LED燈相對與(yu)其(qi)他燈具有(you)(you)些特殊(shu)，必(bi)須通過特定(ding)的(de)(de)(de)(de)(de)(de)驅動電(dian)(dian)路才能正(zheng)常(chang)運行，而這(zhe)種(zhong)驅動電(dian)(dian)路的(de)(de)(de)(de)(de)(de)要求也(ye)很高(gao)(gao)，這(zhe)也(ye)是(shi)為什么(me)選擇高(gao)(gao)壓(ya)貼(tie)片(pian)電(dian)(dian)容(rong)(rong)主(zhu)(zhu)要原(yuan)因(yin)。高(gao)(gao)壓(ya)貼(tie)片(pian)電(dian)(dian)容(rong)(rong)以其(qi)高(gao)(gao)耐壓(ya)著稱，而且在(zai)穩定(ding)性方(fang)面(mian)非常(chang)出色，可以避免在(zai)連續工作(zuo)(zuo)下及溫(wen)度(du)升(sheng)高(gao)(gao)而使(shi)LED系統(tong)受...護(hu)(hu)眼(yan)(yan)儀(yi)(yi)的(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)—護(hu)(hu)眼(yan)(yan)儀(yi)(yi)的(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)及作(zuo)(zuo)用(yong)(yong)(yong)原(yuan)理來源：供(gong)需及二(er)手交易查(cha)看：695回復：0我(wo)(wo)們的(de)(de)(de)(de)(de)(de)眼(yan)(yan)睛在(zai)長時間的(de)(de)(de)(de)(de)(de)看書(shu)，用(yong)(yong)(yong)電(dian)(dian)腦，看手機之后，會變得非常(chang)疲勞。現在(zai)，社會上(shang)的(de)(de)(de)(de)(de)(de)近視(shi)遠(yuan)視(shi)眼(yan)(yan)越(yue)來越(yue)多，眼(yan)(yan)睛的(de)(de)(de)(de)(de)(de)按摩保(bao)護(hu)(hu)工程刻不容(rong)(rong)緩。護(hu)(hu)眼(yan)(yan)儀(yi)(yi)的(de)(de)(de)(de)(de)(de)出現給我(wo)(wo)們帶來了福音(yin)。在(zai)帶上(shang)護(hu)(hu)眼(yan)(yan)儀(yi)(yi)后，護(hu)(hu)眼(yan)(yan)儀(yi)(yi)的(de)(de)(de)(de)(de)(de)按摩作(zuo)(zuo)用(yong)(yong)(yong)會促進我(wo)(wo)們眼(yan)(yan)部的(de)(de)(de)(de)(de)(de)血液(ye)循環(huan)，對我(wo)(wo)們眼(yan)(yan)睛很有(you)(you)好(hao)處。護(hu)(hu)眼(yan)(yan)儀(yi)(yi)的(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)(yong)—適用(yong)(yong)(yong)功能根(gen)據眼(yan)(yan)部的(de)(de)(de)(de)(de)(de)高(gao)(gao)低輪(lun)廓與(yu)不同的(de)(de)(de)(de)(de)(de)穴位分布精(jing)心設(she)計而成，有(you)(you)26個手指頭狀(zhuang)按摩觸頭，并鑲入高(gao)(gao)效醫用(yong)(yong)(yong)稀土(tu)永磁合(he)金釹鐵(tie)硼，可產生比較(jiao)好(hao)磁通量。、目(mu)赤腫痛，視(shi)物不清、角(jiao)膜(mo)白斑，角(jiao)膜(mo)炎、面(mian)神經麻(ma)痹、眼(yan)(yan)肌麻(ma)痹、偏、通絡(luo)明(ming)目(mu)、屈光(guang)不正(zheng)、視(shi)神經萎縮、疏(shu)風清流、滋水(shui)明(ming)...溫(wen)度(du)與(yu)機械作(zuo)(zuo)用(yong)(yong)(yong)對高(gao)(gao)壓(ya)電(dian)(dian)容(rong)(rong)的(de)(de)(de)(de)(de)(de)影(ying)響來源：供(gong)需及二(er)手交易查(cha)看：400回復：0溫(wen)度(du)與(yu)機械作(zuo)(zuo)用(yong)(yong)(yong)多高(gao)(gao)壓(ya)電(dian)(dian)容(rong)(rong)有(you)(you)什么(me)影(ying)響呢，一起進入本文的(de)(de)(de)(de)(de)(de)主(zhu)(zhu)題，了解一下這(zhe)兩(liang)者對高(gao)(gao)壓(ya)電(dian)(dian)容(rong)(rong)帶來的(de)(de)(de)(de)(de)(de)影(ying)響。熔(rong)斷(duan)器主(zhu)(zhu)要由熔(rong)體、外殼和支座(zuo)3部分組(zu)成，其(qi)中熔(rong)體是(shi)控制熔(rong)斷(duan)特性的(de)(de)(de)(de)(de)(de)關(guan)鍵元件。湖(hu)南電(dian)(dian)力熔(rong)斷(duan)器

