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Christmas Decor

Discussion in 'Lawn Mowing' started by Firstclasslawn, Nov 7, 2004.

  1. Firstclasslawn

    Firstclasslawn LawnSite Senior Member
    Messages: 341

    Ok here goes DOES anyone do christmas decor in the winter and if so then how many 25 foot c9 strands can be plugged into one outlet without flipping breaker I need to know this asap I just got a huge christmas decor lighting job, Thank you also how many mini light strands can be plugged into each other and an outlet without flipping
  2. Jason Rose

    Jason Rose LawnSite Fanatic
    Messages: 5,858

    ok, well a little more info would be great... but for you to figure it out C-9 lights, a string of 25 is 1.59 amps roughly. depending on weather you are working with 15 or 20 amp breakers and weather those are dedicvated to the lights or if they also serve other parts of the house will determine just how many you can put on one breaker.

    mini lights: 300 to make 1 amp.

    to determine amps take the total wattage and devide by 110.

    c-9 lights bulbs are 7 watts each and c-7 bulbs are usually 4 watts each.

    best thing to purchace for any type of lighting job is an amp meter. go to sears, they have a huge selection. you have to be able to seperate your hot wire out, then you clamp the amp meter around it and it will read out how much amperage is flowing thru it. if you can't access the hot with because it's a outlet for example, what i did is made a 1 or 2 foot long "jumper" it's just 12 guage insulated wire (each conductor is seperate) with a male plug on one end and a female on the other. this allowed me to plug it into a outlet an then add the load to it (whatever cords would be plugged into it) and get an amp reading.
    as long as you know your limits you can stay below them this way and it's way safer than playing the "keep adding till it trips" method.
    good luck on the lighting venture, and be careful! older homes may not have the correct fuses or breakers for the wire size either thus causing wires to heat up and possible a fire!!! yet another reason for the amp meter!
  3. Jason Rose

    Jason Rose LawnSite Fanatic
    Messages: 5,858

    oh, additionally, if you are buying the lights new, the plugs have fuses in them. they limit you to 4 amps per line. they used to be 7 amps which allowed you to connect 4 strands (100 bulbs, C-9) but some safety nut reduced it to 4 amps and now you can only connect 2 (50 bulbs). if you do the math depending on the gauge of wire that the set is constructed of you will find that it is perfectly safe for the wire to handle around 7 amps without getting hot. repalcing the plug with a non-fused one is about the only solution to this. or buying lights comercially in bulk, on a spool of 1,000 feet...

    mini lights are also fused in the plug. 5 strings of 100 plugged together end to end will work fine. you can do 6, they will light, but possible in about 2 weeks you will be replacing the little fuses in the plug cause they get weak over time with that much load. not a hot idea if they're in the top of a tree!
  4. nelbuts

    nelbuts LawnSite Bronze Member
    from SW, FL
    Messages: 1,053

    here is a good site for Christmas light information. In fact this is the guy who started it all and you will be amazed at what we do. www.planetchristmas.com

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