2.5平方的国标电线直径是多少 国标2.5平方电线的直径是多少
2.5\u5e73\u65b9\u7684\u56fd\u6807\u7535\u7ebf\u76f4\u5f84\u662f\u591a\u5c11\u56fd\u6807\u7535\u7ebf\u4e00\u822c\u8981\u6c42\u76f4\u6d41\u7535\u963b\u7b26\u5408\u6807\u51c6\u8981\u6c42\uff0c\u5b9e\u9645\u5916\u5f84\u8fbe\u52301.75mm\u5c31\u80fd\u7b26\u5408\u56fd\u6807\u76f4\u6d41\u7535\u963b\u8981\u6c42\u3002
\u56fd\u6807\u7535\u7ebf\uff1a\u5c31\u662f\u5b8c\u5168\u6309\u7167\u56fd\u6807\u6765\u751f\u4ea7\u7684\u7535\u7ebf\u3002\u4e00\u822c\u5bb6\u7528\u3001\u5e38\u89c1\u7684\u7535\u7ebf\u90fd\u662f\u56fd\u5bb6\u6807\u51c6\u89c4\u683c\u6027\u80fd\u7684\uff0c\u56fd\u6807\u5728\u7535\u7ebf\u7684\u5916\u89c2\u6807\u51c6\u3001\u673a\u68b0\u5f3a\u5ea6\u3001\u62a4\u5957\u7684\u7edd\u7f18\u3001\u7ebf\u963b\u3001\u9ad8\u4f4e\u6e29\u51b2\u51fb\u7b49\u65b9\u9762\u6709\u5177\u4f53\u7684\u89c4\u5b9a\u3002
\u5e73\u65b9\uff1a\u6307\u7535\u7ebf\u7684\u6a2a\u622a\u9762\u79ef\uff0c\u4e00\u822c\u5355\u4f4d\u662f\u5e73\u65b9\u6beb\u7c73\u3002
\u6839\u636e\u5706\u9762\u79ef\u7684\u8ba1\u7b97\u516c\u5f0f\uff0c\u03c0r²=2.5
r²=2.5/3.14=0.7962
r=\u221a0.7962=0.8925
2r=1.785
2.5\u5e73\u65b9\u7684\u56fd\u6807\u7535\u7ebf\u76f4\u5f84\u662f1.785\u6beb\u7c73
\u6269\u5c55\u8d44\u6599\uff1a
\u56fd\u6807\u7ebf\u4f18\u7b49\u54c1\u662f100\u00b10.5\u7c73/\u5377
\u975e\u6807\u7ebf\u6709\u7684\u53ea\u670960-75\u7c73/\u5377
1\u3001\u8981\u770b
\u770b\u6709\u65e0\u8d28\u91cf\u4f53\u7cfb\u8ba4\u8bc1\u4e66\uff1b\u770b\u5408\u683c\u8bc1\u662f\u5426\u89c4\u8303\uff1b\u770b\u6709\u65e0\u5382\u540d\u3001\u5382\u5740\u3001\u68c0\u9a8c\u7ae0\u3001\u751f\u4ea7\u65e5\u671f\uff1b\u770b\u7535\u7ebf\u4e0a\u662f\u5426\u5370\u6709\u5546\u6807\u3001\u89c4\u683c\u3001\u7535\u538b\u7b49\u3002\u8fd8\u8981\u770b\u7535\u7ebf\u94dc\u82af\u7684\u6a2a\u65ad\u9762\uff0c\u4f18\u7b49\u54c1\u7d2b\u94dc\u989c\u8272\u5149\u4eae\u3001\u8272\u6cfd\u67d4\u548c\uff0c\u5426\u5219\u4fbf\u662f\u6b21\u54c1\u3002
