安全电压为什么不能与大地连接且不能接地接零
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安全电压(或特低电压)并非都不能接地。
在GB 50054《低压配电设计规范》中,把特低电压系统分为三类:
SELV系统:在正常条件下不接地的系统;
PELV系统:在正常条件下接地的系统;
FELV系统。
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绛旓細姝e父鐨.鎴戜滑鐢ㄧ殑鐢典笌鍦板叾瀹炴槸闅旂粷鐨,涔熷氨鏄病鏈変粈涔堝叧绯,涓嶆瀯鎴愬弬鑰冪郴.浣犻噺鍒扮殑鍦扮嚎鏈110浼,鍏跺疄鏀瑰ぉ浣犲啀閲,涔熻灏辨垚浜20浼,鎴栬1000浼忎篃鏈繀鍛傞櫎闈炵伀绾挎垨闆剁嚎鍦ㄤ粈涔堝湴鏂瑰彂鐢熶簡鎺ュ湴鐭矾,鍦扮嚎鐨勭數鍘嬫墠鏄笌鐏嚎闆剁嚎鐩稿叧.鐏嚎涓庨浂绾挎槸鐩稿叧鐨,鐏嚎鐢靛帇涓闆剁嚎鐢靛帇涔嬮棿蹇呭畾鏄220v宸.鏇存:hsl璇寸殑瀵,鎴...