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滑線交流電阻的計(jì)算
發(fā)布時(shí)間: 2013-02-28 點(diǎn)擊次數(shù): 1482次Ra=KjK1Rθ
Kj:集膚效應(yīng)系數(shù),因計(jì)算較復(fù)雜,在這里取經(jīng)驗(yàn)值見(jiàn)下表
K1:鄰近效應(yīng)系數(shù),滑線取1.03
Rθ:溫度θ℃時(shí)的直流電阻
集膚效應(yīng)系數(shù)Kj
滑線截面積mm2導(dǎo)體材質(zhì)鋁銅≤1001.001.00100~1500.0051.011250~4001.0081.028400~6401.021.055640~8001.071.14800~10001.1121.181000~12501.131.20>12501.151.22
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