XLPVC電線-UL21370-無鹵護套線

XLPVC電線-UL21370-無鹵護套線。

具有低(di)(di)煙(yan)無鹵(lu)(lu)LSHF（Low Smoke Halogen Free）特性(xing)(xing)(xing)(xing)(xing)的(de)電(dian)纜(lan)于(yu)20世紀70年代(dai)推(tui)出，***初用(yong)于(yu)安裝在(zai)小(xiao)型密閉空間中(zhong)，如(ru)地鐵、隧道、礦井、船舶和(he)(he)潛(qian)艇等場合。隨著(zhu)傳(chuan)統(tong)電(dian)纜(lan)在(zai)火災中(zhong)產生煙(yan)霧(wu)的(de)毒(du)性(xing)(xing)(xing)(xing)(xing)和(he)(he)腐(fu)(fu)(fu)蝕(shi)性(xing)(xing)(xing)(xing)(xing)的(de)風險(xian)越來(lai)越突(tu)出，低(di)(di)煙(yan)無鹵(lu)(lu)特性(xing)(xing)(xing)(xing)(xing)電(dian)纜(lan)的(de)使用(yong)范(fan)圍擴展(zhan)到越來(lai)越多的(de)場所，比如(ru)對關鍵設備和(he)(he)系(xi)統(tong)連續運行(xing)要求較(jiao)高(gao)的(de)數據中(zhong)心(xin)(xin)、緊(jin)急(ji)呼(hu)叫中(zhong)心(xin)(xin)和(he)(he)電(dian)信(xin)交換(huan)站；以及學校、醫院和(he)(he)養老院等無法有效迅速撤離人員的(de)特殊(shu)場所。雖然含有鹵(lu)(lu)化成(cheng)(cheng)分的(de)電(dian)纜(lan)絕緣和(he)(he)護套具有的(de)阻燃(ran)性(xing)(xing)(xing)(xing)(xing)，但在(zai)遇火后會釋放具有毒(du)性(xing)(xing)(xing)(xing)(xing)和(he)(he)腐(fu)(fu)(fu)蝕(shi)性(xing)(xing)(xing)(xing)(xing)的(de)煙(yan)氣。遇火后釋放的(de)鹵(lu)(lu)素和(he)(he)普遍(bian)存在(zai)的(de)氫氣反應，形成(cheng)(cheng)鹵(lu)(lu)化氫，遇水后形成(cheng)(cheng)鹽酸(suan)、或。這些酸(suan)可能會腐(fu)(fu)(fu)蝕(shi)重(zhong)要結構、部件(jian)和(he)(he)設備，并(bing)增加毒(du)性(xing)(xing)(xing)(xing)(xing)。含鹵(lu)(lu)的(de)電(dian)纜(lan)在(zai)燃(ran)燒時(shi)還會顯(xian)著(zhu)提(ti)高(gao)一(yi)氧化碳含量，其潛(qian)在(zai)危(wei)險(xian)更(geng)高(gao)。

實踐證明，在這些商(shang)業和(he)(he)住宅建(jian)筑(zhu)中使(shi)(shi)(shi)用低煙(yan)無鹵(lu)電纜有(you)助于減少設(she)備(bei)損壞，降低毒(du)性(xing)煙(yan)氣的(de)(de)(de)釋(shi)放，同(tong)時(shi)成(cheng)為涉及環境和(he)(he)可持續因素(su)(su)的(de)(de)(de)綠(lv)(lv)色環保新建(jian)項目(mu)(mu)的(de)(de)(de)合(he)(he)理選擇。在美國使(shi)(shi)(shi)用低煙(yan)無鹵(lu)電纜可能(neng)會滿足美國綠(lv)(lv)色建(jian)筑(zhu)委員會LEED（Leadership in Energy and Environmental Design）綠(lv)(lv)色建(jian)筑(zhu)倡議的(de)(de)(de)項目(mu)(mu)信貸條件。目(mu)(mu)前電纜產品除使(shi)(shi)(shi)用金屬導體外，重(zhong)要組成(cheng)是(shi)聚合(he)(he)物材料(liao)。幾(ji)十(shi)年來(lai)，電纜的(de)(de)(de)絕緣和(he)(he)護套材料(liao)中通常(chang)會添(tian)加溴化物等(deng)鹵(lu)化成(cheng)分來(lai)改(gai)善阻(zu)燃特(te)性(xing)。絕緣和(he)(he)護套所使(shi)(shi)(shi)用的(de)(de)(de)聚氯乙(yi)烯(xi)（PVC），氟化乙(yi)烯(xi)丙烯(xi)和(he)(he)氯化聚乙(yi)烯(xi)都(dou)含有(you)鹵(lu)素(su)(su)。其他用于電纜中的(de)(de)(de)化合(he)(he)物也有(you)可能(neng)含有(you)其他鹵(lu)化成(cheng)分的(de)(de)(de)樹脂(zhi)、添(tian)加劑和(he)(he)色母。