自鎖運(yun)行(xing)：自復(fu)(fu)(fu)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)在(zai)過流(liu)(liu)(liu)保(bao)(bao)(bao)(bao)護(hu)狀(zhuang)態，以(yi)極小(xiao)的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)鎖定(ding)在(zai)高阻(zu)狀(zhuang)態，只(zhi)有(you)(you)(you)切斷(duan)電(dian)(dian)(dian)(dian)源或(huo)過電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)消失后(hou)，才會恢復(fu)(fu)(fu)低(di)阻(zu)狀(zhuang)態。自動復(fu)(fu)(fu)位(wei)：自復(fu)(fu)(fu)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)在(zai)起到過流(liu)(liu)(liu)保(bao)(bao)(bao)(bao)護(hu)作(zuo)(zuo)用(yong)(yong)后(hou)（故障(zhang)排除）自行(xing)復(fu)(fu)(fu)位(wei)，無需(xu)進行(xing)拆換。耐大(da)(da)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)：自復(fu)(fu)(fu)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)有(you)(you)(you)極好的(de)耐大(da)(da)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)能(neng)力，有(you)(you)(you)的(de)規格可(ke)(ke)承(cheng)(cheng)受100A電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)沖擊(ji)。應(ying)用(yong)(yong)：PPTC的(de)應(ying)用(yong)(yong)范(fan)圍很廣，可(ke)(ke)以(yi)用(yong)(yong)在(zai)各種(zhong)(zhong)電(dian)(dian)(dian)(dian)子產品(pin)、通(tong)(tong)訊產品(pin)、電(dian)(dian)(dian)(dian)源供應(ying)器(qi)(qi)等。保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)相關說明編(bian)輯(ji)1.正常(chang)工作(zuo)(zuo)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)在(zai)25℃條(tiao)件下(xia)運(yun)行(xing)，保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)額(e)(e)定(ding)值通(tong)(tong)常(chang)要減少25%以(yi)避免有(you)(you)(you)害熔斷(duan)。大(da)(da)多數(shu)傳統的(de)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)其采(cai)用(yong)(yong)的(de)材料具有(you)(you)(you)較(jiao)低(di)的(de)熔化溫(wen)度(du)(du)。因此(ci)，該種(zhong)(zhong)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)對環(huan)境溫(wen)度(du)(du)的(de)變化比較(jiao)敏感。例如一個電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)額(e)(e)定(ding)值為(wei)(wei)10A的(de)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)通(tong)(tong)常(chang)不(bu)(bu)推(tui)薦在(zai)25℃環(huan)境溫(wen)度(du)(du)下(xia)在(zai)大(da)(da)于(yu)。汽(qi)車保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)2．電(dian)(dian)(dian)(dian)壓(ya)額(e)(e)定(ding)值保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)的(de)電(dian)(dian)(dian)(dian)壓(ya)額(e)(e)定(ding)值必須等于(yu)或(huo)大(da)(da)于(yu)有(you)(you)(you)效的(de)電(dian)(dian)(dian)(dian)路(lu)電(dian)(dian)(dian)(dian)壓(ya)。一般標準(zhun)電(dian)(dian)(dian)(dian)壓(ya)額(e)(e)定(ding)值系列(lie)(lie)(lie)為(wei)(wei)32V、125V、250V、600V。3．電(dian)(dian)(dian)(dian)阻(zu)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)的(de)電(dian)(dian)(dian)(dian)阻(zu)在(zai)整個電(dian)(dian)(dian)(dian)路(lu)中并不(bu)(bu)重要。由于(yu)安培數(shu)小(xiao)于(yu)1的(de)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)電(dian)(dian)(dian)(dian)阻(zu)只(zhi)有(you)(you)(you)幾個歐姆，所(suo)以(yi)在(zai)低(di)壓(ya)電(dian)(dian)(dian)(dian)路(lu)中采(cai)用(yong)(yong)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)時(shi)應(ying)考慮這(zhe)個問題。大(da)(da)部分(fen)的(de)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)是用(yong)(yong)溫(wen)度(du)(du)系數(shu)為(wei)(wei)正的(de)材料制造的(de)，因此(ci)，就有(you)(you)(you)冷電(dian)(dian)(dian)(dian)阻(zu)和熱電(dian)(dian)(dian)(dian)阻(zu)之分(fen)。