ä¸ç¸400V,18.5KWå¯éç¨3x16mm²çéè¯çµç¼ã
计ç®è¿ç¨å¦ä¸ï¼
1ãä¸ç¸400V,18.5KWæ°´æ³µçé¢å®çµæµ
18.5KW/(â3x400Vx0.8)â33A
2ãä¸èèçµç¼é¿åº¦ï¼æ ¹æ®çµæºçµæµ33Aéæ©3è¯éçµç¼æªé¢ç§¯
ä¸è¡¨æ¯VV22åçµç¼çè½½æµé表ã
ä»ä¸è¡¨å¯ç¥ï¼3x10mm²éè¯çµç¼è½½æµéæ¯42.4Aï¼å¤§äºæ°´æ³µé¢å®çµæµ33Aï¼å¯ä»¥å¤éã
3ãéªè¯400ç±³ 3x10mm²éè¯çµç¼çåéæ¯å¦ç¬¦åå½æ è¦æ±
GB12325ï¼2008ãçµè½è´¨é ä¾çµçµåå 许åå·®ãè§å®20åä¼ä»¥ä¸çç»ç«¯çµåä¸å¤§äº400Vx7%=28Våéã
æ¥è¡¨ç¥ï¼10mm²éè¯çµç¼çç´æµçµé»å¼æ¯ 3.08欧/åç±³
æ以400ç±³é¿ççµç¼åé=(3.08欧/åç±³x0.4åç±³) x33Aâ41Vï¼å¤§äº28Vï¼ä¸åè§ï¼ï¼
4ãéæ°éæ©çµç¼æªé¢ç§¯
ç¨ç²äº3x10mm²çæ¯3x16mm²ï¼æ¥è¡¨ç¥16mm²çç´æµçµé»æ¯ 1.91欧/åç±³ã
åé=(1.91欧/åç±³x0.4åç±³) x33Aâ25V <28V ï¼ç¬¦åè§å®ï¼ï¼