主线4平方铝线应装多大漏电断路器两个1.5匹空调和一些小功率电器够用吗 4平方的铝线配多大漏电保护器
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,
,
\u7edd\u7f18\u5bfc\u7ebf\u8f7d\u6d41\u91cf\u8ba1\u7b97\u8868
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\u7edd\u7f18\u5bfc\u7ebf\u8f7d\u6d41\u91cf\u4f30\u7b97
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\u4e0d\u540c\u7535\u611f\u6027\u8d1f\u8f7d\u529f\u7387\u56e0\u6570\u4e0d\u540c\uff0c\u7edf\u4e00\u8ba1\u7b97\u5bb6\u5ead\u7528\u7535\u5668\u65f6\u53ef\u4ee5\u5c06\u529f\u7387\u56e0\u6570cos\u0444\u53d60.8\u3002\u4e5f\u5c31\u662f\u8bf4\u5982\u679c\u4e00\u4e2a\u5bb6\u5ead\u6240\u6709\u7528\u7535\u5668\u52a0\u4e0a\u603b\u529f\u7387\u4e3a6000\u74e6\uff0c\u5219\u6700\u5927\u7535\u6d41\u662fI=P/Ucos\u0444=6000/220\u00d70.8=34(A)
\u4f46\u662f\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u5bb6\u91cc\u7684\u7535\u5668\u4e0d\u53ef\u80fd\u540c\u65f6\u4f7f\u7528\uff0c\u6240\u4ee5\u52a0\u4e0a\u4e00\u4e2a\u516c\u7528\u7cfb\u6570\uff0c\u516c\u7528\u7cfb\u6570\u4e00\u822c0.5\u3002\u6240\u4ee5\uff0c\u4e0a\u9762\u7684\u8ba1\u7b97\u5e94\u8be5\u6539\u5199\u6210
I=P\u00d7\u516c\u7528\u7cfb\u6570/Ucos\u0444=6000\u00d70.5/220\u00d70.8=17(A)
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\u8bf4\u660e\uff1a
(1)\u672c\u8282\u53e3\u8bc0\u5bf9\u5404\u79cd\u7edd\u7f18\u7ebf(\u6a61\u76ae\u548c\u5851\u6599\u7edd\u7f18\u7ebf)\u7684\u8f7d\u6d41\u91cf(\u5b89\u5168\u7535\u6d41)\u4e0d\u662f\u76f4\u63a5\u6307\u51fa\uff0c\u800c\u662f\u201c\u622a\u9762\u4e58\u4e0a\u4e00\u5b9a\u7684\u500d\u6570\u201d\u6765\u8868\u793a\uff0c\u901a\u8fc7\u5fc3\u7b97\u800c\u5f97\u3002\u7531\u886853\u53ef\u4ee5\u770b\u51fa\uff1a\u500d\u6570\u968f\u622a\u9762\u7684\u589e\u5927\u800c\u51cf\u5c0f\u3002
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6mm2\u00d76=36A36A\u00d7220V=7920W
4\u00d76=2424\u00d7220=5280W
2.5\u00d76=1515\u00d7220=3300W\u5728\u8fd9\u6837\u7684\u60c5\u51b5\u4e0b\u662f\u53ef\u4ee5\u4fdd\u8bc1\u8fde\u7eed\u4f7f\u7528\u5e76\u5b89\u5168\u7684\u3002
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10\u4e0b\u4e94\uff0c100\u4e0a\u4e8c\uff1b\u300025.35,\u56db\u4e09\u754c\uff1b70,95,\u4e24\u500d\u534a\uff1b\u7a7f\u7ba1\uff0c\u6e29\u5ea6\u516b.\u4e5d\u6298\uff1b\u88f8\u7ebf\u52a0\u4e00\u500d\uff1b\u94dc\u7ebf\u5347\u7ea7\u7b97\u3002
\u5bfc\u7ebf\u89c4\u683c
1\u30011.5\u30012.5\u30014\u30016\u300110\u300116\u300125\u300135\u300150\u300170\u300195\u3001120\u3001150\u3001185\u3001240\u5e73\u65b9\u6beb\u7c73\u3002\u4e0d\u5e38\u7528\u7684\u6709\uff1a0.5\u30010.75\u3001300\u3001400\u3001500\u5e73\u65b9\u6beb\u7c73\u7b49\u3002
2.5\u5e73\u7684\u94dc\u7ebf=4\u5e73\u7684\u94dd\u7ebf
5\u00d74=20A
\u518d\u52a0\u4e0a\u7a7f\u7ba1
20\u00d70.8=16A\u7684\u7535
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2.5\u5e73\u65b9\u6beb\u7c73(16A\uff5e25A)
4\u5e73\u65b9\u6beb\u7c73(25A\uff5e32A)
6\u5e73\u65b9\u6beb\u7c73(32A\uff5e40A)
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2.5\u5e73\u65b9\u6beb\u7c73(13A\uff5e20A)
4\u5e73\u65b9\u6beb\u7c73(20A\uff5e25A)
6\u5e73\u65b9\u6beb\u7c73(25A\uff5e32A)
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2\u3001\u59273\u5339\u7a7a\u8c03\u8017\u7535\u7ea6\u4e3a3000w(\u7ea614a)\uff0c\u90a3\u4e481\u53f0\u7a7a\u8c03\u5c31\u9700\u8981\u5355\u72ec\u7684\u4e00\u67612.5\u5e73\u65b9\u6beb\u7c73\u7684\u94dc\u82af\u7535\u7ebf\u4f9b\u7535\u3002
3\u3001\u73b0\u5728\u7684\u4f4f\u623f\u8fdb\u7ebf\u4e00\u822c\u662f4\u5e73\u65b9\u6beb\u7c73\u7684\u94dc\u7ebf\uff0c\u56e0\u6b64\uff0c\u540c\u65f6\u5f00\u542f\u7684\u5bb6\u7528\u7535\u5668\u4e0d\u5f97\u8d85\u8fc725a(\u53735500\u74e6)\uff0c\u6709\u4eba\u5c06\u623f\u5c4b\u5185\u7684\u7535\u7ebf\u66f4\u6362\u62106\u5e73\u65b9\u6beb\u7c73\u7684\u94dc\u7ebf\u662f\u6ca1\u6709\u7528\u5904\u7684\uff0c\u56e0\u4e3a\u8fdb\u5165\u7535\u8868\u7684\u7535\u7ebf\u662f4\u5e73\u65b9\u6beb\u7c73\u7684\u3002
4\u3001\u65e9\u671f\u7684\u4f4f\u623f(15\u5e74\u524d)\u8fdb\u7ebf\u4e00\u822c\u662f2.5\u5e73\u65b9\u6beb\u7c73\u7684\u94dd\u7ebf\uff0c\u56e0\u6b64\uff0c\u540c\u65f6\u5f00\u542f\u7684\u5bb6\u7528\u7535\u5668\u4e0d\u5f97\u8d85\u8fc713a(\u53732800\u74e6)\u3002
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4\u5e73\u65b9\u662f25-32A
6\u5e73\u65b9\u662f32-40A
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