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電纜一般檢測重點都檢測什么？
時間: 2020-05-08 09:53
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電纜檢查重點
電纜一般檢測重點都檢測什么？
電纜檢查重點.
1、導線直流電阻的丈量：
對電(dian)線電(dian)纜(lan)而言，導(dao)體部分(fen)是其最重要的(de)組成部分(fen)。電(dian)線電(dian)纜(lan)的(de)導(dao)電(dian)線芯首(shou)要傳輸電(dian)能(neng)或電(dian)信(xin)號。
導線(xian)的電(dian)阻(zu)是其電(dian)氣性(xing)能的首要(yao)目標，現在規(gui)(gui)范規(gui)(gui)定：檢測線(xian)芯的直流電(dian)阻(zu)或電(dian)阻(zu)率是否超(chao)過(guo)規(gui)(gui)范中的規(gui)(gui)定的值。
此項檢測的首要意圖是發現生(sheng)產工藝中的某些缺點：如導線(xian)開裂或其中部分單線(xian)開裂；導線(xian)截面不符合規(gui)范；產品的長(chang)度不正確等。
此外，對電力電纜(lan)而言，此項(xiang)檢(jian)測不僅(jin)能(neng)(neng)夠(gou)檢(jian)測出導體的情(qing)況，還能(neng)(neng)夠(gou)檢(jian)測出導體對電線電纜(lan)產品運(yun)轉中允許的載流量是否有影(ying)響(xiang)。
2、絕緣電阻的測試：
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絕緣電(dian)(dian)阻式反(fan)映(ying)電(dian)(dian)線電(dian)(dian)纜產(chan)品絕緣特性的重要目標(biao)，它與(yu)該產(chan)品的耐電(dian)(dian)強度，介質損耗，以及絕緣材料在工作(zuo)狀態下的逐步(bu)劣化等均有密切(qie)的聯(lian)系(xi)。
測定絕(jue)緣電(dian)阻能夠發現工(gong)藝中的缺點：如絕(jue)緣枯燥不透或護套損(sun)傷受潮；絕(jue)緣受到污染和有導電(dian)雜質(zhi)混入(ru)；各種原因引起的絕(jue)緣層開裂等。
關于(yu)(yu)通訊電(dian)(dian)纜而(er)言，線間(jian)絕緣(yuan)(yuan)電(dian)(dian)阻(zu)過低還會增大回(hui)(hui)路衰減、回(hui)(hui)路間(jian)的(de)串音及在導電(dian)(dian)線芯上進行遠距離供電(dian)(dian)走漏等，因而(er)都(dou)要求絕緣(yuan)(yuan)電(dian)(dian)阻(zu)應高于(yu)(yu)規定值。在電(dian)(dian)線、電(dian)(dian)纜的(de)運轉中，常(chang)常(chang)要檢測(ce)絕緣(yuan)(yuan)電(dian)(dian)阻(zu)和(he)走漏電(dian)(dian)流，以此作為(wei)是(shi)否能(neng)夠繼(ji)續(xu)安全運轉的(de)首要依據。
3、電容及損(sun)耗(hao)因數的(de)丈量：
電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)加上溝通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，就(jiu)有電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)過，當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)幅值(zhi)和(he)頻率一定時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)大(da)小是(shi)(shi)正比于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)（Cx）。關于超高壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)，這種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)或許達到與額定電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)能夠相比的(de)數值(zhi)，成為約束電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)容(rong)量和(he)傳輸距離的(de)重要因(yin)素。因(yin)而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)也是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)首要的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)能參數之一。
在溝(gou)通(tong)電(dian)場中，電(dian)纜中的(de)絕緣(yuan)(yuan)體(ti)(ti)由于走漏電(dian)流和各(ge)種極化存在，會(hui)形成介質(zhi)損耗(hao)，以介質(zhi)損耗(hao)因(yin)(yin)數或損耗(hao)角正切值（TANδ）來(lai)表(biao)明，它不光浪費電(dian)能，而且會(hui)使介質(zhi)（絕緣(yuan)(yuan)體(ti)(ti)）發熱，加快(kuai)絕緣(yuan)(yuan)老化，因(yin)(yin)而TANδ也是電(dian)纜首要參數之(zhi)一。
通(tong)過電(dian)容(rong)和損(sun)(sun)耗(hao)因數(shu)的丈(zhang)量能夠發(fa)現絕緣(yuan)受(shou)潮，絕緣(yuan)層和屏蔽(bi)層脫(tuo)落等各種絕緣(yuan)劣化現象，因而不(bu)管在(zai)電(dian)纜(lan)制作(zuo)或電(dian)纜(lan)運轉(zhuan)中(zhong)都(dou)有進行電(dian)容(rong)和損(sun)(sun)耗(hao)角正切值的丈(zhang)量。對高壓(ya)電(dian)纜(lan)，電(dian)容(rong)及損(sun)(sun)耗(hao)因數(shu)的丈(zhang)量都(dou)在(zai)其(qi)工(gong)作(zuo)條件(jian)下，即工(gong)頻高壓(ya)下進行。
電纜一般檢測重點都檢測什么？
電纜檢查重點.
