三相25平方铜能带多少干瓦，装多大空？ 25平方三相五线铜线可以带多少个干瓦注我要装18台1千瓦的2...
\u4e09\u76f825\u5e73\u65b9\u591a\u5fc3\u94dc\u7ebf\u80fd\u5e26\u591a\u5c11\u74e6\u4e09\u76f825\u5e73\u65b9\u591a\u5fc3\u94dc\u7ebf\u80fd\u5e2663\u5343\u74e6\u3002
\u8ba1\u7b97\u65b9\u6cd5\u5982\u4e0b\uff1a
\u56e0\u4e3a25\u5e73\u65b9\u6beb\u7c73\u94dc\u7535\u6e90\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\u4e3a120A\u3002
\u6240\u4ee5\u5176\u53ef\u5e26\u7684\u529f\u7387\u4e3aP=1.732*380*120*0.8=63KW\u3002
\u5404\u578b\u53f7\u7684\u5355\u82af\u94dc\u7ebf\u6240\u5e26\u7535\u6d41\u7684\u503c\u5982\u4e0b\u6240\u793a\uff1a
2.5\u5e73\u65b9\u6beb\u7c73\u94dc\u7535\u6e90\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\uff0d\uff0d28A\u3002
4\u5e73\u65b9\u6beb\u7c73\u94dc\u7535\u6e90\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\uff0d\uff0d\uff0d35A\u3002
6\u5e73\u65b9\u6beb\u7c73\u94dc\u7535\u6e90\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\uff0d\uff0d\uff0d48A\u3002
10\u5e73\u65b9\u6beb\u7c73\u94dc\u7535\u6e90\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\uff0d\uff0d\uff0d65A\u3002
16\u5e73\u65b9\u6beb\u7c73\u94dc\u7535\u6e90\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\uff0d\uff0d\uff0d91A\u3002
25\u5e73\u65b9\u6beb\u7c73\u94dc\u7535\u6e90\u7ebf\u7684\u5b89\u5168\u8f7d\u6d41\u91cf\uff0d\uff0d\uff0d120A\u3002
18\u53f01\u5343\u74e6\u7684220v\u7a7a\u8c03\uff0c\u5c31\u662f18kW\u3002\u6b63\u5e38\u5de5\u4f5c\u7535\u6d41\u4e3aI=P/U=18000\u00f7220=82A
4\u53f02\u5343\u74e6380v\u7684\u7a7a\u8c03,\u5c31\u662f8kW\u3002I=P/U=8000\u00f7\uff08380\u00d71.732\u00d70.8\uff09=16A
\u52a0\u6266\u5ea7\u5927\u69825\u5343\u74e6\uff0c\u7535\u6d41\u5927\u7ea6\u4e3a\uff1aI=P/U=5000\u00f7220=23A
\u603b\u7535\u6d41\u4e3a\uff1a82+16+23=121A
\u4e0d\u8003\u8651\u6577\u8bbe\u65b9\u5f0f\u3001\u4f7f\u7528\u73af\u5883\u7b49\u56e0\u7d20\uff0c25\u5e73\u65b9\u4e09\u76f8\u4e94\u7ebf\u94dc\u7ebf\u7684\u8f7d\u6d41\u91cf\u4e3a100A
\u53ef\u89c1\uff0c\u4e0d\u59a5\uff01
能带50千瓦，装100A空开。
绛旓細鍗曠浉鐢靛彲鎵垮彈26.4鍗冪摝锛屼笁鐩鐢靛彲鎵垮彈63.18鍗冪摝銆25骞虫柟閾鑺數绾跨殑瀹夊叏杞芥祦閲忔槸120A锛屽湪鍗曠浉鐢典腑锛屾牴鎹叕寮弍=UI璁＄畻锛220脳120=26400w=26.4鍗冪摝銆傚湪涓夌浉鐢典腑锛屾牴鎹叕寮廝=1.732UIcos蠁锛宑os蠁涓鑸彇0.8锛1.732脳380脳120脳0.8=63183.36w鈮63.18鍗冪摝銆傜數绾垮湪瀹為檯浣跨敤杩囩▼涓叾鍔熺巼浼氬瓨鍦ㄤ竴瀹...