4．環(huan)境溫(wen)度(du)(du)保(bao)(bao)(bao)(bao)險(xian)(xian)絲(si)(si)的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)承(cheng)(cheng)載能(neng)力。其實驗是在(zai)25℃環(huan)境溫(wen)度(du)(du)條(tiao)件下(xia)進行(xing)的(de)。這(zhe)種(zhong)(zhong)實驗受環(huan)境溫(wen)度(du)(du)變化的(de)影響。湖南電(dian)(dian)(dian)(dian)力熔斷(duan)器(qi)(qi)常(chang)用(yong)(yong)的(de)熔斷(duan)器(qi)(qi)有(you)(you)(you)管式熔斷(duan)器(qi)(qi)R1系列(lie)(lie)(lie)、螺旋式熔斷(duan)器(qi)(qi)RLl系列(lie)(lie)(lie)、填料封(feng)閉式熔斷(duan)器(qi)(qi)RT0系列(lie)(lie)(lie)及快速熔斷(duan)器(qi)(qi)RSO。

戶(hu)內式高壓(ya)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)戶(hu)內高壓(ya)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)全部是限(xian)流型熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)，其主(zhu)要(yao)(yao)(yao)部分為(wei)熔(rong)(rong)(rong)(rong)管(guan)和(he)(he)(he)(he)熔(rong)(rong)(rong)(rong)體，熔(rong)(rong)(rong)(rong)管(guan)內配(pei)(pei)置(zhi)有瓷(ci)柱(zhu)，瓷(ci)柱(zhu)上等(deng)(deng)間(jian)距繞有熔(rong)(rong)(rong)(rong)體，熔(rong)(rong)(rong)(rong)管(guan)的(de)(de)(de)(de)(de)(de)兩端配(pei)(pei)置(zhi)有壓(ya)帽，其間(jian)填充有石英(ying)(ying)砂以(yi)(yi)RN1型為(wei)典型**的(de)(de)(de)(de)(de)(de)設計序號為(wei)奇數(shu)系(xi)列的(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)，用(yong)于(yu)3～35kV的(de)(de)(de)(de)(de)(de)電(dian)(dian)力線路(lu)和(he)(he)(he)(he)電(dian)(dian)氣(qi)設備的(de)(de)(de)(de)(de)(de)過載(zai)和(he)(he)(he)(he)短路(lu)保(bao)護；以(yi)(yi)RN2型為(wei)**的(de)(de)(de)(de)(de)(de)設計序號為(wei)偶(ou)數(shu)系(xi)列的(de)(de)(de)(de)(de)(de)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)，電(dian)(dian)壓(ya)互感(gan)器(qi)(qi)(qi)(qi)專門用(yong)來保(bao)護電(dian)(dian)壓(ya)互感(gan)器(qi)(qi)(qi)(qi)從3到35kV，適用(yong)于(yu)高壓(ya)電(dian)(dian)壓(ya)互感(gan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)過載(zai)和(he)(he)(he)(he)短路(lu)保(bao)護。戶(hu)外式高壓(ya)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)1.戶(hu)外跌落式高壓(ya)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)跌落式熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)主(zhu)要(yao)(yao)(yao)由(you)熔(rong)(rong)(rong)(rong)絲具、熔(rong)(rong)(rong)(rong)絲管(guan)和(he)(he)(he)(he)熔(rong)(rong)(rong)(rong)絲元件三部分構成。本(ben)實(shi)用(yong)新型具有經(jing)濟實(shi)用(yong)、操(cao)作(zuo)方(fang)便、適應戶(hu)外環(huan)境強的(de)(de)(de)(de)(de)(de)優點，它被廣(guang)泛應用(yong)于(yu)10kV架(jia)空配(pei)(pei)電(dian)(dian)線路(lu)和(he)(he)(he)(he)用(yong)戶(hu)進線的(de)(de)(de)(de)(de)(de)分支(zhi)線，與35kva以(yi)(yi)下容量的(de)(de)(de)(de)(de)(de)配(pei)(pei)電(dian)(dian)變壓(ya)器(qi)(qi)(qi)(qi)，一(yi)次側和(he)(he)(he)(he)電(dian)(dian)力電(dian)(dian)容器(qi)(qi)(qi)(qi)等(deng)(deng)設備的(de)(de)(de)(de)(de)(de)過載(zai)或短路(lu)保(bao)護功能，并對系(xi)統、設備投資和(he)(he)(he)(he)運行(xing)。2.