Why is a white electrical wire connected to 2 black wires?How to wire a light fixture with 3 white wires in box?How should I wire a ceiling fan when there's only three wires in the box?Two white, two black, two ground, and red wire in ceiling box connected to switchWhy is there a white wire connected to multiple black wires in my light box?How to wire a light with two white wires and one black wireReplace light switch connected to a power outlet with dimmer - two black wires to one black and redHow to wire a light with multiple black/white/green wires from the ceiling?Ceiling box has 2 black and white wires but fan/ light only has 1 of eachWhy neutral wire connected to load wire?Switch with 2 black, 2 white, 2 ground and 1 red wire connected to ceiling light and a receptacle?

Could the Saturn V actually have launched astronauts around Venus?

The German vowel “a” changes to the English “i”

Is there a place to find the pricing for things not mentioned in the PHB? (non-magical)

Adventure Game (text based) in C++

et qui - how do you really understand that kind of phraseology?

Describing a chess game in a novel

Do the common programs (for example: "ls", "cat") in Linux and BSD come from the same source code?

Why do newer 737s use two different styles of split winglets?

Print a physical multiplication table

How do you talk to someone whose loved one is dying?

Tikz picture of two mathematical functions

Python if-else code style for reduced code for rounding floats

Equivalents to the present tense

Can I use USB data pins as power source

Is it true that good novels will automatically sell themselves on Amazon (and so on) and there is no need for one to waste time promoting?

Does this sum go infinity?

Most cost effective thermostat setting: consistent temperature vs. lowest temperature possible

World War I as a war of liberals against authoritarians?

PTIJ: Who should I vote for? (21st Knesset Edition)

Professor being mistaken for a grad student

Is there a symmetric-key algorithm which we can use for creating a signature?

How difficult is it to simply disable/disengage the MCAS on Boeing 737 Max 8 & 9 Aircraft?

How do I change two letters closest to a string and one letter immediately after a string using Notepad++?

How to explain that I do not want to visit a country due to personal safety concern?



Why is a white electrical wire connected to 2 black wires?


How to wire a light fixture with 3 white wires in box?How should I wire a ceiling fan when there's only three wires in the box?Two white, two black, two ground, and red wire in ceiling box connected to switchWhy is there a white wire connected to multiple black wires in my light box?How to wire a light with two white wires and one black wireReplace light switch connected to a power outlet with dimmer - two black wires to one black and redHow to wire a light with multiple black/white/green wires from the ceiling?Ceiling box has 2 black and white wires but fan/ light only has 1 of eachWhy neutral wire connected to load wire?Switch with 2 black, 2 white, 2 ground and 1 red wire connected to ceiling light and a receptacle?













1















enter image description hereenter image description here



I just opened my ceiling light to replace it with another mount. I see a white wire connected to 2 black wires, is that right?



The middle switch controls this ceiling light.










share|improve this question







New contributor




konyak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
























    1















    enter image description hereenter image description here



    I just opened my ceiling light to replace it with another mount. I see a white wire connected to 2 black wires, is that right?



    The middle switch controls this ceiling light.










    share|improve this question







    New contributor




    konyak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      1












      1








      1








      enter image description hereenter image description here



      I just opened my ceiling light to replace it with another mount. I see a white wire connected to 2 black wires, is that right?



      The middle switch controls this ceiling light.










      share|improve this question







      New contributor




      konyak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      enter image description hereenter image description here



      I just opened my ceiling light to replace it with another mount. I see a white wire connected to 2 black wires, is that right?



      The middle switch controls this ceiling light.







      electrical ceiling light






      share|improve this question







      New contributor




      konyak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







      New contributor




      konyak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






      New contributor




      konyak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 4 hours ago









      konyakkonyak

      1084




      1084




      New contributor




      konyak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      konyak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      konyak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.




















          2 Answers
          2






          active

          oldest

          votes


















          3














          The cable with the white wire that's connected to the two black wires is a switch loop:



          switch loop



          Normally wires with white insulation are used only for neutrals, but code makes an exception to allow for use of the white wire in a cable used as a switch loop as a hot rather than a neutral.






          share|improve this answer






























            1














            That is positional coding. It is very important data.



