對福建電線電纜進行檢(jian)(jian)測(ce)的(de)目的(de)時什么(me)？1.電(dian)(dian)(dian)(dian)(dian)性能檢(jian)(jian)測(ce)：主要(yao)有導(dao)(dao)體(ti)直(zhi)流電(dian)(dian)(dian)(dian)(dian)阻、絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)(dian)阻、成品電(dian)(dian)(dian)(dian)(dian)壓試驗及絕(jue)緣(yuan)線(xian)芯間(jian)電(dian)(dian)(dian)(dian)(dian)壓試驗，每(mei)項都很重(zhong)(zhong)(zhong)要(yao)，導(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻直(zhi)接反映了電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)電(dian)(dian)(dian)(dian)(dian)傳輸性能，直(zhi)接影(ying)響電(dian)(dian)(dian)(dian)(dian)纜(lan)在(zai)(zai)通電(dian)(dian)(dian)(dian)(dian)運行中(zhong)(zhong)的(de)溫度、壽命、電(dian)(dian)(dian)(dian)(dian)壓降(jiang)、以及運行安全(quan)，它主要(yao)考查(cha)導(dao)(dao)體(ti)的(de)材質和截面積，若導(dao)(dao)體(ti)的(de)材質不(bu)好或截面積嚴(yan)重(zhong)(zhong)(zhong)不(bu)足(zu)，就會造(zao)成導(dao)(dao)體(ti)直(zhi)流電(dian)(dian)(dian)(dian)(dian)阻嚴(yan)重(zhong)(zhong)(zhong)超標(biao)，這種電(dian)(dian)(dian)(dian)(dian)纜(lan)鋪(pu)設在(zai)(zai)線(xian)路中(zhong)(zhong)就會增(zeng)加電(dian)(dian)(dian)(dian)(dian)流在(zai)(zai)線(xian)路上通過(guo)時的(de)損耗(hao)，引起(qi)電(dian)(dian)(dian)(dian)(dian)纜(lan)導(dao)(dao)體(ti)本身發熱，引起(qi)包覆導(dao)(dao)體(ti)的(de)絕(jue)緣(yuan)老化(hua)開裂，造(zao)成供電(dian)(dian)(dian)(dian)(dian)線(xian)路漏電(dian)(dian)(dian)(dian)(dian)、短路，甚至造(zao)成火(huo)災，危及人身、財(cai)產的(de)安全(quan)。標(biao)準(zhun)對不(bu)同規格(ge)電(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)導(dao)(dao)體(ti)直(zhi)流電(dian)(dian)(dian)(dian)(dian)阻值均有嚴(yan)格(ge)的(de)規定(ding)，不(bu)得大于標(biao)準(zhun)規定(ding)的(de)值。

   2.機械性能(neng)檢測：主要(yao)是(shi)考查絕(jue)緣(yuan)和(he)(he)護(hu)(hu)套(tao)塑料材(cai)料的(de)(de)抗(kang)張(zhang)(zhang)強(qiang)度(du)、斷(duan)(duan)裂(lie)伸(shen)(shen)長(chang)(chang)率(lv)，包括(kuo)老(lao)化前(qian)后，還(huan)有對于成品軟電(dian)(dian)纜(lan)(lan)進(jin)行(xing)的(de)(de)曲(qu)(qu)撓試(shi)驗(yan)、彎曲(qu)(qu)試(shi)驗(yan)、荷重斷(duan)(duan)芯試(shi)驗(yan)、絕(jue)緣(yuan)線(xian)芯撕裂(lie)試(shi)驗(yan)、靜態曲(qu)(qu)撓試(shi)驗(yan)等。