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1054550600
海納百川
級別: 網(wǎng)絡(luò )英雄
精華主題: 0
發(fā)帖數量: 329 個(gè)
工控威望: 5537 點(diǎn)
下載積分: 13499 分
在線(xiàn)時(shí)間: 327(小時(shí))
注冊時(shí)間: 2011-07-09
最后登錄: 2022-02-27
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樓主  發(fā)表于: 2012-05-05 12:22
現有1根300平方的電纜線(xiàn)；所帶的負荷800A左右；電纜線(xiàn)受不了；請問(wèn)能不能并1根不同規格的150平方的電纜線(xiàn)；
真誠到永遠
格林
我聽(tīng)到了花開(kāi)的聲音,也看到了花落的結局.
級別: 工控俠客
精華主題: 0
發(fā)帖數量: 135 個(gè)
工控威望: 3387 點(diǎn)
下載積分: 1586 分
在線(xiàn)時(shí)間: 43(小時(shí))
注冊時(shí)間: 2011-06-08
最后登錄: 2025-06-09
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1樓  發(fā)表于: 2012-08-28 23:24
為什么就不能達成統一意見(jiàn)呢？
電流很聰明，只會(huì )專(zhuān)挑電阻小的路徑走。
電阻和什么有關(guān)系？長(cháng)度，截面積。
同樣的長(cháng)度，不同的截面積，電阻不同，截面積越大，電阻越小。你在旁邊并聯(lián)一根小的電纜也完全可以使用，因為電流首先會(huì )經(jīng)過(guò)電阻小的電纜。

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