礦物絕(jue)緣電(dian)纜(lan)的價格貴嗎？

很多人聽到礦(kuang)(kuang)(kuang)(kuang)物(wu)(wu)絕緣(yuan)(yuan)電(dian)(dian)(dian)纜(lan)的(de)(de)反應就是一個(ge)字貴，巫(wu)山礦(kuang)(kuang)(kuang)(kuang)物(wu)(wu)絕緣(yuan)(yuan)電(dian)(dian)(dian)纜(lan)，那事實(shi)(shi)真的(de)(de)如此嗎？其實(shi)(shi)礦(kuang)(kuang)(kuang)(kuang)物(wu)(wu)絕緣(yuan)(yuan)電(dian)(dian)(dian)纜(lan)相比其他電(dian)(dian)(dian)纜(lan)至少(shao)(shao)可(ke)以(yi)(yi)減少(shao)(shao)1-2個(ge)規格(ge)(ge)使(shi)用(yong)(yong)，而(er)且(qie)還能節省一個(ge)接地(di)線芯(xin)。加(jia)上近年來電(dian)(dian)(dian)纜(lan)制造商(shang)和材料(liao)供應商(shang)的(de)(de)不(bu)斷(duan)努(nu)力，礦(kuang)(kuang)(kuang)(kuang)物(wu)(wu)絕緣(yuan)(yuan)電(dian)(dian)(dian)纜(lan)的(de)(de)價格(ge)(ge)也是不(bu)斷(duan)地(di)接近普(pu)通(tong)電(dian)(dian)(dian)纜(lan)的(de)(de)價格(ge)(ge)。礦(kuang)(kuang)(kuang)(kuang)物(wu)(wu)絕緣(yuan)(yuan)電(dian)(dian)(dian)纜(lan)界面超過(guo)25mm2的(de)(de)單芯(xin)，電(dian)(dian)(dian)纜(lan)的(de)(de)載流(liu)量遠大于普(pu)通(tong)電(dian)(dian)(dian)纜(lan)的(de)(de)載流(liu)量，同時礦(kuang)(kuang)(kuang)(kuang)物(wu)(wu)絕緣(yuan)(yuan)電(dian)(dian)(dian)纜(lan)的(de)(de)銅護套(tao)可(ke)以(yi)(yi)直接用(yong)(yong)于接地(di)線，因(yin)襲在(zai)選擇礦(kuang)(kuang)(kuang)(kuang)物(wu)(wu)絕緣(yuan)(yuan)電(dian)(dian)(dian)纜(lan)時可(ke)以(yi)(yi)較少(shao)(shao)電(dian)(dian)(dian)纜(lan)芯(xin)，因(yin)此礦(kuang)(kuang)(kuang)(kuang)物(wu)(wu)絕緣(yuan)(yuan)電(dian)(dian)(dian)纜(lan)的(de)(de)價格(ge)(ge)其實(shi)(shi)已經趨近于普(pu)通(tong)電(dian)(dian)(dian)纜(lan)了，所以(yi)(yi)可(ke)以(yi)(yi)放(fang)心的(de)(de)購買(mai)使(shi)用(yong)(yong)啦

重慶歐(ou)之聯電纜有限公司(si)

