如何辨別電纜優劣
作者: 發布時間(jian):2023-03-30
一(yi)(yi)、試彎(wan)曲:可取一(yi)(yi)根電(dian)(dian)線(xian)頭用手反(fan)復(fu)彎(wan)曲,凡是(shi)(shi)手感柔軟、抗疲勞(lao)強(qiang)度(du)好、塑料(liao)或橡膠手感彈性(xing)(xing)大(da)且電(dian)(dian)線(xian)絕(jue)緣(yuan)(yuan)體(ti)上(shang)無(wu)龜裂的(de)就是(shi)(shi)優等(deng)品。偽劣(lie)電(dian)(dian)線(xian)絕(jue)緣(yuan)(yuan)層(ceng)(ceng)(ceng)看上(shang)去好像(xiang)很厚實(shi),實(shi)際上(shang)大(da)多是(shi)(shi)用再生塑料(liao)制成(cheng)的(de),只要稍用力擠壓,擠壓處會成(cheng)白色狀,彎(wan)曲4~6次(ci)就有斷線(xian)現象(xiang)。二、撕絕(jue)緣(yuan)(yuan):絕(jue)緣(yuan)(yuan)料(liao)都有一(yi)(yi)定(ding)的(de)機械強(qiang)度(du)和柔性(xing)(xing),輕易撕不(bu)開(kai)的(de)。而(er)劣(lie)質電(dian)(dian)線(xian)用手能撕下(xia)或掐(qia)下(xia)來一(yi)(yi)塊。三、看燃(ran)燒:按規定(ding)電(dian)(dian)線(xian)的(de)絕(jue)緣(yuan)(yuan)層(ceng)(ceng)(ceng)都具有一(yi)(yi)定(ding)的(de)阻燃(ran)性(xing)(xing)。剝下(xia)一(yi)(yi)段絕(jue)緣(yuan)(yuan)層(ceng)(ceng)(ceng),用打火機進行點(dian)燃(ran),離開(kai)明火后(hou)能繼續自燃(ran)的(de)是(shi)(shi)劣(lie)質線(xian)。四、驗厚度(du):截取一(yi)(yi)段絕(jue)緣(yuan)(yuan)層(ceng)(ceng)(ceng),看絕(jue)緣(yuan)(yuan)層(ceng)(ceng)(ceng)的(de)斷面(mian)是(shi)(shi)否(fou)有肉眼可見的(de)氣孔,其線(xian)芯是(shi)(shi)否(fou)位于絕(jue)緣(yuan)(yuan)層(ceng)(ceng)(ceng)的(de)正(zheng)中。不(bu)居中的(de)是(shi)(shi)因為工藝(yi)不(bu)高(gao)而(er)造成(cheng)的(de)偏芯現象(xiang),有氣孔說明使(shi)用的(de)...
電纜的材料有哪些?
作者: 發布(bu)時間(jian):2023-03-30
我們都(dou)知道(dao)電力的(de)(de)傳輸需要(yao)導體(ti),所(suo)以電纜的(de)(de)里邊就是(shi)金(jin)屬導體(ti),比如;銅(tong),鋁,等(deng)(deng)(deng)等(deng)(deng)(deng),其(qi)次就是(shi)對于金(jin)屬導體(ti)的(de)(de)保(bao)(bao)護(hu)(hu),不(bu)同的(de)(de)導體(ti),保(bao)(bao)護(hu)(hu)外(wai)皮也不(bu)同,一般(ban)都(dou)是(shi)使用橡膠,硅橡膠,交聯(lian)聚(ju)乙(yi)烯(xi),聚(ju)乙(yi)烯(xi),聚(ju)氯(lv)乙(yi)烯(xi)等(deng)(deng)(deng)等(deng)(deng)(deng)絕緣體(ti),這是(shi)用來保(bao)(bao)護(hu)(hu)金(jin)屬導體(ti)的(de)(de)。 由于電纜一般(ban)都(dou)是(shi)多跟線(xian)合(he)在(zai)一起組成電纜的(de)(de),所(suo)以在(zai)外(wai)層還需要(yao)保(bao)(bao)護(hu)(hu)集合(he)線(xian)的(de)(de)保(bao)(bao)護(hu)(hu)層,一般(ban)保(bao)(bao)護(hu)(hu)層里包著三到五根電線(xian)。一般(ban)保(bao)(bao)護(hu)(hu)層需要(yao)金(jin)屬加橡膠的(de)(de)組合(he),帶有鋼絲或(huo)者鋼帶。
電(dian)(dian)力電(dian)(dian)纜與(yu)控制電(dian)(dian)纜的區別介紹(shao)
作者: 發布時(shi)間:2023-03-30
大家都(dou)知(zhi)道電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)和控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)都(dou)是(shi)(shi)關于(yu)(yu)(yu)提供電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)輸(shu)(shu)送(song)的(de)(de)(de)(de)(de)設備(bei),眾(zhong)所周知(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)是(shi)(shi)用(yong)(yong)(yong)于(yu)(yu)(yu)城(cheng)市(shi)電(dian)(dian)(dian)(dian)(dian)(dian)網(wang)或發電(dian)(dian)(dian)(dian)(dian)(dian)站等地方,而控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)適用(yong)(yong)(yong)于(yu)(yu)(yu)工礦企業、能(neng)(neng)源(yuan)交通(tong)部門(men)。那么它(ta)們除了(le)適用(yong)(yong)(yong)范圍不同之(zhi)外,還(huan)有哪些方面是(shi)(shi)有區別(bie)的(de)(de)(de)(de)(de)呢?今天就為大家介紹關于(yu)(yu)(yu)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)與(yu)控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)幾個(ge)發面的(de)(de)(de)(de)(de)區別(bie)。 1、作用(yong)(yong)(yong)的(de)(de)(de)(de)(de)區別(bie) 控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)從(cong)電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)系(xi)統(tong)的(de)(de)(de)(de)(de)配電(dian)(dian)(dian)(dian)(dian)(dian)點(dian)把電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)直接(jie)傳(chuan)輸(shu)(shu)到各種用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)設備(bei)器具的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)連接(jie)線路(lu),而電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)主要用(yong)(yong)(yong)在發、配、輸(shu)(shu)、變(bian)、供電(dian)(dian)(dian)(dian)(dian)(dian)線路(lu)中(zhong)的(de)(de)(de)(de)(de)強電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)傳(chuan)輸(shu)(shu),通(tong)過的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流大,電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)在電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)系(xi)統(tong)主干線中(zhong)用(yong)(yong)(yong)以傳(chuan)輸(shu)(shu)和分(fen)配大功能(neng)(neng)電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)(neng)。 2、線芯(xin)(xin)顏色(se)(se)的(de)(de)(de)(de)(de)區別(bie) 控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)(de)(de)絕緣線芯(xin)(xin)的(de)(de)(de)(de)(de)顏色(se)(se)一(yi)般都(dou)是(shi)(shi)黑色(se)(se)印白字、還(huan)有電(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)低壓(ya)一(yi)般都(dou)是(shi)(shi)分(fen)色(se)(se)的(de)(de)(de)(de)(de)。 3、執(zhi)行標準的(de)(de)(de)(de)(de)區...