请问电线1平方到6平方线径是多亳米? 6平方米的电线有多粗,直径是多少,怎么算得
6\u5e73\u65b9\u7535\u7ebf\u76f4\u5f84\u662f\u591a\u5c11\uff1f6\u5e73\u65b9\u7535\u7ebf\u76f4\u5f84\u662f2.7646mm\u3002
6\u5e73\u65b9\u7535\u7ebf\u7684\u6a2a\u622a\u9762\u79ef\u4e3a6\u5e73\u65b9\u6beb\u7c73\u3002\u518d\u6839\u636e\u7535\u7ebf\u7684\u6a2a\u622a\u9762\u662f\u5706\uff0c\u6839\u636e\u5706\u7684\u9762\u79ef\u8ba1\u7b97\u516c\u5f0f\u53ef\u5f97\uff1a
6mm²=\u03c0r²\u3002\u89e3\u5f97r=1.3823mm\u3002\u5373\u5706\u7684\u534a\u5f84\u4e3a1.3823mm\uff0c\u8fdb\u800c\u53ef\u5f97\uff1a1.3823mm\u00d72=2.7646mm\u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u7535\u7ebf\u7684\u5e73\u65b9\u53ef\u4ee5\u7528\u7535\u7ebf\u7684\u76f4\u5f84\u6d4b\u91cf\u8ba1\u7b97\uff0c\u56e0\u4e3a\u7535\u7ebf\u76f4\u5f84\u8f83\u597d\u6d4b\u91cf\uff0c\u516c\u5f0f\u662fS=3.14d/4\uff1bd\u662f\u76f4\u5f84\u3002
\u8f7d\u7535\u91cf\u6709\u4f30\u7b97\u516c\u5f0f\uff1a\u5341\u4e0b\u4e94\uff1b\u767e\u4e0a\u4e8c\uff1b\u4e8c\u4e94\u4e09\u4e94\u56db\u4e09\u754c\uff1b\u4e03\u96f6\u4e5d\u4e94\u4e24\u500d\u534a;\u7a7f\u7ba1\u6e29\u5ea6\u516b\u4e5d\u6298;\u94dc\u7ebf\u5347\u7ea7\u7b97\uff1b\u88f8\u7ebf\u52a0\u4e00\u534a\u3002
\u7535\u7f06\u622a\u9762\u79ef\u7684\u8ba1\u7b97\u516c\u5f0f\uff1a 0.7854 \u00d7 \u7535\u7ebf\u534a\u5f84\uff08\u6beb\u7c73\uff09\u7684\u5e73\u65b9 \u00d7 \u80a1\u6570\uff0c\u598248\u80a1\uff08\u6bcf\u80a1\u7535\u7ebf\u534a\u5f840.2\u6beb\u7c73\uff091.5\u5e73\u65b9\u7684\u7ebf\uff1a 0.7854 \u00d7\uff080.2 \u00d7 0.2\uff09\u00d7 48 = 1.5\u5e73\u65b9\u3002
\u4e0e\u5706\u76f8\u5173\u7684\u516c\u5f0f\uff1a
1\u3001\u5706\u9762\u79ef\uff1aS=\u03c0r²\uff0cS=\u03c0(d/2)²\u3002\uff08d\u4e3a\u76f4\u5f84\uff0cr\u4e3a\u534a\u5f84\uff09\u3002
2\u3001\u534a\u5706\u7684\u9762\u79ef\uff1aS\u534a\u5706=(\u03c0r^2)/2\u3002\uff08r\u4e3a\u534a\u5f84\uff09\u3002
3\u3001\u5706\u73af\u9762\u79ef\uff1aS\u5927\u5706-S\u5c0f\u5706=\u03c0(R^2-r^2)(R\u4e3a\u5927\u5706\u534a\u5f84\uff0cr\u4e3a\u5c0f\u5706\u534a\u5f84)\u3002
4\u3001\u5706\u7684\u5468\u957f\uff1aC=2\u03c0r\u6216c=\u03c0d\u3002\uff08d\u4e3a\u76f4\u5f84\uff0cr\u4e3a\u534a\u5f84\uff09\u3002
5\u3001\u534a\u5706\u7684\u5468\u957f\uff1ad+(\u03c0d)/2\u6216\u8005d+\u03c0r\u3002\uff08d\u4e3a\u76f4\u5f84\uff0cr\u4e3a\u534a\u5f84\uff09\u3002
什么型号的电线?型号不同,标准不同。
常见的家装BV电线的外径标准如下图。
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