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XmasBoy

Making Custom Extension Cords

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Well with my halloween display construction, I realized that I used all of my extension cords on a 13 channel display that I thought would be enough for my 32 channel display. I know I was warned, but I guess it didn't sink in until now.

So as a solution, I'm planning on making my own extension cords. I found christmaslightshow.com and they looked like they had good products for the job. Does anyone have any previous experience with them? Would you reccomend them?

My other question is about the wire type. It said that they had SPT1 or SPT2 wire. What is the difference between these 2 types of wires?

Thanks for the help!

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I believe the difference between SPT1 and SPT2 is the amount of insulation/UV protection. There is also an SPT3 available at some vendors. As the number goes up the wires will last longer but may be a little harder to work with. I just bought some SPT3 from Creative Displays.

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There's really no reason to put a fuse on an extension cord that comes out of a controller channel. Why, do you ask? Because in most cases, you're only running one set of lights or one wireframe or one "something". That something usually doesn't pull anything close to the capacity of the SPT wire, which is at least 7 Amps.

I would use a "normal" extension cord to get power to my controller. And that needs to match the capacity of the controller load. But for the individual channels, you should be OK without a fuse, unless you're planning to run a string of 100 C9 incandescents :)

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I've looked at Novelty Lighting, Christmas Light Show, and CDI looking for the cheapest form of SPT wire. Christmas Light Show has 1,000 feet of SPT1 for $115, and that's the best price I've found. Is there anywhere else I should look that may have a better price?

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I've looked at Novelty Lighting, Christmas Light Show, and CDI looking for the cheapest form of SPT wire. Christmas Light Show has 1,000 feet of SPT1 for $115, and that's the best price I've found. Is there anywhere else I should look that may have a better price?

Check out www.skycraftsurplus.com. They have the best price on SPT1 and SPT2 wire when it's in stock.

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But th wire in bulk, take a dollar siv foot cord, cut, splice with the length of wore from the spool. Now you have a custom cord a few cents less than buying vampire plugs. I solder and tape / shrink my splices.

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But th wire in bulk, take a dollar siv foot cord, cut, splice with the length of wore from the spool. Now you have a custom cord a few cents less than buying vampire plugs. I solder and tape / shrink my splices.

Dan, I've been doing the same for several years and up to about 2000 feet or so, just be sure to use good heat shrink. The type with the gel inside works the best and nobody gets lit up like the lights!!

Doug

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