重慶歐之聯電(dian)(dian)纜(lan)有(you)(you)限公司，bttrz防(fang)火電(dian)(dian)纜(lan)，NG-A防(fang)火電(dian)(dian)纜(lan)。 UL阻燃(ran)(ran)標(biao)準(zhun)主要有(you)(you)以(yi)下(xia)幾(ji)個(ge)等級(ji)(ji)(ji)(ji)：CM，CMG，CMX。1) 增壓(ya)(ya)級(ji)(ji)(ji)(ji)-CMP級(ji)(ji)(ji)(ji)（送風(feng)燃(ran)(ran)燒(shao)測(ce)試/斯(si)泰(tai)鈉(na)風(feng)道實(shi)驗Plenum Flame Test/Steiner TunnelTest）這(zhe)是 UL防(fang)火標(biao)準(zhun)中(zhong)要求較(jiao)高的(de)(de)電(dian)(dian)纜(lan)大(da)(da)足電(dian)(dian)纜(lan)，彭水電(dian)(dian)纜(lan)，（Plenum Cable），適(shi)用(yong)(yong)(yong)安全標(biao)準(zhun)為(wei)UL910，實(shi)驗規(gui)定(ding)在(zai)裝置(zhi)的(de)(de)水平風(feng)道上敷(fu)設多條試樣，用(yong)(yong)(yong)87.9KW煤氣本(ben)(ben)生燈(deng)(deng)（300，000BTU/Hr）燃(ran)(ran)燒(shao)20分鐘。合(he)格(ge)標(biao)準(zhun)為(wei)火焰不可(ke)延伸(shen)到距煤氣本(ben)(ben)生燈(deng)(deng)火焰前端5英尺以(yi)外(wai)。光(guang)密度(du)(du)的(de)(de)峰值較(jiao)大(da)(da)為(wei)0.5，平均密度(du)(du)值較(jiao)大(da)(da)為(wei)0.15。這(zhe)種CMP電(dian)(dian)纜(lan)通(tong)常(chang)安裝在(zai)通(tong)風(feng)管(guan)道或空氣處理設備使用(yong)(yong)(yong)的(de)(de)空氣回流增壓(ya)(ya)系統(tong)中(zhong)，被(bei)加(jia)拿大(da)(da)和美國所認可(ke)采用(yong)(yong)(yong)。符合(he)UL910標(biao)準(zhun)的(de)(de)FEP/PLENUM材(cai)(cai)料，阻燃(ran)(ran)性能要比(bi)符合(he)IEC60332-1及(ji)IEC60332-3標(biao)準(zhun)的(de)(de)低煙無鹵材(cai)(cai)料的(de)(de)阻燃(ran)(ran)性能好，燃(ran)(ran)燒(shao)起(qi)來煙的(de)(de)濃(nong)度(du)(du)低。2) 干線級(ji)(ji)(ji)(ji)-CMR級(ji)(ji)(ji)(ji)（直(zhi)立燃(ran)(ran)燒(shao)測(ce)試Riser Flame Test）這(zhe)是 UL標(biao)準(zhun)中(zhong)商用(yong)(yong)(yong)級(ji)(ji)(ji)(ji)電(dian)(dian)纜(lan)（Riser Cable），適(shi)用(yong)(yong)(yong)安全標(biao)準(zhun)為(wei)UL1666。實(shi)驗規(gui)定(ding)在(zai)模(mo)擬直(zhi)立軸上敷(fu)設多條試樣，用(yong)(yong)(yong)規(gui)定(ding)的(de)(de)154.5KW煤氣本(ben)(ben)生燈(deng)(deng)（527，500BTU/Hr）30分鐘。

礦(kuang)(kuang)物絕緣電(dian)(dian)纜(lan)合格標準(zhun)(zhun)為(wei)火焰不可蔓延到(dao)12英尺高的房間的上部。干線(xian)級電(dian)(dian)纜(lan)沒有(you)煙(yan)霧(wu)濃(nong)度規范，一般用(yong)(yong)于樓(lou)層垂(chui)直(zhi)(zhi)和(he)水平布線(xian)使用(yong)(yong)。3) 商(shang)用(yong)(yong)級-CM級（垂(chui)直(zhi)(zhi)燃燒(shao)測試(shi)Vertial Tray Flame Test）這(zhe)是 UL標準(zhun)(zhun)中(zhong)商(shang)用(yong)(yong)級電(dian)(dian)纜(lan)，適用(yong)(yong)安(an)全標準(zhun)(zhun)為(wei)UL1581。實驗規定在垂(chui)直(zhi)(zhi)8英尺高的支架上敷(fu)設多條試(shi)樣，用(yong)(yong)規定的20KW帶狀噴燈燃燒(shao)（70，礦(kuang)(kuang)物絕緣電(dian)(dian)纜(lan)有(you)哪些，000BTU/Hr）20分鐘。合格標準(zhun)(zhun)為(wei)火焰不可蔓延到(dao)電(dian)(dian)纜(lan)的上端并(bing)自行熄滅(mie)。UL1581和(he)IEC60332-3C類(lei)似，只是敷(fu)設電(dian)(dian)纜(lan)根數不同(tong)。商(shang)用(yong)(yong)級電(dian)(dian)纜(lan)沒有(you)煙(yan)霧(wu)濃(nong)度規范，一般僅應(ying)用(yong)(yong)于同(tong)一樓(lou)層的水平走線(xian)，不應(ying)用(yong)(yong)于樓(lou)層的垂(chui)直(zhi)(zhi)布線(xian)上。bttrz防(fang)水電(dian)(dian)纜(lan)，重慶歐之聯(lian)電(dian)(dian)纜(lan)有(you)限(xian)公司，NG-A防(fang)火電(dian)(dian)纜(lan)。

