如何根据设备功率和电缆长度计算电缆线径?? 怎么根据功率计算电缆直径
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薛工：根据功率得出电流。根据5%电压降得出电阻。利用公式S=P铜L/R就OK了。
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绛旓細闂涓:鐢电嚎闀垮害鎬庝箞璁＄畻???鎬... 鐢电紗闀垮害璁＄畻:鐢电紗闀垮害=(姘村钩+鍨傜洿+棰勭暀纭脳(1+2.5%)(寮涘害銆佹尝鍨嬪集搴︺佷氦鍙夌郴鏁) bbs6.zhulong/forum/detail6118158_1 闂浜:瑁呬慨鐢电嚎鐨勯暱搴︽庝箞绠 鍚勪釜鍔熻兘鍖衡欏氨鏄璁剧疆鐢垫簮鎻掑骇銆佸紑鍏崇瓑鐨勪綅缃,渚涗綘鎵闇瑕佺殑鐢ㄧ數璁惧銆 鍋囧浣犵殑鐢电绂诲湴鏄疉1.4绫,澶╄姳楂樺害鏄疕...
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绛旓細10kw涓夌浉鐢垫満鐨勯瀹氱數娴侊細I锛漃/1.732/U/cos蠁锛10/1.732/0.38/0.78鈮19.5(A)鑻ュ厑璁告湯绔(100绫崇)绾夸笌绾跨殑鐢靛帇闄嶄负10V锛屽垯姣忔牴鐢电嚎鎹熻楃殑鐢靛帇闄嶄负5V銆傛瘡鏍鐢电嚎鐨绾块樆锛歊锛漊/I锛5/19.5鈮0.256(惟)鐢电嚎鎴潰(閾滆姱鐢电嚎鐨勭數闃荤巼锛0.0172)锛歋锛澫伱桳/R锛0.0172脳100/0.256鈮7(m...
绛旓細濡16mm鈥欓摐绾跨殑杞芥祦閲,鍙鎸25mm2閾濈嚎璁＄畻銆 A璇:鎴戜竴鑸槸杩欐牱璁＄畻鐨,鐭ラ亾鍔熺巼灏辩敤鍔熺巼闄や互鐢靛帇寰楀埌鐢垫祦,鐒跺悗鐢ㄧ數娴侀櫎浠ユ瘡骞虫柟姣背杞芥祦澶х害4-6A鐨勫父鏁,寰楀埌鐨勫氨鏄鐢电紗鐨勭嚎寰勩 B璇:缁欎綘涓渶绠鍗曞揩閫熺殑绠楁硶,1涓钩鏂瑰甫2涓崈鐡 闂鍏:鐢电紗鍏佽闀垮害鐨勮绠楀叕寮 涓昏鏄帇闄嶅惂,鍦ㄥ厑璁稿帇闄嶈寖鍥村唴,鏈鐪侀挶鐨勫氨琛屼簡...
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