Homeowner with line drop

Discussion in 'Landscape Lighting' started by Mrsamman, Jun 11, 2008.

  1. Mrsamman

    Mrsamman LawnSite Member
    Messages: 30

    I just installed some lights round my parents pool and the last two path light have alot of voltage drop. What I did was install twelve 20-35 watt lights on about 70 feet of heavy outdoor lighting wire. I used a double tap 600 watt transformer with 12 13 14 15 volt taps. I used the 13 volt tap (i don't know why I picked that one). Do I need to use a different tap or should I have ran more than one wire? Sorry for my ignorace any help is appreciated.
  2. TXNSLighting

    TXNSLighting LawnSite Fanatic
    from DFW, TX
    Messages: 6,464

    this is why theres proffesionals to do this...how many lights? you should only have a few fixtures per run. it sounds like you daisy chained em..
  3. Chris J

    Chris J LawnSite Silver Member
    Messages: 2,843

    Depending on how many of these 12 lights were 35w, you have probably overloaded your transformer. Most 600w trannys are actually two 300w circuits. You should see at least two common terminals. That means that if more than a few of these lights are 35w, you have more than 300w on one circuit. There are other a whole bunch of other things I could criticize about your goofy install, but I need to send this message to you very quickly so you can somehow un-plug this system before you burn your parent's house down!!!!!!!
    I hope you live close to them so you can go do this right now!
    After you unplug the system, and call a qualified lighting contractor, could you please tell me what your main profession is? I will anxiously await that response.
  4. klkanders

    klkanders LawnSite Senior Member
    from Midwest
    Messages: 849


    Thanks Chris! Very entertaining!
  5. Pro-Scapes

    Pro-Scapes LawnSite Platinum Member
    Messages: 4,180

    Least Chris held his tounge from more coulorful metaphors.

    Im willing to bet even with all 20 w lights they are somehow on 12ga and over loaded

    Burning down the house is playing in my head right now.
  6. XterraJohn

    XterraJohn LawnSite Member
    Messages: 178

    Ignoring that it appears that ALL 20 of the lights are on the same circuit, doesn't 20x35 equal 700? Even if you wired it properly it sounds like you've overloaded the transformer.
  7. Pro-Scapes

    Pro-Scapes LawnSite Platinum Member
    Messages: 4,180

    dont ignore anything. He said 12 lights at 20-35 w Re Read it.
  8. XterraJohn

    XterraJohn LawnSite Member
    Messages: 178

    AHA! Perhaps I've been staring at lawnsite for too long... ;)
  9. Chris J

    Chris J LawnSite Silver Member
    Messages: 2,843

    Don't you guys know that it's 1:30 AM? I thought I was the only one who didn't sleep at night!
  10. David Gretzmier

    David Gretzmier LawnSite Gold Member
    Messages: 3,645

    To answer the question- If you are going to do this yourself, run 4 wires of at least 12 guage, 10 guage preferable. the first wire does the first 3 lights, the 2nd does the next three, and so on. each side of the trans should have 2 wires to a common. use a volt meter to check each run at the connections to the lights, and use the tap for that group of lights that gives you a reading range of 10.5-11.5 volts. good luck.

    now all you guys can throw rocks at me for helping someone.

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