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Old 12-27-2009, 01:12 PM   #1
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Lighting fixture safety standards


So the standard is to have Hot on the tip and neutral on the screw base, but in the case of a chandiler, how do you know which is witch? The cords I have on the chandilers in my house are all that yellow clear brassey looking coard... I just wanted to check to see if they are up to the "safety" standard is there any real way to check this with out disassembling the chandiler and looking what is connected to what? thanks!
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Old 12-27-2009, 01:39 PM   #2
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I forget whether it's the hot or neutral(I usually ring them out) but, if the cord has the same color conductors, the cord will have some kind of distinguishing marks whether it be writing on one conductor or one conductor will be ribbed.
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Old 12-27-2009, 01:49 PM   #3
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Quote:
Originally Posted by wirenut1110 View Post
I forget whether it's the hot or neutral(I usually ring them out) but, if the cord has the same color conductors, the cord will have some kind of distinguishing marks whether it be writing on one conductor or one conductor will be ribbed.

Unfortinuatly, I'm not seeing anything like that on these cords...
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Old 12-27-2009, 01:56 PM   #4
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If you have no way of checking continuity maybe someone else has an idea.
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Old 12-27-2009, 02:29 PM   #5
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If you have no way of checking continuity maybe someone else has an idea.
might end up having to take the top off them and see whats connected to wha, I'm sure inside they have white and black lines... most of them I've seen do... just gets to be a pain sometimes taking it apart to check that
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Old 12-27-2009, 03:51 PM   #6
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generally on a zip cord, there will be a small rib on one of the sides. That is intended to be the neutral. I have also seen much of it with the (intended) neutral conductor to use tinned wire. It will look silver and the hot wire is left plain copper.

the rib is not overly noticeable so you do have to look (actually I have to feel) quite closely.

and BlueBSH, it is not just a standard for the shell to be the neutral, it is a code requirement.

the easiest way is to use a continuity tester and check from one prong of the plug (if a plug is used) to the lamp socket. The larger blade is the neutral which should be the shell of the lamp holder.
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Old 12-29-2009, 08:33 PM   #7
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picked up a Voltage sensor at lowes for about $10 said on the packadging can detect hot wire, so figured try it out... seems to work great detecting where the hot is in a screw base... touch it to the screw part doesnt go off.. touch it to the tip part and goes off found one light fixture in the house that needs flipped, so seems to be a good $10 investment
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Old 12-29-2009, 10:03 PM   #8
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How to use a continuity tester...
http://www.dinosaurelectronics.com/Test_Fuse.htm

Note: Remove all light bulbs first and disconnect power.
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