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wiring fluorescents

19 years ago

I am trying to wire 4 commercial electric shop lights together so i only need one plug to turn them on. Well I cut all the plugs off except one and then wired all the ballasts together in order, plugged it in and only the one with the cord lit up. The other three, nothing. Any Thoughts thanks. D

Comments (6)

  • 19 years ago

    did you wire the black & white from the ballast together or did you do something else? Can you post a picture of what you did?

    dcarch

  • 19 years ago

    Im not sure how to attach a pic yet. Yes I just connected the blacks to blacks and the whites to the whites right down the line.

  • 19 years ago

    It will be very helpful to have a picture. Do a search in the Forums here and you will find that it's not very difficult.
    In any case:
    1. Do not forget to leave the green (ground) wires connected to the metal cases. Ground wire is important for safety.
    2. You should have identified the remaining plug wires from the ballast which color wire goes to the wider prong of the plug and which color goes to the narrow prong of the plug. ItÂs important for safety reasons.
    3. You should not use the black and white wires to go outside of the fixtures to connect to the other fixtures because the rubber coating on the black and white wires are not rated for outside use.
    4. Electrically, you should have four black wires tied together and four white wires tied together. All ballasts are to be connected in "parallel" to the power wires (110V AC).

    With due respect, this is not a very complicated job. The fact that it is not working for you leads me to believe that you are not experienced in doing this kind of work. Because safety is involved, I seriously advise you to have someone else to take a look for you just to make sure that everything is done properly.

    Also do not do anything after reading this post until someone else here comments on my writing just to make sure that I have not mis-communicated.

    I encourage you to continue to finish this job because itÂs important to have the experience and itÂs not very difficult.

    BTW: some fixtures come with a little pull chain switch, if thatÂs the case obviously the switches should be in the ON position.

    dcarch

  • 19 years ago

    Thanks for the reply dcarch, Actually I am pretty good with electric. Wired my whole house and my carwash. but never tried to wire anything with ballasts I just thought that with ballasts there might be something else that needed to be done. I'll check connection from 1st and 2nd light that may be the problem.

  • 19 years ago

    Yes, a photo or diagram of your wiring would be helpful. Not sure what you mean by wiring them "in order", that isn't how I would describe what you need to do. The obvious checks to make are that each of your ballasts work individually and that your wiring is actually connected properly. Check that the live wire is actually live at each ballast (not with your finger!), you may just find you have a loose connection.

    Essentially you need to take the two mains wires (I prefer three but sounds like you may not have an earthed plug?) from each ballast and sending them all to the plug. At some stage you join each of the live/black wires and each of the neutral/common/white wires into a single wire to connect to the plug. How and where this join is made can vary from having completely separate wire pairs from each ballast right to the plug, from connect all the ballasts immediately to a single power cord, but either way around there isn't what I would describe as a "first" or "last" ballast. If you have sent the power cord direct to one ballast, then connected wires from the input of that ballast to the next, and on down the line, then check the voltage at each connected wire to find where it isn't connected. Checking the neutral wires is less easy, maybe just connect them all again more carefully.

  • 19 years ago

    Thanks for the replies, I just took off the clamp style connectors and used screw type and all works well. must have been bad connections. thanks again.

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