            Wire colors in cable are standardized and do not vary. In any cable, if neutral is present, it must be the white. The most likely application for this is in a switch loop. If neutral is not present but an always-hot is, contemporary Code says white must be used for an always-hot. That's to make it easier to identify with a voltage tester. Newer code says white so used, must be marked with tape.



            Once you have identified the neutral bundle (all white), a white in a non-neutral bundle is one of these. The fact this is in a lamp makes this most likely a switch loop.



            Most likely its partner black is the switched-hot. The lamp will want this switched-hot, and actual neutral.






            share|improve this answer






















              Your Answer








              StackExchange.ready(function()
              var channelOptions =
              tags: "".split(" "),
              id: "73"
              ;
              initTagRenderer("".split(" "), "".split(" "), channelOptions);

              StackExchange.using("externalEditor", function()
              // Have to fire editor after snippets, if snippets enabled
              if (StackExchange.settings.snippets.snippetsEnabled)
              StackExchange.using("snippets", function()
              createEditor();
              );

              else
              createEditor();

              );

              function createEditor()
              StackExchange.prepareEditor(
              heartbeatType: 'answer',
              autoActivateHeartbeat: false,
              convertImagesToLinks: false,
              noModals: true,
              showLowRepImageUploadWarning: true,
              reputationToPostImages: null,
              bindNavPrevention: true,
              postfix: "",
              imageUploader:
              brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
              contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
              allowUrls: true
              ,
              noCode: true, onDemand: true,
              discardSelector: ".discard-answer"
              ,immediatelyShowMarkdownHelp:true
              );



              );






              konyak is a new contributor. Be nice, and check out our Code of Conduct.









              draft saved

              draft discarded


















              StackExchange.ready(
              function ()
              StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdiy.stackexchange.com%2fquestions%2f159929%2fwhy-is-a-white-electrical-wire-connected-to-2-black-wires%23new-answer', 'question_page');

              );

              Post as a guest















              Required, but never shown

























              2 Answers
              2






              active

              oldest

              votes








              2 Answers
              2






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              3














              The cable with the white wire that's connected to the two black wires is a switch loop:



              switch loop



              Normally wires with white insulation are used only for neutrals, but code makes an exception to allow for use of the white wire in a cable used as a switch loop as a hot rather than a neutral.






              share|improve this answer



























                3














                The cable with the white wire that's connected to the two black wires is a switch loop:



                switch loop



                Normally wires with white insulation are used only for neutrals, but code makes an exception to allow for use of the white wire in a cable used as a switch loop as a hot rather than a neutral.






                share|improve this answer

























                  3












                  3








                  3







                  The cable with the white wire that's connected to the two black wires is a switch loop:



                  switch loop



                  Normally wires with white insulation are used only for neutrals, but code makes an exception to allow for use of the white wire in a cable used as a switch loop as a hot rather than a neutral.






                  share|improve this answer













                  The cable with the white wire that's connected to the two black wires is a switch loop:



                  switch loop



                  Normally wires with white insulation are used only for neutrals, but code makes an exception to allow for use of the white wire in a cable used as a switch loop as a hot rather than a neutral.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 3 hours ago









                  batsplatstersonbatsplatsterson

                  13.4k11640




                  13.4k11640























                      1














                      That is positional coding. It is very important data.



                      Wire colors in cable are standardized and do not vary. In any cable, if neutral is present, it must be the white. The most likely application for this is in a switch loop. If neutral is not present but an always-hot is, contemporary Code says white must be used for an always-hot. That's to make it easier to identify with a voltage tester. Newer code says white so used, must be marked with tape.



                      Once you have identified the neutral bundle (all white), a white in a non-neutral bundle is one of these. The fact this is in a lamp makes this most likely a switch loop.



                      Most likely its partner black is the switched-hot. The lamp will want this switched-hot, and actual neutral.






                      share|improve this answer



























                        1














                        That is positional coding. It is very important data.



                        Wire colors in cable are standardized and do not vary. In any cable, if neutral is present, it must be the white. The most likely application for this is in a switch loop. If neutral is not present but an always-hot is, contemporary Code says white must be used for an always-hot. That's to make it easier to identify with a voltage tester. Newer code says white so used, must be marked with tape.



                        Once you have identified the neutral bundle (all white), a white in a non-neutral bundle is one of these. The fact this is in a lamp makes this most likely a switch loop.



