240单芯电缆内径多大 240kw功率用多大铜芯电缆
240\u5e73\u65b9\u7535\u7f06\u76f4\u5f84 240\u7684\u7535\u7f06\u76f4\u5f84\u662f\u591a\u5927240\u5e73\u65b9\u7684\u9ad8\u538b\u7535\u7f06\u662f\u6307240\u5e73\u65b9\u6beb\u7c733.14rr=240rr=79.73\u5e73\u65b9\u6beb\u7c73r=\u6839\u53f779.73=8.74\u6beb\u7c73\u76f4\u5f84=8.74X2=17.48\u6beb\u7c73
\u8ba1\u7b97\u65b9\u6cd5\uff1a
1\u3001 \u77e5\u9053\u7535\u7ebf\u7684\u5e73\u65b9\uff0c\u8ba1\u7b97\u7535\u7ebf\u7684\u534a\u5f84\u7528\u6c42\u5706\u5f62\u9762\u79ef\u7684\u516c\u5f0f\u8ba1\u7b97\uff1a\u7535\u7ebf\u5e73\u65b9\u6570\uff08\u5e73\u65b9\u6beb\u7c73\uff09\uff1d\u5706\u5468\u7387\uff083.14\uff09\u00d7\u7535\u7ebf\u534a\u5f84\uff08\u6beb\u7c73\uff09\u7684\u5e73\u65b9
2\u3001 \u77e5\u9053\u7535\u7ebf\u7684\u76f4\u5f84\uff0c\u8ba1\u7b97\u7535\u7ebf\u7684\u5e73\u65b9\u4e5f\u7528\u6c42\u5706\u5f62\u9762\u79ef\u7684\u516c\u5f0f\u6765\u8ba1\u7b97\uff1a\u7535\u7ebf\u7684\u5e73\u65b9\uff1d\u5706\u5468\u7387\uff083.14\uff09\u00d7\u7ebf\u76f4\u5f84\u7684\u5e73\u65b9\uff0f4\u7535\u7f06\u5927\u5c0f\u4e5f\u7528\u5e73\u65b9\u6807\u79f0\uff0c\u591a\u80a1\u7ebf\u5c31\u662f\u6bcf\u6839\u5bfc\u7ebf\u622a\u9762\u79ef\u4e4b\u548c\u3002\u7535\u7f06\u622a\u9762\u79ef\u7684\u8ba1\u7b97\u516c\u5f0f\uff1a0.7854 \u00d7 \u7535\u7ebf\u534a\u5f84\uff08\u6beb\u7c73\uff09\u7684\u5e73\u65b9 \u00d7 \u80a1\u6570\u598248\u80a1\uff08\u6bcf\u80a1\u7535\u7ebf\u534a\u5f840.2\u6beb\u7c73\uff091.5\u5e73\u65b9\u7684\u7ebf\uff1a0.7854 \u00d7\uff080.2 \u00d7 0.2\uff09\u00d7 48 = 1.5\u5e73\u65b9
3\u3001\u6210\u7f06\u5916\u5f84+\u5916\u88ab\u539a\u5ea6\u6210\u7f06\u5916\u5f84\uff1aK*D 2\u82af K=23\u82af K=2.164\u82af K=2.425\u82af K=2.76\u82af K=3.07\u82af K=3.0
240KW\u8d1f\u8f7d\u81f3\u5c11\u8981\u9009\u62e9240\u5e73\u65b9\u7684\u94dc\u82af\u7535\u7ebf\u3002240\u5e73\u65b9\u7684\u94dc\u82af\u7535\u7ebf\u660e\u7ebf\u6577\u8bbe\u5b89\u5168\u622a\u6d41\u91cf\u7ea6570A\u3002
240\u5343\u74e6\u529f\u7387\u7535\u6d41\u8ba1\u7b97\uff1a
\u4e09\u76f8\uff1aP=1.732UIcos\u03c6
P\uff1a\u529f\u7387\uff1b
U\uff1a\u7535\u538b\uff1b
I\uff1a\u7535\u6d41\uff1b
cos\u03c6\uff1a\u529f\u7387\u56e0\u6570\uff0c\u7535\u963b\u8d1f\u8f7d\u53d61\uff0c\u611f\u6027\uff08\u6bd4\u5982\u7535\u673a\uff09\u8d1f\u8f7d\u53d60.85\uff1b
