?!DOCTYPE HTML> 贵阳高温늼(哪家?h,厂家,生厂家,批发) - 贵州勇斌늺늼有限公司
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贵阳高温늼截面校验

Q?Q按电压选择늼Q按照上q的一般原则中的优U条进行选择?/span>
Q?Q按l济甉|密度选择늼截面Q计方法与导线截面的计方法一栗?/span>
Q?Q按照线路大长期负蝲甉|校验늼截面Iux≥Izmax
式中QIux——电~的允许负蝲甉|QAQ;
Izmax——电~中长期通过的大负蝲甉|QAQ?/span>
我们在^时的工作中长用的是q种选择ҎQ通常是先求出U\的工作电,再按照线路大的工作电不应该大于늼的允许蝲量。电~允许的长期工作甉|见表一?/span>
我们在实际工作中l常会遇到这U情况,׃负荷的增加,负蝲甉|增大Q原有电~蝲量不Q过运行,Z增加定wQ考虑到原有电~运行正常,要重新敷讄~施工难度大而且不经,我们帔R用双q、甚至三q的做法?/span>
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