4) 礦(kuang)物絕緣(yuan)電(dian)(dian)纜(lan)通用(yong)(yong)級(ji)(ji)(ji)(ji)(ji)-CMG級(ji)(ji)(ji)(ji)(ji)（垂直(zhi)燃(ran)燒測試(shi)(shi)(shi)Vertial Tray Flame Test）這是(shi)(shi) UL標準(zhun)(zhun)(zhun)中(zhong)(zhong)通用(yong)(yong)級(ji)(ji)(ji)(ji)(ji)電(dian)(dian)纜(lan)，適用(yong)(yong)安全標準(zhun)(zhun)(zhun)為(wei)(wei)UL1581。商用(yong)(yong)級(ji)(ji)(ji)(ji)(ji)和(he)(he)通用(yong)(yong)級(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)測試(shi)(shi)(shi)條件類似(si)，礦(kuang)物絕緣(yuan)電(dian)(dian)纜(lan)安裝，同為(wei)(wei)加拿大(da)和(he)(he)美國認可(ke)使用(yong)(yong)。通用(yong)(yong)級(ji)(ji)(ji)(ji)(ji)電(dian)(dian)纜(lan)沒有煙(yan)霧濃度規范，一(yi)般僅應(ying)用(yong)(yong)于同一(yi)樓層的(de)(de)(de)(de)(de)水(shui)平走線(xian)，不(bu)(bu)應(ying)用(yong)(yong)于樓層的(de)(de)(de)(de)(de)垂直(zhi)布線(xian)上。5) 家(jia)居級(ji)(ji)(ji)(ji)(ji)- CMX級(ji)(ji)(ji)(ji)(ji)（垂直(zhi)燃(ran)燒測試(shi)(shi)(shi)Vertial Wire Flame Test）這是(shi)(shi) UL標準(zhun)(zhun)(zhun)中(zhong)(zhong)家(jia)居級(ji)(ji)(ji)(ji)(ji)電(dian)(dian)纜(lan)（Restricted Cable），適用(yong)(yong)安全標準(zhun)(zhun)(zhun)為(wei)(wei)UL1581，VW-1。實驗(yan)(yan)規定試(shi)(shi)(shi)樣(yang)保持垂直(zhi)，用(yong)(yong)試(shi)(shi)(shi)驗(yan)(yan)用(yong)(yong)的(de)(de)(de)(de)(de)噴(pen)燈燃(ran)燒（30，000 TU/Hr）15秒(miao)(miao)鐘(zhong)，然后停止15秒(miao)(miao)鐘(zhong)，反復(fu)5次(ci)。合格標準(zhun)(zhun)(zhun)為(wei)(wei)余火焰不(bu)(bu)可(ke)超過(guo)60秒(miao)(miao)鐘(zhong)，試(shi)(shi)(shi)樣(yang)不(bu)(bu)可(ke)燒損25%以上，墊(dian)在(zai)(zai)底部的(de)(de)(de)(de)(de)用(yong)(yong)棉不(bu)(bu)可(ke)被落(luo)下物引燃(ran)。UL1581-VW-1和(he)(he)IEC60332-1類似(si)，只是(shi)(shi)燃(ran)燒的(de)(de)(de)(de)(de)時間不(bu)(bu)同。這種等級(ji)(ji)(ji)(ji)(ji)也沒有煙(yan)霧或(huo)毒性(xing)規范，僅用(yong)(yong)于敷設(she)(she)單(dan)條電(dian)(dian)纜(lan)的(de)(de)(de)(de)(de)家(jia)庭或(huo)小型(xing)辦公室系(xi)統中(zhong)(zhong)。這類電(dian)(dian)纜(lan)不(bu)(bu)應(ying)成捆敷設(she)(she)使用(yong)(yong)，必須套管(guan)。 [1] 低(di)(di)煙(yan)無(wu)鹵(lu)線(xian)纜(lan)（LSOH）。低(di)(di)煙(yan)無(wu)鹵(lu)線(xian)纜(lan)顧(gu)名(ming)思義(yi)就(jiu)是(shi)(shi)遇火后發煙(yan)量少，不(bu)(bu)含鹵(lu)素的(de)(de)(de)(de)(de)線(xian)纜(lan)。低(di)(di)煙(yan)無(wu)鹵(lu)的(de)(de)(de)(de)(de)原(yuan)則就(jiu)是(shi)(shi)讓線(xian)纜(lan)在(zai)(zai)火焰中(zhong)(zhong)燃(ran)燒時不(bu)(bu)會(hui)產生(sheng)很多的(de)(de)(de)(de)(de)毒氣和(he)(he)煙(yan)霧，從而讓人們(men)在(zai)(zai)燃(ran)燒中(zhong)(zhong)不(bu)(bu)會(hui)造成很大(da)的(de)(de)(de)(de)(de)傷亡(wang)，大(da)大(da)提(ti)高了人們(men)在(zai)(zai)火災中(zhong)(zhong)的(de)(de)(de)(de)(de)生(sheng)還率。

