引線允許電流參考表

引線允許電流參考表表D.1套管內(nèi)銅導桿電流A銅導桿螺距300及以下M12

475M16

600M20

900M24

1200M30

1400M33M21400φ26/36銅管M22000φ30/40銅管M23000M48M2

表D.2圓銅引線裸導線直徑mm2.443.054.85.56.581012有效截面mm24.687.318.123.833.250.378.5113.1允許電流A22.53587115160241377522用紙管作外絕緣紙板管內(nèi)徑mm

6688101214管壁每邊厚2mm允許電流A

35871041672172953804mm

3587104149194261333每邊包紙厚2mm允許電流A

3587104

紙管中套紙包圓線每邊紙厚2mm紙管尺寸mm

φ10/14φ12/16

允許電流A

3587

表D.3引線片電流A引線片紫銅線電流密度A/mm2厚mm寬bmm片φdmm長Lmm≤72.20.4302141703.01108.30.4303141703.01144.30.4304142003.011950.4305142003.252600.4306142003.623460.4357182003.534620.4359182003.676060.44010222503.798080.45011252753.6710830.46012273003.7814430.46016353003.76

注：(1)大于1500A用兩疊銅皮見圖(a)；(2)小于1500A用一疊銅皮見圖(b)；(3)大于φ4.1紙包圓線，用接線板見圖(c)；(4)小于φ3.05紙包圓線，將引線打圈見圖(d)。表D.4引線用銅(鋁)棒裸線直徑mm截面mm2允許電流A每邊絕緣厚度mm不包絕緣3681020銅鋁銅鋁銅鋁銅鋁銅鋁銅鋁2.444.6822.51222.512

3.057.3135183518

4.113.263326332

628.313668136681366813368

850.3241121229121202121191121182121

1078.538618830918827118825518824318820916212113.151227239727234526732325030723826220314153.964536949136943934039630737629131824616201.174148355946047839344736732234735529220314.1107075576562965053560249556946847238824452.41295105594076679564873559969056257046530706.9181014751295105510908881045852933760765624注：絕緣支架遮蓋引線表面在10%以上時電流減小5%～15%。表D.5紙包多股銅線銅導線直徑mm有效截面mm2每邊包紙厚mm368101520253050允許電流A5.816777777

7.725120111104

10.250198171160152139130

12.670254221203193174163

14.395311265251233210196186

16120362309287271244227216

18.1150427363336315284262249

20185495416385363324301284275

23240598502464434388356336320

26.230070658954350944241639037232729.8400865714658614546498468445389表

D.6裸銅排銅排尺寸(厚×寬)mm截面mm2銅排附加損耗%在箱內(nèi)裝置方向垂直水平允許電流A3×30

4254253×40

5665664×40

1.67667665×40199.129569564×60249.1

115011505×60299.13.6143513906×60359.14.5172015307×60

201016608×60

230017907×80559.1