UL無鹵電線-濟南UL無鹵電線-濟寧UL無鹵電線

UL無鹵電線-濟南UL無鹵電線-濟寧UL無鹵電線。

具有(you)低煙(yan)(yan)無鹵(lu)LSHF（Low Smoke Halogen Free）特(te)性(xing)的(de)(de)(de)電(dian)(dian)(dian)纜(lan)于(yu)20世紀70年代推(tui)出(chu)，***初用于(yu)安(an)裝在(zai)(zai)小型密閉空間中(zhong)，如(ru)地鐵、隧道、礦(kuang)井(jing)、船舶和潛艇等(deng)場(chang)合(he)。隨著傳(chuan)統電(dian)(dian)(dian)纜(lan)在(zai)(zai)火災中(zhong)產生煙(yan)(yan)霧(wu)的(de)(de)(de)毒(du)(du)性(xing)和腐(fu)(fu)蝕(shi)性(xing)的(de)(de)(de)風(feng)險(xian)越來越突出(chu)，低煙(yan)(yan)無鹵(lu)特(te)性(xing)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)使用范圍(wei)擴展到越來越多的(de)(de)(de)場(chang)所(suo)，比如(ru)對關(guan)鍵(jian)設備(bei)和系統連續運行要求較高的(de)(de)(de)數據中(zhong)心(xin)(xin)、緊急呼叫中(zhong)心(xin)(xin)和電(dian)(dian)(dian)信(xin)交換站；以及學校、醫院(yuan)和養老院(yuan)等(deng)無法有(you)效迅(xun)速撤離人員(yuan)的(de)(de)(de)特(te)殊場(chang)所(suo)。雖然含(han)有(you)鹵(lu)化成分的(de)(de)(de)電(dian)(dian)(dian)纜(lan)絕緣(yuan)和護套(tao)具有(you)的(de)(de)(de)阻燃(ran)性(xing)，但在(zai)(zai)遇(yu)火后會(hui)釋放具有(you)毒(du)(du)性(xing)和腐(fu)(fu)蝕(shi)性(xing)的(de)(de)(de)煙(yan)(yan)氣。遇(yu)火后釋放的(de)(de)(de)鹵(lu)素和普遍存在(zai)(zai)的(de)(de)(de)氫氣反應，形成鹵(lu)化氫，遇(yu)水(shui)后形成鹽(yan)酸(suan)、或。這些酸(suan)可能會(hui)腐(fu)(fu)蝕(shi)重要結構、部件(jian)和設備(bei)，并增加毒(du)(du)性(xing)。含(han)鹵(lu)的(de)(de)(de)電(dian)(dian)(dian)纜(lan)在(zai)(zai)燃(ran)燒(shao)時(shi)還會(hui)顯著提高一(yi)氧化碳(tan)含(han)量(liang)，其潛在(zai)(zai)危(wei)險(xian)更高。

實踐(jian)證明，在這些商(shang)業和(he)住宅建筑(zhu)中(zhong)(zhong)(zhong)使用(yong)低煙無(wu)(wu)鹵(lu)電(dian)纜(lan)有(you)(you)助于(yu)減少(shao)設備損壞，降(jiang)低毒性(xing)煙氣的(de)釋放，同(tong)時(shi)成為涉(she)及環境和(he)可(ke)持續(xu)因素的(de)綠色(se)環保新建項(xiang)目(mu)的(de)合(he)理選(xuan)擇。在美國(guo)使用(yong)低煙無(wu)(wu)鹵(lu)電(dian)纜(lan)可(ke)能會(hui)滿足(zu)美國(guo)綠色(se)建筑(zhu)委(wei)員會(hui)LEED（Leadership in Energy and Environmental Design）綠色(se)建筑(zhu)倡議的(de)項(xiang)目(mu)信貸條件。目(mu)前電(dian)纜(lan)產品除使用(yong)金(jin)屬導體外，重要組成是聚(ju)合(he)物(wu)材料。幾十年來(lai)，電(dian)纜(lan)的(de)絕緣和(he)護(hu)套(tao)材料中(zhong)(zhong)(zhong)通常(chang)會(hui)添加溴化(hua)物(wu)等鹵(lu)化(hua)成分來(lai)改善阻燃(ran)特性(xing)。絕緣和(he)護(hu)套(tao)所使用(yong)的(de)聚(ju)氯乙(yi)烯（PVC），氟化(hua)乙(yi)烯丙(bing)烯和(he)氯化(hua)聚(ju)乙(yi)烯都含有(you)(you)鹵(lu)素。其他(ta)用(yong)于(yu)電(dian)纜(lan)中(zhong)(zhong)(zhong)的(de)化(hua)合(he)物(wu)也有(you)(you)可(ke)能含有(you)(you)其他(ta)鹵(lu)化(hua)成分的(de)樹脂(zhi)、添加劑和(he)色(se)母。