2\u3001\u8981\u8bd5
\u53ef\u53d6\u4e00\u6839\u7535\u7ebf\u5934\u7528\u624b\u53cd\u590d\u5f2f\u66f2\uff0c\u51e1\u662f\u624b\u611f\u67d4\u8f6f\u3001\u6297\u75b2\u52b3\u5f3a\u5ea6\u597d\u3001\u5851\u6599\u6216\u6a61\u80f6\u624b\u611f\u5f39\u6027\u5927\u4e14\u7535\u7ebf\u7edd\u7f18\u4f53\u4e0a\u65e0\u88c2\u75d5\u7684\u5c31\u662f\u4f18\u7b49\u54c1\u3002
3\u3001\u79f0\u91cd\u91cf
\u8d28\u91cf\u597d\u7684\u7535\u7ebf\uff0c\u4e00\u822c\u90fd\u5728\u89c4\u5b9a\u7684\u91cd\u91cf\u8303\u56f4\u5185\u3002\u5982\u5e38\u7528\u7684\u622a\u9762\u79ef\u4e3a1\uff0e5 mm2\u7684\u5851\u6599\u7edd\u7f18\u5355\u80a1\u94dc\u82af\u7ebf\uff0c\u6bcf100 m\u91cd\u91cf\u4e3a1.8\uff5e1.9 kg\uff1b2\uff0e5 mm2\u7684\u5851\u6599\u7edd\u7f18\u5355\u80a1\u94dc\u82af\u7ebf\uff0c\u6bcf100 m\u91cd\u91cf\u4e3a3\uff5e3.1 kg\uff1b4\uff0e0 mm2\u7684\u5851\u6599\u7edd\u7f18\u5355\u80a1\u94dc\u82af\u7ebf\uff0c\u6bcf100 m\u91cd\u91cf\u4e3a4.4\uff5e4.6 kg\u7b49\u3002\u8d28\u91cf\u5dee\u7684\u7535\u7ebf\u91cd\u91cf\u4e0d\u8db3\uff0c\u8981\u4e48\u957f\u5ea6\u4e0d\u591f\uff0c\u8981\u4e48\u7535\u7ebf\u94dc\u82af\u6742\u8d28\u8fc7\u591a\u3002
4\u3001\u770b\u94dc\u8d28
\u5408\u683c\u7684\u94dc\u82af\u7535\u7ebf\u94dc\u82af\u5e94\u8be5\u662f\u7d2b\u7ea2\u8272\u3001\u6709\u5149\u6cfd\u3001\u624b\u611f\u8f6f\u3002\u800c\u4f2a\u52a3\u7684\u94dc\u82af\u7ebf\u94dc\u82af\u4e3a\u7d2b\u9ed1\u8272\u3001\u504f\u9ec4\u6216\u504f\u767d\uff0c\u6742\u8d28\u591a\uff0c\u673a\u68b0\u5f3a\u5ea6\u5dee\uff0c\u97e7\u6027\u4e0d\u4f73\uff0c\u7a0d\u7528\u529b\u5373\u4f1a\u6298\u65ad\uff0c\u800c\u4e14\u7535\u7ebf\u5185\u5e38\u6709\u65ad\u7ebf\u73b0\u8c61\u3002\u68c0\u67e5\u65f6\uff0c\u4f60\u53ea\u8981\u628a\u7535\u7ebf\u4e00\u5934\u5265\u5f002 