產品名稱:YHHR 電(dian)焊機(ji)電(dian)纜-YHHR型特(te)軟電(dian)纜
產品型號:
更新時間:2019-11-14
產品報價:10
產品特點:YHHR 電(dian)(dian)焊機(ji)電(dian)(dian)纜(lan)(lan)(lan)-YHHR型(xing)特(te)軟電(dian)(dian)纜(lan)(lan)(lan)可(ke)采用電(dian)(dian)焊YHH型(xing)橡套(tao)軟件電(dian)(dian)纜(lan)(lan)(lan)和(he)YHHR型(xing)特(te)軟焊接電(dian)(dian)纜(lan)(lan)(lan)。選用焊接電(dian)(dian)纜(lan)(lan)(lan)時應從溫升和(he)電(dian)(dian)壓降兩方面(mian)來才考慮。對長度20米以下的(de)可(ke)忽略其壓降的(de)影響,而只按電(dian)(dian)流(liu)來選擇(ze),電(dian)(dian)流(liu)密(mi)度可(ke)取每(mei)平方4—10A。下列出各種長度下不同(tong)電(dian)(dian)流(liu)時,焊接電(dian)(dian)纜(lan)(lan)(lan)的(de)截(jie)面(mian)積的(de)選用。
YHHR 電焊機電纜-YHHR型特軟電纜的詳細資料:
YHHR 電焊機電纜-YHHR型特軟電纜可采(cai)用電(dian)焊YHH型橡套軟(ruan)件電(dian)纜(lan)和YHHR型特軟(ruan)焊接電(dian)纜(lan)。選(xuan)用焊接電(dian)纜(lan)時應從(cong)溫升(sheng)和電(dian)壓降兩方面來(lai)才考慮。對長度20米(mi)以(yi)下(xia)的(de)可忽略(lve)其壓降的(de)影(ying)響,而只按電(dian)流(liu)來(lai)選(xuan)擇,電(dian)流(liu)密(mi)度可取(qu)每平方4—10A。下(xia)列(lie)出(chu)各種長度下(xia)不同電(dian)流(liu)時,焊接電(dian)纜(lan)的(de)截面積(ji)的(de)選(xuan)用。
YHHR 電焊機電纜-YHHR型特軟電纜利用(yong)焊(han)(han)(han)(han)(han)接電(dian)(dian)纜(lan)(lan)(lan)將焊(han)(han)(han)(han)(han)鉗(qian)和(he)接地夾鉗(qian)接到電(dian)(dian)源上。焊(han)(han)(han)(han)(han)接電(dian)(dian)纜(lan)(lan)(lan)是焊(han)(han)(han)(han)(han)接回(hui)路(lu)的(de)一部分,除要求應具有(you)足夠的(de)導電(dian)(dian)截面(mian)(mian)以(yi)免過熱而引起(qi)導線絕緣破壞外,還必須耐磨和(he)耐擦傷,應柔軟易彎(wan)曲,具有(you)大的(de)撓度,以(yi)便焊(han)(han)(han)(han)(han)工容易操作,減(jian)輕勞動強度。焊(han)(han)(han)(han)(han)接電(dian)(dian)纜(lan)(lan)(lan)應采用(yong)多股(gu)細(xi)銅線電(dian)(dian)纜(lan)(lan)(lan),一般可(ke)選用(yong)電(dian)(dian)焊(han)(han)(han)(han)(han)機用(yong)YHH 型橡套(tao)電(dian)(dian)纜(lan)(lan)(lan)或 YHHR 型橡套(tao)電(dian)(dian)纜(lan)(lan)(lan)。焊(han)(han)(han)(han)(han)接電(dian)(dian)纜(lan)(lan)(lan)的(de)截面(mian)(mian)積可(ke)根據(ju)焊(han)(han)(han)(han)(han)機額定焊(han)(han)(han)(han)(han)接電(dian)(dian)流(liu)進行選擇,焊(han)(han)(han)(han)(han)接電(dian)(dian)纜(lan)(lan)(lan)截面(mian)(mian)與(yu)電(dian)(dian)流(liu)、導線長度的(de)關系.