UL無鹵電線-濟南UL無鹵電線-濟寧UL無鹵電線。

為了促(cu)進(jin)(jin)HF和(he)(he)LSHF電纜(lan)(lan)(lan)的持續開發和(he)(he)采用，UL提(ti)供了一系列產(chan)(chan)品認證服(fu)務(wu)，可以評(ping)估電線(xian)電纜(lan)(lan)(lan)產(chan)(chan)品的無(wu)鹵和(he)(he)低煙無(wu)鹵的特性(xing)。這一自愿性(xing)認證，對電纜(lan)(lan)(lan)材(cai)料的鹵素特性(xing)將按照標準(zhun)UL 2885“可燃材(cai)料燃燒時(shi)酸(suan)性(xing)氣體，酸(suan)度和(he)(he)電導(dao)率調(diao)查(cha)及(ji)鹵素評(ping)估”進(jin)(jin)行測試評(ping)估。這一標準(zhun)主要基于IEC 62821系列標準(zhun)，通(tong)過以下(xia)四個階段的測試，對電纜(lan)(lan)(lan)絕緣、護套，以及(ji)填料、膠帶和(he)(he)包覆物(wu)等非金屬(shu)部件進(jin)(jin)行評(ping)定：

階段(duan)0，鈉熔（依據(ju)IEC 62821-1，-2）

階(jie)段1，pH值和電導率（依據IEC 60754-2）

階段2，溴和氯作為HCI（依據IEC 60754-11）

階段3，含氟量（依據IEC 62821-1，-2）

將滿足標(biao)(biao)準UL 2885鹵(lu)素含(han)量(liang)要求的(de)(de)電纜材料用于(yu)電線電纜中，再對其按(an)照IEC 62821-3評估燃燒時(shi)釋煙密度，同時(shi)滿足這兩(liang)項，則可以將LSHF（低(di)(di)煙無鹵(lu)）的(de)(de)標(biao)(biao)志(zhi)添加于(yu)已獲(huo)得(de)UL安全(quan)認(ren)證的(de)(de)電纜型號后(hou)，比如：CMR-LSHF，TC-LSHF，OFNP-LSHF等等，而獲(huo)得(de)此類認(ren)證的(de)(de)廠家(jia)亦可在UL在線認(ren)證系統中被查(cha)詢到。并(bing)在未來的(de)(de)生產中按(an)照UL“跟(gen)蹤檢驗服務”（FUS）對產品(pin)進行定期查(cha)驗，持續(xu)(xu)的(de)(de)監測和測試，以產品(pin)的(de)(de)生產持續(xu)(xu)符(fu)合低(di)(di)煙無鹵(lu)的(de)(de)特性要求。

無鹵電子線由電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)延伸(shen)而來，符合歐盟ROHS標準下(xia)的環保要求，通常用于(yu)弱電(dian)(dian)(dian)工程，如電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)電(dian)(dian)(dian)氣設備的內(nei)部布線(xian)(xian)(xian)等，電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)可(ke)用于(yu)電(dian)(dian)(dian)氣設備布線(xian)(xian)(xian)、發光二極管模塊線(xian)(xian)(xian)、家用電(dian)(dian)(dian)器線(xian)(xian)(xian)、汽車連接(jie)(jie)線(xian)(xian)(xian)、端子(zi)(zi)(zi)(zi)連接(jie)(jie)線(xian)(xian)(xian)、機械(xie)內(nei)部連接(jie)(jie)線(xian)(xian)(xian)、照明(ming)燈(deng)具(ju)線(xian)(xian)(xian)、電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)路(lu)(lu)、變壓器線(xian)(xian)(xian)、電(dian)(dian)(dian)路(lu)(lu)板(ban)連接(jie)(jie)線(xian)(xian)(xian)、發光二極管燈(deng)條線(xian)(xian)(xian)等。機械(xie)損(sun)傷：無(wu)鹵電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)被(bei)重(zhong)物損(sun)壞，被(bei)挖掘機意外損(sun)壞，敷設時(shi)無(wu)鹵電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)路(lu)(lu)過度彎曲，絕緣(yuan)受損(sun)，運輸(shu)時(shi)無(wu)鹵電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)路(lu)(lu)嚴重(zhong)擠壓，絕緣(yuan)層(ceng)和保護層(ceng)受損(sun)，底(di)層(ceng)下(xia)沉，直埋(mai)電(dian)(dian)(dian)纜拉得太大等，絕緣(yuan)因均而損(sun)壞，甚至(zhi)無(wu)鹵電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)路(lu)(lu)也可(ke)能(neng)斷裂，為了避(bi)免電(dian)(dian)(dian)纜的機械(xie)損(sun)壞，可(ke)以使用架空無(wu)鹵電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)路(lu)(lu)，無(wu)鹵電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)路(lu)(lu)沿墻敷設時(shi)，應(ying)隱 蔽，地(di)埋(mai)應(ying)留有明(ming)顯標志，禁止在無(wu)鹵電(dian)(dian)(dian)子(zi)(zi)(zi)(zi)線(xian)(xian)(xian)路(lu)(lu)周圍取土。

