鋼芯鋁絞線直流電阻及短路電流計算
大?。?/span>34 人氣： 2010-01-27 需要積分：0
標簽：直流(42686)
鋼芯鋁絞線直流電阻及短路電流計算:??????導(dǎo)地線直流電阻及短路電流計算????????結(jié)構(gòu)參數(shù)????????
導(dǎo)線型式??名稱?根數(shù)?線直徑(mm)?截面(mm）?層絞入率?電阻率(10E-9Ω.m)?層導(dǎo)線電阻(Ω/km)?密度(g/cm^3)?比熱(j/g.℃)?溫度系數(shù)(1/℃)
OPGW-2S1/24SM(AA/AS 100/35-163.7)?中心?20.3%AS線?1?3.5?9.621127338??84.8?8.813935938?6.59?0.504?0.0036
?第一層?20.3%AS線?3?3.25?24.88730388?1.014?84.8?3.455062888?6.59?0.504?0.0036
??AA線?2?3.25?16.59153592??32.53?1.988087189?2.7?0.91?0.0036
????????第一層電阻(Ω/km)???
????????1.261946881???
??SUS管?1(24芯光纖)?3.2???????
?第二層?AA線?14?2.75?83.15402913?1.02?32.53?0.399025764?2.7?0.91?0.0036
???????????
?第三層??????????
???????????
?????總截面???總電阻???
?????134.2539963???0.29308436???
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