Power cord for plama TV

Discussion in 'Electrical Forum discussion & Blog' started by gehrigc, Jan 21, 2008.

  1. gehrigc

    gehrigc New Member

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    Jan 21, 2008
    The cord it comes w/ is SJT cable and isn't as long as needed. I bought another cord but realized it's SVT.
    I don't know much about the difference, but doing some research, looks like the SJT is for hard usage/service and the SVT is a vacuuum cord.

    1) What does hard usage/service mean?
    2) Can I use the SVT cord instead of the SJT?

    Thanks!
    Gehrig
     
  2. Mikey

    Mikey Aspiring Old Fart, EE, computer & networking geek

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    Looks like the main difference is the SVT cord is designed to be more flexible. They're both rated similarly, although SJT is available in larger wire sizes. Oddly, though, one vendor's 12-3 SJT is only rated for 10A, the same as the 18-3 SVT. Let's wait for BobNH to respond; he'll know.
     
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  4. gehrigc

    gehrigc New Member

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    Thanks for the response.
    I forgot to mention that both cords are rated 18AWG / 3C.
     
  5. Mikey

    Mikey Aspiring Old Fart, EE, computer & networking geek

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    I'm pretty sure either would work fine in your application.
     
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    The big thing probably is how much longer is the new cord? A plasma doesn't draw a huge amount of energy, but then 18g isn't all that big, either. If you are going to buy one significantly longer, I'd probably want to go with a heavier gauge wire. You don't need the PS working harder than needed because of voltage drops.
     
  7. Chris75

    Chris75 Electrician

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    just out of curiosity, where is this tv located that the cord will not reach a receptacle?
     
  8. enosez

    enosez Member

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    What exactly is a "plama" tv?;);)
     
  9. Lakee911

    Lakee911 I&C Engineer (mostly WWTP)

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    18AWG wire is good for 7Amps, I believe. That should be enough for atleast 800 Watts. If you want to consider the voltage drop, it'll be approx 6.5 Ohm/Foot.

    I would just get a 14AWG three-prong extension cord and use the stock cable.

    Jason
     
  10. Chris75

    Chris75 Electrician

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    I would just rough in a new receptacle behind the tv so you dont even see it...;)
     
  11. kd

    kd New Member

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    Are you running this extension cord inside the wall so the TV installation looks neat ? It is against the Code to run extension cords inside a wall or cabinet. It is OK to run TV and computer cables inside a wall.
     
  12. Mikey

    Mikey Aspiring Old Fart, EE, computer & networking geek

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    That doesn't sound right to me, but I can't check the details right now. Maybe off by a factor of 1000 or so.
     
    Last edited: Jan 27, 2008
  13. Lakee911

    Lakee911 I&C Engineer (mostly WWTP)

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    Yup. Off by 1000. That's the resistance per 1000ft. Sorry about that. :p

    http://www.stealth316.com/2-wire-resistance.htm
     
  14. Bill Arden

    Bill Arden Computer Programmer

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  15. mikept

    mikept DIY Senior Member

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    Lakee did you mean milliohms? Or were you sugesting toaster wire?
     
    Last edited: Feb 12, 2008
  16. Lakee911

    Lakee911 I&C Engineer (mostly WWTP)

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  17. mikept

    mikept DIY Senior Member

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    =6.3851mOhm/ft
     
  18. Lakee911

    Lakee911 I&C Engineer (mostly WWTP)

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    Yup. Same thing.
     
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