戶(hu)外支(zhi)柱(zhu)式高壓(ya)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)由(you)瓷(ci)套、熔(rong)(rong)(rong)(rong)管(guan)及(ji)棒形支(zhi)持絕(jue)緣子和(he)(he)(he)(he)接線端帽等(deng)(deng)組成。RXW－35型限(xian)流式熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)主(zhu)要(yao)(yao)(yao)用(yong)于(yu)保(bao)護電(dian)(dian)壓(ya)互感(gan)器(qi)(qi)(qi)(qi)熔(rong)(rong)(rong)(rong)管(guan)裝(zhuang)(zhuang)于(yu)瓷(ci)套中(zhong)，熔(rong)(rong)(rong)(rong)化的(de)(de)(de)(de)(de)(de)金屬被放置(zhi)在一(yi)個(ge)裝(zhuang)(zhuang)滿石英(ying)(ying)砂的(de)(de)(de)(de)(de)(de)管(guan)子里。熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)滅弧原理與RN系(xi)列限(xian)流式高壓(ya)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)滅弧原理基本(ben)相同，均有限(xian)流作(zuo)用(yong)。高壓(ya)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)使用(yong)要(yao)(yao)(yao)點1.高壓(ya)熔(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)安裝(zhuang)(zhuang)（1）安裝(zhuang)(zhuang)前(qian)：檢查外觀是否完整(zheng)良好。

使MAX668的(de)(de)(de)(de)輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)一直高于MAX810的(de)(de)(de)(de)復位門檻電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)。假如(ru)R、C使Q1的(de)(de)(de)(de)導(dao)(dao)通(tong)時(shi)(shi)間(jian)延長(chang)，同(tong)時(shi)(shi)也(ye)延長(chang)了關斷時(shi)(shi)間(jian)。因(yin)(yin)此(ci)需要在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)阻上并聯一肖特(te)基二極(ji)(ji)管(guan)，以加(jia)速(su)當負(fu)載過載時(shi)(shi)關閉Q1的(de)(de)(de)(de)進(jin)程。為(wei)了獲得增強型通(tong)道及較(jiao)低的(de)(de)(de)(de)導(dao)(dao)通(tong)電(dian)(dian)(dian)(dian)(dian)阻，上述電(dian)(dian)(dian)(dian)(dian)路(lu)均需要采用(yong)邏輯電(dian)(dian)(dian)(dian)(dian)平(ping)控制的(de)(de)(de)(de)P溝道MOSFET，如(ru)果Q1的(de)(de)(de)(de)導(dao)(dao)通(tong)電(dian)(dian)(dian)(dian)(dian)阻值較(jiao)大且在(zai)(zai)其(qi)兩端(duan)產(chan)生(sheng)較(jiao)大的(de)(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)降(jiang)（特(te)別是(shi)低輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)應用(yong)場(chang)合(he)或負(fu)載離電(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)(de)(de)距離較(jiao)遠時(shi)(shi)），則(ze)應該(gai)從Q1漏(lou)極(ji)(ji)端(duan)反(fan)(fan)(fan)饋(kui)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)調節(jie)輸(shu)出。設計(ji)電(dian)(dian)(dian)(dian)(dian)路(lu)時(shi)(shi)，必(bi)須**小(xiao)化寄生(sheng)參數同(tong)時(shi)(shi)仔細考慮(lv)電(dian)(dian)(dian)(dian)(dian)路(lu)布局(ju)。利用(yong)一個SOT23封(feng)裝的(de)(de)(de)(de)低電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)模擬開關（MAX4544）可實現(xian)上述遠端(duan)調節(jie)，該(gai)開關受控于MAX810L的(de)(de)(de)(de)輸(shu)出，如(ru)圖4所示。根據(ju)MAX4544產(chan)品參數，其(qi)**低工作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)為(wei)。由(you)于輸(shu)入電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)為(wei)，而肖特(te)基的(de)(de)(de)(de)正向管(guan)壓(ya)(ya)(ya)(ya)(ya)降(jiang)為(wei)，因(yin)(yin)此(ci)即使該(gai)升壓(ya)(ya)(ya)(ya)(ya)變換處于關閉模式，MAX4544（及MAX810）也(ye)處于工作狀態(tai)。