無鹵電子線由電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)延伸而來，符合(he)歐(ou)盟ROHS標準下(xia)的(de)環保(bao)(bao)要求，通常用于弱電(dian)(dian)工(gong)程，如電(dian)(dian)子(zi)(zi)(zi)電(dian)(dian)氣設(she)(she)(she)備的(de)內部布線(xian)(xian)(xian)(xian)(xian)等(deng)，電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)可用于電(dian)(dian)氣設(she)(she)(she)備布線(xian)(xian)(xian)(xian)(xian)、發(fa)光二極管(guan)模(mo)塊線(xian)(xian)(xian)(xian)(xian)、家用電(dian)(dian)器線(xian)(xian)(xian)(xian)(xian)、汽車(che)連(lian)(lian)接(jie)(jie)線(xian)(xian)(xian)(xian)(xian)、端子(zi)(zi)(zi)連(lian)(lian)接(jie)(jie)線(xian)(xian)(xian)(xian)(xian)、機械內部連(lian)(lian)接(jie)(jie)線(xian)(xian)(xian)(xian)(xian)、照明燈具(ju)線(xian)(xian)(xian)(xian)(xian)、電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)路、變壓器線(xian)(xian)(xian)(xian)(xian)、電(dian)(dian)路板連(lian)(lian)接(jie)(jie)線(xian)(xian)(xian)(xian)(xian)、發(fa)光二極管(guan)燈條線(xian)(xian)(xian)(xian)(xian)等(deng)。機械損(sun)(sun)傷(shang)：無(wu)鹵(lu)電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)被重物損(sun)(sun)壞(huai)，被挖掘機意外(wai)損(sun)(sun)壞(huai)，敷設(she)(she)(she)時無(wu)鹵(lu)電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)路過度彎曲，絕(jue)緣(yuan)受(shou)(shou)損(sun)(sun)，運(yun)輸時無(wu)鹵(lu)電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)路嚴重擠壓，絕(jue)緣(yuan)層和(he)保(bao)(bao)護層受(shou)(shou)損(sun)(sun)，底(di)層下(xia)沉，直埋(mai)電(dian)(dian)纜拉得太大等(deng)，絕(jue)緣(yuan)因均而損(sun)(sun)壞(huai)，甚至無(wu)鹵(lu)電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)路也(ye)可能斷裂，為了避免電(dian)(dian)纜的(de)機械損(sun)(sun)壞(huai)，可以使用架空(kong)無(wu)鹵(lu)電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)路，無(wu)鹵(lu)電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)路沿(yan)墻敷設(she)(she)(she)時，應隱(yin) 蔽，地埋(mai)應留有(you)明顯標志，禁(jin)止(zhi)在無(wu)鹵(lu)電(dian)(dian)子(zi)(zi)(zi)線(xian)(xian)(xian)(xian)(xian)路周圍取土。

絕緣受潮：由于無(wu)(wu)(wu)鹵(lu)電(dian)子(zi)(zi)(zi)線(xian)(xian)路(lu)(lu)(lu)施工(gong)工(gong)藝(yi)差(cha)，濕(shi)氣(qi)侵入(ru)電(dian)子(zi)(zi)(zi)線(xian)(xian)路(lu)(lu)(lu)內(nei)部(bu)，或(huo)無(wu)(wu)(wu)鹵(lu)電(dian)子(zi)(zi)(zi)線(xian)(xian)路(lu)(lu)(lu)內(nei)保護層損(sun)壞，濕(shi)氣(qi)進(jin)入(ru)無(wu)(wu)(wu)鹵(lu)電(dian)子(zi)(zi)(zi)線(xian)(xian)路(lu)(lu)(lu)；鉛包電(dian)纜敷設在(zai)震源(yuan)周圍，因長(chang)期振動而疲勞(lao)開裂(lie)，無(wu)(wu)(wu)鹵(lu)電(dian)子(zi)(zi)(zi)線(xian)(xian)路(lu)(lu)(lu)的外皮被腐(fu)蝕并漂浮(fu)，由于制(zhi)造質量(liang)不好，鉛包上(shang)有小(xiao)孔或(huo)裂(lie)紋(wen)；鑒于這(zhe)些現象，應加強無(wu)(wu)(wu)鹵(lu)電(dian)子(zi)(zi)(zi)線(xian)(xian)路(lu)(lu)(lu)外層的維護，并按期在(zai)外保護層上(shang)涂(tu)一層瀝(li)青(qing)。過(guo)(guo)電(dian)壓：無(wu)(wu)(wu)鹵(lu)電(dian)子(zi)(zi)(zi)線(xian)(xian)路(lu)(lu)(lu)絕緣層因大(da)氣(qi)過(guo)(guo)電(dian)壓或(huo)內(nei)部(bu)過(guo)(guo)電(dian)壓而擊穿，特別(bie)是(shi)系統(tong)內(nei)部(bu)過(guo)(guo)電(dian)壓會導致多根電(dian)纜同時擊穿，在(zai)這(zhe)方面，應安(an)裝避雷器。