電纜(lan)絕緣和護(hu)套材料性能試(shi)驗介紹(shao)

包括熱失重、熱沖(chong)擊、高(gao)溫(wen)(wen)壓力(li)、低(di)溫(wen)(wen)彎曲、低(di)溫(wen)(wen)拉伸、低(di)溫(wen)(wen)沖(chong)擊、阻燃性(xing)(xing)能等等。這些都是(shi)考查絕緣(yuan)和護套的(de)(de)(de)塑料材(cai)料的(de)(de)(de)性(xing)(xing)能好(hao)壞(huai)，如熱失重試驗是(shi)檢(jian)測經(jing)過7天80℃的(de)(de)(de)高(gao)溫(wen)(wen)老化后材(cai)料降解、揮發的(de)(de)(de)程(cheng)度;熱沖(chong)擊檢(jian)測在(zai)150℃高(gao)溫(wen)(wen)1h后經(jing)特殊卷繞的(de)(de)(de)絕緣(yuan)表面是(shi)否有開(kai)裂(lie);高(gao)溫(wen)(wen)壓力(li)檢(jian)測絕緣(yuan)材(cai)料在(zai)經(jing)過高(gao)溫(wen)(wen)再冷卻后其彈性(xing)(xing)的(de)(de)(de)保持(chi)程(cheng)度;所有的(de)(de)(de)低(di)溫(wen)(wen)試驗一般(ban)指在(zai)-15℃條(tiao)件下其機械性(xing)(xing)能的(de)(de)(de)變化，都是(shi)檢(jian)測線纜材(cai)料在(zai)低(di)溫(wen)(wen)環(huan)境(jing)下是(shi)否變脆、易開(kai)裂(lie)或易拉斷等。

另外電纜的阻燃性能勝能很重要，礦物絕緣電纜型號，考查該項性能的試驗為不延燃試驗，即對按標準安裝的成品電纜用專門的火焰點燃一定的時間，待其火焰自行熄滅后檢查線纜被燒的情況，當然被燒掉的部分越少越好，說明其燃燒性差，阻燃性好，越安全。