in-wall speaker wire

Discussion in 'Beginners, General Questions' started by Aris A, Apr 16, 2003.

  1. Aris A

    Aris A Stunt Coordinator

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    I just purchased a 12 ga. wire from parts express (CL3 rated, unshielded). What's the unshielded stands for? Is it okay to run them across power lines (like 110 outlets)?

    I appreciate the input guys.
     
  2. Neil Joseph

    Neil Joseph Lead Actor

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    I would avoid power lines as much as is possible.
     
  3. Glenn Overholt

    Glenn Overholt Producer

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    Running them parallel is your best bet to avoid any interference, but I do believe the code says that they cannot be closer then 15" to any 110v line.

    A drop down from the floor above or up (from below) might be your best bet.

    Glenn
     
  4. Bill Lucas

    Bill Lucas Supporting Actor

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    If you must cross an electrical feed you should cross it at a 90 degree angle.
     
  5. Allan Jayne

    Allan Jayne Cinematographer

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    Unshielded means that there is no metal braid or foil surrounding the conductors for the full length of the cable.

    Almost all speaker wire is unshielded. Shielded wire would be a lot more expensive. Interference suffered due to unshielded speaker cables is extremely rare because the signal currents are very large (volts) compared with interference levels (microvolts or at most small numbers of millivolts).

    Sheathed cable means there is a cloth or plastic jacket surrounding the conductors that are also separately insulated.

    Video hints:
    http://members.aol.com/ajaynejr/video.htm
     

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