cable sizes

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  • bergie
    Email problem

    • Sep 2010
    • 308
    #1

    cable sizes

    anybody know where to get tables for working out cable ratings.
    i have to quote on a 850 amp supply. it is in a trench most of the way and 52m long.
    i normally have to phone aberdare in joburg. the technical guy worked it out to 3x 240mm 4 core armoured cables.seems a bit of an overkill.would work out to over R 160 000 just for cable.
    Tags: None
    • murdock
      Suspended

      • Oct 2007
      • 2346
      #2
      if it is underground in a trench i also get 3 x 240mm

      i am sure you know this already...but just watch the fault levels when selecting equipment and cables for that matter...

      i did a project last year and was advised by everyone to use parallel cables but due to the fault level calculated at the 200 kw motor we had to use 1 x 185.

        Comment

        • mikilianis
          Bronze Member

          • Dec 2008
          • 125
          #3
          The fault levels do you mean p.s.c. or am I on the wrong path

            Comment

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