此(ci)時(shi)(shi)，MAX810輸(shu)出高電(dian)(dian)(dian)(dian)(dian)平(ping)，MAX4544的(de)(de)(de)(de)公共(gong)端(duan)COM與其(qi)常開端(duan)NO（Q1的(de)(de)(de)(de)源(yuan)極(ji)(ji)）相(xiang)連。當MAX668使能時(shi)(shi)，與MAX4544公共(gong)端(duan)相(xiang)連的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻網絡為(wei)MAX668提供(gong)反(fan)(fan)(fan)饋(kui)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)。由(you)于5V電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)時(shi)(shi)MAX4544的(de)(de)(de)(de)導(dao)(dao)通(tong)電(dian)(dian)(dian)(dian)(dian)阻**大可達60Ω。因(yin)(yin)此(ci)為(wei)了得到**小(xiao)輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)誤差，反(fan)(fan)(fan)饋(kui)電(dian)(dian)(dian)(dian)(dian)阻的(de)(de)(de)(de)取值應該(gai)很(hen)大。由(you)于3V工作電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)時(shi)(shi)，MAX4544的(de)(de)(de)(de)導(dao)(dao)通(tong)電(dian)(dian)(dian)(dian)(dian)阻*為(wei)120Ω，因(yin)(yin)此(ci)開關MAX4544引入的(de)(de)(de)(de)誤差電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)很(hen)小(xiao)。熔(rong)斷器的(de)(de)(de)(de)熔(rong)體(ti)(ti)要按(an)要求(qiu)使用(yong)相(xiang)配(pei)合(he)的(de)(de)(de)(de)熔(rong)體(ti)(ti)，不允許隨(sui)意加(jia)大熔(rong)體(ti)(ti)或用(yong)其(qi)他(ta)導(dao)(dao)體(ti)(ti)代替熔(rong)體(ti)(ti)。

T是(shi)(shi)(shi)電(dian)(dian)流(liu)流(liu)過(guo)導(dao)體的(de)(de)(de)(de)時(shi)(shi)間；依此公式(shi)我們不(bu)難(nan)看出保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)的(de)(de)(de)(de)簡單(dan)的(de)(de)(de)(de)工(gong)作(zuo)原(yuan)理(li)了(le)。一種保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)當制作(zuo)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)的(de)(de)(de)(de)材料及其形狀確(que)定了(le)，其電(dian)(dian)阻(zu)R就相(xiang)(xiang)對(dui)確(que)定了(le)（若不(bu)考(kao)慮(lv)它(ta)的(de)(de)(de)(de)電(dian)(dian)阻(zu)溫度(du)(du)(du)系數）。當電(dian)(dian)流(liu)流(liu)過(guo)它(ta)時(shi)(shi)，它(ta)就會發(fa)熱(re)(re)(re)，隨著時(shi)(shi)間的(de)(de)(de)(de)增(zeng)加其發(fa)熱(re)(re)(re)量(liang)也在(zai)增(zeng)加。電(dian)(dian)流(liu)與(yu)電(dian)(dian)阻(zu)的(de)(de)(de)(de)大小確(que)定了(le)產(chan)(chan)生熱(re)(re)(re)量(liang)的(de)(de)(de)(de)速度(du)(du)(du)，保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)的(de)(de)(de)(de)構造與(yu)其安(an)(an)裝的(de)(de)(de)(de)狀況確(que)定了(le)熱(re)(re)(re)量(liang)耗(hao)散(san)(san)的(de)(de)(de)(de)速度(du)(du)(du)，若產(chan)(chan)生熱(re)(re)(re)量(liang)的(de)(de)(de)(de)速度(du)(du)(du)小于(yu)熱(re)(re)(re)量(liang)耗(hao)散(san)(san)的(de)(de)(de)(de)速度(du)(du)(du)時(shi)(shi)，保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)是(shi)(shi)(shi)不(bu)會熔(rong)(rong)斷(duan)的(de)(de)(de)(de)。若產(chan)(chan)生熱(re)(re)(re)量(liang)的(de)(de)(de)(de)速度(du)(du)(du)等于(yu)熱(re)(re)(re)量(liang)耗(hao)散(san)(san)的(de)(de)(de)(de)速度(du)(du)(du)時(shi)(shi)，在(zai)相(xiang)(xiang)當長的(de)(de)(de)(de)時(shi)(shi)間內(nei)它(ta)也不(bu)會熔(rong)(rong)斷(duan)。