天气预报 > 其他 > 接灯头要分火线零线吗
接灯头要分火线零线吗
更新时间: 2020-10-31 00:00:00  

接灯头要分火线和零线,并且要有以下原则:

1、从开关引入的应该是火线,这样关闭开关后可以是灯头不带电。

2、螺口灯头的内芯是火线,这样不容易被接触到火线。

螺口灯头要区分火线和零线,灯头中心接火线,螺纹口接零线,卡扣灯头不用区分。控制火线接中间的桩头,零线接螺口。螺旋口接零线,里面接火线。中心接火线,另一个接零线。大跷板单极开关接线简单,开关L孔是公共端接火线,L1.L2孔接灯的控制线。

关键词: 灯头 火线

接灯头要分火线零线吗相关经验

天气预报

最新推荐

页面:/news/view-121046/ | 耗时:0.5456 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=121046 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=121046 LIMIT 0,1
select * from tbl_Articles_sphinx where id=121046 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1068458,1080811,1048474,1086848,1069843,1120689,1100901,1091950,1092034,1083038,1081905,1070072,1100921,1066118,1063349,1100655,1044851,1102054,1097355,1097797,1065185,1071994,1118771,1116829,1116373,1063475,1064813,1097583,1120617,1100360) ORDER BY field (ArticleID,1068458,1080811,1048474,1086848,1069843,1120689,1100901,1091950,1092034,1083038,1081905,1070072,1100921,1066118,1063349,1100655,1044851,1102054,1097355,1097797,1065185,1071994,1118771,1116829,1116373,1063475,1064813,1097583,1120617,1100360)