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船用通信電纜CHEPJ/CHEPF/SC/NC的(de)電(dian)(dian)氣技術(shu)指標(biao)項目多而(er)高。一般的(de)金屬纜有導線電(dian)(dian)阻(zu)(zu)(zu),絕緣電(dian)(dian)阻(zu)(zu)(zu),工作(zuo)電(dian)(dian)容(rong),絕緣強度,電(dian)(dian)容(rong)不平衡等(deng)要求。對于長(chang)途和同(tong)軸電(dian)(dian)纜,除以上要求外,還有端阻(zu)(zu)(zu)抗(kang),阻(zu)(zu)(zu)抗(kang)不均勻性,衰減(jian)常數,串音等(deng)特殊要求。

1、電線表面標志

根據國家(jia)標準規定，電(dian)線(xian)表面應有(you)制(zhi)造廠名、產(chan)品型號和額定電(dian)壓的連續標志。這有(you)利于在電(dian)線(xian)使用過程中發生問題(ti)時(shi)(shi)能及時(shi)(shi)找到制(zhi)造廠，消費者在選購電(dian)線(xian)時(shi)(shi)務必注意(yi)這一點。

同時消費者在選購電(dian)線時應注意合格證(zheng)上標(biao)明的制造(zao)廠(chang)名、產(chan)品型號、額定電(dian)壓與(yu)電(dian)線表面的印刷標(biao)志是(shi)否*，防止(zhi)冒牌產(chan)品。

2、電線外觀

消費(fei)者(zhe)在(zai)選購電(dian)(dian)線(xian)時應(ying)注意電(dian)(dian)線(xian)的外觀(guan)應(ying)光(guang)滑(hua)平整(zheng)(zheng)，絕緣和護(hu)套層無(wu)損壞(huai)，標志印字清晰，手摸(mo)電(dian)(dian)線(xian)時無(wu)油(you)膩感(gan)。從電(dian)(dian)線(xian)的橫截(jie)面看，電(dian)(dian)線(xian)的整(zheng)(zheng)個圓周(zhou)上絕緣或護(hu)套的厚度(du)應(ying)均(jun)勻(yun)，不應(ying)偏(pian)芯(xin)，絕緣或護(hu)套應(ying)有一定的厚度(du)。

3、導體線徑

消費者在(zai)選購電(dian)線(xian)時(shi)應注意導體線(xian)徑是否與合(he)格(ge)證上明示的截(jie)面相符，若導體截(jie)面偏小，容(rong)易使電(dian)線(xian)發(fa)熱引起(qi)短路。建議家庭照明線(xian)路用電(dian)線(xian)采(cai)用1.5平方(fang)毫米及以(yi)上規格(ge)；空調、微波(bo)爐(lu)等用功率較大的家用電(dian)器(qi)應采(cai)用2.5平方(fang)毫米及以(yi)上規格(ge)的電(dian)線(xian)。

4、規范使用

應規范布(bu)線(xian)(xian)(xian)(xian)，固定(ding)線(xian)(xian)(xian)(xian)路(lu)好采用BV單芯線(xian)(xian)(xian)(xian)穿(chuan)管子，注意在布(bu)線(xian)(xian)(xian)(xian)時(shi)不要(yao)碰(peng)壞(huai)電(dian)線(xian)(xian)(xian)(xian),在房間(jian)裝潢時(shi)不要(yao)碰(peng)壞(huai)電(dian)線(xian)(xian)(xian)(xian)；在一路(lu)線(xian)(xian)(xian)(xian)里(li)中間(jian)不要(yao)接頭；電(dian)線(xian)(xian)(xian)(xian)接入(ru)電(dian)器(qi)箱(盒)時(shi)不要(yao)碰(peng)線(xian)(xian)(xian)(xian)。

船用通信電纜CHEPJ/CHEPF/SC/NC執行標準：IEC 60092系列，GB/T 9331～9334系列，NEK 606，JIS C3410系列。船用電纜主要(yao)參數有(you)型號、芯數、標(biao)稱截面積、燃燒特性、額定電壓、允許長期工作溫度等主要(yao)參數。