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maximum length of wire?

Discussion in 'Misc Electronics' started by [email protected], Nov 15, 2008.

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  1. Guest

    I have some video equipment i need to power off directly from my
    battery. I need a wire that is not too big, because i need to solder
    on a special quick-release connector that will be used to easily
    disconnect the cable from my video equipment. The cable requires 2
    wires inside, one for positive and one for negative on the battery.
    The biggest cable i found with 2 conductors, has 2x 22AWG wires
    inside. Some tell me that it is too small and some say it will work
    problem. I don't want the wires to start melting and cause a fire!
    video gear will draw no more than 1 amp total, directly off the car's
    12V battery. My question is, what is the maximum length of cable i
    use to remain safe? Thnks for your advice.
  2. Jasen Betts

    Jasen Betts Guest

    1A through 22AWG should not be a problem, but if you're worried you
    can use speaker cable....

    I don't want the wires to start melting and cause a fire!
    if you're connecting directly to the battery use a fuse near the
    battery. 2A wopuld be a good size.
    make the cable as long as you want so long as your video equipment can
    hnadle the voltage drop (10s of metres atleast) and the wire isn't
    left coiled under a blanket.

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