絕緣老化：在無鹵電(dian)(dian)子線路(lu)的長期運行(xing)過程中，由于(yu)散熱不(bu)良或過載(zai)，絕緣材(cai)料(liao)的電(dian)(dian)氣和機械(xie)功能變(bian)差，絕緣層變(bian)脆或斷裂，如果是這種情況，應定期對無鹵素電(dian)(dian)子線路(lu)進行(xing)預防性耐(nai)壓測試，在無鹵電(dian)(dian)子線路(lu)絕緣降低不(bu)符合安(an)全(quan)運行(xing)條件(jian)，應更換新電(dian)(dian)纜。

XLPVC電線-UL21370-無鹵護套線。

消費電子產品電纜手感柔軟舒適，無鹵排線應用于(yu)電(dian)纜(lan)行業，硬度(du)(du)(du)80~90A比(bi)較普遍，硬度(du)(du)(du)過低會失去材料的(de)(de)彈(dan)(dan)性，不(bu)利于(yu)加工的(de)(de)硬度(du)(du)(du)過高會使(shi)電(dian)纜(lan)變硬。 彈(dan)(dan)性體特有的(de)(de)彈(dan)(dan)性手感，在同等(deng)硬度(du)(du)(du)下(xia)與PVC材料相比(bi)，手感的(de)(de)柔(rou)軟度(du)(du)(du)有偏(pian)差(cha)。根(gen)據我(wo)們的(de)(de)經驗，Shore 8***的(de)(de)無鹵阻燃彈(dan)(dan)性體與80~82A的(de)(de)PVC電(dian)纜(lan)產品手感柔(rou)軟程度(du)(du)(du)相近。

電纜(lan)成(cheng)品評價阻(zu)(zu)燃(ran)(ran)性***參考(kao)VW-1或FT-1的(de)(de)(de)通行標準(zhun)，明確(que)電纜(lan)整體***防(fang)火，由于不(bu)同(tong)的(de)(de)(de)電子信(xin)息線具有不(bu)同(tong)的(de)(de)(de)線型設計，其(qi)中(zhong)間絕緣(yuan)層材(cai)(cai)(cai)料(liao)(liao)(liao)受(shou)到限制（選擇PP/PE和(he)(he)Hytrel系(xi)材(cai)(cai)(cai)料(liao)(liao)(liao)），選擇阻(zu)(zu)燃(ran)(ran)性聚(ju)烯烴材(cai)(cai)(cai)料(liao)(liao)(liao)會引起電壓破壞和(he)(he)信(xin)號(hao)傳(chuan)輸缺陷，因此，阻(zu)(zu)燃(ran)(ran)電纜(lan)的(de)(de)(de)成(cheng)品對外提出了非常(chang)高的(de)(de)(de)阻(zu)(zu)燃(ran)(ran)要求(qiu)。我們(men)的(de)(de)(de)經驗，外包材(cai)(cai)(cai)料(liao)(liao)(liao)的(de)(de)(de)阻(zu)(zu)燃(ran)(ran)結焦(jiao)能力強，電纜(lan)燃(ran)(ran)燒后附著在產品上(shang)形(xing)成(cheng)致密的(de)(de)(de)碳(tan)化層，保護(hu)線材(cai)(cai)(cai)絕緣(yuan)材(cai)(cai)(cai)料(liao)(liao)(liao)，半成(cheng)品無屏蔽材(cai)(cai)(cai)料(liao)(liao)(liao)也(ye)能通過(guo)VW-1和(he)(he)FT-1防(fang)火試驗。

UL1581/758/62標準(zhun)中對彈性(xing)(xing)體或105℃ PVC材(cai)料(liao)的(de)***小拉(la)伸強度為1.05kgf/mm2，***小斷裂伸長(chang)率(lv)為100％，作為我們(men)的(de)無鹵排線(xian)材(cai)料(liao)，其力(li)學性(xing)(xing)能(neng)(neng)指(zhi)標遠遠超過了傳統PVC電纜(lan)的(de)要求(qiu)，外包材(cai)料(liao)伸長(chang)率(lv)可作為電纜(lan)成品(pin)彈性(xing)(xing)的(de)參考(kao)指(zhi)標之一。在電纜(lan)行(xing)業中使(shi)用無鹵素阻燃彈性(xing)(xing)體，應著(zhu)眼于外包材(cai)料(liao)的(de)抗(kang)(kang)拉(la)強度、抗(kang)(kang)撕強度、耐溫等級（ 80/90/105℃）、熱變形(xing)（ 121/150℃）、冷熱沖擊、非(fei)遷移等，表(biao)現出材(cai)料(liao)的(de)綜合性(xing)(xing)能(neng)(neng)。

感謝閱讀本文章，我們期待您電話咨詢無鹵護套線，XLPVC電線，UL21370，UL電線等更多信息