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Thread: [C7] How much voltage drop with long extension cord?

  1. #1
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    Default [C7] How much voltage drop with long extension cord?

    Hello everyone!

    Im soon getting my christmas lights, im putting up 150feet of c7 christmas lights on my roof, about 150 bulbs.
    I got a converter with 1000w capacity so it should easily handle 750w from those lights.

    Now i got 3 outlets on this converter and i plan on having one string of 50 bulbs on the half side of the house and another string of 50 bulbs on the other side of the house, and another 50 on the garage.
    I have three cords im going to use, one that is 20 feet, one that is 40 feet and one that is 80 feet.

    So my question is, should i worry about any major voltage drop having those long cords going all the way from the string to the converter, im worrying especially about that 80 feet cord.
    Im asking because the more wire you use the more resistance in the cable. I hope you guys can help. Thank you!

  2. #2
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    Default Re: [C7] How much voltage drop with long extension cord?

    The 20' and 40' runs won't be a problem with a 16 ga. extension, but you should use a heavy duty outdoor cord (14 ga.) for the 80' run.

  3. #3
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    Default Re: [C7] How much voltage drop with long extension cord?

    Quote Originally Posted by rstehle View Post
    The 20' and 40' runs won't be a problem with a 16 ga. extension, but you should use a heavy duty outdoor cord (14 ga.) for the 80' run.
    Im using this 80 feet cord:
    http://www.christmascentral.com/stan...d-80-31104379/

    Do you think i could be fine though with that 80 feet cord, i really dont want to add more cost to the order because the shipping itself is already over 200 dollar, rip...

  4. #4
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    Default Re: [C7] How much voltage drop with long extension cord?

    Quote Originally Posted by rstehle View Post
    The 20' and 40' runs won't be a problem with a 16 ga. extension, but you should use a heavy duty outdoor cord (14 ga.) for the 80' run.
    Do you think i can get away with this 80 feet cord though?
    http://www.christmascentral.com/stan...d-80-31104379/

    I really dont want to order an even more expensive one due to the high price already on my order, the shipping itself to Norway costs over 200 dollars....

  5. #5
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    Default Re: [C7] How much voltage drop with long extension cord?

    If you already have a couple of 50' extension cords, plug them together and try your strings to see how bright they are.

  6. #6
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    Default Re: [C7] How much voltage drop with long extension cord?

    Home depot has 100 feet 16 gauge in green extension cord for 18.00 .
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  7. #7
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    Default Re: [C7] How much voltage drop with long extension cord?

    Home Depot does not ship worldwide :/

  8. #8
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    Default Re: [C7] How much voltage drop with long extension cord?

    I suppose they don't make 220volt Christmas lights.

    Dale P.

  9. #9
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    Default Re: [C7] How much voltage drop with long extension cord?

    Quote Originally Posted by AreFlame View Post
    I really dont want to order an even more expensive one due to the high price already on my order, the shipping itself to Norway costs over 200 dollars....
    Would it be cheaper to purchase the cord ends and get the wire locally?

    -Craig

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