\u6839\u53f73=1.732\uff1b
I=P/(1.732\u00d7U\u00d7cos\u03c6)
I=240/(1.732\u00d7380V\u00d70.85)
=436A
\u6839\u636e\u7535\u7ebf\u7535\u6d41\u5bf9\u7167\u8868\uff0c240KW\u8d1f\u8f7d\u81f3\u5c11\u8981\u9009\u62e9240\u5e73\u65b9\u7684\u94dc\u82af\u7535\u7ebf\u3002240\u5e73\u65b9\u7684\u94dc\u82af\u7535\u7ebf\u660e\u7ebf\u6577\u8bbe\u5b89\u5168\u622a\u6d41\u91cf\u7ea6570A\u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u7535\u7f06\u6210\u672c\u8ba1\u7b97\u516c\u5f0f
YJV\u6210\u672c\u4ef7\u683c\u8ba1\u7b97\u516c\u5f0f
YJV\u94dc\u82af\u7535\u529b\u7535\u7f06\u7cfb\u5217\u6210\u672c\u4ef7\u683c\u516c\u5f0f\u5982\u4e0b\uff1a
\u94dc\u7684\u91cd\u91cfX\u94dc\u4ef7\u8ba1\u7b97\uff1a
\u4e1d\u5f84\u00f72=1.25X1.25X3.14
=\u5e73\u65b9\u6570X\u4e1d\u7684\u6839\u6570X0.89X\u5f53\u65f6\u94dc\u4ef7+10%\u7684\u52a0\u5de5\u8d39\u3002
\u6a61\u5957\u7535\u7f06\u7684\u6210\u672c\u4ef7\u683c\u8ba1\u7b97\u516c\u5f0f
\u5e73\u65b9X1.83=\u94dc\u7684\u91cd\u91cfX\u5f53\u65f6\u7684\u94dc\u4ef7+\u6a61\u80f6\u7684\u4ef7\u683c\uff08\u91cd\u91cfX0.4\u5143/\u65a4\uff09=\u6210\u672c\u4ef7\u683c+10%\u7684\u52a0\u5de5\u8d39
\u7535\u7f06\u7684\u4ef7\u683c=\u5236\u9020\u6750\u6599\u6210\u672c+\u56fa\u5b9a\u8d39\u7528+\u7a0e\u6536+\u4e1a\u52a1\u8d39+\u5229\u6da6
\u5236\u9020\u6750\u6599\u6210\u672c=\u6750\u6599\u6210\u672c*\uff081+\u6750\u6599\u6d88\u8017\uff09\uff08\u6750\u6599\u6210\u672c\u5373\u4e3a\u7406\u8bba\u8ba1\u7b97\u51fa\u6765\u7684\u503c\uff09
\u56fa\u5b9a\u8d39\u7528\u6839\u636e\u5404\u4e2a\u516c\u53f8\u7684\u60c5\u51b5\u6709\u6240\u4e0d\u540c\uff0c\u4e00\u822c\u5305\u62ec\u751f\u4ea7\u5de5\u8d44\u3001\u7ba1\u7406\u5de5\u8d44\u3001\u6c34\u7535\u8d39\u3001\u4fee\u7406\u8d39\u3001\u6298\u65e7\u8d39\u3001\u623f\u79df\u8d39\u3001\u8fd0\u8f93\u8d39\u7528
\u8f7d\u6d41\u91cf\u8ba1\u7b97\u516c\u5f0f
\u4f30\u7b97\u53e3\u8bc0
\u4e8c\u70b9\u4e94\u4e0b\u4e58\u4ee5\u4e5d\uff0c\u5f80\u4e0a\u51cf\u4e00\u987a\u53f7\u8d70\u3002
\u4e09\u5341\u4e94\u4e58\u4e09\u70b9\u4e94\uff0c\u53cc\u53cc\u6210\u7ec4\u51cf\u70b9\u4e94\u3002
\u6761\u4ef6\u6709\u53d8\u52a0\u6298\u7b97\uff0c\u9ad8\u6e29\u4e5d\u6298\u94dc\u5347\u7ea7\u3002
\u7a7f\u7ba1\u6839\u6570\u4e8c\u4e09\u56db\uff0c\u516b\u4e03\u516d\u6298\u6ee1\u8f7d\u6d41\u3002
