本文发表在 rolia.net 枫下论坛关于卧室灯不亮问题，今天大早又打开看了，并比较了其它几个开关，还是不明白，具体情况如：
开关的接线是两黑一红；两黑线在一个接头(is this referred to the switch's screw teminal?)，白线在另外一个接头(where is the 另外一个接头?is it more then one white wire twist and "capped" with 颜色的帽子") 。用电笔测，黑线无论开与关都有微弱的光亮。(this微弱的光亮 proven the White (Neutral) wire is connected properly. it is a feed back of the electrical current/voltage from other electrical device that is being used).
(红线关时没有电，开时有电 where is this RED wire?) Is it at the switch or the light box)。卸下灯头，(黑色接灯头的白线 Do not understand this, take a picture?)；红色可能因为太短，经过一段大约5公分长的白线延长后（用黑色的电工胶带裹着），连接灯的黑线。灯头上面无数的线。看了另外一个卧室的灯头和开关，完全一样的接法，但是灯是亮的！！
是单开关控制，不知道为什么这么复杂，这么多线。另外，(灯头上面很多线并在一起，都戴着各种颜色的帽子 not to worry other wires, reason is the box are being used as a feed through box or called junction box, most inportant is find which of the wire is come from the wall, switch )，那些是什么？就是和普通的接头加上电工胶布一样的？
请你帮忙分析一下。谢谢你！！！ picture is better then a thousand words.. take a picture post here.
For the sink drainage problem, if the contructor only used 15 ft auger, I would recommand, buy a 50ft or 30ft "Electraicl fishing tape", (HD/ Rona has it) Remove the " U" connection at the bottom of the sink than feed the "Electraicl fishing tape" into the drain, twist the tape while push it in, doing this should be able to remove whatever inside the pipe.更多精彩文章及讨论，请光临枫下论坛 rolia.net
开关的接线是两黑一红；两黑线在一个接头(is this referred to the switch's screw teminal?)，白线在另外一个接头(where is the 另外一个接头?is it more then one white wire twist and "capped" with 颜色的帽子") 。用电笔测，黑线无论开与关都有微弱的光亮。(this微弱的光亮 proven the White (Neutral) wire is connected properly. it is a feed back of the electrical current/voltage from other electrical device that is being used).
(红线关时没有电，开时有电 where is this RED wire?) Is it at the switch or the light box)。卸下灯头，(黑色接灯头的白线 Do not understand this, take a picture?)；红色可能因为太短，经过一段大约5公分长的白线延长后（用黑色的电工胶带裹着），连接灯的黑线。灯头上面无数的线。看了另外一个卧室的灯头和开关，完全一样的接法，但是灯是亮的！！
是单开关控制，不知道为什么这么复杂，这么多线。另外，(灯头上面很多线并在一起，都戴着各种颜色的帽子 not to worry other wires, reason is the box are being used as a feed through box or called junction box, most inportant is find which of the wire is come from the wall, switch )，那些是什么？就是和普通的接头加上电工胶布一样的？
请你帮忙分析一下。谢谢你！！！ picture is better then a thousand words.. take a picture post here.
For the sink drainage problem, if the contructor only used 15 ft auger, I would recommand, buy a 50ft or 30ft "Electraicl fishing tape", (HD/ Rona has it) Remove the " U" connection at the bottom of the sink than feed the "Electraicl fishing tape" into the drain, twist the tape while push it in, doing this should be able to remove whatever inside the pipe.更多精彩文章及讨论，请光临枫下论坛 rolia.net