西安光大百納電子科技有限公司
電纜檢查重點.
1、導線直流電阻的丈量：
對電(dian)線電(dian)纜(lan)而言，導(dao)體部分(fen)是其最重要的(de)組成部分(fen)。電(dian)線電(dian)纜(lan)的(de)導(dao)電(dian)線芯首(shou)要傳輸電(dian)能(neng)或電(dian)信(xin)號。
導線(xian)的電(dian)阻(zu)是其電(dian)氣性(xing)能的首要(yao)目標，現在規(gui)(gui)范規(gui)(gui)定：檢測線(xian)芯的直流電(dian)阻(zu)或電(dian)阻(zu)率是否超(chao)過(guo)規(gui)(gui)范中的規(gui)(gui)定的值。
此項檢測的首要意圖是發現生(sheng)產工藝中的某些缺點：如導線(xian)開裂或其中部分單線(xian)開裂；導線(xian)截面不符合規(gui)范；產品的長(chang)度不正確等。
此外，對電力電纜(lan)而言，此項(xiang)檢(jian)測不僅(jin)能(neng)(neng)夠(gou)檢(jian)測出導體的情(qing)況，還能(neng)(neng)夠(gou)檢(jian)測出導體對電線電纜(lan)產品運(yun)轉中允許的載流量是否有影(ying)響(xiang)。
?
絕緣電(dian)(dian)阻式反(fan)映(ying)電(dian)(dian)線電(dian)(dian)纜產(chan)品絕緣特性的重要目標(biao)，它與(yu)該產(chan)品的耐電(dian)(dian)強度，介質損耗，以及絕緣材料在工作(zuo)狀態下的逐步(bu)劣化等均有密切(qie)的聯(lian)系(xi)。
測定絕(jue)緣電(dian)阻能夠發現工(gong)藝中的缺點：如絕(jue)緣枯燥不透或護套損(sun)傷受潮；絕(jue)緣受到污染和有導電(dian)雜質(zhi)混入(ru)；各種原因引起的絕(jue)緣層開裂等。
關于(yu)(yu)通訊電(dian)(dian)纜而(er)言，線間(jian)絕緣(yuan)(yuan)電(dian)(dian)阻(zu)過低還會增大回(hui)(hui)路衰減、回(hui)(hui)路間(jian)的(de)串音及在導電(dian)(dian)線芯上進行遠距離供電(dian)(dian)走漏等，因而(er)都(dou)要求絕緣(yuan)(yuan)電(dian)(dian)阻(zu)應高于(yu)(yu)規定值。在電(dian)(dian)線、電(dian)(dian)纜的(de)運轉中，常(chang)常(chang)要檢測(ce)絕緣(yuan)(yuan)電(dian)(dian)阻(zu)和(he)走漏電(dian)(dian)流，以此作為(wei)是(shi)否能(neng)夠繼(ji)續(xu)安全運轉的(de)首要依據。
電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)加上溝通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，就(jiu)有電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)過，當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)幅值(zhi)和(he)頻率一定時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)大(da)小是(shi)(shi)正比于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)（Cx）。關于超高壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)，這種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)或許達到與額定電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)能夠相比的(de)數值(zhi)，成為約束電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)容(rong)量和(he)傳輸距離的(de)重要因(yin)素。因(yin)而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)也是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)首要的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)性(xing)能參數之一。
在溝(gou)通(tong)電(dian)場中，電(dian)纜中的(de)絕緣(yuan)(yuan)體(ti)(ti)由于走漏電(dian)流和各(ge)種極化存在，會(hui)形成介質(zhi)損耗(hao)，以介質(zhi)損耗(hao)因(yin)(yin)數或損耗(hao)角正切值（TANδ）來(lai)表(biao)明，它不光浪費電(dian)能，而且會(hui)使介質(zhi)（絕緣(yuan)(yuan)體(ti)(ti)）發熱，加快(kuai)絕緣(yuan)(yuan)老化，因(yin)(yin)而TANδ也是電(dian)纜首要參數之(zhi)一。
通(tong)過電(dian)容(rong)和損(sun)(sun)耗(hao)因數(shu)的丈(zhang)量能夠發(fa)現絕緣(yuan)受(shou)潮，絕緣(yuan)層和屏蔽(bi)層脫(tuo)落等各種絕緣(yuan)劣化現象，因而不(bu)管在(zai)電(dian)纜(lan)制作(zuo)或電(dian)纜(lan)運轉(zhuan)中(zhong)都(dou)有進行電(dian)容(rong)和損(sun)(sun)耗(hao)角正切值的丈(zhang)量。對高壓(ya)電(dian)纜(lan)，電(dian)容(rong)及損(sun)(sun)耗(hao)因數(shu)的丈(zhang)量都(dou)在(zai)其(qi)工(gong)作(zuo)條件(jian)下，即工(gong)頻高壓(ya)下進行。
電纜一般檢測重點都檢測什么？
電纜檢查重點.
西安光大百納電子科技有限公司