绛旓細25骞虫柟鍥芥爣閾滆姱绾裤備竴骞虫柟鐢电嚎閫氳繃鏈澶х數娴佺害6A鐢垫祦鎵垮彈鏈澶у姛鐜囩害涓1300W锛岄偅涔20KW鐢垫祦鍦100A浠ヤ笂锛岀數绾胯嚦灏戝湪20骞虫柟浠ヤ笂銆涓夌浉锛100000/380/1.732/0.85=179锛圓锛夛紝闇瑕佺數缂嗘埅闈50骞虫柟鐨勯摐缂嗐傞摐鑺嚎鐨勮鏍兼湁1骞虫柟銆1.5骞虫柟銆2.5骞虫柟銆4骞虫柟銆6骞虫柟銆10骞虫柟銆16骞虫柟銆25骞虫柟銆35骞虫柟銆50骞虫柟...
绛旓細25骞虫柟閾绾垮湪涓嶅悓鐨勭數鍘嬫潯浠朵笅锛屽彲浠ユ壙杞界殑鍔熺巼鏈夋墍涓嶅悓銆傚湪鍗曠浉鐢220浼忕殑鏉′欢涓嬶紝25骞虫柟閾滅嚎鍙互鎵胯浇鐨勬渶澶у姛鐜囦负31鍗冪摝銆傝繖鏄氳繃鍔熺巼鍏紡P=UI锛堝叾涓璓浠ｈ〃鍔熺巼锛孶浠ｈ〃鐢靛帇锛孖浠ｈ〃鐢垫祦锛夎绠楀緱鍑虹殑锛屽嵆220浼忎箻浠142瀹夛紙25骞虫柟閾滅嚎鐨勮浇娴侀噺锛夌瓑浜31240鐡︼紝鎹㈢畻鎴愬崈鐡﹀嵆涓31鍗冪摝銆傝屽湪涓夌浉鐢380浼忕殑...
绛旓細涓鑸潵璇达紝25骞虫柟閾鑺數缂嗗崟鐩哥數鍙壙鍙26.4鍗冪摝锛屼笁鐩鐢靛彲鎵垮彈63.18鍗冪摝銆25骞虫柟閾滆姱鐢电嚎鐨勫畨鍏ㄨ浇娴侀噺鏄120A锛屽湪鍗曠浉鐢典腑锛屾牴鎹叕寮弍=UI璁＄畻锛220脳120=26400w=26.4鍗冪摝銆傚湪涓夌浉鐢典腑锛屾牴鎹叕寮廝=1.732UIcos蠁锛宑os蠁涓鑸彇0.8锛1.732脳380脳120脳0.8=63183.36w鈮63.18鍗冪摝銆傜數缂嗛夋嫨鐨...
绛旓細绾19kw銆傛帹瀵艰繃绋嬪涓嬶細鍏堣璇撮摐绾挎墍閫氳繃鐨勭數娴侊紝姝ｅ父鎯呭喌涓1骞虫柟姣背閾滅嚎鑳介氳繃鐢垫祦鏄6a锛岋紙鍥犱负鐜板湪鐨勯摐鐢电紗璐ㄩ噺涓嶆暍鎭淮锛屽缓璁彇1骞虫柟姣背閾滅嚎閫氳繃5a鐨勭數娴侊級閭ｄ箞浠ユ鏁板艰绠6骞虫柟姣背閾滅嚎閫氳繃鐨勫父鎬佺數娴佹槸36a銆涓夌浉380v鐢靛姩鏈簆=1.732*u*i*cos蠁璁＄畻鍑虹數娴佸硷紝鍏朵腑鍔熺巼鍥犳暟cos蠁鍙栧0.8銆俻=1.732...
