Feb 4th, 2011 2:54 amGeorge W. Bush deal Addict Oct 4, 2003 3198 short articles 62 upvotes Kitchener - Waterloo

Feb 4th, 2011 2:54 am


I eliminated the old irradiate fixture, and also it had two white wires (one pure white, the various other white with a slim black/grey heat visible, and also the ground (copper line)). Together I recall, the white heat coming native the ceiling was linked to the black line native the fixture, and the white line v the thin/grey line v it was connected to white, and the copper line from ceiling was linked to the copper line from fixture (and in turn connected to the steel casing).Can anyone you re welcome confirm v me even if it is the white heat from the ceiling is the one the gets connected to the black color line indigenous the fixture, and also whether the white with a slim black/grey line gets linked to the white (these two wires are the neutral wires).Thank you!
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Feb 4th, 2011 5:04 amCaptSmethwickDeal Fanatic
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Oct 12, 2007 6063 short articles 3609 upvote Ottawa

Feb 4th, 2011 5:04 am


George W. Bush wrote: ↑I gotten rid of the old light fixture, and it had two white wires (one pure white, the various other white v a thin black/grey line visible, and the soil (copper line)). Together I recall, the white heat coming from the ceiling was linked to the black color line from the fixture, and the white line v the thin/grey line v it was linked to white, and the copper line from ceiling was linked to the copper line from fixture (and in turn connected to the steel casing).Can anyone please confirm v me even if it is the white line from the ceiling is the one that gets connected to the black line native the fixture, and whether the white with a slim black/grey heat gets linked to the white (these 2 wires room the neutral wires).Thank you!
Are you saying that there are just two white wires and also an unsheathed neutral coming from the box in the ceiling? just how old is this house/wiring? What layout of bulb does this fixture take? (polarity matters significantly with most bulbs but not all),
Feb 4th, 2011 6:27 amfieldhousehandymanDeal Addict jan 19, 2011 2991 write-ups 1252 upvotes

Feb 4th, 2011 6:27 am


Regardless the what wires space entering the box and what colours they may be, and what color the wires space from the fixture that you are connecting, girlfriend must determine which that the two wires entering the box is the hot. The warm must be linked to the wire of the irradiate fixture the connects to the "button" at the back of the receptacle that the light pear screws into, not the threaded steel socket ring.Contrary come CaptSmethwick"s post, polarity does not matter to any type of light bulb, no incandescent, nor LCD, and I can"t fathom just how it would also to the brand-new LED bulbs (AC current is bi-directional, therefore a device cannot phone call what wire is hot, and also what is not). Polarity does matter for when you screw a light pear in or out, because if the threaded ring the the fixture is energized, the risk of one electircal shock that will certainly zap your arm and also possibly reason you to loss off your stool and also break her leg when an altering it is greatly increased!http://googelectrician.blogspot.com/200 ... About.htmlThe link above has a good explanation and also a diagram reflecting why polarity matters in terms of electric safety. Further to that, every appliance, hand tool, or other electrical maker which has a polarized plug (narrow blade/wide blade) will role perfectly fine v the polarity reversed. The problem is the reality that the safety system constructed into these gadgets in terms of exactly how they are constructed and also energized is compromised. Rather of your toaster"s "live" cable going directly to the switch first (where the power stops if the move is off), once the polarity is reversed, the "live" i do not care the neutral line, an energetic the housing and chassis, then the burner element, and then getting here at the move (regardless of whether on or off, live power has still come this far). This way the whole toaster is currently live and also energized, even with the switch in the "off" position.http://www.home-spec.com/reversepolarityoutlets.htmlAnother an excellent link explaining everything about the issues with reversed polarity.

You are watching: 2 white wires and 1 black wire light fixture


Feb 4th, 2011 11:38 amcoolspotDeal professional Oct 6, 2005 16629 write-ups 2331 upvotes

Feb 4th, 2011 11:38 am


In the lack of being able to actually verify i m sorry is the warm wire i would put white come white, and also black to the white/black/grey wire.As has been pointed out it renders no difference to the operation of the irradiate fixture however there is a safety factor to consider in that you"d rather not have the threads inside the socket live. Better to have actually the contact at the bottom the the socket live.
Feb 4th, 2011 3:59 pm38racingSr. Member Jul 26, 2010 919 articles 87 upvotes eastern Ontario