若產(chan)(chan)生熱(re)(re)(re)量(liang)的(de)(de)(de)(de)速度(du)(du)(du)大于(yu)熱(re)(re)(re)量(liang)耗(hao)散(san)(san)的(de)(de)(de)(de)速度(du)(du)(du)時(shi)(shi)，那么產(chan)(chan)生的(de)(de)(de)(de)熱(re)(re)(re)量(liang)就會越(yue)來(lai)越(yue)多。又因為它(ta)有一定比熱(re)(re)(re)及質(zhi)量(liang)，其熱(re)(re)(re)量(liang)的(de)(de)(de)(de)增(zeng)加就表現在(zai)溫度(du)(du)(du)的(de)(de)(de)(de)升(sheng)高(gao)上，當溫度(du)(du)(du)升(sheng)高(gao)到保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)的(de)(de)(de)(de)熔(rong)(rong)點以上時(shi)(shi)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)就發(fa)生了(le)熔(rong)(rong)斷(duan)。這就是(shi)(shi)(shi)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)的(de)(de)(de)(de)工(gong)作(zuo)原(yuan)理(li)。我們從(cong)這個(ge)原(yuan)理(li)中(zhong)應該知道，您(nin)在(zai)設(she)計制造保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)時(shi)(shi)必須認(ren)真地研究您(nin)所(suo)選材料的(de)(de)(de)(de)物(wu)理(li)特性，并確(que)保(bao)(bao)(bao)它(ta)們有一致幾何尺(chi)寸(cun)。因為這些因素對(dui)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)能否正常工(gong)作(zuo)起了(le)至(zhi)關重要的(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)。同樣，您(nin)在(zai)使用(yong)(yong)(yong)它(ta)的(de)(de)(de)(de)時(shi)(shi)候(hou)，一定要正確(que)地安(an)(an)裝它(ta)。保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)構成編輯保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)基本組成一般保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)由三個(ge)部分組成：一是(shi)(shi)(shi)熔(rong)(rong)體部分，它(ta)是(shi)(shi)(shi)保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)的(de)(de)(de)(de)**，熔(rong)(rong)斷(duan)時(shi)(shi)起到切斷(duan)電(dian)(dian)流(liu)的(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)。同一類、同一規(gui)格保(bao)(bao)(bao)險(xian)(xian)(xian)(xian)(xian)絲(si)(si)(si)的(de)(de)(de)(de)熔(rong)(rong)體。低壓配(pei)電(dian)(dian)系統(tong)中(zhong)熔(rong)(rong)斷(duan)器是(shi)(shi)(shi)起安(an)(an)全保(bao)(bao)(bao)護(hu)(hu)作(zuo)用(yong)(yong)(yong)的(de)(de)(de)(de)一種電(dian)(dian)器，熔(rong)(rong)斷(duan)器廣泛應用(yong)(yong)(yong)于(yu)電(dian)(dian)網保(bao)(bao)(bao)護(hu)(hu)和用(yong)(yong)(yong)電(dian)(dian)設(she)備保(bao)(bao)(bao)護(hu)(hu)。湖南(nan)電(dian)(dian)力熔(rong)(rong)斷(duan)器

通常選用鉛錫合金熔(rong)(rong)體的RQA系列(lie)熔(rong)(rong)斷器。湖南電力熔(rong)(rong)斷器

收藏(zang)查(cha)看(kan)我的(de)(de)(de)收藏(zang)0有(you)用(yong)+1已投票0限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)編輯(ji)(ji)鎖定(ding)討(tao)論本詞條(tiao)由“科普中(zhong)國”科學(xue)百科詞條(tiao)編寫與(yu)應(ying)用(yong)工作項目審(shen)核。限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)（current-limitingfuse）是(shi)具有(you)限(xian)(xian)制(zhi)短路(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)能(neng)力(li)并能(neng)迅速切斷(duan)(duan)(duan)(duan)(duan)(duan)故(gu)障電(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)封閉(bi)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)。其結(jie)構(gou)(gou)(gou)特(te)點(dian)是(shi)將熔(rong)(rong)(rong)(rong)(rong)(rong)體置于充(chong)滿(man)石英砂的(de)(de)(de)封閉(bi)瓷(ci)管中(zhong)制(zhi)成。