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  • Main reason behind the insulation of current carrying conductor

    Discussion in 'The Leisure Lounge' started by AnshulJangalwa, Mar 12, 2016.

    1. AnshulJangalwa

      AnshulJangalwa New Member

      Mar 2016
      Likes Received:
      we know that electrical cables/current carrying conductors are insulated for safety purpose and to prevent leakage of current. As current passes through the conductor, heat is generated due to resistance in conductor. We provide insulation to prevent the loss of this heat generated to the surrounding. How the insulation is linked directly with increasing the current carrying capacity of conductor. whats the relation of thickness of insulation with current carrying capacity ?
    3. Erich

      Erich Well-Known Member

      Feb 2012
      Likes Received:
      We do NOT insulate a conductor to keep the heat inside. We insulate the conductor to prevent short circuits should the conductor touch a conductive surface.

      The insulation material and thickness controls the voltage level the wire can support without problems.

      High voltage AC transmission lines are not insulated with a coating. the support points on the towers is an insulating ceramic. This is done to minimize weight and allow the wire to cool itself.

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