cm\uff0c\u7136\u540e\u7528\u4e00\u5f20\u767d\u7eb8\u5728\u94dc\u82af\u4e0a\u7a0d\u5fae\u6413\u4e00\u4e0b\uff0c\u5982\u679c\u767d\u7eb8\u4e0a\u6709\u9ed1\u8272\u7269\u8d28\uff0c\u8bf4\u660e\u94dc\u82af\u91cc\u6742\u8d28\u6bd4\u8f83\u591a\u3002\u53e6\u5916\uff0c\u4f2a\u52a3\u7535\u7ebf\u7edd\u7f18\u5c42\u770b\u4e0a\u53bb\u4f3c\u4e4e\u5f88\u539a\u5b9e\uff0c\u5b9e\u9645\u4e0a\u5927\u591a\u662f\u7528\u518d\u751f\u5851\u6599\u5236\u6210\u7684\uff0c\u65f6\u95f4\u4e00\u957f\uff0c\u7edd\u7f18\u5c42\u4f1a\u8001\u5316\u800c\u6f0f\u7535\u3002
5\u3001\u770b\u4ef7\u683c
\u7531\u4e8e\u5047\u5192\u4f2a\u52a3\u7535\u7ebf\u7684\u5236\u4f5c\u6210\u672c\u4f4e\uff0c\u56e0\u6b64\uff0c\u5546\u8d29\u5728\u9500\u552e\u65f6\uff0c\u5e38\u4ee5\u4ef7\u5ec9\u7269\u7f8e\u4e3a\u5e4c\u5b50\u4f4e\u4ef7\u9500\u552e\uff0c\u4f7f\u4eba\u4e0a\u5f53\u3002
\u4e00\u822c\u56fd\u6807\u76842.5\u5e73\u65b9\u7535\u7ebf \u7ebf\u82af\u76f4\u5f84\u662f1.78 \u5de6\u53f30.2\u6beb\u7c73\u90fd\u662f\u5c5e\u4e8e\u56fd\u6807\u7684\uff0c\u6709\u4ec0\u4e48\u53ef\u4ee5\u7ee7\u7eed\u8be2\u95ee
2.5平方国标线，计算直经是：
√2.5÷3.14 ×2=1.784mm
2.5平方的国标电线导体直径1.78mm，绝缘直径约3.1mm
1.8毫米，
绛旓細2.5骞虫柟鐨鏄1.78 姣背锛4骞虫柟鐨勬槸2.25 姣背锛6骞虫柟鐨勬槸2.76 姣背銆傛崲绠楀叕寮忥細鐩村緞涓鎴潰闈㈢Н闄や互鍦嗗懆鐜(3.14)鍐嶅紑鏂,鍐嶄箻浠2銆傜數缂嗚鏍煎氨鏄鐢电嚎鐢电紗鐨勮姱鏁板拰鎴潰灏哄鐨勮〃绀烘硶鐨勫惈涔夈傜數鍔涚郴缁熼噰鐢ㄧ殑鐢电嚎鐢电紗浜у搧涓昏鏈夋灦绌鸿８鐢电嚎銆佹眹娴佹帓(姣嶇嚎)銆佺數鍔涚數缂(濉戞枡绾跨紗銆佹补绾稿姏缂(鍩烘湰琚鏂欑數鍔涚數缂...
绛旓細涓鑸鍥芥爣鐨2.5骞虫柟鐢电嚎 绾胯姱鐩村緞鏄1.78 宸﹀彸0.2姣背閮芥槸灞炰簬鍥芥爣鐨勶紝鏈変粈涔堝彲浠ョ户缁闂
绛旓細濡傦細 2.5鏂圭數绾跨殑绾鐩村緞鏄锛2.5梅 3.14 = 0.8锛屽啀寮鏂瑰緱鍑0.9姣背锛屽洜姝2.5鏂圭嚎鐨勭嚎鐩村緞鏄細2脳0.9姣背锛1.8姣背銆 鐭ラ亾鐢电嚎鐨勭洿寰勶紝璁＄畻鐢电嚎鐨勫钩鏂涔熺敤姹傚渾褰㈤潰绉殑鍏紡鏉ヨ绠楋細 鐢电嚎鐨勫钩鏂癸紳鍦嗗懆鐜囷紙3.14锛壝楃嚎鐩村緞鐨勫钩鏂锛4銆
绛旓細14鐨勫钩鏂规牴x2=6.68 mm銆傜數绾跨殑骞虫柟=鍦嗗懆鐜(3.14)脳绾鐩村緞鐨骞虫柟/4銆35骞虫柟鎰忔濇槸鐢电嚎鐨勫ぇ灏忎负35骞虫柟姣背锛屼篃灏辨槸瀹冪殑鎴潰绉傝绠楀叕寮忔槸锛氭埅闈㈢Н(S)=鍗婂緞鐨勫钩鏂(R)脳娲(蟺)锛屾瘮濡傜嚎寰勪负1.78鐨勭數绾锛(1.78梅2)脳3.14=2.48鈮2.5骞虫柟锛屾墍浠2.5骞虫柟鐢电嚎鐨勭洿寰灏辨槸1.78姣背銆
绛旓細2.5骞虫柟鐨閾滅嚎鐩村緞鏄1.78mm銆傚彲浠ラ氳繃璁＄畻寰楃煡锛岀數绾跨殑鍗婂緞骞虫柟锛鐢电嚎骞虫柟鍊济峰渾鍛ㄧ巼锛屽皢2.5骞虫柟锛屽拰鍦嗗懆鐜3.14甯﹀叆锛屽嵆鐢电嚎鐨勫崐寰勫钩鏂癸紳2.5/3.14锛屼篃灏辨槸0.8锛屽洜鑰屽彲浠ュ緱鍑虹洿寰勶紳2脳鏍瑰彿0.8锛屽緱鍑鐩村緞涓1.78mm銆傞摐绾挎槸鍚﹁兘澶熼夎喘锛屾槸瑕佺湅鍏舵槸鍚﹂氳繃鐨勭浉鍏抽儴闂ㄧ殑妫楠屻傝嫢鏄氳繃妫楠岀殑浜у搧锛屽湪...