\u8bf4\u660e\uff1a\u672c\u8282\u53e3\u8bc0\u5bf9\u5404\u79cd\u7edd\u7f18\u7ebf\uff08\u6a61\u76ae\u548c\u5851\u6599\u7edd\u7f18\u7ebf\uff09\u7684\u8f7d\u6d41\u91cf\uff08\u5b89\u5168\u7535\u6d41\uff09\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\u88685 3\u53ef\u4ee5\u770b\u51fa\uff1a\u500d\u6570\u968f\u622a\u9762\u7684\u589e\u5927\u800c\u51cf\u5c0f\u3002
\u4e8c\u70b9\u4e94\u4e0b\u4e58\u4ee5\u4e5d\uff0c\u5f80\u4e0a\u51cf\u4e00\u987a\u53f7\u8d70
\u201c\u4e8c\u70b9\u4e94\u4e0b\u4e58\u4ee5\u4e5d\uff0c\u5f80\u4e0a\u51cf\u4e00\u987a\u53f7\u8d70\u201d\u8bf4\u7684\u662f2\uff0e5mm\u2019\u53ca\u4ee5\u4e0b\u7684\u5404\u79cd\u622a\u9762\u94dd\u82af\u7edd\u7f18\u7ebf\uff0c\u5176\u8f7d\u6d41\u91cf\u7ea6\u4e3a\u622a\u9762\u6570\u76849\u500d\u3002\u59822\uff0e5mm\u2019\u5bfc\u7ebf\uff0c\u8f7d\u6d41\u91cf\u4e3a2\uff0e5\u00d79=22\uff0e5(A\uff09\u3002\u4ece4mm\u2019\u53ca\u4ee5\u4e0a\u5bfc\u7ebf\u7684\u8f7d\u6d41\u91cf\u548c\u622a\u9762\u6570\u7684\u500d\u6570\u5173\u7cfb\u662f\u987a\u7740\u7ebf\u53f7\u5f80\u4e0a\u6392\uff0c\u500d\u6570\u9010\u6b21\u51cfl\uff0c\u53734\u00d78\u30016\u00d77\u300110\u00d76\u300116\u00d75\u300125\u00d74\u3002
\u4e09\u5341\u4e94\u4e58\u4e09\u70b9\u4e94\uff0c\u53cc\u53cc\u6210\u7ec4\u51cf\u70b9\u4e94\u3002
\u201c\u4e09\u5341\u4e94\u4e58\u4e09\u70b9\u4e94\uff0c\u53cc\u53cc\u6210\u7ec4\u51cf\u70b9\u4e94\u201d\uff0c\u8bf4\u7684\u662f35mm\u201d\u7684\u5bfc\u7ebf\u8f7d\u6d41\u91cf\u4e3a\u622a\u9762\u6570\u76843\uff0e5\u500d\uff0c\u537335\u00d73\uff0e5=122\uff0e5(A\uff09\u3002\u4ece50mm\u2019\u53ca\u4ee5\u4e0a\u7684\u5bfc\u7ebf\uff0c\u5176\u8f7d\u6d41\u91cf\u4e0e\u622a\u9762\u6570\u4e4b\u95f4\u7684\u500d\u6570\u5173\u7cfb\u53d8\u4e3a\u4e24\u4e2a\u4e24\u4e2a\u7ebf\u53f7\u6210\u4e00\u7ec4\uff0c\u500d\u6570\u4f9d\u6b21\u51cf0\uff0e5\u3002
\u537350\u300170mm\u2019\u5bfc\u7ebf\u7684\u8f7d\u6d41\u91cf\u4e3a\u622a\u9762\u6570\u76843\u500d\uff1b95\u3001120mm\u201d\u5bfc\u7ebf\u8f7d\u6d41\u91cf\u662f\u5176\u622a\u9762\u79ef\u6570\u76842\uff0e5\u500d\uff0c\u4f9d\u6b21\u7c7b\u63a8\u3002
\u6761\u4ef6\u6709\u53d8\u52a0\u6298\u7b97\uff0c\u9ad8\u6e29\u4e5d\u6298\u94dc\u5347\u7ea7\u3002