1.電(dian)(dian)(dian)焊(han)機(ji)一次(ci)工(gong)作電(dian)(dian)(dian)流(liu)的計算 先按上節所述方法求(qiu)出弧焊(han)機(ji)所需的電(dian)(dian)(dian)源容(rong)量(liang),再按下列公式求(qiu)得(de)電(dian)(dian)(dian)焊(han)機(ji)一次(ci)工(gong)作電(dian)(dian)(dian)流(liu)。
(1)單相供電(dian)回(hui)路時: 式中(zhong) Iux——導線(電(dian)纜)允許(xu)電(dian)流,A。 (2)按電(dian)壓(ya)損失(shi)(shi)校驗。要求(qiu)電(dian)壓(ya)損失(shi)(shi)不超(chao)過(guo)10%,盡(jin)量控制在(zai)5%以內。
對(dui)單相(xiang)回(hui)路(lu): 式中 △U%——電焊機(ji)一次(ci)回(hui)路(lu)電壓(ya)損失(shi)百分數; R、X——電線(電纜)的電阻和電抗,Ω; cosφ——功率(lv)因數,如無(wu)銘牌(pai),一般(ban)可取(qu)0.5。
2 一(yi)次(ci)電(dian)纜(lan)一(yi)般(ban)采用(yong)(yong)(yong)500V單(dan)芯(xin)或(huo)多芯(xin)橡皮軟線(xian),如YCW型、BXR型。如用(yong)(yong)(yong)三芯(xin)或(huo)敷設在管道(dao)內或(huo)長度較大時(shi),電(dian)流密度可(ke)(ke)取(qu)3~6A/mm2。而(er)一(yi)般(ban)長度的(de)(de)(de)單(dan)芯(xin)電(dian)纜(lan),電(dian)流密度可(ke)(ke)取(qu)5~10A/ mm2 。 3.電(dian)焊機(ji)二(er)(er)次(ci)電(dian)纜(lan)的(de)(de)(de)選(xuan)擇 電(dian)焊機(ji)二(er)(er)次(ci)回路(lu)的(de)(de)(de)電(dian)流都很(hen)大,電(dian)纜(lan)選(xuan)擇不當(dang),易造成嚴重(zhong)發熱,浪(lang)費(fei)電(dian)能。電(dian)焊機(ji)二(er)(er)次(ci)導線(xian)可(ke)(ke)用(yong)(yong)(yong)YH型電(dian)焊機(ji)用(yong)(yong)(yong)電(dian)纜(lan)及YHHR型特(te)軟電(dian)纜(lan)。導線(xian)長度在20m以下時(shi),電(dian)流密度可(ke)(ke)取(qu)4~10A/ mm2 。一(yi)般(ban)要(yao)求焊接回路(lu)導線(xian)壓降(jiang)應小于4V,即(ji)約小于電(dian)焊機(ji)次(ci)級電(dian)弧電(dian)壓的(de)(de)(de)10%。當(dang)然為了節電(dian),應盡可(ke)(ke)能使該壓降(jiang)小些(xie)。
YHHR 焊(han)(han)接電(dian)纜(lan)(lan)-YHHR焊(han)(han)機電(dian)纜(lan)(lan)-YHHR焊(han)(han)把線-YHHR電(dian)焊(han)(han)機電(dian)纜(lan)(lan)的作用(yong)是傳(chuan)導焊(han)(han)接電(dian)流,型號(hao)有YHH型電(dian)焊(han)(han)橡膠套電(dian)纜(lan)(lan)和(he)YHHR型特軟電(dian)纜(lan)(lan)兩種,其截面和(he)長度應根據使(shi)用(yong)焊(han)(han)接電(dian)流的大小(xiao)進行(xing)選用(yong),見下表(biao)。
長度(m) | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 |
100 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 28 | 35 |
150 | 35 | 35 | 35 | 35 | 50 | 50 | 60 | 70 | 70 |
200 | 35 | 35 | 50 | 50 | 60 | 70 | 70 | 70 | 70 |
300 | 35 | 50 | 60 | 60 | 70 | 70 | 70 | 85 | $5 |
400 | 35 | 50 | 70 | 70 | S5 | 85 | 85 | 95 | 95 |
500 | 50 | 60 | B5 | 85 | 95 | 95 | 95 | 120 | 120 |
600 | 60 | 70 | 85 | 85 | 95 | 95 | 120 | 120 | 120 |
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