250度(du)(du)(du)(du)以(yi)上的耐(nai)(nai)高...

  為了(le)增強人們的安(an)(an)全(quan)意識(shi)，保障生活(huo)安(an)(an)全(quan)與財產安(an)(an)全(quan)，提高電氣系(xi)統的安(an)(an)全(quan)可靠(kao)性(xing)，大元(yuan)電纜小編(bian)總(zong)結出安(an)(an)全(quan)用電的幾點(dian)小常(chang)識(shi)：1.總(zong)閘處保險絲的選(xuan)用要合理(li)，不(bu)允(yun)許使(shi)用銅絲、鋁絲或鐵絲來(lai)代替。2.所有(you)的大功率或者(zhe)有(you)相關使(shi)用說(shuo)明...

      電線電纜(lan)的(de)制造與大多數機電產(chan)品(pin)的(de)生(sheng)產(chan)方式是完全不(bu)同的(de)。機電產(chan)品(pin)通常(chang)采(cai)用將(jiang)另件裝(zhuang)配成部件、多個部件再裝(zhuang)配成單臺(tai)產(chan)品(pin)，產(chan)品(pin)以臺(tai)數或(huo)件數計(ji)量。電線電纜(lan)是以長度為(wei)基(ji)本(ben)計(ji)量單位...

大元電纜廠家利用引進的部分關鍵專用設備和技術添加鋁(lv)(lv)鋯合金，將熔鋁(lv)(lv)燃(ran)煤(mei)爐(lu)改造成(cheng)熔鋁(lv)(lv)燃(ran)油或天然氣爐(lu)，全部消除熔鋁(lv)(lv)燃(ran)煤(mei)爐(lu)燃(ran)煤(mei)煙(yan)塵和煙(yan)氣的排放(fang)，并設置煙(yan)氣過濾裝置凈化煙(yan)氣，提高排放(fang)質(zhi)量，提高成(cheng)品率，降低成(cheng)本，同時使導線工作溫度(du)從(cong)70℃提高到150℃...

假冒劣(lie)(lie)質(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜生(sheng)產(chan)者(zhe)(zhe)為了獲取暴(bao)利，不顧廣大(da)消(xiao)費(fei)者(zhe)(zhe)的(de)利益，大(da)量生(sheng)產(chan)劣(lie)(lie)質(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜產(chan)品，擾亂(luan)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜市場(chang)，損害廣大(da)用戶的(de)利益。所以，正(zheng)確選擇電(dian)(dian)線(xian)(xian)電(dian)(dian)纜顯得非常重要(yao)，什么樣(yang)的(de)產(chan)品才(cai)合格(ge)呢？電(dian)(dian)線(xian)(xian)電(dian)(dian)纜作為電(dian)(dian)力傳輸的(de)主要(yao)載體，廣泛應用于電(dian)(dian)器裝(zhuang)備、照明(ming)線(xian)(xian)路(lu)...

電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)作為電(dian)(dian)(dian)力傳輸(shu)的主要(yao)載體，廣泛應用于電(dian)(dian)(dian)器(qi)裝備、照明線(xian)(xian)路、家用電(dian)(dian)(dian)器(qi)等方面，鐵嶺大元電(dian)(dian)(dian)纜(lan)(lan)(lan)小編給大家普及下(xia)小知識：選購電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)時注意以下(xia)幾(ji)點：1.產(chan)品(pin)(pin)的標識。選購電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)產(chan)品(pin)(pin)時應觀(guan)察產(chan)品(pin)(pin)的合格證對于產(chan)品(pin)(pin)型號、規格、額定(ding)電(dian)(dian)(dian)壓、芯(xin)數、生產(chan)日期、...

電(dian)線電(dian)纜是施(shi)工過程(cheng)不可缺少的(de)材料，一旦電(dian)纜起(qi)火(huo)，將會(hui)引起(qi)嚴重火(huo)災和(he)停電(dian)事(shi)故(gu)(gu)，此外(wai)，電(dian)纜燃燒時產生大量濃(nong)煙和(he)毒氣，不僅污染環境(jing)，而且危(wei)及(ji)人(ren)的(de)生命安全(quan)。據筆者統計，去(qu)年發(fa)生的(de)電(dian)線電(dian)纜火(huo)災事(shi)故(gu)(gu)，占(zhan)電(dian)氣火(huo)災事(shi)故(gu)(gu)總數的(de)40%左右。為了增(zeng)強人(ren)們的(de)安全(quan)意(yi)...

與中國(guo)不同(tong)的(de)(de)西(xi)方國(guo)家(jia)是(shi)一個完(wan)全的(de)(de)私有(you)制國(guo)家(jia)，國(guo)際"IEC"標準的(de)(de)前身最初也是(shi)誕(dan)生在單個企業主地盤的(de)(de)產(chan)物。中國(guo)是(shi)世界上最大電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)生產(chan)國(guo)，全球名(ming)列第一的(de)(de)年7000億的(de)(de)產(chan)值(zhi)。電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)產(chan)業發展(zhan)迅速，對工(gong)業經濟的(de)(de)支撐作(zuo)用日(ri)益(yi)明顯(xian)...

  電(dian)線電(dian)纜行(xing)業(ye)發展(zhan)迅速，到現在(zai)已經(jing)是(shi)我(wo)國第二大(da)產業(ye)，現在(zai)已經(jing)是(shi)到了(le)最為(wei)巔峰的時期(qi)，相信(xin)要想百(bai)尺竿頭更進一步，還(huan)是(shi)有不(bu)小的阻力。盡(jin)管電(dian)線電(dian)纜行(xing)業(ye)發展(zhan)也(ye)這(zhe)么多年了(le)，但是(shi)關于(yu)電(dian)線電(dian)纜的制造(zao)原料(liao)還(huan)是(shi)有很多外(wai)行(xing)不(bu)了(le)解(jie)，今(jin)天小...