廣(guang)東電(dian)(dian)纜(lan)(lan)廠家提醒老(lao)化前(qian)、后抗(kang)張(zhang)(zhang)強(qiang)度(du)、老(lao)化前(qian)后斷(duan)(duan)裂(lie)伸(shen)(shen)長(chang)(chang)率(lv)是(shi)電(dian)(dian)纜(lan)(lan)絕(jue)緣(yuan)和(he)(he)護(hu)(hu)套(tao)材(cai)料較重要(yao)較基本的(de)(de)指標，要(yao)求用做電(dian)(dian)纜(lan)(lan)絕(jue)緣(yuan)和(he)(he)護(hu)(hu)套(tao)的(de)(de)材(cai)料，既要(yao)有足夠的(de)(de)拉伸(shen)(shen)強(qiang)度(du)不(bu)容易拉斷(duan)(duan)，又要(yao)有一定(ding)的(de)(de)柔韌性，老(lao)化是(shi)指在高溫條(tiao)件下，絕(jue)緣(yuan)和(he)(he)護(hu)(hu)套(tao)材(cai)料保持其原有性能(neng)的(de)(de)能(neng)力，老(lao)化不(bu)應嚴(yan)重影響材(cai)料的(de)(de)抗(kang)張(zhang)(zhang)強(qiang)度(du)和(he)(he)伸(shen)(shen)長(chang)(chang)率(lv)，這些(xie)都將直接影響電(dian)(dian)纜(lan)(lan)的(de)(de)使用壽命，若抗(kang)張(zhang)(zhang)強(qiang)度(du)和(he)(he)斷(duan)(duan)裂(lie)伸(shen)(shen)長(chang)(chang)率(lv)不(bu)合格，進(jin)行(xing)電(dian)(dian)纜(lan)(lan)的(de)(de)施工安裝時就較易出現護(hu)(hu)套(tao)或絕(jue)緣(yuan)體斷(duan)(duan)裂(lie)，或在光、熱環境下使用的(de)(de)電(dian)(dian)纜(lan)(lan)其護(hu)(hu)套(tao)和(he)(he)絕(jue)緣(yuan)容易變脆，斷(duan)(duan)裂(lie)，致使帶電(dian)(dian)導(dao)體裸露，發生觸(chu)電(dian)(dian)危險(xian)。

   對福建電線電纜進(jin)行(xing)檢測的(de)(de)目(mu)的(de)(de)時(shi)什么(me)？另外(wai)(wai)軟(ruan)(ruan)電纜(lan)由于不是(shi)(shi)固(gu)定敷設(she)，使(shi)用中存在反復拖拉(la)、彎曲(qu)等情況，所(suo)以(yi)(yi)對于軟(ruan)(ruan)電纜(lan)標準(zhun)又另外(wai)(wai)規定了在其(qi)成(cheng)品電纜(lan)上加做動態(tai)曲(qu)撓試(shi)驗(yan)(yan)(yan)、彎曲(qu)試(shi)驗(yan)(yan)(yan)、荷重(zhong)斷芯(xin)試(shi)驗(yan)(yan)(yan)、絕(jue)(jue)緣線(xian)(xian)(xian)芯(xin)撕裂試(shi)驗(yan)(yan)(yan)、靜態(tai)曲(qu)撓試(shi)驗(yan)(yan)(yan)等，以(yi)(yi)保證這種線(xian)(xian)(xian)纜(lan)在實際使(shi)用中滿足要求(qiu)。如動態(tai)曲(qu)撓試(shi)驗(yan)(yan)(yan)主要考核軟(ruan)(ruan)電纜(lan)在受(shou)到(dao)外(wai)(wai)界的(de)(de)機械拉(la)伸(shen)和彎曲(qu)等應力(li)時(shi)，軟(ruan)(ruan)導體的(de)(de)絞(jiao)合線(xian)(xian)(xian)絲是(shi)(shi)否斷裂而(er)降低電的(de)(de)傳(chuan)輸(shu)性(xing)(xing)能(neng)，或者(zhe)刺破絕(jue)(jue)緣而(er)降低絕(jue)(jue)緣電氣(qi)性(xing)(xing)能(neng);絕(jue)(jue)緣在受(shou)到(dao)應力(li)作用是(shi)(shi)是(shi)(shi)否變形或開(kai)裂而(er)影響(xiang)電纜(lan)的(de)(de)電氣(qi)絕(jue)(jue)緣性(xing)(xing)能(neng)的(de)(de)一種試(shi)驗(yan)(yan)(yan)方法。