Feb 4th, 2011 3:59 pm


I"m a little bit confused. What colour room the supply wires entering the box? One black and also one white (hopefully) or 2 whites. Could be 2 whites if the person wiring that did not follow convention and use a white to go to the move so black could come back. Together posted somewhere else if it"s 2 whites climate you require to determine which is hot and also which is neutral, then put a piece of black tape top top the hot one because that future reference. Ok, simply re-read OP and also sounds like 2 whites comes in so ns am simply repeating one more post.If you have actually what I mean you will watch a pair of black wires associated together in a cap. That"s whereby the installer more than likely messed up and it should have actually been a black and white together. Regrettably without learning which cable is supply and which is going come the switch you need to determine i m sorry of the white skin - man is hot and which is neutral supply. Remember the white at fixture is only warm when move is on.As because that polarity you have the right to use one ohmmeter on the fixture (when complete disconnected) to recognize which lead is come the pear end and also which is come the threaded portion.
Feb 4th, 2011 4:06 pmfieldhousehandymanDeal Addict jan 19, 2011 2991 short articles 1252 upvotes

Feb 4th, 2011 4:06 pm


I think it to be wired v speaker wire!The inquiry is, is over there one "cable" with 3 wires in that (2 insulated, and a bare ground) coming right into the box? or are there two "cables" each with either two or three wires each entering the box?take a photograph, and post38 racing to know (many homeowners carry out not, and also it is a usual error) precisely how to cable a switch located past the pack it controls, whereby black (hot) native the "source" marrettes to the white (still hot) going come the switch, black (hot when switch is on) return from switch to serve the load, and white return to the source.
Feb 5th, 2011 5:40 pmGeorge W. Bush transaction Addict Oct 4, 2003 3198 posts 62 upvotes Kitchener - Waterloo

Feb 5th, 2011 5:40 pm


It is typical wire - however perhaps part older wire. I have done some reading, and also they are saying the white or grey wire is NEUTRAL in phibìc America.White cable with any type of thin colour running through it (black, brown because that example) is HOT.I have actually attached an image for girlfriend people.When i disconnected the light casing, ns recall (I think correctly, the the white wire that has a thin black/brown strang going through it come the black wire native the irradiate fixture. The while indigenous the ceiling was associated to the WHITE from the irradiate fixture, and also the copper uncovered wire was connected to the other copper uncovered wire from the irradiate fixture, and also then linked to a metal ground in the ceiling hole. Watch attached picture.http://img717.imageshack.us/img717/8919/wiresr.jpg
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Feb 5th, 2011 7:01 pmfieldhousehandymanDeal Addict january 19, 2011 2991 articles 1252 upvotes

Feb 5th, 2011 7:01 pm


Wow thats some vintage wiring! looks choose stuff from the "forties through "sixties which generally had a woven plastic like fabric casing v brown document wrap underneath, and also generally come in silver, red, blue or black colours. The white with the black/grey stripe have to be the warm by convention, yet I would inspect it to do certain. Remember the irradiate will role fine nevertheless which means it is wired, but safety is enhanced when wired through polarity correct.
Feb 5th, 2011 8:05 pmretrovetteSr. Member Nov 21, 2010 515 posts 107 upvote Ontario

Feb 5th, 2011 8:05 pm


A voltage tester is a really good inexpensive invest for times choose this. Friend don"t need a multimeter just a tester. There room some that detect voltage best through the wire"s insulation so friend don"t also have to touch the to ceiling wire. As soon as I was functioning I always carried a Fluke VoltAlert in my height pocket. If you are using a standard tester with two leads, v the light switch in the on position you will be live in between the the hot and the ground.There will certainly be zero volts in between the neutral and ground. Neutrals room grounded ago at the dashboard so room at the very same "Potential" together ground.As others have said, the brand-new light will job-related either method as it"s A/C yet it"s inadvisable to wire it whereby the threaded portion of the socket is live.Plus, I see your ceiling ground is no attached come the box. You need to affix that and also the ground indigenous the brand-new fixture to the box with a ground screw. Have to be nothing friend can"t handle yourself.
Feb 5th, 2011 8:12 pmGeorge W. Bush transaction Addict Oct 4, 2003 3198 articles 62 upvotes Kitchener - Waterloo

Feb 5th, 2011 8:12 pm


Appreciate it. I have actually a voltage tester - friend touch the wire, and it beeps and also a light comes on. It goes on when I touch either of the two wires.
Ontario person Rights board of directors investigates City the Waterloo and also North bay rental by-law - submit your concern! - submit by April 15, 2012Rentals in ~ www.locata.ca
Feb 5th, 2011 8:27 pmretrovetteSr. Member Nov 21, 2010 515 short articles 107 upvotes Ontario