绛旓細25骞虫柟涓夌浉鍥涚嚎閾滅嚎锛岃兘鎵垮彈63鍗冪摝.鐢变笁鐩哥數鏈哄叕寮忓緱锛歅=1.732UIcos桅 鎵浠ュ姛鐜嘝=1.732*0.38*0.8*105=63鍗冪摝锛cos桅涓0.8锛屾煡鐢电紗鎵嬪唽YJV鐭ワ紝25骞虫柟涓夌浉鍥涚嚎閾滅嚎鎵胯浇鐢垫祦涓105A锛岀數鍘嬩负380V銆傛牴鎹數娴105A锛屽姛鐜囦负63鍗冪摝鍦ㄦ甯歌寖鍥翠箣鍐呫
绛旓細鍗曠浉鐢垫儏鍐典笅锛25骞虫柟閾鑺數缂嗗彲鎵垮彈鐨勬渶澶у姛鐜囦负26.4鍗冪摝銆傞氳繃鍏紡 P=UI 璁＄畻锛屽綋鐢垫祦涓120瀹夊煿锛岀數鍘嬩负220浼忕壒鏃讹紝寰楀嚭26.4鍗冪摝鐨勫姛鐜囧笺傝屽湪涓夌浉鐢垫儏鍐典笅锛屾渶澶у姛鐜囦负63.18鍗冪摝銆備娇鐢ㄥ叕寮 P=1.732UIcos蠁 璁＄畻锛屽叾涓姛鐜囧洜鏁 cos蠁 鍙0.8锛岀數娴佷负120瀹夊煿锛岀數鍘嬩负380浼忕壒鏃讹紝寰楀嚭63.18...
绛旓細25骞虫柟姣背鐨勯摐绾鑳藉鎵垮彈鐨勫姛鐜囧彇鍐充簬澶氱鍥犵礌锛屽寘鎷數绾挎墍鍦ㄧ殑鐜銆佹俯搴︺佹暦璁炬柟寮忎互鍙婃槸鍚﹂噰鍙栦簡閫傚綋鐨勪繚鎶ゆ帾鏂姐傚浜庡崟鐩220V绯荤粺锛25骞虫柟姣背鐨勯摐绾块氬父鍙互瀹夊叏鎵胯浇绾6.4鍗冪摝鐨勫姛鐜囥傝屽湪涓夌浉380V绯荤粺涓紝鐩稿悓瑙勬牸鐨勯摐绾垮彲鑳芥壙杞介珮杈63鍗冪摝鐨勫姛鐜囥傝绮剧‘璁＄畻閾滅嚎鑳藉甫澶氬皯鍗冪摝鐨勮礋杞斤紝闇瑕佷緷鎹畨鍏ㄨ浇娴侀噺...
绛旓細35骞虫柟姣背鐨勯摐绾涔樹互3.5锛屾垚瀵硅绠楁椂鍑忓幓0.5銆傚鏋滄潯浠舵湁鎵涓嶅悓锛岄渶瑕佽繘琛岄傚綋鐨勪慨姝ｃ傚湪楂樻俯鐜涓嬶紝閾滅嚎鐨勮浇娴佽兘鍔涗細闄嶄綆鑷冲師鏉ョ殑90%銆傚綋閾滅嚎绌胯繃绠￠亾鏃讹紝鍏惰浇娴佽兘鍔涗細鏍规嵁绠￠亾鐨勬暟閲忔寜鐓87.6%鐨勬瘮渚嬪噺灏戙25骞虫柟姣背鐨勯摐绾垮湪鏄庣嚎鏁疯涓旀病鏈夌粷缂樺眰鐨勬儏鍐典笅锛屽叾瀹夊叏杞芥祦鑳藉姏澶х害涓126瀹夊煿銆涓夌浉鍔熺巼...
绛旓細涓夌浉锛夋垨6.6鍗冪摝锛堝崟鐩革級鏃讹紝鍙夋嫨32A鐨勭┖寮銆傝嚦浜庣嚎鏉愮殑鐩村緞锛25骞虫柟鐨勯摐绾鐩村緞绾︿负5.64mm锛屾瘮绛峰瓙绋嶇矖锛屾瘮鍗风儫绋嶇粏銆傝繖璇存槑25骞虫柟閾滅嚎鍦ㄤ繚鎸佽冻澶熷己搴︾殑鍚屾椂锛屼篃鏈変竴瀹氱殑鐏垫椿鎬с傛荤殑鏉ヨ锛25骞虫柟閾绾垮洜鍏舵ц兘鍜岄傜敤鎬э紝鑳芥弧瓒冲绉嶇數姘旈渶姹傦紝璐拱鏃堕渶鏍规嵁瀹為檯闇瑕佸拰瑙勬牸閫夋嫨鍚堥傜殑鍨嬪彿銆
