Dimming wire for lights

Discussion in 'OnBoard Electronics & Controls' started by Andru, Dec 28, 2024.

  1. Andru
    Joined: Dec 2024
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    Location: Washington

    Andru Junior Member

    I will be running 16/2 cable from a dimmer switch to LED lighting fixtures that have 0-10V dimming. I know in the commercial world the conductor colors would be purple and pink. What colors are standard in the boating world? Thanks!
     
  2. fallguy
    Joined: Dec 2016
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    Location: usa

    fallguy Boat Builder

    I’d run dk blu for the hots and yellow for the gnd.

    You can go to a fancier table, but it all depends on what you are building. I don’t see any indication of a copyright.

    IMG_2653.png
     
  3. Andru
    Joined: Dec 2024
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    Location: Washington

    Andru Junior Member

    Thanks for the chart! So it will be 2 conductors with no ground. The 0-10v dimming is DC positive and negative. I ordered a cable with black and red conductors. I’d like to comply with ABYC standards and if there is a color code I’ll phase them the correct color. Not sure what the hot color should be and the negative color should be. Should I just leave it be and make the red positive and black negative?
     
  4. fallguy
    Joined: Dec 2016
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    fallguy Boat Builder

    In DC systems, typ low voltage gnd is yellow or black, not any reason red, so absent better efforts, yes, red hot and black gnd. I prefer running a strip of blue wire to the panel if using another wire for the run. But as long as you label the red and black, all good unless the surveyor hates it. I believe ABYC uses language of should or recommend on color, but labelling is required. Since AC hot is black, make sure to label blacks as DC Light GND, or some such. As AC and DC bundles are not allowed near each other; it would be unlikely to confuse them.
     
  5. gonzo
    Joined: Aug 2002
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    gonzo Senior Member

    On dual voltage the black can be confusing. However, battery cables are black and red.
     
  6. Tops
    Joined: Aug 2021
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    Location: Minnesota

    Tops Senior Member

    Adding a label makes sense.
    Would adding a yellow heat shrink tube over the black wire and a blue heat shrink tube over the red wire on both sides of the crimps (assuming supply wire is crimped to device pigtail) be something?
     
  7. Andru
    Joined: Dec 2024
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    Location: Washington

    Andru Junior Member

    I could re-color them. Why blue and yellow? And which one is positive and negative?
     
  8. Tops
    Joined: Aug 2021
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    Location: Minnesota

    Tops Senior Member

    I was thinking yellow over black to remove the 110AC 'hot' vs low voltage ground confusion. Blue over red because blues are interior lights on the chart upthread.
    Labels would not need a chart or scheme, they can just say it like it is.
     

  9. Andru
    Joined: Dec 2024
    Posts: 7
    Likes: 0, Points: 1
    Location: Washington

    Andru Junior Member

    Thanks. That makes sense.
     
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