也有(you)采(cai)用(yong)串(chuan)聯(lian)附加限(xian)(xian)流(liu)(liu)電(dian)(dian)(dian)(dian)阻，以限(xian)(xian)制(zhi)短路(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)并降低(di)電(dian)(dian)(dian)(dian)流(liu)(liu)切斷(duan)(duan)(duan)(duan)(duan)(duan)時(shi)(shi)引起的(de)(de)(de)過(guo)電(dian)(dian)(dian)(dian)壓(ya)。[1]中(zhong)文(wen)名限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)外文(wen)名current-limitingfuse作用(yong)限(xian)(xian)制(zhi)短路(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)能(neng)力(li)學(xue)科電(dian)(dian)(dian)(dian)力(li)工程結(jie)構(gou)(gou)(gou)組(zu)成熔(rong)(rong)(rong)(rong)(rong)(rong)絲管、接觸導電(dian)(dian)(dian)(dian)系(xi)統等舉(ju)例RN1型熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)目錄1高壓(ya)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)2限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)結(jie)構(gou)(gou)(gou)3限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)特(te)點(dian)4設計要點(dian)限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)高壓(ya)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)編輯(ji)(ji)高壓(ya)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)是(shi)在電(dian)(dian)(dian)(dian)網中(zhong)人為設置的(de)(de)(de)一個**薄弱的(de)(de)(de)元(yuan)件，當過(guo)電(dian)(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)過(guo)時(shi)(shi)，元(yuan)件本身發熱熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)，借滅弧介(jie)質的(de)(de)(de)作用(yong)使(shi)電(dian)(dian)(dian)(dian)路(lu)(lu)開斷(duan)(duan)(duan)(duan)(duan)(duan)，達到(dao)保護電(dian)(dian)(dian)(dian)力(li)線(xian)路(lu)(lu)和電(dian)(dian)(dian)(dian)氣設備(bei)的(de)(de)(de)目的(de)(de)(de)。熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)在電(dian)(dian)(dian)(dian)壓(ya)低(di)于35千伏的(de)(de)(de)小容量電(dian)(dian)(dian)(dian)網中(zhong)被采(cai)用(yong)。熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)由熔(rong)(rong)(rong)(rong)(rong)(rong)絲管、接觸導電(dian)(dian)(dian)(dian)系(xi)統、支(zhi)柱絕緣子、底板（或安裝(zhuang)板）四部分組(zu)成。它(ta)可分為限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)與(yu)跌落式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)兩類。限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)結(jie)構(gou)(gou)(gou)編輯(ji)(ji)如下圖所示，限(xian)(xian)流(liu)(liu)式(shi)(shi)(shi)(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)的(de)(de)(de)熔(rong)(rong)(rong)(rong)(rong)(rong)絲裝(zhuang)在充(chong)滿(man)石英砂的(de)(de)(de)瓷(ci)管中(zhong)，當過(guo)電(dian)(dian)(dian)(dian)流(liu)(liu)使(shi)熔(rong)(rong)(rong)(rong)(rong)(rong)絲熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)時(shi)(shi)，在瓷(ci)管內產生電(dian)(dian)(dian)(dian)弧，由于石英砂對電(dian)(dian)(dian)(dian)弧的(de)(de)(de)冷卻和去游離作用(yong)。湖(hu)南電(dian)(dian)(dian)(dian)力(li)熔(rong)(rong)(rong)(rong)(rong)(rong)斷(duan)(duan)(duan)(duan)(duan)(duan)器(qi)(qi)

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