\u201c\u6761\u4ef6\u6709\u53d8\u52a0\u6298\u7b97\uff0c\u9ad8\u6e29\u4e5d\u6298\u94dc\u5347\u7ea7\u201d\u3002\u4e0a\u8ff0\u53e3\u8bc0\u662f\u94dd\u82af\u7edd\u7f18\u7ebf\u3001\u660e\u6577\u5728\u73af\u5883\u6e29\u5ea625\u2103\u7684\u6761\u4ef6\u4e0b\u800c\u5b9a\u7684\u3002\u82e5\u94dd\u82af\u7edd\u7f18\u7ebf\u660e\u6577\u5728\u73af\u5883\u6e29\u5ea6\u957f\u671f\u9ad8\u4e8e25\u2103\u7684\u5730\u533a\uff0c\u5bfc\u7ebf\u8f7d\u6d41\u91cf\u53ef\u6309\u4e0a\u8ff0\u53e3\u8bc0\u8ba1\u7b97\u65b9\u6cd5\u7b97\u51fa\uff0c\u7136\u540e\u518d\u6253\u4e5d\u6298\u5373\u53ef\u3002
\u5f53\u4f7f\u7528\u7684\u4e0d\u662f\u94dd\u7ebf\u800c\u662f\u94dc\u82af\u7edd\u7f18\u7ebf\uff0c\u5b83\u7684\u8f7d\u6d41\u91cf\u8981\u6bd4\u540c\u89c4\u683c\u94dd\u7ebf\u7565\u5927\u4e00\u4e9b\uff0c\u53ef\u6309\u4e0a\u8ff0\u53e3\u8bc0\u65b9\u6cd5\u7b97\u51fa\u6bd4\u94dd\u7ebf\u52a0\u5927\u4e00\u4e2a\u7ebf\u53f7\u7684\u8f7d\u6d41\u91cf\u3002\u598216mm\u2019\u94dc\u7ebf\u7684\u8f7d\u6d41\u91cf\uff0c\u53ef\u630925mm2\u94dd\u7ebf\u8ba1\u7b97\u3002
\u7a7f\u7ba1\u6839\u6570\u4e8c\u4e09\u56db\uff0c\u516b\u4e03\u516d\u6298\u6ee1\u8f7d\u6d41\u3002
\u201c \u7a7f\u7ba1\u6839\u6570\u4e8c\u4e09\u56db\uff0c\u516b\u4e03\u516d\u6298\u6ee1\u8f7d\u6d41\u201d\u7a7f\u7ba1\u6577\u8bbe\u4e24\u6839\u3001\u4e09\u6839\u3001\u56db\u6839\u7535\u7ebf\u7684\u60c5\u51b5\u4e0b\uff0c\u5176\u8f7d\u6d41\u91cf\u5206\u522b\u662f\u7535\u5de5\u53e3\u51b3\u8ba1\u7b97\u8f7d\u6d41\u91cf\uff08\u5355\u6839\u6577\u8bbe\uff09\u768480%\u300170%\u300160%\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1--\u7535\u529b\u989d\u5b9a\u529f\u7387
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1--\u7535\u7ebf\u7535\u7f06
根据公式S=0.25*πD² 可以计算得到直径D=17.5mm
可以查标准电缆数据表
直径D=17.5mm
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绛旓細鍙互鍦℅B/T5023-2008鏍囧噯涓煡鐪嬶細60227 IEC 05(BV) 0.5 閾0.80mm锛岀粷缂0.6mm锛屽寰2.0mm;60227 IEC 05(BV) 0.75 閾0.97mm锛岀粷缂0.6mm锛屽寰2.2mm;60227 IEC 05(BV) 1 閾1.13mm锛岀粷缂0.6mm锛屽寰2.4mm;60227 IEC 06(RV) 0.5 閾28/0.15mm锛岀粷缂0.6mm锛屽寰2.1mm;60227 IEC...
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绛旓細PVC鐢电嚎绠℃槸涓绉嶅父鐢ㄤ簬鐢垫皵宸ョ▼涓殑绠￠亾锛屽畠鍙互淇濇姢鐢电嚎鍜鐢电紗锛岄槻姝㈠畠浠彈鍒版崯鍧忋侾VC鐢电嚎绠″叿鏈夎愰吀纰便佽愯厫铓銆侀樆鐕冦佺粷缂樼瓑鐗圭偣锛屽洜姝よ骞挎硾搴旂敤浜庡缓绛戙佸伐涓氥佷氦閫氥佺數鍔涚瓑棰嗗煙銆傚湪鏈枃涓紝鎴戜滑灏嗕粙缁峆VC鐢电嚎绠＄殑瑙勬牸锛屽寘鎷灏哄銆侀鑹插拰搴旂敤鍦烘櫙绛夈傚昂瀵 PVC鐢电嚎绠＄殑灏哄閫氬父鐢鍐呭緞鍜屽寰勪袱涓弬鏁版潵...
绛旓細鏈澶鍐呭緞涓240mm锛屽鏋鐢电紗澶栧緞姣旇緝澶э紝鍙互鐢ㄤ袱鍙板苟鑱斾娇鐢ㄣ
绛旓細鐢240骞虫柟绱摐绠″杩涗袱鏍瑰鎾炲嚭鍘嬫帴