絕緣受(shou)潮：由于無(wu)(wu)鹵(lu)電(dian)(dian)(dian)(dian)子(zi)線路(lu)施工(gong)工(gong)藝差，濕氣侵入電(dian)(dian)(dian)(dian)子(zi)線路(lu)內(nei)部(bu)(bu)，或無(wu)(wu)鹵(lu)電(dian)(dian)(dian)(dian)子(zi)線路(lu)內(nei)保護(hu)層(ceng)損(sun)壞，濕氣進入無(wu)(wu)鹵(lu)電(dian)(dian)(dian)(dian)子(zi)線路(lu)；鉛包(bao)電(dian)(dian)(dian)(dian)纜敷設在震源周圍，因(yin)長期(qi)振動(dong)而(er)疲勞開(kai)裂，無(wu)(wu)鹵(lu)電(dian)(dian)(dian)(dian)子(zi)線路(lu)的外(wai)皮被(bei)腐蝕并(bing)(bing)漂浮，由于制造質(zhi)量(liang)不好，鉛包(bao)上有小孔或裂紋(wen)；鑒于這些現象，應(ying)加強(qiang)無(wu)(wu)鹵(lu)電(dian)(dian)(dian)(dian)子(zi)線路(lu)外(wai)層(ceng)的維護(hu)，并(bing)(bing)按(an)期(qi)在外(wai)保護(hu)層(ceng)上涂一(yi)層(ceng)瀝青(qing)。過電(dian)(dian)(dian)(dian)壓(ya)(ya)：無(wu)(wu)鹵(lu)電(dian)(dian)(dian)(dian)子(zi)線路(lu)絕緣層(ceng)因(yin)大氣過電(dian)(dian)(dian)(dian)壓(ya)(ya)或內(nei)部(bu)(bu)過電(dian)(dian)(dian)(dian)壓(ya)(ya)而(er)擊(ji)穿，特(te)別是系統(tong)內(nei)部(bu)(bu)過電(dian)(dian)(dian)(dian)壓(ya)(ya)會導致多根(gen)電(dian)(dian)(dian)(dian)纜同時擊(ji)穿，在這方面，應(ying)安裝避雷器(qi)。

絕(jue)緣(yuan)老化(hua)：在無(wu)鹵(lu)電子線路的長期運行過程中，由于(yu)散(san)熱不(bu)良或過載，絕(jue)緣(yuan)材料的電氣和(he)機械功能變差，絕(jue)緣(yuan)層變脆或斷裂，如果(guo)是這種情況，應(ying)定期對無(wu)鹵(lu)素(su)電子線路進行預防性耐(nai)壓測試，在無(wu)鹵(lu)電子線路絕(jue)緣(yuan)降低不(bu)符(fu)合安全(quan)運行條件(jian)，應(ying)更(geng)換新電纜(lan)。

來電咨詢產品/服務(wu)，給您的(de)不(bu)僅(jin)僅(jin)是濟南UL無(wu)(wu)鹵(lu)電線(xian)(xian)，濟寧UL無(wu)(wu)鹵(lu)電線(xian)(xian)，UL無(wu)(wu)鹵(lu)電線(xian)(xian)，UL電線(xian)(xian)的(de)信息