十平方的铜线可以负载多大的电流？ 物理：10平方mm的铜线能承受多大电流(安培)？
10\u5e73\u65b9\u7684\u94dc\u7ebf\u6700\u5927\u80fd\u8d1f\u8f7d\u591a\u5927\u7684\u7535\u6d41\uff1f\u7b54\uff1a10\u5e73\u65b9\u6beb\u7c73\u94dc\u6700\u5927\u80fd\u8d1f\u8f7d65A\u3002
10\u5e73\u65b9\u94dc\u7535\u7ebf\u5bb6\u5ead\u5b89\u5168\u4f7f\u7528\u6807\u51c6\u662f\uff1a\u5982\u679c\u662f\u6697\u88c5\u53d65A/\u5e73\u65b9\uff0c\u660e\u88c57A/\u5e73\u65b9\u3002\u90a3\u4e4810\u5e73\u65b9\u94dc\u7535\u7ebf\u660e\u88c5\u901a\u8fc7\u4e3a70A\u5728220V\u7535\u538b\u4e0b\u53ef\u5e26\u529f\u7387\u4e3a\uff1a15kw;\u6697\u88c5\u65f6\u4e5f\u53ea\u670911KW\u4e86\u8fd9\u662f\u7531\u4e8e\u7ebf\u8def\u5728\u5899\u91cc\u5f71\u54cd\u4e86\u7ebf\u8def\u7684\u6563\u70ed\u3002
\u94dc\u7ebf\u8d1f\u8f7d\u7535\u6d41\u8ba1\u7b97\u65b9\u6cd5\uff1a
\u5bb6\u7528\u7684\u4e00\u822c\u662f\u5355\u76f8\u7684\uff0c\u5176\u6700\u5927\u80fd\u6210\u53d7\u7684\u529f\u7387\uff08Pm\uff09\u4e3a\uff1a\u4ee52.5\u5e73\u65b9\u6beb\u7c73\u4e3a\u4f8b
Pm=\u7535\u538bU\u00d7\u7535\u6d41I\uff1d220\u4f0f\u00d730\u5b89\uff1d6600\u74e6\u53d6\u5b89\u5168\u7cfb\u6570\u4e3a1.3\uff0c\u90a3\u4e48\u5176\u957f\u65f6\u95f4\u5de5\u4f5c\uff0c\u5141\u8bb8\u7684\u529f\u7387(P)\u4e3a\uff1a
P=Pm\u00f71.3\uff1d6600\u00f71.3=5077\u74e6
\u201c2.5\u5e73\u65b9\u201d\u7684\u94dc\u7ebf\u3002\u80fd\u627f\u53d75077\u74e6\u7684\u8d1f\u8377\u3002
2.5\u5e73\u65b9\u6beb\u7c73\u94dc\u7535\u6e90\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\u662f30A\uff0c220V\u7684\u60c5\u51b5\u53ef\u4ee5\u957f\u65f6\u95f4\u627f\u53d7\u7684\u6700\u5927\u8d1f\u8377\u662f5077W\u529f\u7387\u3002
\u4e00\u822c\u94dc\u5bfc\u7ebf\u8f7d\u6d41\u91cf\u5bfc\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\u662f\u6839\u636e\u6240\u5141\u8bb8\u7684\u7ebf\u82af\u6700\u9ad8\u6e29\u5ea6\u3001\u51b7\u5374\u6761\u4ef6\u3001\u6577\u8bbe\u6761\u4ef6\u6765\u786e\u5b9a\u7684\u3002\u4e00\u822c\u94dc\u5bfc\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\u4e3a5~8A/mm2\uff0c\u94dd\u5bfc\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\u4e3a3~5A/mm2\u3002
\u7efc\u5408\u4e0a\u8ff0\u6240\u8bf4\u7684\uff0c\u73b0\u5728\u7684\u7535\u529b\u8870\u51cf\u5389\u5bb3\uff0c\u52a0\u4e0a\u7535\u529b\u8bbe\u5907\u7684\u8d28\u91cf\u4e2d\u7b49\u5316\uff0c\u6240\u4ee5\u5b89\u5168\u7684\u7535\u529b\u662f\u6bcf\u5e73\u7c736A\uff0c\u7535\u529b\u4f7f\u7528\u6bcf\u5e73\u7c737A\uff0c\u5b89\u5168\u7684\u7535\u529b\u4f7f\u7528\u6bcf\u5e73\u7c73\u5e94\u8be5\u4e3a6A\uff0c\u5982\u679c\u60a8\u9700\u8981\u8ba1\u7b97\u65b9\u5f0f\u5e94\u8be5\u662f1.5\u5e73\u7c73\u00d76A=10.5A
10.5A\u00d7220W=2310W
\u8fd9\u5c31\u662f1.5\u5355\u8f74\u6700\u5927\u8f93\u51fa\u529f\u7387
\u5982\uff1a1.5mm2bvV\u94dc\u5bfc\u7ebf\u5b89\u5168\u8f7d\u6d41\u91cf\u7684\u63a8\u8350\u503c1.5\u00d78A/mm2=12A220V\u7684\u7535\u538b\u7684\u8bdd\u5c31\u662f\u529f\u7387=\u7535\u538b\u00d7\u7535\u6d41=220\u00d712=2640\u74e6=2.64\u5343\u74e6
\u8981\u770b\u662f\u660e\u7ebf\u94fa\u8bbe\u8fd8\u662f\u6697\u7ebf\u94fa\u8bbe\u4e86\uff1f10\u5e73\u65b9\u7684\u94dc\u82af\u7ebf\uff0c\u6700\u5927\u53ef\u4ee5\u627f\u53d768A\u7684\u7535\u6d41\uff0c\u5982\u679c\u662f\u660e\u7ebf\u94fa\u8bbe\u7684\u8bdd\uff0c\u6700\u5927\u7535\u6d41\u5e94\u63a7\u5236\u572860A\u4ee5\u5185\uff1b\u6697\u7ebf\u94fa\u8bbe\u7531\u4e8e\u6563\u70ed\u6027\u5f88\u5dee\uff0c\u6700\u5927\u7535\u6d41\u5e94\u63a7\u5236\u662f40A\u4ee5\u5185\u6bd4\u8f83\u7a33\u59a5\u3002
10平方毫米的铜芯电线的载流量是65安培。
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绛旓細10骞虫柟鐨勯摐绾鏈澶ц兘杩40A鍒50A鐢垫祦锛岃繖鏄甯稿伐浣滅數娴
绛旓細10骞虫柟鐨勯摐绾跨殑棰濆畾鐢垫祦鏄36瀹夊煿銆傚亣濡傛槸瀹跺涵鐢(鐢靛帇220浼)锛岄偅涔堣礋杞芥渶澶т负36脳0.22=7.92鍗冪摝銆傚鏋滄槸涓夌浉宸ヤ笟鐢ㄧ數锛岄偅涔堟渶澶ц礋鑽蜂负36脳0.22脳3=23.76鍗冪摝銆傚甫澶氬皯鍔熺巼鐨勮礋杞界湅璐熻浇鐗规с傚鏋滄槸鐢甸樆鎬ц礋杞斤紝瀹夊叏鐢垫祦姣忓钩鏂规绫7瀹夊煿锛屾瘡鐩告槸70瀹夊煿銆傚鏋滄槸鎰熸ц礋杞斤紝姣斿涓夌浉浜ゆ祦鐢垫満锛岃冭檻鍚姩鏃...
