Shielded wire

Discussion in 'General Electronics Chat' started by Dritech, Nov 14, 2013.

  1. Dritech

    Thread Starter Well-Known Member

    Sep 21, 2011
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    Hi,

    I am going to use shielded wires for the power lines to a DC motor. Do I connect the shield with the power supply output ground or with the ground from the mains (input of the transformer)?
    Also, will twisting the wires help to reduce any noise?

    Thanks in advance.
     
  2. t06afre

    AAC Fanatic!

    May 11, 2009
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    DC motors are quite robust then it comes to noise, but create a lot of noise. The problem may be that noise from the DC motor affect other parts in the system. So it may be wise to pay attention to such thing as your grounding regime. And shielding of the control units.
     
  3. Dritech

    Thread Starter Well-Known Member

    Sep 21, 2011
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    5
    Thanks for the reply. Shell I connect the shielding with the supply ground or with the mains earthing?
     
  4. t06afre

    AAC Fanatic!

    May 11, 2009
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  5. MikeML

    AAC Fanatic!

    Oct 2, 2009
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    Shielding, by itself, will rarely help if the underlying problem is common-mode noise due to ground-loops. You should explain what is happening and how your system is wired.
     
  6. MaxHeadRoom

    Expert

    Jul 18, 2013
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