                        Most likely its partner black is the switched-hot. The lamp will want this switched-hot, and actual neutral.






                        share|improve this answer

























                          1












                          1








                          1







                          That is positional coding. It is very important data.



                          Wire colors in cable are standardized and do not vary. In any cable, if neutral is present, it must be the white. The most likely application for this is in a switch loop. If neutral is not present but an always-hot is, contemporary Code says white must be used for an always-hot. That's to make it easier to identify with a voltage tester. Newer code says white so used, must be marked with tape.



                          Once you have identified the neutral bundle (all white), a white in a non-neutral bundle is one of these. The fact this is in a lamp makes this most likely a switch loop.



                          Most likely its partner black is the switched-hot. The lamp will want this switched-hot, and actual neutral.






                          share|improve this answer













                          That is positional coding. It is very important data.



                          Wire colors in cable are standardized and do not vary. In any cable, if neutral is present, it must be the white. The most likely application for this is in a switch loop. If neutral is not present but an always-hot is, contemporary Code says white must be used for an always-hot. That's to make it easier to identify with a voltage tester. Newer code says white so used, must be marked with tape.



                          Once you have identified the neutral bundle (all white), a white in a non-neutral bundle is one of these. The fact this is in a lamp makes this most likely a switch loop.



                          Most likely its partner black is the switched-hot. The lamp will want this switched-hot, and actual neutral.







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered 2 hours ago









                          HarperHarper

                          73.6k448148




                          73.6k448148




















                              konyak is a new contributor. Be nice, and check out our Code of Conduct.









                              draft saved

                              draft discarded


















                              konyak is a new contributor. Be nice, and check out our Code of Conduct.












                              konyak is a new contributor. Be nice, and check out our Code of Conduct.











                              konyak is a new contributor. Be nice, and check out our Code of Conduct.














                              Thanks for contributing an answer to Home Improvement Stack Exchange!


                              • Please be sure to answer the question. Provide details and share your research!

                              But avoid


                              • Asking for help, clarification, or responding to other answers.

                              • Making statements based on opinion; back them up with references or personal experience.

                              To learn more, see our tips on writing great answers.




                              draft saved


                              draft discarded














                              StackExchange.ready(
                              function ()
                              StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fdiy.stackexchange.com%2fquestions%2f159929%2fwhy-is-a-white-electrical-wire-connected-to-2-black-wires%23new-answer', 'question_page');

                              );

                              Post as a guest















                              Required, but never shown





















































                              Required, but never shown














                              Required, but never shown












                              Required, but never shown







                              Required, but never shown

































                              Required, but never shown














                              Required, but never shown












                              Required, but never shown







                              Required, but never shown







                              Popular posts from this blog

                              Are there any AGPL-style licences that require source code modifications to be public? Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern) Announcing the arrival of Valued Associate #679: Cesar Manara Unicorn Meta Zoo #1: Why another podcast?Force derivative works to be publicAre there any GPL like licenses for Apple App Store?Do you violate the GPL if you provide source code that cannot be compiled?GPL - is it distribution to use libraries in an appliance loaned to customers?Distributing App for free which uses GPL'ed codeModifications of server software under GPL, with web/CLI interfaceDoes using an AGPLv3-licensed library prevent me from dual-licensing my own source code?Can I publish only select code under GPLv3 from a private project?Is there published precedent regarding the scope of covered work that uses AGPL software?If MIT licensed code links to GPL licensed code what should be the license of the resulting binary program?If I use a public API endpoint that has its source code licensed under AGPL in my app, do I need to disclose my source?

                              2013 GY136 Descoberta | Órbita | Referências Menu de navegação«List Of Centaurs and Scattered-Disk Objects»«List of Known Trans-Neptunian Objects»

                              Button changing it's text & action. Good or terrible? The 2019 Stack Overflow Developer Survey Results Are Inchanging text on user mouseoverShould certain functions be “hard to find” for powerusers to discover?Custom liking function - do I need user login?Using different checkbox style for different checkbox behaviorBest Practices: Save and Exit in Software UIInteraction with remote validated formMore efficient UI to progress the user through a complicated process?Designing a popup notice for a gameShould bulk-editing functions be hidden until a table row is selected, or is there a better solution?Is it bad practice to disable (replace) the context menu?