绛旓細鍐呭鏀瑰啓鍔╂墜锛岀粨鍚堟爣棰榹2.5骞虫柟銆4骞虫柟銆6骞虫柟鐢电嚎鐨勭洿寰勬湁澶氬ぇ锛焳锛屽鏂囨湰鍐呭杩涜淇敼娑﹁壊锛岃瘑鍒苟绾犳鐩稿叧閿欒锛屾敞鎰忚鍙ョ殑鏃舵侊紝鎻愬崌鍐呭璐ㄩ噺銆傝姹傝涔変笉鍙橈紝鏉＄悊娓呮櫚锛屾瘡涓潯鐩竴娈碉紝鏉＄洰涔嬮棿闇瑕佹崲琛岋紝淇濈暀鏉＄洰缂栧彿銆備笉瑕佸嚭鐜扳滄敼鍐欏悗鈥濊繖鏍风殑鎻愮ず璇彞锛屼笉闇瑕佸甫鏍囬銆1. 2.5骞虫柟鐢电嚎鐨鐩村緞涓1....
绛旓細閫氬父璇寸殑澶氬皯骞虫柟鏄寚瀵肩嚎鎴潰绉涓哄灏戝钩鏂姣背銆傛瘮濡2.5骞虫柟锛屽搴斿绾挎埅闈㈢Н鏄2.5骞虫柟姣背銆傚绾挎埅闈㈢НS=蟺r²锛屽彲浠ヨ绠楀嚭2.5骞虫柟鐨勫浗鏍囩數绾跨洿寰锛2r锛夋槸1.785姣背
绛旓細閫氬父璇寸殑澶氬皯骞虫柟鏄寚瀵肩嚎鎴潰绉涓哄灏戝钩鏂姣背銆傛瘮濡2.5骞虫柟锛屽搴斿绾挎埅闈㈢Н鏄2.5骞虫柟姣背銆傚绾挎埅闈㈢НS=蟺r²锛屽彲浠ヨ绠楀嚭2.5骞虫柟鐨勫浗鏍囩數绾跨洿寰锛2r锛夋槸1.785姣背
绛旓細2.5骞虫柟鐨閾滅嚎鐩村緞鏄1.78mm銆傜煡閬鐢电嚎鐨骞虫柟锛岃绠楃數绾跨殑鍗婂緞鐢ㄦ眰鍦嗗舰闈㈢Н鐨勫叕寮忚绠楋細鐢电嚎骞虫柟鏁帮紙骞虫柟姣背锛夛紳鍦嗗懆鐜囷紙3.14锛壝楃數绾垮崐寰勶紙姣背锛夌殑骞虫柟銆2.5鏂圭殑妯埅闈㈤潰绉负2.5mm²锛岀數绾跨殑绾垮崐寰勭殑骞虫柟鏄細2.5梅 3.14 = 0.8锛屽啀瀵光垰0.8锛屽緱鍑虹粨鏋渞锛屽啀姹傜洿寰...
绛旓細2銆佹鏌ラ摐鑺鐢电嚎灏哄 鏍规嵁鐩稿叧瑕佹眰锛鐢电紗闀垮害璇樊闇鍦2%浠ュ唴锛岀數缂嗘埅闈鐩村緞瑕佸湪0.02%浠ュ唴銆傝川閲忓ソ鐨勯摐鑺槸鍛堢传鑹诧紝瀵屾湁鍏夋辰銆佽〃闈㈠厜婊戙傚亣鍔ｉ摐鑺數缂嗙殑閾滆姱鍛堢传榛戣壊銆佹贰榛勮壊鎴栫櫧鑹层3銆佽浇娴侀噺鐨勯夋嫨 浠ョ數璐熻嵎璁＄畻锛1.5~10骞虫柟姣背鐨勯摐鑺嚎鐨勮浇娴侀噺鏄埅闈㈢Н鐨5鍊嶏紝6鑷25骞虫柟姣背鐨勯摐鑺嚎杞芥祦閲忔槸...