Feb 5th, 2011 8:27 pm


George W. Shrub wrote: ↑Appreciate it. I have a voltage tester - girlfriend touch the wire, and it beeps and a light come on. It goes on as soon as I touch one of two people of the 2 wires.
Try to relocate the wires as far away from each other as possible and shot it again. What happens when you shot it with the irradiate switch in the turn off position? Obviously the should present nothing but shot it anyway.If you don"t have actually a tester with two leader to inspect voltage come ground if you have an old lamp you can consist of a pigtail, basically a light bulb in a socket v two wires comes off. Touch one pigtail cable to ground and check by touching the other pigtail wire to the wires in package one at a time through the move in the top top position. Pear lights, you found the hot.
Feb 5th, 2011 8:48 pmretrovetteSr. Member Nov 21, 2010 515 short articles 107 upvote Ontario

Feb 5th, 2011 8:48 pm


Just a thought, but did you inspect the color of the wire coming turn off the switch?If not, take it the covering plate off and also see if you have the right to see the color of the wire.If you deserve to touch the move terminals with your tester the one going come the irradiate fixture will certainly obviously it is in the one that switches the tester on and also off and also other one will stay warm all the time.
Feb 5th, 2011 11:38 pmGeorge W. Bush deal Addict Oct 4, 2003 3198 posts 62 rise Kitchener - Waterloo

Feb 5th, 2011 11:38 pm


The switch to the room has actually the constant black and also white wires. The is the ceiling lamp that are slightly weird. I will certainly recheck v the volt checker.
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It"s simply old wiring as someone has mentioned, but not the old since it has actually a ground. I"m in the procedure of redoing my home and there are no grounds in the cables. If friend go far enough back that"s just how it was. Incidentally, color codes don"t really average anything if part idiot wired things up wrong at the other finish of the cable.
Feb 6th, 2011 7:47 amCaptSmethwickDeal Fanatic
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Oct 12, 2007 6063 write-ups 3609 upvote Ottawa

Feb 6th, 2011 7:47 am


fieldhousehandyman wrote: ↑Contrary to CaptSmethwick"s post, polarity does not matter to any light bulb, not incandescent, no one LCD, and also I can"t fathom just how it would even to the new LED bulbs (AC existing is bi-directional, so a machine cannot call what cable is hot, and also what is not). Polarity does matter for as soon as you screw a light pear in or out, due to the fact that if the threaded ring the the fixture is energized, the risk of one electircal shock that will zap her arm and also possibly cause you to fall off her stool and also break your leg when changing it is substantially increased!
Contrary? friend missed my suggest - ns wasn"t talking around whether or not the bulb would work, ns was suggesting that polarity is usually important for factors that your post explained. Rather, i was questioning the OP for details about the irradiate fixture because bases of part specialty halogen bulbs are placed with recessed contact points whereby the hot and also neutral have actually identical exposure dangers - calculation polarity immaterial indigenous a security perspective. If his fixture is among those, the OP does not should sweat polarity because that this installation. If it"s a screw-type base, he"s requirements to gain it right.

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Feb 6th, 2011 10:50 amfieldhousehandymanDeal Addict jan 19, 2011 2991 write-ups 1252 upvotes

Feb 6th, 2011 10:50 am


I did! I simply read it together the bulb would not role (turn on and also off, based on your statement "polarity problem with most bulbs") if polarity was reversed, and missed the ethereal indication the polarity matters with most "bulb fixtures" especially the medium base screw in type, i beg your pardon is what i think you were implying. Ns think us both agree polarity problem as much as electrical safety is concerned.I should have actually used "To clarify" rather of "Contrary to"
Feb 6th, 2011 11:44 amKeigotwDeal Expert
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Mar 25, 2003 16291 posts 4826 rise Markham

Feb 6th, 2011 11:44 am


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Feb 8th, 2011 10:19 pmGeorge W. Bush transaction Addict Oct 4, 2003 3198 write-ups 62 rise Kitchener - Waterloo

Feb 8th, 2011 10:19 pm


indeed tiny smurfs - appreciate all your suggestions, etc. Will certainly test through volt meter, and also confirmed the the white/black wire is the identical of blacki arrangement to use halogen lamp - rail lightspeace out!
Ontario person Rights board of directors investigates City of Waterloo and also North bay rental by-law - submit her concern! - send by April 15, 2012Rentals in ~ www.locata.ca
Multimeters are $5-10 for crappy persons that"ll job-related perfectly for tasks like this. Looks prefer the knob & pipe wiring mine house has got. And also yeah, the white black mystery has already been solved.

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