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高柔线的好坏环市珠江电缆都能带用户辨认 电缆的发热环市珠江电缆为你解析原因 环市电缆的护套的厚度和质量之间的关系 环市珠江拖链电缆也会发热吗?原因有哪些 C级阻燃电缆和耐火电缆能比较吗? 电缆电线使用的时候长短跟维护也有很大的关系 关于护套电缆的类型,环市珠江电缆来说一说 环市珠江的BV电线是什么?电缆电线有哪些分类? 電纜行業某些領域的發展增速已經發生下滑的趨勢 环市电缆讲解钢芯铝绞线与耐张线夹液压作业过程 环市珠江电缆开展电缆接线 钢管焊接技术比武活动 环市牌绝缘电缆的分类有哪些? 环市珠江电缆生产工艺是什么? 环市珠江船用电缆CKJPJ85/SC是什么? 环市珠江阻燃电缆ZR-KVVRP耐高温ZR-KVVRP-105电线 |
您当前的位置:福利姬液液酱喷水_久久久无码中文字幕久..._欧美性猛交XXXⅩ富婆_国产免费AV国片精品一区二区 - 环市珠江电(dian)(dian)线厂的RV和BVR都是软电(dian)(dian)线电(dian)(dian)缆 它们有什么区别 发布时间:2023.11.02 新闻来源:环市珠江电缆实业有限公司 浏览次数:
尽管(guan)只要(yao)一字之差(cha),外观看(kan)起(qi)(qi)来也差(cha)不(bu)多,但细究(jiu)起(qi)(qi)来,其用(yong)处和特(te)性仍是有许多不(bu)同的;接下来,小编(bian)给我们详解RV与BVR绝缘电线的相同点与不(bu)同点。 电线RV与BVR相(xiang)同点 1、两种电线都归(gui)于软电线,都由多股铜(tong)丝(si)组成(cheng),都叫聚氯(lv)乙烯绝缘软电线; 2、结构都(dou)很简略,都(dou)由导体加(jia)聚(ju)氯乙烯(xi)绝缘(yuan)层(ceng)组(zu)成; 3、色彩方面,两者都有多种色彩——红、黄(huang)(huang)、黑、蓝、绿、黄(huang)(huang)绿(双(shuang)色)等。 不同点 1、履(lv)行标(biao)准:BVR电线(xian)产(chan)品标(biao)准为GB/T 5023.3-2008,RV线(xian)产(chan)品标(biao)准为GB/T 3956 第5类; 2、额外(wai)电(dian)(dian)(dian)压:BVR电(dian)(dian)(dian)线(xian)(xian)归于(yu)布电(dian)(dian)(dian)线(xian)(xian)类(lei),一般额外(wai)电(dian)(dian)(dian)压为300/500V,而(er)RV线(xian)(xian)因(yin)多用于(yu)机械内部作为衔(xian)接电(dian)(dian)(dian)源用线(xian)(xian),对电(dian)(dian)(dian)压要求较高(gao),有450V/750V或许更高(gao)600/1000V; 3、产品(pin)用(yong)(yong)(yong)(yong)处:BVR电(dian)线(xian)(xian)多(duo)用(yong)(yong)(yong)(yong)作布电(dian)线(xian)(xian),用(yong)(yong)(yong)(yong)于固定(ding)布线(xian)(xian)时要求柔软(ruan)的场合,许(xu)多(duo)时分能够(gou)替代(dai)BV线(xian)(xian)运(yun)用(yong)(yong)(yong)(yong),究竟BVR电(dian)线(xian)(xian)更软(ruan);RV线(xian)(xian)则多(duo)用(yong)(yong)(yong)(yong)于各种电(dian)器或许(xu)机械内部衔接用(yong)(yong)(yong)(yong)线(xian)(xian),安防设备、仪器仪表也(ye)常(chang)常(chang)会用(yong)(yong)(yong)(yong)到它,所以RV线(xian)(xian)更软(ruan),也(ye)因而得(de)名“电(dian)子线(xian)(xian)”; 4、工作(zuo)温度(du):惯例BVR电线工作(zuo)温度(du)为70℃,RV线为80℃,当(dang)然,假如有特殊要求(qiu),可选购耐高温的品种(zhong); 5、电(dian)线(xian)外(wai)观(guan):从(cong)外(wai)观(guan)上看(kan),两者也是有差异的,BVR电(dian)线(xian)要(yao)(yao)比RV线(xian)更软(ruan);其(qi)次,BVR电(dian)线(xian)的铜丝要(yao)(yao)比RV线(xian)的铜丝要(yao)(yao)粗,这便是为什么(me)RV线(xian)更软(ruan)的原因。 购买国标(biao)RV与(yu)BVR电线的小技巧 1、要看电缆的表面 看有(you)无(wu)质量(liang)体(ti)系认证书、看合格证是(shi)否标(biao)准、看有(you)无(wu)厂名、厂址、查(cha)验章、生产日期、看电(dian)(dian)线(xian)上是(shi)否印有(you)商标(biao)、标(biao)准、电(dian)(dian)压等。还(hai)要(yao)看电(dian)(dian)线(xian)铜芯(xin)(xin)的原料,一(yi)般国标(biao)电(dian)(dian)缆选用紫(zi)铜线(xian)芯(xin)(xin)。 2、要试(shi)电缆(lan)柔韧程度 可取一根(gen)电缆(lan)头用(yong)手重复曲折,但(dan)凡手感(gan)柔软、抗疲劳强(qiang)度(du)好、塑料或(huo)橡胶(jiao)手感(gan)弹(dan)性大(da)且(qie)电线绝缘体(ti)上无裂(lie)缝。 3、称电缆分量 国(guo)标电缆,一般都在规则(ze)的(de)分(fen)量范(fan)围内(nei)。质(zhi)量差的(de)电线(xian)分(fen)量缺(que)乏,要(yao)么(me)(me)长度不行,要(yao)么(me)(me)电线(xian)铜(tong)芯杂质(zhi)过多(duo)。 4、看电缆铜质 国标电(dian)(dian)缆的(de)铜(tong)(tong)芯应该是(shi)紫红色(se)(se)、有(you)光泽、手(shou)感软。质(zhi)量(liang)欠(qian)好的(de)电(dian)(dian)缆铜(tong)(tong)芯为(wei)紫黑色(se)(se)、偏(pian)黄或(huo)偏(pian)白,杂质(zhi)多(duo),机械强(qiang)度(du)差,并且(qie)电(dian)(dian)线(xian)内常有(you)断线(xian)现象(xiang)。查(cha)看时(shi),你只要把(ba)电(dian)(dian)线(xian)一头(tou)剥开2 cm,然后用一张白纸在铜(tong)(tong)芯上(shang)(shang)略微搓(cuo)一下,假(jia)如白纸上(shang)(shang)有(you)黑色(se)(se)物质(zhi),阐(chan)明铜(tong)(tong)芯里杂质(zhi)比较(jiao)多(duo)。还有(you),质(zhi)量(liang)欠(qian)好的(de)电(dian)(dian)线(xian)绝缘层(ceng)看上(shang)(shang)去好像很扎实(shi),实(shi)际上(shang)(shang)大多(duo)是(shi)用再生塑料(liao)制(zhi)成的(de),时(shi)刻一长,绝缘层(ceng)会老化而漏电(dian)(dian)。 5、看电缆价格 因为质量(liang)欠好电线的制造(zao)成本低(di),因而,价格也低(di),还请顾客细心区分,不是价格低(di)就(jiu)好。
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